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Locations
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Date posted
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13 API jobs in Gloucestershire + 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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Requirements Gathering: Work with stakeholders to extract and document clear, actionable business and technical requirements, particularly for API and software integration projects.
Requirements Gathering: Work with stakeholders to extract and document clear, actionable business and technical requirements, particularly for API and software integration projects.
FEATURED
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Software API Developer - Hybrid - Salary £50k (DOE) * Experienced with ASP.NET Core MVC and Web API * Understanding of API versioning documentation (e.g. Swagger)
Software API Developer - Hybrid - Salary £50k (DOE) * Experienced with ASP.NET Core MVC and Web API * Understanding of API versioning documentation (e.g. Swagger)
FEATURED
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Software Engineer with AI Integration
Software Engineer with AI Integration
Alexander Mae (Bristol) Ltd
BS1, Bristol
From £30,000 to £35,000 per annum
Integrate external AI services (e.g., OpenAI API) into prototypes and production features.
Integrate external AI services (e.g., OpenAI API) into prototypes and production features.
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API, REST, and RPC
API, REST, and RPC
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DevOps Engineer
DevOps Engineer
Newton Blue
BS1, Bristol
Up to £60,000 per annum dependent on experience plus excellent benefit
Rest API's and/or WCF services, working with JSON and SOAP
Rest API's and/or WCF services, working with JSON and SOAP
Technical Services Consultant
Technical Services Consultant
Newton Blue
BS1, Bristol
Up to £60,000 per annum dependent on experience plus excellent benefit
Rest API's and/or WCF services, working with JSON and SOAP
Rest API's and/or WCF services, working with JSON and SOAP
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Full Stack Engineer
Full Stack Engineer
Searchstone Ltd
B94, Solihull
From £35,000 to £40,000 per annum 25 days AL, Matched Pen, Free Parkin
Company Overview - A leading provider of membership management, IT solutions and business support to gyms, health clubs, and leisure centres across the UK and Ireland is seeking an experienced Full Stack Developer. With clients also in Norway, Greece, and the USA, the organisation is expanding rapidly and developing its next generation of products and services. The business delivers a wide range of solutions including club software, entry systems, member apps, websites, and digital marketing tools. The development team is based in the West Midlands and works within a collaborative, agile environment. The Role - This is a hands-on role requiring strong technical expertise and problem-solving skills. The developer will be involved in all stages of the software development lifecycle from design and development through to delivery and support.
Company Overview - A leading provider of membership management, IT solutions and business support to gyms, health clubs, and leisure centres across the UK and Ireland is seeking an experienced Full Stack Developer. With clients also in Norway, Greece, and the USA, the organisation is expanding rapidly and developing its next generation of products and services. The business delivers a wide range of solutions including club software, entry systems, member apps, websites, and digital marketing tools. The development team is based in the West Midlands and works within a collaborative, agile environment. The Role - This is a hands-on role requiring strong technical expertise and problem-solving skills. The developer will be involved in all stages of the software development lifecycle from design and development through to delivery and support.
We're looking for a versatile Software Engineer to join a leading Bristol-based business, delivering high-quality solutions for clients across finance, e-commerce, and technology. This is a hands-on role where you'll work across the full stack. Back-end services in C#/.NET and Python, and dynamic front-end applications using JavaScript, React, Node.js, and TypeScript. Location: Bristol (On-site) Contract: 6 Months (OIR35) Rate: £350-450 p/day - Start date: ASAP * Build and maintain software using C#/.NET, Python, JavaScript, React, Node.js, and TypeScript * Develop and optimise APIs, services, and integration layers. * Deliver end-to-end features across back-end, front-end, and cloud-hosted environments. * Write clean, efficient, and maintainable code following best practices. * Contribute to code reviews, testing, and Agile ceremonies.
We're looking for a versatile Software Engineer to join a leading Bristol-based business, delivering high-quality solutions for clients across finance, e-commerce, and technology. This is a hands-on role where you'll work across the full stack. Back-end services in C#/.NET and Python, and dynamic front-end applications using JavaScript, React, Node.js, and TypeScript. Location: Bristol (On-site) Contract: 6 Months (OIR35) Rate: £350-450 p/day - Start date: ASAP * Build and maintain software using C#/.NET, Python, JavaScript, React, Node.js, and TypeScript * Develop and optimise APIs, services, and integration layers. * Deliver end-to-end features across back-end, front-end, and cloud-hosted environments. * Write clean, efficient, and maintainable code following best practices. * Contribute to code reviews, testing, and Agile ceremonies.
NEWFEATURED
We're currently working with a growing SaaS company based in Banbury that are looking for a Senior Software Engineer skilled with C# ASP.NET, Angular, and SQL. This role will naturally grow in to a Lead Engineer position as the team grows. You will be working to develop and build their new payroll project, which will be rolling out nationally, and then internationally. This role is based in Banbury, and it will require you to be onsite a minimum of two days per week. * Professional software engineering experience (typically 5+ years) using C# / ASP.NET (Core & Framework) and modern JavaScript/TypeScript frameworks, particularly Angular (v8+). * Significant understanding and practical experience with relational databases (MySQL /PostgreSQL preferred). * Expertise in version control systems (Git) and branching strategies (Gitflow).
We're currently working with a growing SaaS company based in Banbury that are looking for a Senior Software Engineer skilled with C# ASP.NET, Angular, and SQL. This role will naturally grow in to a Lead Engineer position as the team grows. You will be working to develop and build their new payroll project, which will be rolling out nationally, and then internationally. This role is based in Banbury, and it will require you to be onsite a minimum of two days per week. * Professional software engineering experience (typically 5+ years) using C# / ASP.NET (Core & Framework) and modern JavaScript/TypeScript frameworks, particularly Angular (v8+). * Significant understanding and practical experience with relational databases (MySQL /PostgreSQL preferred). * Expertise in version control systems (Git) and branching strategies (Gitflow).
FEATURED
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We’re working with a hi-tech veteran owned simulation/ data-analytics company which services the defence and security market. They are looking to expand their in-house software engineering capability with the addition of a Full Stack Software Developer. This is a Full Stack role, but the client is open to Front End Developers, looking to develop back end skills, or back end devs interested in learning some front end. This is a great opportunity to work on secure & high-impact defence systems. This is a junior to mid-level role that would suite developers with ideally 2-5 years’ experience, please still apply if your experience levels fall’s outside this. * Developing full-stack solutions for secure defence applications * Working closely with software engineers, PMs, and security stakeholders * Building reusable, testable and scalable code with high quality and perform
We’re working with a hi-tech veteran owned simulation/ data-analytics company which services the defence and security market. They are looking to expand their in-house software engineering capability with the addition of a Full Stack Software Developer. This is a Full Stack role, but the client is open to Front End Developers, looking to develop back end skills, or back end devs interested in learning some front end. This is a great opportunity to work on secure & high-impact defence systems. This is a junior to mid-level role that would suite developers with ideally 2-5 years’ experience, please still apply if your experience levels fall’s outside this. * Developing full-stack solutions for secure defence applications * Working closely with software engineers, PMs, and security stakeholders * Building reusable, testable and scalable code with high quality and perform
Strong integration, E2E and API testing experience
Strong integration, E2E and API testing experience
PREMIUM
Responsible for backend architecture, API design, and integration strategy.
Responsible for backend architecture, API design, and integration strategy.
FEATURED
36 exact matches jobs are outside your preferred location
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Systems Integration Architect - Oracle Fusion & Oracle Cloud
Systems Integration Architect - Oracle Fusion & Oracle Cloud
EFCI Group Ltd
OX4, Oxford
From £80,000 to £100,000 per annum
System and Integration Architect Oracle Fusion & Oracle Cloud - Location:Oxford - Reports to:Head of Application Integration Services - Effective Date:ASAP - This leading Institute is reimagining how science and technology can solve global challenges in health, food security, climate change, and advanced automation/AI. Join a team of experts transforming pioneering science into commercial products for global benefit and long-term sustainability. The institute encourages collaboration, innovation, and perseverance. ASystem and Integration Architectwith deep expertise in Oracle Fusion Applications and Oracle Cloud technologies is sought. This is a key leadership role responsible for defining the architecture and governance of enterprise-wide integrations across Oracle SaaS, PaaS, within the Technology Department.
System and Integration Architect Oracle Fusion & Oracle Cloud - Location:Oxford - Reports to:Head of Application Integration Services - Effective Date:ASAP - This leading Institute is reimagining how science and technology can solve global challenges in health, food security, climate change, and advanced automation/AI. Join a team of experts transforming pioneering science into commercial products for global benefit and long-term sustainability. The institute encourages collaboration, innovation, and perseverance. ASystem and Integration Architectwith deep expertise in Oracle Fusion Applications and Oracle Cloud technologies is sought. This is a key leadership role responsible for defining the architecture and governance of enterprise-wide integrations across Oracle SaaS, PaaS, within the Technology Department.
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Skilled in UI and API test automation tools
Skilled in UI and API test automation tools
FEATURED
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Developer - Remote - FTC
Developer - Remote - FTC
Data Careers
OX5, Kidlington, OX5 1RA
Up to £40000 per annum + excellent pension and other Emp. Bens.
XSLT, API's. It's a fascinating role developing and enhancing a Police Forces Applications, (as well as the API's so that they integrate with other the Police Force applications), that deliver critical services to the wider community. * Good API / writing API Integrations, (XSLT, XML etc.)
XSLT, API's. It's a fascinating role developing and enhancing a Police Forces Applications, (as well as the API's so that they integrate with other the Police Force applications), that deliver critical services to the wider community. * Good API / writing API Integrations, (XSLT, XML etc.)
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Design and implement API integrations to integrate data
Design and implement API integrations to integrate data
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You'll work closely with developers and product colleagues to ensure reliability, security, and performance across our API-driven systems. * Skilled in automated API testing and a programming language (ideally C#).
You'll work closely with developers and product colleagues to ensure reliability, security, and performance across our API-driven systems. * Skilled in automated API testing and a programming language (ideally C#).
DevOps Engineer
DevOps Engineer
Newton Blue
CF1, Cardiff
Up to £60,000 per annum dependent on experience plus excellent benefit
Rest API's and/or WCF services, working with JSON and SOAP
Rest API's and/or WCF services, working with JSON and SOAP
Technical Services Consultant
Technical Services Consultant
Newton Blue
CF1, Cardiff
Up to £60,000 per annum dependent on experience plus excellent benefit
Rest API's and/or WCF services, working with JSON and SOAP
Rest API's and/or WCF services, working with JSON and SOAP
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Solution Architect CDE BIM
Solution Architect CDE BIM
Belcan Technical Recruiting (UK) Ltd
Heathcote, CV34 6DA
£400 - £500 per day
Are you a strategic thinker with a passion for designing scalable, secure, and innovative SaaS solutions? We're looking for a Solution Architect to lead the technical vision and delivery of cutting-edge platforms, including Common Data Environments (CDE), Building Information Modelling (BIM), and enterprise integrations. Belcan Workforce Solutions are hiring on a 6 month basis - Inside IR35 - Hybrid working 3 days on our clients site in Warwick. About the Role - As our Solution Architect, you'll play a pivotal role in shaping the future of our digital ecosystem. * Developing business cases to evaluate SaaS options (market-based or in-house) * Gathering and translating functional and non-functional requirements * Leading RFP evaluations and vendor selection * Designing scalable, secure, and maintainable architecture * Ensuring compliance with security and IT controls
Are you a strategic thinker with a passion for designing scalable, secure, and innovative SaaS solutions? We're looking for a Solution Architect to lead the technical vision and delivery of cutting-edge platforms, including Common Data Environments (CDE), Building Information Modelling (BIM), and enterprise integrations. Belcan Workforce Solutions are hiring on a 6 month basis - Inside IR35 - Hybrid working 3 days on our clients site in Warwick. About the Role - As our Solution Architect, you'll play a pivotal role in shaping the future of our digital ecosystem. * Developing business cases to evaluate SaaS options (market-based or in-house) * Gathering and translating functional and non-functional requirements * Leading RFP evaluations and vendor selection * Designing scalable, secure, and maintainable architecture * Ensuring compliance with security and IT controls
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Solution Architect - Hybrid (Travel to Warwick 1-2 days per month) £700 Outside - 6 months - We are seeking a skilled Solution Architect to join our team. In this role, you will be responsible for creating comprehensive business cases to identify and select the most suitable SaaS applications, either from existing market options or through in-house development. Your expertise will be crucial in gathering and analysing requirements, designing architectural solutions, evaluating proposals through Request for Proposals (RFP), and ensuring that Non-Functional Requirements (NFR) are met. You will address security and IT controls while creating architectural artefacts, leading the technical aspects of SaaS deployment across multiple domains, and integrating Identity Provider (IdP) Single Sign-On (SSO) solutions.
Solution Architect - Hybrid (Travel to Warwick 1-2 days per month) £700 Outside - 6 months - We are seeking a skilled Solution Architect to join our team. In this role, you will be responsible for creating comprehensive business cases to identify and select the most suitable SaaS applications, either from existing market options or through in-house development. Your expertise will be crucial in gathering and analysing requirements, designing architectural solutions, evaluating proposals through Request for Proposals (RFP), and ensuring that Non-Functional Requirements (NFR) are met. You will address security and IT controls while creating architectural artefacts, leading the technical aspects of SaaS deployment across multiple domains, and integrating Identity Provider (IdP) Single Sign-On (SSO) solutions.
£95,000 GBP - Hybrid WORKING - Location: Cardiff, Bristol, Birmingham, West Midlands - United Kingdom Type: Permanent - Overview - Our client is seeking an experienced Senior Data Scientist to join their Defence business unit. In this role, you will lead project teams delivering bespoke algorithms across the defence and national security sector. You'll be responsible for defining the data science approach, designing supporting software architectures, and ensuring best practices are applied throughout. This is a client-facing role with significant scope to shape technical direction, influence future projects, and strengthen stakeholder relationships. You will also play a key part in mentoring and developing other data scientists, while contributing to broader knowledge-sharing initiatives across the business. Key Responsibilities
£95,000 GBP - Hybrid WORKING - Location: Cardiff, Bristol, Birmingham, West Midlands - United Kingdom Type: Permanent - Overview - Our client is seeking an experienced Senior Data Scientist to join their Defence business unit. In this role, you will lead project teams delivering bespoke algorithms across the defence and national security sector. You'll be responsible for defining the data science approach, designing supporting software architectures, and ensuring best practices are applied throughout. This is a client-facing role with significant scope to shape technical direction, influence future projects, and strengthen stakeholder relationships. You will also play a key part in mentoring and developing other data scientists, while contributing to broader knowledge-sharing initiatives across the business. Key Responsibilities
NEWPREMIUM
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Front End Games Developer - Hybrid Remote
Front End Games Developer - Hybrid Remote
VERTECH GROUP (UK) LTD
OX4, Oxford
From £55,000 to £75,000 per annum + Bonus + Benefits
Front End Game Developer - Location:Home Based / 1 day per week in Oxford - Salary:Circa 55K 75K + Bonus + Benefits - Senior Front End Games Developerrequired by fast-growing, Top Tech Company! This is a diverse, challenging role in a talented team where youll be building cutting-edge casino slot games, driving feature development, shaping the architecture, and mentoring junior developers * At least 5yrs development experience * Games development experience * Mobile-first mindset * HTML5, TypeScript * PixiJS, Phaser or similar * WebGL or Canvas 2D APIs * Git or similar * Maths, statistics, or physics background * 3D development experience - Tremendous opportunity offering plenty of scope for career progression in a friendly, innovative environment where youll be able to bring ideas, keep up-to-date with the latest technologies and enjoy a healthy work/life balance!
Front End Game Developer - Location:Home Based / 1 day per week in Oxford - Salary:Circa 55K 75K + Bonus + Benefits - Senior Front End Games Developerrequired by fast-growing, Top Tech Company! This is a diverse, challenging role in a talented team where youll be building cutting-edge casino slot games, driving feature development, shaping the architecture, and mentoring junior developers * At least 5yrs development experience * Games development experience * Mobile-first mindset * HTML5, TypeScript * PixiJS, Phaser or similar * WebGL or Canvas 2D APIs * Git or similar * Maths, statistics, or physics background * 3D development experience - Tremendous opportunity offering plenty of scope for career progression in a friendly, innovative environment where youll be able to bring ideas, keep up-to-date with the latest technologies and enjoy a healthy work/life balance!
FEATURED
Senior Full Stack C# .Net Developer - Hybrid Remote
Senior Full Stack C# .Net Developer - Hybrid Remote
VERTECH GROUP (UK) LTD
OX4, Oxford
From £70,000 to £85,000 per annum + Bonus + Benefits
Senior Full Stack C# .Net Developer - Location:Home based / 1 day per month in Oxford - Salary:Circa 70K 85K DOE + Benefits - Senior Full Stack C# .Net Developerrequired by a well-established and fast-growing Top Tech company! This is a varied, challenging role building mission-critical, user-facing applications used at scale. Youll be developing new features, contribute to key technical decisions, and helping to shape the quality of code across the team * At least 5yrs development experience * Experience with high-traffic, responsive apps and sites * Expertise in C# .Net Core * RESTful APIs * TypeScript &JavaScript * Frameworks: Angular, Vue, or React * HTML5 and CSS3 * Familiarity with CI/CD tools * Version control: Git or similar * SQL Server & MySQL - Tremendous opportunity offering plenty of scope for career progression in a friendly, innovative environment where
Senior Full Stack C# .Net Developer - Location:Home based / 1 day per month in Oxford - Salary:Circa 70K 85K DOE + Benefits - Senior Full Stack C# .Net Developerrequired by a well-established and fast-growing Top Tech company! This is a varied, challenging role building mission-critical, user-facing applications used at scale. Youll be developing new features, contribute to key technical decisions, and helping to shape the quality of code across the team * At least 5yrs development experience * Experience with high-traffic, responsive apps and sites * Expertise in C# .Net Core * RESTful APIs * TypeScript &JavaScript * Frameworks: Angular, Vue, or React * HTML5 and CSS3 * Familiarity with CI/CD tools * Version control: Git or similar * SQL Server & MySQL - Tremendous opportunity offering plenty of scope for career progression in a friendly, innovative environment where
FEATURED