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        438 API jobs in UK + 20 miles

        Full Stack Engineer

        MATCHED GROUP LIMITED
        City of London, London, EC4M 5SB
        From £75,000 to £85,000 per annum
        Tech: AWS, NodeJS, TypeScript, JavaScript, ReactJS - Why?start-up financial services, revolutionising the industry - Location: Hybrid - 1/2 days in the office (Central London) Our Client - A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and user-friendly financial products to consumers. The organisation is committed to empowering individuals by enhancing their understanding and control of personal finance through clarity, intelligence, and technology. Full StackEngineer-Responsibilities * Design, develop, and maintain advanced applications. * Collaborate with cross-functional teams to define, design, and ship new features. * Optimize components for maximum performance across a vast array of web- capable devices and browsers.
        Tech: AWS, NodeJS, TypeScript, JavaScript, ReactJS - Why?start-up financial services, revolutionising the industry - Location: Hybrid - 1/2 days in the office (Central London) Our Client - A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and user-friendly financial products to consumers. The organisation is committed to empowering individuals by enhancing their understanding and control of personal finance through clarity, intelligence, and technology. Full StackEngineer-Responsibilities * Design, develop, and maintain advanced applications. * Collaborate with cross-functional teams to define, design, and ship new features. * Optimize components for maximum performance across a vast array of web- capable devices and browsers.
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        Hawkrose is delighted to announce we are hiring for the role of Senior Software Developer. In this role, the successful candidate will be responsible for the delivery of exciting projects and products across our Civil Aviation, Defence and Public Sector industry verticals. The successful candidate will be given the autonomy to set their own direction of work, and will work closely with the Head of Development to establish best practice across the Hawkrose development function. The role requires a mixture of home and office working with the expectation that the successful candidate will manage their own time and location to best deliver for our customers. Required Skills - The successful candidate will be a full stack software engineer with experience of enterprise grade software development and an agile development environment.
        Hawkrose is delighted to announce we are hiring for the role of Senior Software Developer. In this role, the successful candidate will be responsible for the delivery of exciting projects and products across our Civil Aviation, Defence and Public Sector industry verticals. The successful candidate will be given the autonomy to set their own direction of work, and will work closely with the Head of Development to establish best practice across the Hawkrose development function. The role requires a mixture of home and office working with the expectation that the successful candidate will manage their own time and location to best deliver for our customers. Required Skills - The successful candidate will be a full stack software engineer with experience of enterprise grade software development and an agile development environment.
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        AVEVA is creating software trusted by over 90% of leading industrial companies. Job Title: Senior Software Developer - Location: Cambridge, United Kingdom Hybrid (3 days at the office) Employment Type: Full-time regular (flexible working options available) The job - As part of our Industrial Platform Group, you will join a talented team of software engineers dedicated to designing, developing, and evolving CONNECT - the core industrial intelligence platform at AVEVA. CONNECT powers a diverse range of digital solutions deployed across global industries by AVEVA and our partners. In this role, youll work closely with internal stakeholders and engineering teams to understand requirements, shape system architecture, and deliver scalable platform capabilities. Your contributions will directly impact how CONNECT supports our customers digital transformation journeys and ens
        AVEVA is creating software trusted by over 90% of leading industrial companies. Job Title: Senior Software Developer - Location: Cambridge, United Kingdom Hybrid (3 days at the office) Employment Type: Full-time regular (flexible working options available) The job - As part of our Industrial Platform Group, you will join a talented team of software engineers dedicated to designing, developing, and evolving CONNECT - the core industrial intelligence platform at AVEVA. CONNECT powers a diverse range of digital solutions deployed across global industries by AVEVA and our partners. In this role, youll work closely with internal stakeholders and engineering teams to understand requirements, shape system architecture, and deliver scalable platform capabilities. Your contributions will directly impact how CONNECT supports our customers digital transformation journeys and ens
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        Role/Job Title: Software Engineer C++, C# .Net - Work Location: Edinburgh - Role type Permanent/Fixed Term/Contracting: Contracting - Mode of working Hybrid/Office based: Office Based - The Role - We are seeking an experienced and hands-on Software Engineer with skills in developing applications on C++, C# .Net and with a Utilities background. Your Responsibilities * Development of applications using C++, C# .Net for power utilities products - Your Profile * In-depth knowledge of C# .NET languages * Design, develop, and manage high-performance software applications using C# * Implement and optimize code for performance, security, and memory efficiency * Test and debug various .NET applications * Monitor and optimize the performance and responsiveness of .NET applications across multiple platforms and environments * Integrate third-party libraries, tools, and APIs into
        Role/Job Title: Software Engineer C++, C# .Net - Work Location: Edinburgh - Role type Permanent/Fixed Term/Contracting: Contracting - Mode of working Hybrid/Office based: Office Based - The Role - We are seeking an experienced and hands-on Software Engineer with skills in developing applications on C++, C# .Net and with a Utilities background. Your Responsibilities * Development of applications using C++, C# .Net for power utilities products - Your Profile * In-depth knowledge of C# .NET languages * Design, develop, and manage high-performance software applications using C# * Implement and optimize code for performance, security, and memory efficiency * Test and debug various .NET applications * Monitor and optimize the performance and responsiveness of .NET applications across multiple platforms and environments * Integrate third-party libraries, tools, and APIs into
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        Role: Full Stack Software Engineer (UK-based, early-stage startup) £60,000 - £80,000 per annum | No Sponsorship | x3 week in office - Backed by technology start up accelerator and VC - Join a mission-driven AI startup transforming how medical and healthcare organisations collaborate. Using machine learning and advanced recommendation systems, the team helps to matchmake some of the leading Medical and Pharmaceuticalbusinesses with their extensive network of professionals. This allows them to engage seamlessly all while reducing operational costs so resources can focus on changing lives. This is the chance to work on cutting-edge AI technology at an early stage with real influence on product and architecture to help medical organisations do more with their resources while changing lives and impact clients across the US and FTSE markets.
        Role: Full Stack Software Engineer (UK-based, early-stage startup) £60,000 - £80,000 per annum | No Sponsorship | x3 week in office - Backed by technology start up accelerator and VC - Join a mission-driven AI startup transforming how medical and healthcare organisations collaborate. Using machine learning and advanced recommendation systems, the team helps to matchmake some of the leading Medical and Pharmaceuticalbusinesses with their extensive network of professionals. This allows them to engage seamlessly all while reducing operational costs so resources can focus on changing lives. This is the chance to work on cutting-edge AI technology at an early stage with real influence on product and architecture to help medical organisations do more with their resources while changing lives and impact clients across the US and FTSE markets.
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        MERITUS are working with a large consulting organisation looking for a Senior Java Developer on a project working into a UK Central Government client. You'll play a key role in designing, coding, reviewing, and testing solutions within the Java stack, collaborating with developers, testers, and DevOps engineers. The position also involves working on automated tests, infrastructure updates, and maintaining high-quality standards across all stages of development. The role is remote with monthly visits into the London office on an initial 6 Month contract. * Design, code, review, and unit test applications using the Java stack. * Collaborate with cross-functional teams, including developers, testers, and DevOps engineers. * Support and enhance legacy systems currently in maintenance mode. * Contribute to automated testing (C#) and infrastructure improvements (Docker, Ans
        MERITUS are working with a large consulting organisation looking for a Senior Java Developer on a project working into a UK Central Government client. You'll play a key role in designing, coding, reviewing, and testing solutions within the Java stack, collaborating with developers, testers, and DevOps engineers. The position also involves working on automated tests, infrastructure updates, and maintaining high-quality standards across all stages of development. The role is remote with monthly visits into the London office on an initial 6 Month contract. * Design, code, review, and unit test applications using the Java stack. * Collaborate with cross-functional teams, including developers, testers, and DevOps engineers. * Support and enhance legacy systems currently in maintenance mode. * Contribute to automated testing (C#) and infrastructure improvements (Docker, Ans
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        we are hiring forTechnical Data Architect - location: Central London - Type : Permanent - Hybrid role (2-3 days from client location) We are seeking a highly skilled TechnicalData Architect- with expertise in Databricks, PySpark, and modern data engineering practices. The ideal candidate will lead the design, development, and optimization of scalable data pipelines, while ensuring data accuracy, consistency, and performance across the enterprise Lakehouse platform. This role requires strong leadership, technical depth, and the ability to collaborate with cross-functional teams. Key Responsibilities - Lead the design, development, and maintenance of scalable, high-performance data pipelines on Databricks. Architect and implement data ingestion, transformation, and integration workflows using PySpark, SQL, and Delta Lake.
        we are hiring forTechnical Data Architect - location: Central London - Type : Permanent - Hybrid role (2-3 days from client location) We are seeking a highly skilled TechnicalData Architect- with expertise in Databricks, PySpark, and modern data engineering practices. The ideal candidate will lead the design, development, and optimization of scalable data pipelines, while ensuring data accuracy, consistency, and performance across the enterprise Lakehouse platform. This role requires strong leadership, technical depth, and the ability to collaborate with cross-functional teams. Key Responsibilities - Lead the design, development, and maintenance of scalable, high-performance data pipelines on Databricks. Architect and implement data ingestion, transformation, and integration workflows using PySpark, SQL, and Delta Lake.
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        Position: AI Engineer / AI Agent / Backend AI Engineer - Location: Remote - Work Type: Contract - We're looking for an AI Engineer to design and deliver scalable AI/ML systems and agentic applications. You'll work on LLMs, RAG pipelines, model deployment, and cloud-native solutions that drive real-world impact. * Strong coding skills in Java / TypeScript /Python * Experience with LLMs, NLP, and ML frameworks (Hugging Face, PyTorch, TensorFlow, LangChain) * Cloud & DevOps expertise (AWS/Azure, Docker, Kubernetes, CI/CD pipelines) * Knowledge of microservices, APIs, distributed systems - Why join us? * Work on cutting-edge AI innovation * Collaborative, cross-functional environment * Competitive salary + growth opportunities - We encourage you to apply or send me your updated resume to nandiraju . b @ randstad . co. uk
        Position: AI Engineer / AI Agent / Backend AI Engineer - Location: Remote - Work Type: Contract - We're looking for an AI Engineer to design and deliver scalable AI/ML systems and agentic applications. You'll work on LLMs, RAG pipelines, model deployment, and cloud-native solutions that drive real-world impact. * Strong coding skills in Java / TypeScript /Python * Experience with LLMs, NLP, and ML frameworks (Hugging Face, PyTorch, TensorFlow, LangChain) * Cloud & DevOps expertise (AWS/Azure, Docker, Kubernetes, CI/CD pipelines) * Knowledge of microservices, APIs, distributed systems - Why join us? * Work on cutting-edge AI innovation * Collaborative, cross-functional environment * Competitive salary + growth opportunities - We encourage you to apply or send me your updated resume to nandiraju . b @ randstad . co. uk
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        NEWFEATURED

        Java Developer - Active SC

        Hays
        London
        £600.0 - £640.0 per day + up to £640 pd (Inside IR35)
        Up to £640 per day (Inside IR35) London / Remote - 6 months - My client is an instantly recognisable consultancy who urgently requires a Lead Full Stack Developer to join a business-critical programme. * Proven experience working as a Lead Java Developer within the public sector * Active Security Clearance (SC) * Java (8/11/17+): Expert-level programming and deep understanding of the language and its core libraries * Spring Boot: Expert in building RESTful APIs and microservices * AWS: Strong experience with core AWS services (EC2, S3, Lambda, IAM, etc.) * Kafka / Messaging Systems: Expertise in building event-driven architectures * SQL: Strong experience with relational databases and query optimization * REST / JSON APIs: Designing, developing, and consuming scalable APIs * Docker: Proficiency in containerizing applications for local and cloud environments
        Up to £640 per day (Inside IR35) London / Remote - 6 months - My client is an instantly recognisable consultancy who urgently requires a Lead Full Stack Developer to join a business-critical programme. * Proven experience working as a Lead Java Developer within the public sector * Active Security Clearance (SC) * Java (8/11/17+): Expert-level programming and deep understanding of the language and its core libraries * Spring Boot: Expert in building RESTful APIs and microservices * AWS: Strong experience with core AWS services (EC2, S3, Lambda, IAM, etc.) * Kafka / Messaging Systems: Expertise in building event-driven architectures * SQL: Strong experience with relational databases and query optimization * REST / JSON APIs: Designing, developing, and consuming scalable APIs * Docker: Proficiency in containerizing applications for local and cloud environments
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        Position: Backend Engineer - Location: Remote (UK) Work Type: Contract - Join our team to build the backbone of a global music streaming platform! We're looking for a JAVA Backend Engineer who loves coding, solving problems, and delivering features that reach millions of users. * Build scalable Java & SpringBoot microservices. * Develop APIs and backend tools for engineers across the company. * Use TDD, CI/CD, Docker, Kubernetes, Jenkins, and GCP services. * Work with alternate languages like Python, Scala, Golang, or Node.js for backend tasks. * Collaborate in an Agile environment with cross-functional teams. * Strong backend development skills (Java and microservices). * Experience with microservices, TDD, CI/CD, Docker & Kubernetes, and cloud platforms (GCP preferred). * Familiarity with and one of Python, Golang, Scala or Node.js is a plus.
        Position: Backend Engineer - Location: Remote (UK) Work Type: Contract - Join our team to build the backbone of a global music streaming platform! We're looking for a JAVA Backend Engineer who loves coding, solving problems, and delivering features that reach millions of users. * Build scalable Java & SpringBoot microservices. * Develop APIs and backend tools for engineers across the company. * Use TDD, CI/CD, Docker, Kubernetes, Jenkins, and GCP services. * Work with alternate languages like Python, Scala, Golang, or Node.js for backend tasks. * Collaborate in an Agile environment with cross-functional teams. * Strong backend development skills (Java and microservices). * Experience with microservices, TDD, CI/CD, Docker & Kubernetes, and cloud platforms (GCP preferred). * Familiarity with and one of Python, Golang, Scala or Node.js is a plus.
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        NEWFEATURED

        Backend Engineer - London Onsite

        LJ Recruitment Limited
        EC1, City of London
        £60000 - £75000 per annum
        Backend Engineer - Scale Systems with Real Impact ?? Tired of tinkering at the edges? Want to actually shape the backbone of a platform that's transforming how the world's biggest enterprises run their tech? This is one of those rare roles where you get in early, build the foundations, and watch your work scale across global businesses. We're working with a high-growth London startup on a mission to reinvent enterprise software. Their AI-driven platform is already saving household-name customers millions in IT costs, shaving months off ERP project timelines, and making sense of the mess that legacy systems leave behind. SAP is just the beginning - they're building a whole new category of Enterprise System Intelligence. The Role * Build core systems capable of handling tens of millions of lines of code and large-scale LLM workloads.
        Backend Engineer - Scale Systems with Real Impact ?? Tired of tinkering at the edges? Want to actually shape the backbone of a platform that's transforming how the world's biggest enterprises run their tech? This is one of those rare roles where you get in early, build the foundations, and watch your work scale across global businesses. We're working with a high-growth London startup on a mission to reinvent enterprise software. Their AI-driven platform is already saving household-name customers millions in IT costs, shaving months off ERP project timelines, and making sense of the mess that legacy systems leave behind. SAP is just the beginning - they're building a whole new category of Enterprise System Intelligence. The Role * Build core systems capable of handling tens of millions of lines of code and large-scale LLM workloads.
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        Location: Home Based 5 Month Contract Pay Rate: £600 - £650 per day (INSIDE IR35) Skills: Java 8, Spring, Maven, Git, JUnit, Web APIs (REST/JSON and XML/SOAP), SC Clearance We are looking to recruit an SC Cleared Java Developer for a leading technology consultancy on an initial 5 month contract. This is a fully remote role. Due to the nature of the project valid SC Clearance is required. * Java 8 * Spring * Maven * Git * Junit * Web APIs (REST/JSON and XML/SOAP) * JSPs, Javascript, JQuery, html, CSS, Mockito/JMock, MS SQL Server, MyBatis, Azure, Azure DevOps Pipelines, Docker, Ansible, Linux, Java 11, Spring Boot
        Location: Home Based 5 Month Contract Pay Rate: £600 - £650 per day (INSIDE IR35) Skills: Java 8, Spring, Maven, Git, JUnit, Web APIs (REST/JSON and XML/SOAP), SC Clearance We are looking to recruit an SC Cleared Java Developer for a leading technology consultancy on an initial 5 month contract. This is a fully remote role. Due to the nature of the project valid SC Clearance is required. * Java 8 * Spring * Maven * Git * Junit * Web APIs (REST/JSON and XML/SOAP) * JSPs, Javascript, JQuery, html, CSS, Mockito/JMock, MS SQL Server, MyBatis, Azure, Azure DevOps Pipelines, Docker, Ansible, Linux, Java 11, Spring Boot
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        Requirement SAP BTP CPI Architect * Experience 14+ years * Location West London ( 3 days WFO ) * Build integration solutions using SAP BTP Integration Suite toconnect different systems smoothly. * Use Advanced Event Mesh to design real-time event-drivenintegrations. * Work with SAP Datasphere to manage and integrate dataeffectively. * Review functional specs and proposed integration solutions tomake sure theyll work well across platforms. * Partner with business and IT teams to turn their needs intopractical integration designs. * Keep security and compliance top of mind when setting up integration flows. * Guide best practices for APIs and integration patterns acrossprojects. * CI/CD approaches to automate deployment and testing ofintegration components. * Help and support other team members, and document your workso its easy to follow.
        Requirement SAP BTP CPI Architect * Experience 14+ years * Location West London ( 3 days WFO ) * Build integration solutions using SAP BTP Integration Suite toconnect different systems smoothly. * Use Advanced Event Mesh to design real-time event-drivenintegrations. * Work with SAP Datasphere to manage and integrate dataeffectively. * Review functional specs and proposed integration solutions tomake sure theyll work well across platforms. * Partner with business and IT teams to turn their needs intopractical integration designs. * Keep security and compliance top of mind when setting up integration flows. * Guide best practices for APIs and integration patterns acrossprojects. * CI/CD approaches to automate deployment and testing ofintegration components. * Help and support other team members, and document your workso its easy to follow.
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        Senior Data Scientist / Engineer

        Serve Legal
        Pimlico, SW1
        From £60,000 to £75,000 per annum plus 10% company bonus scheme
        Reports to: Data Director / Executive Sponsor - Location: Remote with occasional travel to London (2 times a month) Contract: Full-time, permanent - Base Salary: £60,000 £75,000 dependent on location and experience + 10% bonus scheme - Why This Role Exists - Serve Legal is forging new ground: transforming operational data into market-ready products, algorithms, and insights that redefine client value. As a driver of our Innovation Labs, you will experiment, prototype, and build compelling data solutions in a startup-within-a-business environmentboldly iterating and owning proofs-of-concept that scale. This is a position with a balance between data science and engineering. Besides exploring and analysing datasets, you will help to establish a cloud native data foundations, with a data warehouse and supporting data pipelines.
        Reports to: Data Director / Executive Sponsor - Location: Remote with occasional travel to London (2 times a month) Contract: Full-time, permanent - Base Salary: £60,000 £75,000 dependent on location and experience + 10% bonus scheme - Why This Role Exists - Serve Legal is forging new ground: transforming operational data into market-ready products, algorithms, and insights that redefine client value. As a driver of our Innovation Labs, you will experiment, prototype, and build compelling data solutions in a startup-within-a-business environmentboldly iterating and owning proofs-of-concept that scale. This is a position with a balance between data science and engineering. Besides exploring and analysing datasets, you will help to establish a cloud native data foundations, with a data warehouse and supporting data pipelines.
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        Location: Hybrid Working London Office/Remote - Reporting to: Engineering Manager - We are seeking innovative Linux Systems Engineer to help shape the next generation of secure endpoint solutions. This role is open to both experienced engineers ready to tackle complex challenges and mid-level engineers eager to learn, grow, and innovate. You will work at the intersection of Linux internals, networking, virtualisation, and security, building solutions for high-profile clients. The work you do will contribute to endpoint technologies that will set the direction for the next decadejust as todays established solutions set the standard a decade ago. * Linux OS Development: Design, develop, and maintain Linux-based operating systems with a strong emphasis on security, performance, and reliability. * System & Security Engineering: Work with Linux distributions, kernel-level
        Location: Hybrid Working London Office/Remote - Reporting to: Engineering Manager - We are seeking innovative Linux Systems Engineer to help shape the next generation of secure endpoint solutions. This role is open to both experienced engineers ready to tackle complex challenges and mid-level engineers eager to learn, grow, and innovate. You will work at the intersection of Linux internals, networking, virtualisation, and security, building solutions for high-profile clients. The work you do will contribute to endpoint technologies that will set the direction for the next decadejust as todays established solutions set the standard a decade ago. * Linux OS Development: Design, develop, and maintain Linux-based operating systems with a strong emphasis on security, performance, and reliability. * System & Security Engineering: Work with Linux distributions, kernel-level
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        About the Program - Our placement interns are our future engineers and are treated as valued members of the team from day one. In addition to a competitive salary, benefits, and generous holiday allowance, you will have frequent 1:1 meetings with your manager and a dedicated team mentor throughout your placement. The program also provides full access to internal training resources (Udemy, Pluralsight) and opportunities for intimate conversations with key business leaders. You'll build a global network with other interns and continuously refine your career goals with guidance from our emerging talent team. Although Rapid7 has a hybrid working model, we highly recommend interns work from the office frequently to support their development and networking. About the Role - Rapid7 is seeking curious, resourceful, and motivated software engineering placement interns with an
        About the Program - Our placement interns are our future engineers and are treated as valued members of the team from day one. In addition to a competitive salary, benefits, and generous holiday allowance, you will have frequent 1:1 meetings with your manager and a dedicated team mentor throughout your placement. The program also provides full access to internal training resources (Udemy, Pluralsight) and opportunities for intimate conversations with key business leaders. You'll build a global network with other interns and continuously refine your career goals with guidance from our emerging talent team. Although Rapid7 has a hybrid working model, we highly recommend interns work from the office frequently to support their development and networking. About the Role - Rapid7 is seeking curious, resourceful, and motivated software engineering placement interns with an
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        World Wide Technology (WWT), a global technology integrator and IT solutions provider. World Wide Technology, established in 1990 in St. Louis, Missouri, collaborates with OEMs like Cisco and Dell EMC to offer infrastructure security and custom app development services to Fortune 500 companies in various sectors. With over 10,000 employees globally, we generate $17 billion in annual revenue and operate in regions including the US, UK, Canada, Europe, Costa Rica, APAC, and Middle East. We're proud to be consistently recognized as a top employer by Fortune and Glassdoor for over 13 years. World Wide Technology Holding Co, LLC (WWT) has an opportunity for a AI Platform Operations Manager. Below is the JD for the role. Please help me with the information needed to process your application, and I will contact you to discuss the role. This is a contract Role & Outside IR35
        World Wide Technology (WWT), a global technology integrator and IT solutions provider. World Wide Technology, established in 1990 in St. Louis, Missouri, collaborates with OEMs like Cisco and Dell EMC to offer infrastructure security and custom app development services to Fortune 500 companies in various sectors. With over 10,000 employees globally, we generate $17 billion in annual revenue and operate in regions including the US, UK, Canada, Europe, Costa Rica, APAC, and Middle East. We're proud to be consistently recognized as a top employer by Fortune and Glassdoor for over 13 years. World Wide Technology Holding Co, LLC (WWT) has an opportunity for a AI Platform Operations Manager. Below is the JD for the role. Please help me with the information needed to process your application, and I will contact you to discuss the role. This is a contract Role & Outside IR35
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        Location:Ipswich (three days onsite, two days remote) Duration:Three months rolling INSIDE IR35 - We are looking for an experiencedMicroservices Developerwith a strong background inJavaandSpring Bootframeworks to design, develop, and maintain scalable Back End services. The ideal candidate will have hands-on experience building distributed systems usingSpring Boot WebFluxandSpring Boot MVC, and be proficient with modern DevOps tools and data management technologies. This position requires a developer who understands the principles of microservice architecture, containerization, and data-driven application design. * Design, develop, and maintainJava-based microservicesusingSpring Boot WebFluxandSpring Boot MVCframeworks. * Implement RESTful APIs and integrate microservices within distributed systems. * Optimize services for performance, scalability, and fault tolerance
        Location:Ipswich (three days onsite, two days remote) Duration:Three months rolling INSIDE IR35 - We are looking for an experiencedMicroservices Developerwith a strong background inJavaandSpring Bootframeworks to design, develop, and maintain scalable Back End services. The ideal candidate will have hands-on experience building distributed systems usingSpring Boot WebFluxandSpring Boot MVC, and be proficient with modern DevOps tools and data management technologies. This position requires a developer who understands the principles of microservice architecture, containerization, and data-driven application design. * Design, develop, and maintainJava-based microservicesusingSpring Boot WebFluxandSpring Boot MVCframeworks. * Implement RESTful APIs and integrate microservices within distributed systems. * Optimize services for performance, scalability, and fault tolerance
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        About PTSG Ltd PTSG Ltd is a market leader in specialist services to the construction and FM sectors, delivering safety, compliance, and maintenance solutions nationwide. As Data Integration Specialist you will be responsible for designing, implementing, and maintaining data integrations that support the seamless flow of data between systems, applications, and databases. This is a great opportunity for someone to work collaboratively on brand new platforms, focusing on green field development, across a multi company organisation. Reporting to the Data Engineering Manager, the Data Integration Specialist will deliver all aspects of data integration from demand planning through to handover into operational IT, retaining a responsibility to support IT operations in occasional exceptional / complex problems (3rd / 4th line).
        About PTSG Ltd PTSG Ltd is a market leader in specialist services to the construction and FM sectors, delivering safety, compliance, and maintenance solutions nationwide. As Data Integration Specialist you will be responsible for designing, implementing, and maintaining data integrations that support the seamless flow of data between systems, applications, and databases. This is a great opportunity for someone to work collaboratively on brand new platforms, focusing on green field development, across a multi company organisation. Reporting to the Data Engineering Manager, the Data Integration Specialist will deliver all aspects of data integration from demand planning through to handover into operational IT, retaining a responsibility to support IT operations in occasional exceptional / complex problems (3rd / 4th line).
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        NEWFEATURED

        AI Platform Operations Manager

        Networking People (UK) Limited
        London
        £550 - £600 per day + Outside of IR35
        Contract: AI Platform Operations Manager - Duration: 6 Months - Start Date: ASAP - Location: Remote with travel to multiple sites - Rate: Negotiable - Support Engineer / Cluster Administrator to provide Level 1 and Level 2 support for AI platform. This role will be customer facing, involve technical troubleshooting, and collaboration with vendor engineering teams to ensure seamless AI platform operations. Key Responsibilities * L1 support for customer-reported issues and requests * L2 support by diagnosing, replicating, and troubleshooting issues across platform and infrastructure. * Coordinate resolution of complex issues (L3) to (vendor) product/engineering teams and manage vendor responses * Monitor system health, alerts, and customer usage patterns * Document solutions/workarounds, create and maintain knowledge, document support procedures * Automate common tasks
        Contract: AI Platform Operations Manager - Duration: 6 Months - Start Date: ASAP - Location: Remote with travel to multiple sites - Rate: Negotiable - Support Engineer / Cluster Administrator to provide Level 1 and Level 2 support for AI platform. This role will be customer facing, involve technical troubleshooting, and collaboration with vendor engineering teams to ensure seamless AI platform operations. Key Responsibilities * L1 support for customer-reported issues and requests * L2 support by diagnosing, replicating, and troubleshooting issues across platform and infrastructure. * Coordinate resolution of complex issues (L3) to (vendor) product/engineering teams and manage vendor responses * Monitor system health, alerts, and customer usage patterns * Document solutions/workarounds, create and maintain knowledge, document support procedures * Automate common tasks
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        About Revolut - People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of products including spending, saving, investing, exchanging, travelling, and more help our 65+ million customers get more from their money every day. As we continue our lightning-fast growth,? 2 things are essential to our success: our people and our culture. In recognition of our outstanding employee experience, we've been certified as a Great Place to Work. So far, we have 10,000+ people working around the world, from our offices and remotely, to help us achieve our mission. And we're looking for more brilliant people. People who love building great products, redefining success, and turning the complexity of a chaotic world into the simplicity of a beautiful solution. About the role
        About Revolut - People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of products including spending, saving, investing, exchanging, travelling, and more help our 65+ million customers get more from their money every day. As we continue our lightning-fast growth,? 2 things are essential to our success: our people and our culture. In recognition of our outstanding employee experience, we've been certified as a Great Place to Work. So far, we have 10,000+ people working around the world, from our offices and remotely, to help us achieve our mission. And we're looking for more brilliant people. People who love building great products, redefining success, and turning the complexity of a chaotic world into the simplicity of a beautiful solution. About the role
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        Date Posted: 07/10/2025 - Location: London - Job Type: Full time - London Hybrid (minimum 50% office based) Who are Just? We help people achieve a better later life. Thats our purpose and its the reason we exist. We are a fast-growing FTSE 250 company helping customers enjoy the retirement they deserve. We do this through a variety of market leading, award-winning products and services, delivered by a diverse team of over 1,400 purpose-led colleagues who genuinely put the customer at the heart of everything we do. This is a brilliant time to join our business. We are on an exciting growth journey to become the UKs most loved retirement expert. About the Role - We are leading a bold and transformative journey - and were looking for a Product Owner to join our flagship technology system transformation programme within our Retail B2B2C business.
        Date Posted: 07/10/2025 - Location: London - Job Type: Full time - London Hybrid (minimum 50% office based) Who are Just? We help people achieve a better later life. Thats our purpose and its the reason we exist. We are a fast-growing FTSE 250 company helping customers enjoy the retirement they deserve. We do this through a variety of market leading, award-winning products and services, delivered by a diverse team of over 1,400 purpose-led colleagues who genuinely put the customer at the heart of everything we do. This is a brilliant time to join our business. We are on an exciting growth journey to become the UKs most loved retirement expert. About the Role - We are leading a bold and transformative journey - and were looking for a Product Owner to join our flagship technology system transformation programme within our Retail B2B2C business.
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        Job Title: Naimuri - Software Engineer - Location: Manchester - Job Type: Permanent - Fulltime - We can offer you the chance to help make the UK a safer place through innovation, working in partnership with government and law enforcement organisations on some of the most challenging data and technology problems out there. We strongly encourage candidates of all different backgrounds and identities to apply. We are committed to building an inclusive, safe and supportive environment that allows everyone to do their best work. We are happy to support any accessibility or neurodiversity requirements that you may need during the recruitment process. Weve been around for about ten years and grown from being a little-known tech start-up to creating our own community at the heart of the thriving and diverse tech and digital ecosystem of Greater Manchester.
        Job Title: Naimuri - Software Engineer - Location: Manchester - Job Type: Permanent - Fulltime - We can offer you the chance to help make the UK a safer place through innovation, working in partnership with government and law enforcement organisations on some of the most challenging data and technology problems out there. We strongly encourage candidates of all different backgrounds and identities to apply. We are committed to building an inclusive, safe and supportive environment that allows everyone to do their best work. We are happy to support any accessibility or neurodiversity requirements that you may need during the recruitment process. Weve been around for about ten years and grown from being a little-known tech start-up to creating our own community at the heart of the thriving and diverse tech and digital ecosystem of Greater Manchester.
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        Job Title: Naimuri - Software Engineer - Location: Manchester - Job Type: Permanent - Fulltime - We can offer you the chance to help make the UK a safer place through innovation, working in partnership with government and law enforcement organisations on some of the most challenging data and technology problems out there. We strongly encourage candidates of all different backgrounds and identities to apply. We are committed to building an inclusive, safe and supportive environment that allows everyone to do their best work. We are happy to support any accessibility or neurodiversity requirements that you may need during the recruitment process. Weve been around for about ten years and grown from being a little-known tech start-up to creating our own community at the heart of the thriving and diverse tech and digital ecosystem of Greater Manchester.
        Job Title: Naimuri - Software Engineer - Location: Manchester - Job Type: Permanent - Fulltime - We can offer you the chance to help make the UK a safer place through innovation, working in partnership with government and law enforcement organisations on some of the most challenging data and technology problems out there. We strongly encourage candidates of all different backgrounds and identities to apply. We are committed to building an inclusive, safe and supportive environment that allows everyone to do their best work. We are happy to support any accessibility or neurodiversity requirements that you may need during the recruitment process. Weve been around for about ten years and grown from being a little-known tech start-up to creating our own community at the heart of the thriving and diverse tech and digital ecosystem of Greater Manchester.
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        We are urgently seeking a highly skilledSenior MLOps Engineer with strong Data Science experiencefor a key role with a leading global technology consultancy at their London office. This is a fantastic opportunity to bridge the gap between cutting-edge AI/ML research and scalable, production-ready solutions. In this role, you will be the crucial link between Data Science and DevOps teams, focusing on deploying, managing, and automating the full machine learning lifecycle using a modern AWS stack. * Act as the technical liaison between Data Science and DevOps, ensuring smooth deployment and integration of AI/ML models. * Design, develop, and deploy microservices and standalone applications to serve models, including those from Hugging Face. * Build, train, and evaluate ML models usingAWS SageMaker, Bedrock, Glue, and Fargate.
        We are urgently seeking a highly skilledSenior MLOps Engineer with strong Data Science experiencefor a key role with a leading global technology consultancy at their London office. This is a fantastic opportunity to bridge the gap between cutting-edge AI/ML research and scalable, production-ready solutions. In this role, you will be the crucial link between Data Science and DevOps teams, focusing on deploying, managing, and automating the full machine learning lifecycle using a modern AWS stack. * Act as the technical liaison between Data Science and DevOps, ensuring smooth deployment and integration of AI/ML models. * Design, develop, and deploy microservices and standalone applications to serve models, including those from Hugging Face. * Build, train, and evaluate ML models usingAWS SageMaker, Bedrock, Glue, and Fargate.
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        What is the average salary for API in UK?

        Average salary per year
        £57,499

        The average salary for a API in UK is £57,499. API in UK salaries range from £47,499 to £77,499.

        Frequently Asked Questions

        How many API jobs are there in UK?
        There are 438 API jobs within 20 miles of UK available on CWJobs right now.

        Where in UK are these jobs?
        You can find jobs in South East, Midlands, North West.

        What other similar jobs are there to API jobs in UK?
        As well as API jobs in UK, you can find IT, Software Development, Infrastructure, amongst many others.