Date posted
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Job types
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Locations
Locations
Salaries
Date posted
Type of Company
Job types
250 exact matches jobs are outside your preferred location
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Collaborate with the Product team to understand the business requirements, and formulate design documentation, both high enterprise-level and low API levels
Collaborate with the Product team to understand the business requirements, and formulate design documentation, both high enterprise-level and low API levels
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.NET Framework Version 4.5 or above including strong WCF\ Web API experience
.NET Framework Version 4.5 or above including strong WCF\ Web API experience
NEW
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.NET Framework Version 4.5 or above including strong WCF\ Web API experience
.NET Framework Version 4.5 or above including strong WCF\ Web API experience
NEW
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Experience with API development and Git.
Experience with API development and Git.
The candidate will hold specialization in designing web applications, middleware/API layer and AWS.
The candidate will hold specialization in designing web applications, middleware/API layer and AWS.
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About the company: Join a high-growth fintech startup in King's Cross as their Founding Engineer, working directly with the founders to build a Payments Platform API platform from the ground up. * Ambitious technologist who is passionate about building market leading Payments API Platforms
About the company: Join a high-growth fintech startup in King's Cross as their Founding Engineer, working directly with the founders to build a Payments Platform API platform from the ground up. * Ambitious technologist who is passionate about building market leading Payments API Platforms
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About the company: Join a high-growth fintech startup in King's Cross as their Founding Engineer, working directly with the founders to build a Payments Platform API platform from the ground up. * Ambitious technologist who is passionate about building market leading Payments API Platforms
About the company: Join a high-growth fintech startup in King's Cross as their Founding Engineer, working directly with the founders to build a Payments Platform API platform from the ground up. * Ambitious technologist who is passionate about building market leading Payments API Platforms
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Strong scripting and integration skills - JavaScript, SQL, API/Web Services.
Strong scripting and integration skills - JavaScript, SQL, API/Web Services.
PREMIUM
Ensuring feature parity and API alignment between different platforms
Ensuring feature parity and API alignment between different platforms
NEW
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Senior/Lead Full Stack Developer (React / Python) AI Start up!
Senior/Lead Full Stack Developer (React / Python) AI Start up!
Robert Half
EC1, City of London
Negotiable
API & database experience
API & database experience
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Manage API integrations between platforms. * Strong capability with API integrations and low/no-code tools (n8n, Zapier, Airtable, Make).
Manage API integrations between platforms. * Strong capability with API integrations and low/no-code tools (n8n, Zapier, Airtable, Make).
FEATURED
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Senior Software Engineer
Senior Software Engineer
Halian Technology Limited
W1, Central London
From £90,000 to £95,000 per annum Plus bonus and benefits
Cloud experience withAWSservices (Lambda, API Gateway, S3, etc.)
Cloud experience withAWSservices (Lambda, API Gateway, S3, etc.)
NEW
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Senior Software Engineer
Senior Software Engineer
Spectrum It Recruitment Limited
SO14, Southampton
£65000 - £70000 per annum + Bonus and Benefits
Experience creating RESTful APIs and ensuring API extensibility.
Experience creating RESTful APIs and ensuring API extensibility.
NEW
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Frontend: React.js (Hooks, Context API), TypeScript, Redux, Cypress, Jest
Frontend: React.js (Hooks, Context API), TypeScript, Redux, Cypress, Jest
NEW
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Python, Flask ,Azure, MySQL, API, Django, FastAPI
Python, Flask ,Azure, MySQL, API, Django, FastAPI
NEWFEATURED
Full Stack Python Engineer
Full Stack Python Engineer
Spectrum It Recruitment Limited
PO14, Fareham
£30000 - £55000 per annum + plus benefits
API models
API models
NEW
Deep understanding of RESTful API design and integration
Deep understanding of RESTful API design and integration
NEW
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Good understanding of API testing * Basic understanding of API automation using python
Good understanding of API testing * Basic understanding of API automation using python
NEW
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Software Engineer C++ Mac Extensions EDR
Software Engineer C++ Mac Extensions EDR
Client Server
The City, EC4
£65000 - £80000 per annum + benefits
As a Software Developer you will focus on enabling the core product, written in C / C++ for Windows and Linux to run on Apple Mac software, using the latest Extensions, tools and API integrations.
As a Software Developer you will focus on enabling the core product, written in C / C++ for Windows and Linux to run on Apple Mac software, using the latest Extensions, tools and API integrations.
NEWPREMIUM
.NET Developer
.NET Developer
Halian Technology Limited
W1, Central London
From £70,000 to £80,000 per annum Plus bonus and benefits
Proven hands-on experience withAWS servicessuch as Lambda, ECS/Fargate, API Gateway, DynamoDB, S3, CloudFormation/Terraform.
Proven hands-on experience withAWS servicessuch as Lambda, ECS/Fargate, API Gateway, DynamoDB, S3, CloudFormation/Terraform.
NEW
Familiarity with workflow automation solutions (UiPath, Power Automate, Zapier, n8n) and API development
Familiarity with workflow automation solutions (UiPath, Power Automate, Zapier, n8n) and API development
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Junior PHP Developer
Junior PHP Developer
Rise Technical
Northampton, Northamptonshire
£26000 - £34000 per annum + Great Benefits
Experience with Git version control and API integration
Experience with Git version control and API integration
NEW
Senior Software Engineer for Southampton based organisation
Senior Software Engineer for Southampton based organisation
Claremont Consulting
SO14, Southampton
£55000.00 - £66000.00 per annum + Many benefits, superb pension
Technical knowledge and experience in producing resilient services to provide API services to front end systems.
Technical knowledge and experience in producing resilient services to provide API services to front end systems.
NEW
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Forward Deployed Engineer
Forward Deployed Engineer
McGregor Boyall Associates Limited
EC1, City of London
£70000 - £90000 per annum
Strong data modelling, pipeline development, and API design experience.
Strong data modelling, pipeline development, and API design experience.
NEW
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Lead .Net Software Developer
Lead .Net Software Developer
Hireful
Milton Keynes, Buckinghamshire
£65k - £75k base salary plus Bonus and awesome benefits
Are you a hands-on Lead or Senior .Net Developer ready to shape architecture and guide talented developers? Want a hybrid role with 3 days WFH? This is your chance to stay close to the code while making key technical decisions that drive real business impact. You'll join a collaborative, forward-thinking team building cutting-edge products — with the support, tools, and flexibility to thrive. Role: Lead Software Developer, Senior .Net Developer, Software Engineering Manager, Senior Full Stack Developer, Lead .Net Developer, Lead Software Engineer, Senior C# Developer - Salary: £65k - £75k base + Bonus - Benefits: 5% pension, 25 days holiday, 2 wellbeing days, Christmas shutdown, private healthcare, life assurance, cinema tickets & more - Location: Milton Keynes – Hybrid (2 days a week in office) If you’ve got strong .Net (C#) experience and skills in GitHub, APIs, Pos
Are you a hands-on Lead or Senior .Net Developer ready to shape architecture and guide talented developers? Want a hybrid role with 3 days WFH? This is your chance to stay close to the code while making key technical decisions that drive real business impact. You'll join a collaborative, forward-thinking team building cutting-edge products — with the support, tools, and flexibility to thrive. Role: Lead Software Developer, Senior .Net Developer, Software Engineering Manager, Senior Full Stack Developer, Lead .Net Developer, Lead Software Engineer, Senior C# Developer - Salary: £65k - £75k base + Bonus - Benefits: 5% pension, 25 days holiday, 2 wellbeing days, Christmas shutdown, private healthcare, life assurance, cinema tickets & more - Location: Milton Keynes – Hybrid (2 days a week in office) If you’ve got strong .Net (C#) experience and skills in GitHub, APIs, Pos
NEWFEATURED