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8 Permanent API jobs in South West + 20 miles
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Experience with integration, E2E and API testing
Experience with integration, E2E and API testing
PREMIUM
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Strong background in API development, cloud adoption frameworks, and modern architectures.
Strong background in API development, cloud adoption frameworks, and modern architectures.
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Senior Software Engineer (PHP, Typescript) - Trading
Senior Software Engineer (PHP, Typescript) - Trading
Hargreaves Lansdown
BS1, Bristol
£60000 - £80000 per annum + Pension, Bonus etc
Principles of RESTful API development, including structuring, documenting, versioning, testing and stubbing/mocking. * Third party API services integration experience.
Principles of RESTful API development, including structuring, documenting, versioning, testing and stubbing/mocking. * Third party API services integration experience.
NEWFEATURED
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Are you an experienced Salesforce Architect, looking to take on a challenging role, at a global, 500+ staff strong UK based Software product company? You’ll be keen to take on a key role within the Data Ops team & own all things Salesforce related, across the technical, data & stakeholder management piece. Working across the business in this highly visible role, not only is Salesforce used extensively, internally, but they are also major Salesforce partners & are embedded into the Salesforce Ecosystem. Mainly, you should be a technical expert in Salesforce but also have the functional soft skills to make sure that the architecture & business requirements are effectively translated into reality. Role title: Salesforce Architect. Senior Salesforce Developer. Location: Central London – but largely irrelevant as this role is 98% remote.
Are you an experienced Salesforce Architect, looking to take on a challenging role, at a global, 500+ staff strong UK based Software product company? You’ll be keen to take on a key role within the Data Ops team & own all things Salesforce related, across the technical, data & stakeholder management piece. Working across the business in this highly visible role, not only is Salesforce used extensively, internally, but they are also major Salesforce partners & are embedded into the Salesforce Ecosystem. Mainly, you should be a technical expert in Salesforce but also have the functional soft skills to make sure that the architecture & business requirements are effectively translated into reality. Role title: Salesforce Architect. Senior Salesforce Developer. Location: Central London – but largely irrelevant as this role is 98% remote.
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The Head of Application and Product Security is a strategic leadership role responsible for safeguarding the application landscape and digital products within HL. This pivotal position ensures that security is embedded throughout the software development lifecycle and product innovation pipeline, providing assurance to clients, regulators, and stakeholders during a period of significant digital transformation and on an ongoing basis. The role will champion secure-by-default/design principles, drive security best practices, and lead a high-performing team in the context of ambitious cloud adoption, agile delivery, and regulatory evolution. The role balances strategic vision with operational oversight, ensuring security resilience and enabling the firm's growth aspirations. What you'll be doing * Provide strategic leadership, direction and vision for all aspects of ...
The Head of Application and Product Security is a strategic leadership role responsible for safeguarding the application landscape and digital products within HL. This pivotal position ensures that security is embedded throughout the software development lifecycle and product innovation pipeline, providing assurance to clients, regulators, and stakeholders during a period of significant digital transformation and on an ongoing basis. The role will champion secure-by-default/design principles, drive security best practices, and lead a high-performing team in the context of ambitious cloud adoption, agile delivery, and regulatory evolution. The role balances strategic vision with operational oversight, ensuring security resilience and enabling the firm's growth aspirations. What you'll be doing * Provide strategic leadership, direction and vision for all aspects of ...
NEWFEATURED
Senior Software Engineer (Pensions, ISAs & Investments)
Senior Software Engineer (Pensions, ISAs & Investments)
Hargreaves Lansdown
BS1, Bristol
£65000 - £80000 per annum + Strong Bonus & Pension etc
Salary: Up to £80,000 dependent on experience - HL are looking for a talented full stack Senior Software Engineer to join our Pensions, ISAs & Investments product development team in building market leading solutions for our clients. This is an opportunity to join the UK's number one investment services company, looking after over £149.7bn billion in assets on behalf of more than 1.86 million UK investors. This is your chance to genuinely stamp your mark on one of the UK's most innovative and digital-focused businesses. What You'll Be Doing * Collaborate with cross-functional teams to deliver high-quality digital client journeys. * Design and develop AWS cloud-native applications with TypeScript and React and manage them using Infrastructure as Code. * Write high quality, secure, tested and performant code. * Create and maintain automated tests for new changes.
Salary: Up to £80,000 dependent on experience - HL are looking for a talented full stack Senior Software Engineer to join our Pensions, ISAs & Investments product development team in building market leading solutions for our clients. This is an opportunity to join the UK's number one investment services company, looking after over £149.7bn billion in assets on behalf of more than 1.86 million UK investors. This is your chance to genuinely stamp your mark on one of the UK's most innovative and digital-focused businesses. What You'll Be Doing * Collaborate with cross-functional teams to deliver high-quality digital client journeys. * Design and develop AWS cloud-native applications with TypeScript and React and manage them using Infrastructure as Code. * Write high quality, secure, tested and performant code. * Create and maintain automated tests for new changes.
NEWFEATURED
Strong integration, E2E and API testing experience
Strong integration, E2E and API testing experience
PREMIUM
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Passion for clean code, API design, and maintainable architecture - Senior Software Engineer, Robotics, C++, Python, ROS 2, DDS, CUDA, PyTorch, TensorRT, Real-Time Systems, Embedded Systems, Low Latency, CI/CD, API Design, Linux Kernel, Multithreading, GPU Optimisation, Robotics Engineer, Autonomous Systems, London Engineering Jobs, Robotics Startups, High Performance Computing
Passion for clean code, API design, and maintainable architecture - Senior Software Engineer, Robotics, C++, Python, ROS 2, DDS, CUDA, PyTorch, TensorRT, Real-Time Systems, Embedded Systems, Low Latency, CI/CD, API Design, Linux Kernel, Multithreading, GPU Optimisation, Robotics Engineer, Autonomous Systems, London Engineering Jobs, Robotics Startups, High Performance Computing
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9 exact matches jobs are outside your preferred location
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IT Jobs in Poland – Work Sponsorship / VISA Provided – Please apply if you are currently in Poland
IT Jobs in Poland – Work Sponsorship / VISA Provided – Please apply if you are currently in Poland
InfinityQuest Ltd,
Europe
Unspecified
IT Jobs in Poland With Work Sponsorship / VISA Hiring at Infinity Quest (Please apply if you are currently in Poland) Already living in Poland? We're hiring experienced tech professionals for global projects - full work permit provided. Only candidates based in Poland will be considered. 1. DevOps Engineer (AWS / Azure / GCP | CI/CD | Terraform / Ansible | Kubernetes) 2. Cloud Data Engineer (AWS (Redshift, Glue) / Azure (ADF, Synapse) / GCP (BigQuery, Dataflow) | Python | SQL | Spark | DBT) 3. Full Stack Engineer (React / Angular | Java / Python / Node.js | Cloud) 4. Java Backend Developer (Java | Spring Boot | Microservices | Cloud Platforms) 5. Data Engineer (Power BI / MSBI | Python | SQL | Snowflake) 6. Data Scientist / ML Engineer (Python | Pandas | TensorFlow / PyTorch | Data Modelling) 7. Golang Developer (Golang | REST APIs | Concurrency | Cloud-native develop
IT Jobs in Poland With Work Sponsorship / VISA Hiring at Infinity Quest (Please apply if you are currently in Poland) Already living in Poland? We're hiring experienced tech professionals for global projects - full work permit provided. Only candidates based in Poland will be considered. 1. DevOps Engineer (AWS / Azure / GCP | CI/CD | Terraform / Ansible | Kubernetes) 2. Cloud Data Engineer (AWS (Redshift, Glue) / Azure (ADF, Synapse) / GCP (BigQuery, Dataflow) | Python | SQL | Spark | DBT) 3. Full Stack Engineer (React / Angular | Java / Python / Node.js | Cloud) 4. Java Backend Developer (Java | Spring Boot | Microservices | Cloud Platforms) 5. Data Engineer (Power BI / MSBI | Python | SQL | Snowflake) 6. Data Scientist / ML Engineer (Python | Pandas | TensorFlow / PyTorch | Data Modelling) 7. Golang Developer (Golang | REST APIs | Concurrency | Cloud-native develop
Strong background in API development, cloud adoption frameworks, and modern architectures.
Strong background in API development, cloud adoption frameworks, and modern architectures.
NEW
Strong background in API development, cloud adoption frameworks, and modern architectures.
Strong background in API development, cloud adoption frameworks, and modern architectures.
NEW
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Location: Onsite (secure location, UK) Clearance: Developed Vetting (eDV) required - Employment Type: Permanent - Overview - We are seeking an experienced Fullstack Software Engineer with active eDV clearance to join a high-performing engineering team working on critical projects within the UK Defence and National Security sector. The successful candidate will be responsible for designing, developing, and maintaining secure, scalable, and high-quality software solutions across both front-end and back-end systems. Key Responsibilities * Design, develop, and maintain fullstack applications with a focus on performance, security, and reliability * Contribute to software architecture and technical decision-making in complex, secure environments * Implement and maintain APIs, databases, and user interfaces * Write clean, maintainable, and testable code following modern engi
Location: Onsite (secure location, UK) Clearance: Developed Vetting (eDV) required - Employment Type: Permanent - Overview - We are seeking an experienced Fullstack Software Engineer with active eDV clearance to join a high-performing engineering team working on critical projects within the UK Defence and National Security sector. The successful candidate will be responsible for designing, developing, and maintaining secure, scalable, and high-quality software solutions across both front-end and back-end systems. Key Responsibilities * Design, develop, and maintain fullstack applications with a focus on performance, security, and reliability * Contribute to software architecture and technical decision-making in complex, secure environments * Implement and maintain APIs, databases, and user interfaces * Write clean, maintainable, and testable code following modern engi
TypeScript | React | Go | Python | Mission-Driven Start-up - Weve partnered with a mission-driven, remote-first start-up thats transforming a global industry worth billions. Their platform is tackling long-standing inefficiencies, unlocking fairness, transparency, and faster payments for creators and rights-holders worldwide. Theyre looking for a Full Stack Software Engineer who wants to build technology that makes a real impact. You wont just write code - youll solve real-world problems that improve how people get paid and recognized. Youll build end-to-end features across UI, APIs, and infrastructure, helping the team deliver meaningful products. * Salary:Up to £100,000 (DOE) * Location:Fully remote (UK only) * Key Technologies:TypeScript, React, Next.js, Go or Python, AWS or GCP - Senior Software Engineer Requirements * 5+ years experience as a Software Engineer (F
TypeScript | React | Go | Python | Mission-Driven Start-up - Weve partnered with a mission-driven, remote-first start-up thats transforming a global industry worth billions. Their platform is tackling long-standing inefficiencies, unlocking fairness, transparency, and faster payments for creators and rights-holders worldwide. Theyre looking for a Full Stack Software Engineer who wants to build technology that makes a real impact. You wont just write code - youll solve real-world problems that improve how people get paid and recognized. Youll build end-to-end features across UI, APIs, and infrastructure, helping the team deliver meaningful products. * Salary:Up to £100,000 (DOE) * Location:Fully remote (UK only) * Key Technologies:TypeScript, React, Next.js, Go or Python, AWS or GCP - Senior Software Engineer Requirements * 5+ years experience as a Software Engineer (F
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Do you bring a breadth of technical expertise across reservation systems, Dynamics CRM, and API design? * Deep technical expertise across API design, integration layers, and data flow management.
Do you bring a breadth of technical expertise across reservation systems, Dynamics CRM, and API design? * Deep technical expertise across API design, integration layers, and data flow management.
NEWFEATURED
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UKIC Cleared Senior Front-end JavaScript Developer
UKIC Cleared Senior Front-end JavaScript Developer
Damia Group Ltd
UK
£40000 - £80000 per annum + and bonus
Familiarity with microservices architecture and API development (REST, GraphQL).
Familiarity with microservices architecture and API development (REST, GraphQL).
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API-centric architectures.
API-centric architectures.
Apply now - Date: 27 Aug 2025 - Location: London region, GB - 81357 - Power System & Product Development Engineer - This Power System & Product Development Engineer will report to the Network Access Manager and will work within DSO directorate based in our London office. You will be a permanent employee. You will attract a salary of £80,574.00 and a bonus of 3%. This role can also offer blended working after probationary period (6 months) - 3 days in the office and 2 remote - Close Date: 14/09/2025 - We also provide the following additional benefits * 25 Days Annual Leave plus bank holidays. * Reservist Leave - Additional 18 days full pay and 22 unpaid * Personal Pension Plan - Personal contribution rates of 4% or 5% (UK Power Networks will make a corresponding contribution of 8% or 10%) * Tenancy Loan Deposit Scheme, Season Ticket Loan
Apply now - Date: 27 Aug 2025 - Location: London region, GB - 81357 - Power System & Product Development Engineer - This Power System & Product Development Engineer will report to the Network Access Manager and will work within DSO directorate based in our London office. You will be a permanent employee. You will attract a salary of £80,574.00 and a bonus of 3%. This role can also offer blended working after probationary period (6 months) - 3 days in the office and 2 remote - Close Date: 14/09/2025 - We also provide the following additional benefits * 25 Days Annual Leave plus bank holidays. * Reservist Leave - Additional 18 days full pay and 22 unpaid * Personal Pension Plan - Personal contribution rates of 4% or 5% (UK Power Networks will make a corresponding contribution of 8% or 10%) * Tenancy Loan Deposit Scheme, Season Ticket Loan
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Enhanced SC Cleared Software Engineer / Data Integration - We're looking for a highly skilled Software Engineer / Data Integration Specialist to join a mission-critical programme, ensuring data and services move seamlessly, securely, and efficiently across systems. * Collaboration - Work closely with software engineers, DevOps, and product teams to translate integration requirements into effective solutions. This role blends backend software engineering with data integration expertise, offering the chance to work on high-impact projects within a collaborative, technically advanced environment. Bring your software engineering and data integration expertise to a role where your work will make a measurable impact on secure, data-driven systems. Bristol or London (2 days per week onsite)
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They are looking for a Senior Software Engineer with strong Python expertise to join a high-impact programme, developing solutions that address complex operational challenges. If you're a Python engineer ready to step into a senior role, this could be the right move for you. Our client is a specialist technology consultancy delivering bespoke software and data solutions to government, defence, and critical national infrastructure sectors. * Design, develop, and test high-quality software solutions. * Proven commercial experience with Python and modern cloud technologies (AWS experience is a strong advantage). This is an opportunity to join a forward-looking team delivering software th
They are looking for a Senior Software Engineer with strong Python expertise to join a high-impact programme, developing solutions that address complex operational challenges. If you're a Python engineer ready to step into a senior role, this could be the right move for you. Our client is a specialist technology consultancy delivering bespoke software and data solutions to government, defence, and critical national infrastructure sectors. * Design, develop, and test high-quality software solutions. * Proven commercial experience with Python and modern cloud technologies (AWS experience is a strong advantage). This is an opportunity to join a forward-looking team delivering software th
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C++ Software Engineer / Developer (SDK OEM) Cambridge / WFH to £75k - Are you a C++ Software Engineer looking for an opportunity to work on complex and interesting, cutting edge systems with client interaction? Apply now to find out more about this C++ Software Engineer / Developer opportunity. As a C++ Developer you will join the team responsible for the responsible for creating the client desktop software that forms a key part of the core remote access technology. You could be joining a market leading software house that's remote access product is used by hundreds of millions of users worldwide. You'll have exposure across the full development lifecycle from requirements analysis through to design, development and testing with a focus on backend C++ services and SDK
C++ Software Engineer / Developer (SDK OEM) Cambridge / WFH to £75k - Are you a C++ Software Engineer looking for an opportunity to work on complex and interesting, cutting edge systems with client interaction? Apply now to find out more about this C++ Software Engineer / Developer opportunity. As a C++ Developer you will join the team responsible for the responsible for creating the client desktop software that forms a key part of the core remote access technology. You could be joining a market leading software house that's remote access product is used by hundreds of millions of users worldwide. You'll have exposure across the full development lifecycle from requirements analysis through to design, development and testing with a focus on backend C++ services and SDK
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About this role - What are Aladdin and Aladdin Engineering? * You will be working on BlackRock's investment operating system called Aladdin. Aladdin is used both internally within BlackRock and externally by many financial institutions. Aladdin combines sophisticated risk analytics with comprehensive portfolio management, trading, and operations tools on a single platform to power informed decision-making and create a connective tissue for thousands of users investing worldwide. * Our development teams reside inside the Aladdin Engineering group. We collaboratively build the next generation of technology that changes the way information, people, and technology intersect for global investment firms. We build and package tools that manage trillions in assets and supports millions of financial instruments. We perform risk calculations and process millions of transactions
About this role - What are Aladdin and Aladdin Engineering? * You will be working on BlackRock's investment operating system called Aladdin. Aladdin is used both internally within BlackRock and externally by many financial institutions. Aladdin combines sophisticated risk analytics with comprehensive portfolio management, trading, and operations tools on a single platform to power informed decision-making and create a connective tissue for thousands of users investing worldwide. * Our development teams reside inside the Aladdin Engineering group. We collaboratively build the next generation of technology that changes the way information, people, and technology intersect for global investment firms. We build and package tools that manage trillions in assets and supports millions of financial instruments. We perform risk calculations and process millions of transactions
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Mid-Level C++ Developer (5+ years of experience) Are you an experienced C++ Developer looking for your next long-term contract? * Participate in code reviews and support junior developers where appropriate. Location:Hybrid - 2-3 days onsite in Hounslow - Rate:£430 per day (Inside IR35) Duration:12 months (Extension highly likely) We are seeking a technically strong and versatileMid-Level C++ Developerto join our client's high-performing team on a travel technology project. Key Responsibilities * Develop and maintain high-performance Back End components using C++11 or newer. * Design dynamic, responsive Front End interfaces with AngularJS/Angular 2+. * Support and enhance existing systems with a focus on performance, stability, and maintainability. * Collaborate with cross-functional teams (Product Owners, QA, DevOps,
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As a Software Engineer, you will help lead the development of backend platforms and services for National Security and Defence clients leveraging the latest commercial and open-source technologies in private and public cloud environments. * Collaborate closely with other engineers in our cross-functional feature teams; ensuring that others can cover for you, and that you can cover for them - Aker Systems was founded in 2017 by a team of experienced technology professionals who recognised an opportunity to provide highly secure enterprise data platforms to large organisations. We build and operate ground-breaking, ultra-secure, high performance, cloud-based data infrastructure for the enterprise. Our proprietary technology solutions drive performance and reduce costs while helping our clients to improv
As a Software Engineer, you will help lead the development of backend platforms and services for National Security and Defence clients leveraging the latest commercial and open-source technologies in private and public cloud environments. * Collaborate closely with other engineers in our cross-functional feature teams; ensuring that others can cover for you, and that you can cover for them - Aker Systems was founded in 2017 by a team of experienced technology professionals who recognised an opportunity to provide highly secure enterprise data platforms to large organisations. We build and operate ground-breaking, ultra-secure, high performance, cloud-based data infrastructure for the enterprise. Our proprietary technology solutions drive performance and reduce costs while helping our clients to improv
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Our client is seeking a talented and motivated Senior Software Engineer to lead the development of our next-generation observability platform. Are you a seasoned software engineer with a passion for designing and developing cloud-native Infrastructure-as-Code (IaC) solutions from the ground up? * Collaborate within a dynamic software engineering team to architect and build a new cloud-native IaC platform. * Develop software using technologies such as Docker Compose, Terraform, Kubernetes (K8s), Python, and Go. * A software developer experienced in designing and delivering complex IaC capabilities from scratch, not merely operating existing environments. * A background in developing cloud-native systems software within SaaS organisations. * Demonstrate
Our client is seeking a talented and motivated Senior Software Engineer to lead the development of our next-generation observability platform. Are you a seasoned software engineer with a passion for designing and developing cloud-native Infrastructure-as-Code (IaC) solutions from the ground up? * Collaborate within a dynamic software engineering team to architect and build a new cloud-native IaC platform. * Develop software using technologies such as Docker Compose, Terraform, Kubernetes (K8s), Python, and Go. * A software developer experienced in designing and delivering complex IaC capabilities from scratch, not merely operating existing environments. * A background in developing cloud-native systems software within SaaS organisations. * Demonstrate
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