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Locations
Locations
Salaries
Date posted
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93 Permanent API jobs in Holborn, Central London + 20 miles
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Senior Full Stack Engineer
Senior Full Stack Engineer
REVYBE IT RECRUITMENT LIMITED
EC1, City of London
From £100,000 to £120,000 per annum + Shares
London AI Start-up - Up to £120,000 + Shares + Private Healthcare + Pension - Were working with a well-funded AI start-up in London thats gearing up for huge growth. Theyre expecting to scale 10x over the next 18 months. Theyre now looking for a Senior Full-Stack Engineer to help design and build the next generation of their AI-driven platform. Reporting directly into the CTO and collaborating closely with product and research teams, this is a unique chance to take ownership across the stack and make a lasting impact in a company at the forefront of applied AI. The role - This isnt your standard engineering role youll be working end-to-end across frontend, backend, and cloud infrastructure. Youll build sleek, scalable applications with React and Next.js, design and maintain robust APIs with Node.js and Python, and architect solutions deployed on AWS or GCP.
London AI Start-up - Up to £120,000 + Shares + Private Healthcare + Pension - Were working with a well-funded AI start-up in London thats gearing up for huge growth. Theyre expecting to scale 10x over the next 18 months. Theyre now looking for a Senior Full-Stack Engineer to help design and build the next generation of their AI-driven platform. Reporting directly into the CTO and collaborating closely with product and research teams, this is a unique chance to take ownership across the stack and make a lasting impact in a company at the forefront of applied AI. The role - This isnt your standard engineering role youll be working end-to-end across frontend, backend, and cloud infrastructure. Youll build sleek, scalable applications with React and Next.js, design and maintain robust APIs with Node.js and Python, and architect solutions deployed on AWS or GCP.
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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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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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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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AWS DevOps Engineer, contract, remote (outside IR35)
AWS DevOps Engineer, contract, remote (outside IR35)
Staffworx Limited
EC1A, City of London
market rates, outside IR35, initial, likely long term extensions
AWS DevOps specialism (Lambda, API Gateway, Route 53, WAF, Shield, IAM, Cognito) * AWS API Gateway
AWS DevOps specialism (Lambda, API Gateway, Route 53, WAF, Shield, IAM, Cognito) * AWS API Gateway
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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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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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Strong knowledge of Django (or similar) and API design
Strong knowledge of Django (or similar) and API design
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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 process hundreds of API requests per second from operators and respond back with latency in milliseconds.
We process hundreds of API requests per second from operators and respond back with latency in milliseconds.
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.
Over the past 25 years, With Intelligence has evolved from a traditional financial publisher into a dynamic, product-led fintech company. Our mission is to empower investors and managers worldwide by connecting them to the people and data they need to raise and allocate assets efficiently. We have recently secured a new round of funding from a prominent technology investor. This investment will drive our committed plan to elevate our product into a pioneering, market-leading platform. We are rapidly expanding our focus on data, both internally and within our products and services. We are now looking for more help in this area to keep up with the growing demands of a dynamic, data driven organisation. We need someone that wants to get stuck in and do stuff! The role requires knowledge and understanding of some data and technical concepts and tools, but we do not expect
Over the past 25 years, With Intelligence has evolved from a traditional financial publisher into a dynamic, product-led fintech company. Our mission is to empower investors and managers worldwide by connecting them to the people and data they need to raise and allocate assets efficiently. We have recently secured a new round of funding from a prominent technology investor. This investment will drive our committed plan to elevate our product into a pioneering, market-leading platform. We are rapidly expanding our focus on data, both internally and within our products and services. We are now looking for more help in this area to keep up with the growing demands of a dynamic, data driven organisation. We need someone that wants to get stuck in and do stuff! The role requires knowledge and understanding of some data and technical concepts and tools, but we do not expect
API Integration: Build and integrate secure RESTful APIs to ensure seamless communication between systems.
API Integration: Build and integrate secure RESTful APIs to ensure seamless communication between systems.
398 exact matches jobs are outside your preferred location
QA Test Engineer Python API Automation
QA Test Engineer Python API Automation
Client Server
Milton, CB24
£40000 - £50000 per annum + bonus + benefits
You have API testing experience - Apply now to find out more about this QA Test Engineer (Python API Automation) opportunity.
You have API testing experience - Apply now to find out more about this QA Test Engineer (Python API Automation) opportunity.
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React Front End Engineer (TypeScript, API's, some C#/Angular)
React Front End Engineer (TypeScript, API's, some C#/Angular)
Hays
RH6, Gatwick
£45000.0 - £60000.0 per annum + £45-60k + Package
Front End React Engineer (TypeScript, API's, some C#/Angular) We're looking for a minimum of 3+ years commercial experience working hands-on with React/TypeScript integrating API's into their Front End estate.
Front End React Engineer (TypeScript, API's, some C#/Angular) We're looking for a minimum of 3+ years commercial experience working hands-on with React/TypeScript integrating API's into their Front End estate.
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On Monday morning, you might be refining an API connection between a collections database and a public-facing platform. You’ll work on varied and meaningful projects; from API-driven integrations to AI experimentation - helping to shape a modern, secure, and scalable technology environment. If you’ve worked in backend development, software engineering, or API management — and you’re confident with modern PHP and Linux — we’d love to hear from you.
On Monday morning, you might be refining an API connection between a collections database and a public-facing platform. You’ll work on varied and meaningful projects; from API-driven integrations to AI experimentation - helping to shape a modern, secure, and scalable technology environment. If you’ve worked in backend development, software engineering, or API management — and you’re confident with modern PHP and Linux — we’d love to hear from you.
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On Monday morning, you might be refining an API connection between a collections database and a public-facing platform. You’ll work on varied and meaningful projects; from API-driven integrations to AI experimentation - helping to shape a modern, secure, and scalable technology environment. If you’ve worked in backend development, software engineering, or API management — and you’re confident with modern PHP and Linux — we’d love to hear from you.
On Monday morning, you might be refining an API connection between a collections database and a public-facing platform. You’ll work on varied and meaningful projects; from API-driven integrations to AI experimentation - helping to shape a modern, secure, and scalable technology environment. If you’ve worked in backend development, software engineering, or API management — and you’re confident with modern PHP and Linux — we’d love to hear from you.
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We are AMS. We are a global total workforce solutions firm; we enable organisations to thrive in an age of constant change by building, re-shaping, and optimising workforces. Our Contingent Workforce Solutions (CWS) is one of our service offerings; we act as an extension of our clients' recruitment team and provide professional interim and temporary resources. Our client, a major UK retail bank, provides every day banking services to over 17 million retail customers. The banks expertise and services span across Business Services, Corporate banking, Wealth Management, Group Functions, Retail and Investment Banking. On behalf of this organisation, AMS are looking for a Software Engineer (AI Prompts) for a 6 month contract based in either the bank's London or Edinburgh office on a remote first working model.
We are AMS. We are a global total workforce solutions firm; we enable organisations to thrive in an age of constant change by building, re-shaping, and optimising workforces. Our Contingent Workforce Solutions (CWS) is one of our service offerings; we act as an extension of our clients' recruitment team and provide professional interim and temporary resources. Our client, a major UK retail bank, provides every day banking services to over 17 million retail customers. The banks expertise and services span across Business Services, Corporate banking, Wealth Management, Group Functions, Retail and Investment Banking. On behalf of this organisation, AMS are looking for a Software Engineer (AI Prompts) for a 6 month contract based in either the bank's London or Edinburgh office on a remote first working model.
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D365 Senior Developer - D365 Finance, APIS, Azure
D365 Senior Developer - D365 Finance, APIS, Azure
Hays
London
£500.0 - £515.0 per day + up to £515 pd (InsideIR35)
Up to £515 per day (Inside IR35) Remote / must be UK based - 12 months - We're looking for an experienced D365 Finance & Operations Developer to lead the development of custom journal processing extensions. This role suits someone with strong X++ skills and a deep understanding of D365 Finance, especially in high-volume, cross-functional environments. * Experience in D365 F&O development (X++, data entities, extensions). * Experience with general ledger, journals, financial dimensions, and intercompany transactions. * Strong knowledge of Visual Studio, LCS, Azure DevOps, and CI/CD pipelines. * Proficient in Power BI: report creation, configuration, and export. * Skilled in workflows, security roles, SSRS, and unit testing (SysTest). * Familiar with DMF, OData, batch processing, and error handling. * Ability to optimize performance for high-volume transactions.
Up to £515 per day (Inside IR35) Remote / must be UK based - 12 months - We're looking for an experienced D365 Finance & Operations Developer to lead the development of custom journal processing extensions. This role suits someone with strong X++ skills and a deep understanding of D365 Finance, especially in high-volume, cross-functional environments. * Experience in D365 F&O development (X++, data entities, extensions). * Experience with general ledger, journals, financial dimensions, and intercompany transactions. * Strong knowledge of Visual Studio, LCS, Azure DevOps, and CI/CD pipelines. * Proficient in Power BI: report creation, configuration, and export. * Skilled in workflows, security roles, SSRS, and unit testing (SysTest). * Familiar with DMF, OData, batch processing, and error handling. * Ability to optimize performance for high-volume transactions.
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D365 Senior Developer - D365 Finance, APIS, Azure
D365 Senior Developer - D365 Finance, APIS, Azure
Hays
London
£500.0 - £515.0 per day + up to £515 pd (InsideIR35)
Up to £515 per day (Inside IR35) Remote / must be UK based - 12 months - We're looking for an experienced D365 Finance & Operations Developer to lead the development of custom journal processing extensions. This role suits someone with strong X++ skills and a deep understanding of D365 Finance, especially in high-volume, cross-functional environments. * 5+ years in D365 F&O development (X++, data entities, extensions). * Experience with general ledger, journals, financial dimensions, and intercompany transactions. * Strong knowledge of Visual Studio, LCS, Azure DevOps, and CI/CD pipelines. * Proficient in Power BI: report creation, configuration, and export. * Skilled in workflows, security roles, SSRS, and unit testing (SysTest). * Familiar with DMF, OData, batch processing, and error handling. * Ability to optimize performance for high-volume transactions.
Up to £515 per day (Inside IR35) Remote / must be UK based - 12 months - We're looking for an experienced D365 Finance & Operations Developer to lead the development of custom journal processing extensions. This role suits someone with strong X++ skills and a deep understanding of D365 Finance, especially in high-volume, cross-functional environments. * 5+ years in D365 F&O development (X++, data entities, extensions). * Experience with general ledger, journals, financial dimensions, and intercompany transactions. * Strong knowledge of Visual Studio, LCS, Azure DevOps, and CI/CD pipelines. * Proficient in Power BI: report creation, configuration, and export. * Skilled in workflows, security roles, SSRS, and unit testing (SysTest). * Familiar with DMF, OData, batch processing, and error handling. * Ability to optimize performance for high-volume transactions.
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