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75 API jobs in Holborn, Central London + 20 miles
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PowerBI Developer
PowerBI Developer
Halian Technology Limited
W1, Central London
From £70,000 to £75,000 per annum Plus bonus and benefits
My client is an award-winning and market-leading insights and solutions provider across pensions and financial services, energy, health, and analytics. The Opportunity - We're looking for an experienced and innovativePower Platform Developerto join my clients growing team. Youll play a key role in designing, developing, and supporting scalable, user-friendly business applications, automation workflows, and analytics solutions using Microsoft Power Platform. This is a fantastic opportunity to work across a diverse range of business areas, collaborating closely with stakeholders to drive digital transformation and operational efficiency. Key Responsibilities * Design, build, and maintain custom business applications usingPower Apps * Develop and enhance workflows and automations withPower Automate * Create interactive dashboards and data visualisations usingPower BI
My client is an award-winning and market-leading insights and solutions provider across pensions and financial services, energy, health, and analytics. The Opportunity - We're looking for an experienced and innovativePower Platform Developerto join my clients growing team. Youll play a key role in designing, developing, and supporting scalable, user-friendly business applications, automation workflows, and analytics solutions using Microsoft Power Platform. This is a fantastic opportunity to work across a diverse range of business areas, collaborating closely with stakeholders to drive digital transformation and operational efficiency. Key Responsibilities * Design, build, and maintain custom business applications usingPower Apps * Develop and enhance workflows and automations withPower Automate * Create interactive dashboards and data visualisations usingPower BI
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Company Description - At The Stepstone Group, we have a simple yet very important mission: The right job for everyone. Using our data, platform, and technology, we create opportunities for jobseekers and companies around the world to find a perfect match in fair and equitable way. With over 20 brands across 30+ countries, we strive for fair and unbiased hiring. Join our team of 4,000+ employees and be part of reshaping the labour market and becoming the worlds leading job platform. Job Description - Join our team and youll be responsible for providing technical leadership to all engineering and development areas across your domain, developing and executing an engineering strategy aligned to the portfolio and global tech strategies. Working in the Design and Platform Performance domain, you willlead the technology side of web and mobile analytics for a platform with ov
Company Description - At The Stepstone Group, we have a simple yet very important mission: The right job for everyone. Using our data, platform, and technology, we create opportunities for jobseekers and companies around the world to find a perfect match in fair and equitable way. With over 20 brands across 30+ countries, we strive for fair and unbiased hiring. Join our team of 4,000+ employees and be part of reshaping the labour market and becoming the worlds leading job platform. Job Description - Join our team and youll be responsible for providing technical leadership to all engineering and development areas across your domain, developing and executing an engineering strategy aligned to the portfolio and global tech strategies. Working in the Design and Platform Performance domain, you willlead the technology side of web and mobile analytics for a platform with ov
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Liberty Wines is modernising its data estate: migrating from on-prem Analysis Services to the cloud, moving our WMS, ERP and bespoke apps to scalable platforms, and expanding AI/ML initiatives. We are evaluating both Fabric and Databricks as a potential strategic fit. As our hands-on Data & Analytics Engineer, youll play a key role in shaping and influencing that decision, helping assess the best platform for our needs based on your experience and contributing to successful delivery on either. You will work end-to-end, from schema design to dashboard storytelling, and be the pivotal data voice in the Technology team. This role offers broad ownership across tooling, standards, engineering and enablement rather than being confined to a narrow BI silo. Key Responsibilities - Data Platform Build-out * Design relational & Lakehouse schemas in Fabric or Databricks
Liberty Wines is modernising its data estate: migrating from on-prem Analysis Services to the cloud, moving our WMS, ERP and bespoke apps to scalable platforms, and expanding AI/ML initiatives. We are evaluating both Fabric and Databricks as a potential strategic fit. As our hands-on Data & Analytics Engineer, youll play a key role in shaping and influencing that decision, helping assess the best platform for our needs based on your experience and contributing to successful delivery on either. You will work end-to-end, from schema design to dashboard storytelling, and be the pivotal data voice in the Technology team. This role offers broad ownership across tooling, standards, engineering and enablement rather than being confined to a narrow BI silo. Key Responsibilities - Data Platform Build-out * Design relational & Lakehouse schemas in Fabric or Databricks
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Full Stack Developer Node.Js / React
Full Stack Developer Node.Js / React
Halian Technology Limited
W1, Central London
From £60,000 to £65,000 per annum Plus bonus and benefits
My client specialises in digital payments across the UK and Europe. Their platform enables seamless real-time transactions for consumers and businesses, with a focus on security, scalability, and user experience. Backed by top-tier investors and used by thousands daily, were scaling up and looking for passionate engineers to help us build the future of payments. We are seeking a talented and driven Mid-Level Full Stack Engineer with strong skills in Node.js, React, and AWS cloud infrastructure. Youll play a key role in designing, developing, and maintaining scalable microservices and user interfaces for our core payments platform. Youll work in a cross-functional agile team alongside product managers, designers, and fellow engineers to deliver features that directly impact our customers and partners. * Develop backend microservices using Node.js (Express/Nest.js prefe
My client specialises in digital payments across the UK and Europe. Their platform enables seamless real-time transactions for consumers and businesses, with a focus on security, scalability, and user experience. Backed by top-tier investors and used by thousands daily, were scaling up and looking for passionate engineers to help us build the future of payments. We are seeking a talented and driven Mid-Level Full Stack Engineer with strong skills in Node.js, React, and AWS cloud infrastructure. Youll play a key role in designing, developing, and maintaining scalable microservices and user interfaces for our core payments platform. Youll work in a cross-functional agile team alongside product managers, designers, and fellow engineers to deliver features that directly impact our customers and partners. * Develop backend microservices using Node.js (Express/Nest.js prefe
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Job Role: Senior Full-Stack PHP Developer - Working Hours: 5 days per week - Job Type: Permanent - Salary: £70,000 - £85,000 depending on experience - Location: London - Remote: 4 days remote - 1 day on-site in London office - Postcode NW6 - About the Company - Our client is a rapidly growing platform that connects individuals with industry professionals for special events. By offering unique opportunities, the platform allows professionals in the field to achieve higher earnings while enjoying enhanced flexibility and a better work-life balance. Role Overview - This is an exciting opportunity to join a high-growth, early-stage startup. As a Full-Stack Developer, youll work closely with the founders and engineers in a tight-knit, London-based team. Youll have a direct impact on the companys expansion into new international markets, shaping the future of the business.
Job Role: Senior Full-Stack PHP Developer - Working Hours: 5 days per week - Job Type: Permanent - Salary: £70,000 - £85,000 depending on experience - Location: London - Remote: 4 days remote - 1 day on-site in London office - Postcode NW6 - About the Company - Our client is a rapidly growing platform that connects individuals with industry professionals for special events. By offering unique opportunities, the platform allows professionals in the field to achieve higher earnings while enjoying enhanced flexibility and a better work-life balance. Role Overview - This is an exciting opportunity to join a high-growth, early-stage startup. As a Full-Stack Developer, youll work closely with the founders and engineers in a tight-knit, London-based team. Youll have a direct impact on the companys expansion into new international markets, shaping the future of the business.
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6-month contract - Outside IR35 - £475 per day - Hybrid - 2 days a week in the London Office - We are seeking a highly capable, hands-on .NET Contractor to deliver high-quality solutions at pace. You will work with a modern .NET codebase (≥ .NET 8.0), occasionally interpreting Java to support .NET implementations. This role suits someone who is delivery-focused, practical, and confident working across platforms. Key Responsibilities * Deliver clean, maintainable, and testable C#/.NET code to a high standard. * Quickly turn around features and tasks without compromising quality. * Interpret existing Java code where required. * Collaborate with SMEs and the Engineering Lead to align with scope and priorities. * Own tasks end-to-end, from requirements to production release, with minimal supervision. Skills & Experience * Strong commercial experience with C# and .NET (Cor
6-month contract - Outside IR35 - £475 per day - Hybrid - 2 days a week in the London Office - We are seeking a highly capable, hands-on .NET Contractor to deliver high-quality solutions at pace. You will work with a modern .NET codebase (≥ .NET 8.0), occasionally interpreting Java to support .NET implementations. This role suits someone who is delivery-focused, practical, and confident working across platforms. Key Responsibilities * Deliver clean, maintainable, and testable C#/.NET code to a high standard. * Quickly turn around features and tasks without compromising quality. * Interpret existing Java code where required. * Collaborate with SMEs and the Engineering Lead to align with scope and priorities. * Own tasks end-to-end, from requirements to production release, with minimal supervision. Skills & Experience * Strong commercial experience with C# and .NET (Cor
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Permanent - Location: UK - Remote - Salary: £70,000 - £80,000 (+ benefits) Skills: Team Management, Python, Java, CI/CD, BDD (Cucumber), Energy / Financial Trading experience (desirable) We're recruiting a Lead Automation Tester for a leading software company that develops advanced solutions for trading and risk management across global financial and energy markets. This is a fantastic opportunity for an experienced Automation Engineer with proven team leadership or management experience to take ownership of automation practices and guide a small, skilled team. You'll play a key role in driving an automation-first culture, ensuring quality and scalability across complex, high-volume systems. This is a UK based fully remote role. What you'll bring * Programming & Scripting: Python, Java, JavaScript, C++, Scriban * Web Technologies: RESTful APIs, HTTP, JSON, HTML, CSS,
Permanent - Location: UK - Remote - Salary: £70,000 - £80,000 (+ benefits) Skills: Team Management, Python, Java, CI/CD, BDD (Cucumber), Energy / Financial Trading experience (desirable) We're recruiting a Lead Automation Tester for a leading software company that develops advanced solutions for trading and risk management across global financial and energy markets. This is a fantastic opportunity for an experienced Automation Engineer with proven team leadership or management experience to take ownership of automation practices and guide a small, skilled team. You'll play a key role in driving an automation-first culture, ensuring quality and scalability across complex, high-volume systems. This is a UK based fully remote role. What you'll bring * Programming & Scripting: Python, Java, JavaScript, C++, Scriban * Web Technologies: RESTful APIs, HTTP, JSON, HTML, CSS,
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SuiteCRM Developer - Remote - Inside IR35
SuiteCRM Developer - Remote - Inside IR35
The Bridge (IT Recruitment) Limited
Greenwich, SE10 0AA
£430 - 450 per day
This is a fantastic opportunity to work as a contract SuiteCRM Developer on a remote contract, inside IR35. This SuiteCRM Developer will be asked to deliver customisation, integration, and ongoing support for their CRM platform. * SuiteCRM or SugarCRM * PHP * CRM databases * Git * APIs If you do have the relevant experience for this contract SuiteCRM Developer position, please do apply.
This is a fantastic opportunity to work as a contract SuiteCRM Developer on a remote contract, inside IR35. This SuiteCRM Developer will be asked to deliver customisation, integration, and ongoing support for their CRM platform. * SuiteCRM or SugarCRM * PHP * CRM databases * Git * APIs If you do have the relevant experience for this contract SuiteCRM Developer position, please do apply.
Automation Tester - Permanent - Location: UK - Remote - Salary: £55,000 - £65,000 (+ benefits) Skills: Python, Java, CI/CD, BDD (Cucumber), Energy / Financial Trading experience (desirable) We are looking to recruit an Automation Tester for a leading software company that delivers advanced solutions for trading and risk management across global financial and energy markets. This is a UK based fully remote role. What you'll bring * Programming & Scripting: Python, Java, JavaScript, C++, Scriban * Web Technologies: RESTful APIs, HTTP, JSON, HTML, CSS, Node.js * Databases: SQL Server, MySQL, PostgreSQL, MongoDB * Tools & Frameworks: Git, Docker, Jenkins, Kubernetes, Agile (Scrum & Kanban), JIRA, Pytest, Powershell * Operating Systems: Linux, Windows * CI/CD pipelines and debugging expertise * BDD frameworks such as Cucumber * Strong problem-solving mindset and collaborat
Automation Tester - Permanent - Location: UK - Remote - Salary: £55,000 - £65,000 (+ benefits) Skills: Python, Java, CI/CD, BDD (Cucumber), Energy / Financial Trading experience (desirable) We are looking to recruit an Automation Tester for a leading software company that delivers advanced solutions for trading and risk management across global financial and energy markets. This is a UK based fully remote role. What you'll bring * Programming & Scripting: Python, Java, JavaScript, C++, Scriban * Web Technologies: RESTful APIs, HTTP, JSON, HTML, CSS, Node.js * Databases: SQL Server, MySQL, PostgreSQL, MongoDB * Tools & Frameworks: Git, Docker, Jenkins, Kubernetes, Agile (Scrum & Kanban), JIRA, Pytest, Powershell * Operating Systems: Linux, Windows * CI/CD pipelines and debugging expertise * BDD frameworks such as Cucumber * Strong problem-solving mindset and collaborat
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We are seeking a skilled and motivated Data Engineer II to join our technology organization. In this role, you will play a key part in modernizing our data platforms, designing and building scalable pipelines, and enabling data-driven decision-making across the business. This is an opportunity to contribute to mission-critical projects with high visibility and impact. * Design, develop, and maintain robust, high-performance data pipelines and APIs. * Implement modern data platform capabilities using SQL, dbt, and Azure technologies. * Build and optimize ETL processes and ensure data quality standards are met. * Define and document cloud solution architectures, technical designs, and testing. * Collaborate with engineering, data science, and business teams to support strategic initiatives. * Troubleshoot and resolve data management issues, while driving continuous impr
We are seeking a skilled and motivated Data Engineer II to join our technology organization. In this role, you will play a key part in modernizing our data platforms, designing and building scalable pipelines, and enabling data-driven decision-making across the business. This is an opportunity to contribute to mission-critical projects with high visibility and impact. * Design, develop, and maintain robust, high-performance data pipelines and APIs. * Implement modern data platform capabilities using SQL, dbt, and Azure technologies. * Build and optimize ETL processes and ensure data quality standards are met. * Define and document cloud solution architectures, technical designs, and testing. * Collaborate with engineering, data science, and business teams to support strategic initiatives. * Troubleshoot and resolve data management issues, while driving continuous impr
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Data Strategy Lead Reinsurance City of London
Data Strategy Lead Reinsurance City of London
IPS Group
City of London, London
£120,000-£150,000 per annum plus benefits
Location: City of London, Hybrid - Salary: £120,000-£150,000 - Industry: Insurance/Reinsurance - Tenure: Permanent - Our Client - An international financial services organisation is looking for a hands-on data leader to shape and drive its data strategy across multiple global regions. The role is based in London and will focus on strengthening adoption of enterprise-wide data platforms, improving analytics capability, and unlocking value from diverse and complex datasets. This position will support a wide variety of business areas and requires close collaboration with colleagues across the UK, Europe, Asia Pacific, Latin America, the Middle East, and Africa. Key Responsibilities * Provide leadership and direction to embedded data specialists, helping them deliver solutions aligned to business needs. * Lead the rollout and ongoing enhancement of core data products and
Location: City of London, Hybrid - Salary: £120,000-£150,000 - Industry: Insurance/Reinsurance - Tenure: Permanent - Our Client - An international financial services organisation is looking for a hands-on data leader to shape and drive its data strategy across multiple global regions. The role is based in London and will focus on strengthening adoption of enterprise-wide data platforms, improving analytics capability, and unlocking value from diverse and complex datasets. This position will support a wide variety of business areas and requires close collaboration with colleagues across the UK, Europe, Asia Pacific, Latin America, the Middle East, and Africa. Key Responsibilities * Provide leadership and direction to embedded data specialists, helping them deliver solutions aligned to business needs. * Lead the rollout and ongoing enhancement of core data products and
Fully Remote - UK - 3 Month Contract - Rate: £450 - £500 per day (Inside IR35) We are looking to recruit a Senior Front End Developer for a global software organisation on an initial 3 month contract. This is an excellent opportunity to work hands-on with modern frontend technologies, shape the user experience, and mentor junior developers. * Hands-on development of new functionality, building the frontend and integrating with APIs. * Modify and modernise existing functionality to improve performance and usability. * Apply best practices to deliver high-quality, secure, and performant solutions. * Build reusable components and collaborate closely with teams across the business. * Work with product managers, UX/UI designers, and stakeholders to gather requirements and propose effective solutions. * Provide accurate estimates for work items and contribute to project pla
Fully Remote - UK - 3 Month Contract - Rate: £450 - £500 per day (Inside IR35) We are looking to recruit a Senior Front End Developer for a global software organisation on an initial 3 month contract. This is an excellent opportunity to work hands-on with modern frontend technologies, shape the user experience, and mentor junior developers. * Hands-on development of new functionality, building the frontend and integrating with APIs. * Modify and modernise existing functionality to improve performance and usability. * Apply best practices to deliver high-quality, secure, and performant solutions. * Build reusable components and collaborate closely with teams across the business. * Work with product managers, UX/UI designers, and stakeholders to gather requirements and propose effective solutions. * Provide accurate estimates for work items and contribute to project pla
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5+ years experience in working with the .NET framework, particularly with ASP.NET Core, React/React Native, C#, Web API Experience developing REST API-driven mobile first web applications
5+ years experience in working with the .NET framework, particularly with ASP.NET Core, React/React Native, C#, Web API Experience developing REST API-driven mobile first web applications
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Experience in developing and deploying Cloud Native Applications using Azure PaaS Capabilities (App Services Plans, Key Vault, SQL Azure DB, AzureFunctions, Containers, AKS, Logic Apps, Service Bus, Event Grid, API Management) * Enterprise Integration Technologies such as Azure API Management, Logic Apps, Service Bus.
Experience in developing and deploying Cloud Native Applications using Azure PaaS Capabilities (App Services Plans, Key Vault, SQL Azure DB, AzureFunctions, Containers, AKS, Logic Apps, Service Bus, Event Grid, API Management) * Enterprise Integration Technologies such as Azure API Management, Logic Apps, Service Bus.
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Backend Software Engineer C# .Net - Asset Management
Backend Software Engineer C# .Net - Asset Management
Client Server
The City, EC4
£100000 - £150000 per annum + bonus + benefits
There's a focus on backend and API development although you'll also have elements of front end work with JavaScript and React.js.
There's a focus on backend and API development although you'll also have elements of front end work with JavaScript and React.js.
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Familiarity with API testing
Familiarity with API testing
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Implement schema registries, data contracts, and API-first data governance.
Implement schema registries, data contracts, and API-first data governance.
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Senior Security Engineer Defender PurView Sentinel
Senior Security Engineer Defender PurView Sentinel
Invitise Ltd
EC1A, City of London
Up to £500 per day Outside IR35
PowerShell scripting and use of Microsoft Graph API
PowerShell scripting and use of Microsoft Graph API
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Senior Security Engineer (PurView, Sentinel, Defender)
Senior Security Engineer (PurView, Sentinel, Defender)
Invitise Ltd
WC1A, Central London
Up to £70,000 per annum + Excellent Benefits
PowerShell scripting and use of Microsoft Graph API
PowerShell scripting and use of Microsoft Graph API
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Strong knowledge of Django (or similar) and API design
Strong knowledge of Django (or similar) and API design
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Experience of deploying into and using AWS services including VPC, EC2, RDS, API Gateway
Experience of deploying into and using AWS services including VPC, EC2, RDS, API Gateway
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Proficiency with Git workflows, LAMP stack, and REST API integrations.
Proficiency with Git workflows, LAMP stack, and REST API integrations.
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We are looking for an ambitious, warm and inquisitive individual to join our Development team as a Quadient Inspire Developer for variable omni-channel communications. You will be reporting directly to the Head of Development. Ability to install/setup/maintain and develop Inspire Interactive. 1. Advanced in Inspire Designer - 2. Advanced in Inspire Designer Scripting - 3. Highly knowledgeable in Inspire Interactive - 4. Advanced in Inspire Scaler or Inspire Automation ( Scaler preferable but plenty of crossover and transferable skills from automation) 5. Able to create and setup new tenants / companies in Interactive - 6. Confident in creating and managing base templates within Interactive - 7. Confident in creating and managing templates within Interactive - 8. Confident in managing approval processes (an Interactive approval process) including adding basic forms to
We are looking for an ambitious, warm and inquisitive individual to join our Development team as a Quadient Inspire Developer for variable omni-channel communications. You will be reporting directly to the Head of Development. Ability to install/setup/maintain and develop Inspire Interactive. 1. Advanced in Inspire Designer - 2. Advanced in Inspire Designer Scripting - 3. Highly knowledgeable in Inspire Interactive - 4. Advanced in Inspire Scaler or Inspire Automation ( Scaler preferable but plenty of crossover and transferable skills from automation) 5. Able to create and setup new tenants / companies in Interactive - 6. Confident in creating and managing base templates within Interactive - 7. Confident in creating and managing templates within Interactive - 8. Confident in managing approval processes (an Interactive approval process) including adding basic forms to
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Web Integration Analyst
Web Integration Analyst
BENEFACT GROUP PLC T/A ECCLESIASTICAL INSURANCE GROUP PLC
South Ockendon, Essex
£30,000 - £35,000 a year
Salary: £30,000.00 - £35,000.00 (depending on experience) Working hours: 35 hours per week - Duration: Permanent Location: South Ockendon - About the role - Lloyd & Whyte , who are proudly part of Benefact Group , are looking for a Web Integration Analyst to join our Technical Operations team in their South Ockendon office. As a Web Integration Analyst you will be responsible for create, support and maintain group web development and integrations ensuring they are accessible, compliant, up to date and that issues are resolved in an acceptable time frame. Why join us? Join a collaborative and inclusive culture thats committed to making a difference and building a more sustainable future. Ranked amongst the UK's top 50 Best Large Companies to Work For in 2024, we offer fantastic career and development opportunities within a rapidly growing, innovative Groupwhere all pro
Salary: £30,000.00 - £35,000.00 (depending on experience) Working hours: 35 hours per week - Duration: Permanent Location: South Ockendon - About the role - Lloyd & Whyte , who are proudly part of Benefact Group , are looking for a Web Integration Analyst to join our Technical Operations team in their South Ockendon office. As a Web Integration Analyst you will be responsible for create, support and maintain group web development and integrations ensuring they are accessible, compliant, up to date and that issues are resolved in an acceptable time frame. Why join us? Join a collaborative and inclusive culture thats committed to making a difference and building a more sustainable future. Ranked amongst the UK's top 50 Best Large Companies to Work For in 2024, we offer fantastic career and development opportunities within a rapidly growing, innovative Groupwhere all pro
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Introduction - Join our growing team of dedicated professionals at Gallagher Bassett, who guide those in need to the best possible outcomes for their health and wellbeing. You'll be part of a resilient team that works together to redefine the boundaries of excellence. At our organization, we value collaboration and making a positive impact in the lives of our clients and claimants, offering you the opportunity to join a team where your skills and dedication can truly make a difference. We believe that every candidate brings something special to the table, including you! So, even if you feel that youre close but not an exact match, we encourage you to apply. Overview - We are looking for a Software Developer to join our team and contribute to the design, development, and maintenance of software systems that support key business operations.
Introduction - Join our growing team of dedicated professionals at Gallagher Bassett, who guide those in need to the best possible outcomes for their health and wellbeing. You'll be part of a resilient team that works together to redefine the boundaries of excellence. At our organization, we value collaboration and making a positive impact in the lives of our clients and claimants, offering you the opportunity to join a team where your skills and dedication can truly make a difference. We believe that every candidate brings something special to the table, including you! So, even if you feel that youre close but not an exact match, we encourage you to apply. Overview - We are looking for a Software Developer to join our team and contribute to the design, development, and maintenance of software systems that support key business operations.