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5 API jobs in South Glamorgan + 10 miles
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Cardiff - Full-time £50,000 £60,000 - It all began with a simple idea: to make home moving easier and more affordable. What started as a small, passionate team with big ambitions has grown into a platform thats redefining the home-moving experience across the UK. Headquartered in the heart of Cardiff, our client is more than just a comparison servicetheyre on a mission to transform the way people move home. Their culture values openness, flexibility, and transparency, which is reflected in how they work and how they build their products. As they continue to scale, theyre now looking for a talented Full Stack Developer to join their growing tech team. This is a chance to work on a fast-evolving platform where your code directly impacts thousands of users navigating one of lifes biggest milestones - About You * You've led dev projects and enjoy mentoring others
Cardiff - Full-time £50,000 £60,000 - It all began with a simple idea: to make home moving easier and more affordable. What started as a small, passionate team with big ambitions has grown into a platform thats redefining the home-moving experience across the UK. Headquartered in the heart of Cardiff, our client is more than just a comparison servicetheyre on a mission to transform the way people move home. Their culture values openness, flexibility, and transparency, which is reflected in how they work and how they build their products. As they continue to scale, theyre now looking for a talented Full Stack Developer to join their growing tech team. This is a chance to work on a fast-evolving platform where your code directly impacts thousands of users navigating one of lifes biggest milestones - About You * You've led dev projects and enjoy mentoring others
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Senior Test Engineer
Senior Test Engineer
Companies House
Cardiff, South Glamorgan, CF14 3UZ
From £40,398 to £51,398 per annum
Proven experience designing and automating software tests, ideally in web and API applications. * API * Karate/Rest API
Proven experience designing and automating software tests, ideally in web and API applications. * API * Karate/Rest API
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This includes developing front-end applications and back-end .NET API services.
This includes developing front-end applications and back-end .NET API services.
Understanding of test principals * Solid understanding of REST API integration and experience working with third-party APIs.
Understanding of test principals * Solid understanding of REST API integration and experience working with third-party APIs.
Knowledge of API testing tools like Postman, Advanced REST Client or SOAPUI.
Knowledge of API testing tools like Postman, Advanced REST Client or SOAPUI.
111 exact matches jobs are outside your preferred location
Skilled in Java and automating tests across UI, API, and microservices.
Skilled in Java and automating tests across UI, API, and microservices.
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Senior .NET Developer - Must have GDS Experience - 6 months
Senior .NET Developer - Must have GDS Experience - 6 months
Stealth IT Consulting Limited
UK
£410 per day 410 Outside IR35
Strong understanding of microservices architecture and RESTful API development.
Strong understanding of microservices architecture and RESTful API development.
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Senior Backend Developer for Video on Demand and Live Streaming (GoLang) - Contract - 12 months - OUTSIDE IR35 - Remote (UK) A leading video platform is seeking experienced Senior Backend Developers with expertise in GoLang to contribute to the VoD2Live project. This person must have experience working on Streaming or Video on Demand. The role requires developing robust, high-performance backend services that integrate seamlessly with third-party services such as CDNs, DRM providers, and cloud platforms. This position is ideal for candidates with strong problem-solving skills and a deep understanding of video streaming protocols and microservices architecture. * Develop functional and high-performing backend services that meet the platform's requirements. * Write high-quality, well-documented, and maintainable code.
Senior Backend Developer for Video on Demand and Live Streaming (GoLang) - Contract - 12 months - OUTSIDE IR35 - Remote (UK) A leading video platform is seeking experienced Senior Backend Developers with expertise in GoLang to contribute to the VoD2Live project. This person must have experience working on Streaming or Video on Demand. The role requires developing robust, high-performance backend services that integrate seamlessly with third-party services such as CDNs, DRM providers, and cloud platforms. This position is ideal for candidates with strong problem-solving skills and a deep understanding of video streaming protocols and microservices architecture. * Develop functional and high-performing backend services that meet the platform's requirements. * Write high-quality, well-documented, and maintainable code.
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They are seeking aLead JavaScript (Node.js) API and React Developerto be instrumental in delivering robust, cloud-native applications that integrate cutting-edge AI features and provide a seamless user experience. * LeverageAWS API Gatewayfor managing scalable APIs andAWS SQSfor asynchronous, event-driven messaging. * Deep understanding ofAWS services, particularly API Gateway and SQS.
They are seeking aLead JavaScript (Node.js) API and React Developerto be instrumental in delivering robust, cloud-native applications that integrate cutting-edge AI features and provide a seamless user experience. * LeverageAWS API Gatewayfor managing scalable APIs andAWS SQSfor asynchronous, event-driven messaging. * Deep understanding ofAWS services, particularly API Gateway and SQS.
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Skilled in Java and automating tests across UI, API, and microservices.
Skilled in Java and automating tests across UI, API, and microservices.
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Contract, 6 months - Outside IR35 - Location: Leeds, willingness to be in the office once per week or every other week as a minimum - Why Apply? We are looking for an experienced Dynamics 365 CRM Developers (multiple positions available) to support an in-flight transformation programme to build and migrate to a new Dynamics 365 CRM Solution. This involves moving off the current on-premise solution that will soon reach the end of its extended support period. Responsibilities * Design, develop, and customize solutions within Microsoft Dynamics 365 CRM. * Develop custom plugins, workflows, and integrations using C#, JavaScript, and Power Platform tools. * Work with business analysts and end users to gather and refine requirements. * Build and maintain integrations with other systems and services via APIs, Azure Logic Apps, and Power Automate.
Contract, 6 months - Outside IR35 - Location: Leeds, willingness to be in the office once per week or every other week as a minimum - Why Apply? We are looking for an experienced Dynamics 365 CRM Developers (multiple positions available) to support an in-flight transformation programme to build and migrate to a new Dynamics 365 CRM Solution. This involves moving off the current on-premise solution that will soon reach the end of its extended support period. Responsibilities * Design, develop, and customize solutions within Microsoft Dynamics 365 CRM. * Develop custom plugins, workflows, and integrations using C#, JavaScript, and Power Platform tools. * Work with business analysts and end users to gather and refine requirements. * Build and maintain integrations with other systems and services via APIs, Azure Logic Apps, and Power Automate.
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Remote - £700-£800 per day (outside IR35) About the Role - We are seeking an experienced Technical Architect to join our team on a contract basis to lead the design and delivery of solutions leveraging Salesforce Commerce Cloud (SFCC) and Blue Yonder technologies. You will be responsible for shaping scalable, high-performance, and integrated solutions that meet complex business needs across eCommerce and supply chain functions. Key Responsibilities * Lead the technical architecture, design, and implementation of solutions using Salesforce Commerce Cloud (B2C/B2B) and Blue Yonder platforms. * Define integration patterns between eCommerce, OMS, and supply chain systems using best practices. * Collaborate with business analysts, product owners, developers, and third-party vendors to ensure solutions align with business objectives.
Remote - £700-£800 per day (outside IR35) About the Role - We are seeking an experienced Technical Architect to join our team on a contract basis to lead the design and delivery of solutions leveraging Salesforce Commerce Cloud (SFCC) and Blue Yonder technologies. You will be responsible for shaping scalable, high-performance, and integrated solutions that meet complex business needs across eCommerce and supply chain functions. Key Responsibilities * Lead the technical architecture, design, and implementation of solutions using Salesforce Commerce Cloud (B2C/B2B) and Blue Yonder platforms. * Define integration patterns between eCommerce, OMS, and supply chain systems using best practices. * Collaborate with business analysts, product owners, developers, and third-party vendors to ensure solutions align with business objectives.
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We are seeking an IT Business Systems Manager to take ownership of systems development and integration across an industry recognised beauty business. This fully remote role offers the opportunity to work closely with stakeholders across multiple functions - from operations and production to commercial and finance - helping to deliver efficient, future-proof solutions in a fast-paced environment. Salary: up to £70K - Location: Remote - Our client, a globally recognised brand in the beauty and personal care industry, is investing heavily in its internal systems and digital capabilities. They are now seeking an IT Systems Development Manager to take ownership of systems development and integration across their business. * Up to £70,000 salary, depending on experience * Fully remote working (UK-based candidates only)
We are seeking an IT Business Systems Manager to take ownership of systems development and integration across an industry recognised beauty business. This fully remote role offers the opportunity to work closely with stakeholders across multiple functions - from operations and production to commercial and finance - helping to deliver efficient, future-proof solutions in a fast-paced environment. Salary: up to £70K - Location: Remote - Our client, a globally recognised brand in the beauty and personal care industry, is investing heavily in its internal systems and digital capabilities. They are now seeking an IT Systems Development Manager to take ownership of systems development and integration across their business. * Up to £70,000 salary, depending on experience * Fully remote working (UK-based candidates only)
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Full Stack Python/JavaScript Developer - INSIDE IR35 - REMOTE
Full Stack Python/JavaScript Developer - INSIDE IR35 - REMOTE
Queen Square Recruitment Limited
UK
Up to £425 per day
Were looking for an experienced Full Stack Developer with strong Python skills and a passion for building reliable, high-performance applications. This role will see you working across both front-end and back-end technologies, with a particular focus on Angular, SQL/RDBMS, and data processing with Pandas. * Develop and maintain scalable back-end services using Python * Build responsive, modern front-end interfaces using Angular (preferred) or React if required * Write efficient SQL queries and manage data within relational databases * Use Pandas for data manipulation, transformation, and analysis * Collaborate with product, data, and QA teams to deliver features from concept through to release * Contribute to technical discussions, code reviews, and continuous improvement * Maintain clean, testable, and well-documented code across the stack
Were looking for an experienced Full Stack Developer with strong Python skills and a passion for building reliable, high-performance applications. This role will see you working across both front-end and back-end technologies, with a particular focus on Angular, SQL/RDBMS, and data processing with Pandas. * Develop and maintain scalable back-end services using Python * Build responsive, modern front-end interfaces using Angular (preferred) or React if required * Write efficient SQL queries and manage data within relational databases * Use Pandas for data manipulation, transformation, and analysis * Collaborate with product, data, and QA teams to deliver features from concept through to release * Contribute to technical discussions, code reviews, and continuous improvement * Maintain clean, testable, and well-documented code across the stack
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Senior ServiceNow Technical Consultant - Outside IR35 6-month
Senior ServiceNow Technical Consultant - Outside IR35 6-month
InterQuest Group (UK) Limited
UK
£450 - 550 per day
Location: Remote (Southern UK Based) Contract Type: Contract (Outside IR35) Duration: 6 months - Day Rate: c£500 - We are seeking a highly skilled and experienced Senior ServiceNow Technical Consultant to join our client’s team on a contract basis. • Lead and contribute to the technical delivery of ServiceNow projects, including requirements gathering, solution design, development, testing, and deployment. • Provide expert-level technical guidance and support on the ServiceNow platform. • Develop and customize ServiceNow applications and modules, including but not limited to ITSM, ITOM, CSM, and Service Portal. • Design and implement integrations between ServiceNow and other enterprise systems. • Perform system administration, health checks, and performance tuning of ServiceNow instances. • Create and maintain technical documentation, including design specifications,
Location: Remote (Southern UK Based) Contract Type: Contract (Outside IR35) Duration: 6 months - Day Rate: c£500 - We are seeking a highly skilled and experienced Senior ServiceNow Technical Consultant to join our client’s team on a contract basis. • Lead and contribute to the technical delivery of ServiceNow projects, including requirements gathering, solution design, development, testing, and deployment. • Provide expert-level technical guidance and support on the ServiceNow platform. • Develop and customize ServiceNow applications and modules, including but not limited to ITSM, ITOM, CSM, and Service Portal. • Design and implement integrations between ServiceNow and other enterprise systems. • Perform system administration, health checks, and performance tuning of ServiceNow instances. • Create and maintain technical documentation, including design specifications,
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API-level connectivity management
API-level connectivity management
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Contact Data Engineer - Location: Remote - Day Rate: £450 - £550 per day (Inside IR35) Contract: Initial 6 months - Deerfoot Recruitment is working on behalf of our client - a well-established retail organisation currently undergoing an exciting, large-scale IT transformation - to source a skilled Data Engineer for a contract opportunity. This role will play a key part in the modernisation of the business's data estate, supporting the migration from legacy systems to a modern, cloud-based data platform built on Microsoft Azure technologies. The successful contractor will join a collaborative team, contributing to the design, development, and maintenance of robust data pipelines and models, ensuring data quality and accessibility across the organisation. * Strong hands-on experience with Azure Data Platform technologies (Synapse, Data Lakes, ADF)
Contact Data Engineer - Location: Remote - Day Rate: £450 - £550 per day (Inside IR35) Contract: Initial 6 months - Deerfoot Recruitment is working on behalf of our client - a well-established retail organisation currently undergoing an exciting, large-scale IT transformation - to source a skilled Data Engineer for a contract opportunity. This role will play a key part in the modernisation of the business's data estate, supporting the migration from legacy systems to a modern, cloud-based data platform built on Microsoft Azure technologies. The successful contractor will join a collaborative team, contributing to the design, development, and maintenance of robust data pipelines and models, ensuring data quality and accessibility across the organisation. * Strong hands-on experience with Azure Data Platform technologies (Synapse, Data Lakes, ADF)
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Experience designing, integrating, and developing RESTful API's
Experience designing, integrating, and developing RESTful API's
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Full Stack Ruby Developer - Fully Remote
Full Stack Ruby Developer - Fully Remote
G.R.E. Recruitment Limited
UK
From £55,000 to £65,000 per annum
Fully Remote Ruby Developer (Ruby, Rails, PostgreSQL, REST API's, AWS/Heroku, ReactJS) -Open to applicants in the UK and EU -Award Winning Legal Platform -£55,000 - £65,000 * Experience of developing REST API's
Fully Remote Ruby Developer (Ruby, Rails, PostgreSQL, REST API's, AWS/Heroku, ReactJS) -Open to applicants in the UK and EU -Award Winning Legal Platform -£55,000 - £65,000 * Experience of developing REST API's
Building complex SPAs in ASP.NET Core in the context of a service / API oriented architecture
Building complex SPAs in ASP.NET Core in the context of a service / API oriented architecture
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Our customers value us for being able to abstract away the intricacies of foreign exchange market under a simple API solution.
Our customers value us for being able to abstract away the intricacies of foreign exchange market under a simple API solution.
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API Design & Implementation
API Design & Implementation
Summary - Join Lunar Energy, a company building an all-electric home energy ecosystem, as a Staff Software Engineer (Backend) in the UK. You will build platform infrastructure for real-time data processing using AWS, solve optimization problems with machine learning, and design APIs and UI interfaces using functional programming and serverless computing. This role requires 8+ years of software engineering experience, proficiency in strongly-typed languages, and experience with IoT devices and Unix systems. The ideal candidate is autonomous, values learning, and enjoys working in a smaller team. Lunar Energy offers competitive compensation, healthcare benefits, wellbeing perks, financial security, professional development opportunities, and a hybrid work arrangement. Requirements - 1. 8+ years of experience as a Software Engineer - 2.
Summary - Join Lunar Energy, a company building an all-electric home energy ecosystem, as a Staff Software Engineer (Backend) in the UK. You will build platform infrastructure for real-time data processing using AWS, solve optimization problems with machine learning, and design APIs and UI interfaces using functional programming and serverless computing. This role requires 8+ years of software engineering experience, proficiency in strongly-typed languages, and experience with IoT devices and Unix systems. The ideal candidate is autonomous, values learning, and enjoys working in a smaller team. Lunar Energy offers competitive compensation, healthcare benefits, wellbeing perks, financial security, professional development opportunities, and a hybrid work arrangement. Requirements - 1. 8+ years of experience as a Software Engineer - 2.
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Experience working with Postman, SOAPUI, GraphQL or similar API testing tools
Experience working with Postman, SOAPUI, GraphQL or similar API testing tools
Define API specifications and standards for seamless data exchange between services.
Define API specifications and standards for seamless data exchange between services.