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        6 Contract API jobs in Cardiff Business Park + 20 miles

        Test Automation Engineer

        Queen Square Recruitment Limited
        CF1, Cardiff
        Unspecified
        Experience with API automation (Postman or similar).
        Experience with API automation (Postman or similar).
        NEW

        Test Automation Engineer

        Infoplus Technologies UK Ltd
        Cardiff Business Park, CF14
        From £450 to £500 per day Daily rates are within Inside IR35
        Good to have API Automation experience/component integration testing experience with Postman or similar tools.
        Good to have API Automation experience/component integration testing experience with Postman or similar tools.
        more
        NEW

        12 exact matches jobs are outside your preferred location

        Software Engineer

        JAM Recruitment Ltd
        Ashton, BS3 2HQ
        £650 - £745 per day + Umbrella, inside IR35
        Strong knowledge of API design, integration methods (REST, Webhooks, GraphQL), and authentication protocols (OAuth2, JWT).
        Strong knowledge of API design, integration methods (REST, Webhooks, GraphQL), and authentication protocols (OAuth2, JWT).
        more
        NEW
        Technical experience in areas suchas Azure, .NET frameworks, API integrations, MS SQL Server and SSRS.
        Technical experience in areas suchas Azure, .NET frameworks, API integrations, MS SQL Server and SSRS.
        NEWFEATURED

        Backend engineer

        LA International Computer Consultants Ltd
        SN13, Corsham
        £500 - £600 per day + price in
        Architect and implement backend services that support secure, air-gapped AI - deployments, with a focus on NLP-based tooling * Develop pipelines for transcription ingestion and real-time analytical insight - generation * Support graph and RAG-based inference layers using data from structured and - unstructured sources * Build and expose APIs for frontend consumption, enabling natural-language - querying, dynamic visualisation, and reporting * Ensure system portability via containerisation * Collaborate closely with data scientists to integrate self-hosted LLMs and - analysis models into the backend infrastructure * Work with platform engineers to tune deployments for hardware-limited - environments - What You Bring * Strong experience building secure, scalable backend systems in Python and/or - Go * Deep understanding of containerised services, particularly in Kuberne
        Architect and implement backend services that support secure, air-gapped AI - deployments, with a focus on NLP-based tooling * Develop pipelines for transcription ingestion and real-time analytical insight - generation * Support graph and RAG-based inference layers using data from structured and - unstructured sources * Build and expose APIs for frontend consumption, enabling natural-language - querying, dynamic visualisation, and reporting * Ensure system portability via containerisation * Collaborate closely with data scientists to integrate self-hosted LLMs and - analysis models into the backend infrastructure * Work with platform engineers to tune deployments for hardware-limited - environments - What You Bring * Strong experience building secure, scalable backend systems in Python and/or - Go * Deep understanding of containerised services, particularly in Kuberne
        more
        NEW
        Develop efficient data access patterns within our Python API to support application performance and scalability * Experience with event-driven design patterns and frontend state management (Redux, Context API)
        Develop efficient data access patterns within our Python API to support application performance and scalability * Experience with event-driven design patterns and frontend state management (Redux, Context API)
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        NEW
        A Senior ServiceNow Developer is sought by our client to work with their team to deliver continuous improvement and development of the Roadmap for end users. The existing team is a mixture of their own resources and 3rd party suppliers. You will be a highly experienced ServiceNow consultant, with a proven track record in ServiceNow development, including certification and experience in implementing different ServiceNow implementation levels and components.. Key Details * INSIDE IR35 * Remote working - Hybrid model * 2 days per week on-site available across various UK locations * 4 months * Must be UK resident * Must be able to work without sponsorship - Essential Criteria * Significant previous experience of working at a Senior ServiceNow level, including Architecture and Developer * Strong solution design experience, including helping influence product roadmaps and s
        A Senior ServiceNow Developer is sought by our client to work with their team to deliver continuous improvement and development of the Roadmap for end users. The existing team is a mixture of their own resources and 3rd party suppliers. You will be a highly experienced ServiceNow consultant, with a proven track record in ServiceNow development, including certification and experience in implementing different ServiceNow implementation levels and components.. Key Details * INSIDE IR35 * Remote working - Hybrid model * 2 days per week on-site available across various UK locations * 4 months * Must be UK resident * Must be able to work without sponsorship - Essential Criteria * Significant previous experience of working at a Senior ServiceNow level, including Architecture and Developer * Strong solution design experience, including helping influence product roadmaps and s
        more
        NEWFEATURED
        Collaborate with Ops Tech to manage API use, system performance, and platform scalability. * Working knowledge of JavaScript or Python for API interactions for customizations.
        Collaborate with Ops Tech to manage API use, system performance, and platform scalability. * Working knowledge of JavaScript or Python for API interactions for customizations.
        more
        NEW
        Role & Responsibilities - Role Overview - As a Junior Backend Engineer at Grabyo; you will have exposure to the backend APIs and services that power the core of the Grabyo Platform. Some days, you might be part of the team behind key features like building markers in the Live clipping or AI-powered highlights workflows. Other days, you could contribute to evolving our architecture as we advance towards a scalable, microservices-based platform. Java, Spring, Go, Node.js, NoSQL, serverless architectures, microservices, Terraform, AWS SAM, DynamoDB, media processing, Terraform, AWS Lambda these are a few of the state-of-the-art techs you will be working with - To make sure you keep growing your knowledge around tech, we provide you with professional development opportunities like Hackathons, development budget and pair programming days to improve our automated testing cu
        Role & Responsibilities - Role Overview - As a Junior Backend Engineer at Grabyo; you will have exposure to the backend APIs and services that power the core of the Grabyo Platform. Some days, you might be part of the team behind key features like building markers in the Live clipping or AI-powered highlights workflows. Other days, you could contribute to evolving our architecture as we advance towards a scalable, microservices-based platform. Java, Spring, Go, Node.js, NoSQL, serverless architectures, microservices, Terraform, AWS SAM, DynamoDB, media processing, Terraform, AWS Lambda these are a few of the state-of-the-art techs you will be working with - To make sure you keep growing your knowledge around tech, we provide you with professional development opportunities like Hackathons, development budget and pair programming days to improve our automated testing cu
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        NEW

        Data Architect

        Independent Vetcare Ltd t/a Grove Lodge Veterinary Group
        UK
        Competitive
        At IVC Evidensia , were on a mission to improve the lives of animals and their owners by building the worlds best veterinary group. With over 2,500 locations globally, were investing in people, technology, and data to deliver exceptional care. Were undergoing a major digital transformation and data is at the heart of it. As our Data Architect , youll play a pivotal role in designing and delivering the data strategy that powers smarter decisions, enhances patient care, and enables cutting-edge AI initiatives. Why This Role Matters Youll be the technical authority driving how we manage and grow our data warehouse and BI capabilities. By aligning our data architecture with business goals, youll help unify insights across systems, improve reporting, and elevate the experience for our clients and their pets.
        At IVC Evidensia , were on a mission to improve the lives of animals and their owners by building the worlds best veterinary group. With over 2,500 locations globally, were investing in people, technology, and data to deliver exceptional care. Were undergoing a major digital transformation and data is at the heart of it. As our Data Architect , youll play a pivotal role in designing and delivering the data strategy that powers smarter decisions, enhances patient care, and enables cutting-edge AI initiatives. Why This Role Matters Youll be the technical authority driving how we manage and grow our data warehouse and BI capabilities. By aligning our data architecture with business goals, youll help unify insights across systems, improve reporting, and elevate the experience for our clients and their pets.
        more
        NEW

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        Lead Developer

        Halian Technology Limited
        SN1, Swindon
        From £60,000 to £70,000 per annum
        Halian Technologies are hiring on behalf of our fast-growing technology client that is looking for a Lead Developerto guide a dynamic and collaborative development team. * Line manage, mentor, and support a team of developers * Lead sprint ceremonies: standups, planning, retrospectives, and refinement - This is a leadership role which will include some hands-on development, ideal for someone who enjoys solving complex technical problems and leading others to success. Youll be leading software engineers through the full product lifecycle using Agile methodologies. This is a varied role where youll split your time between people leadership, scrum mastering, and active development using C#/.NET technologies. * Remove blockers and drive team progress in an Agile environment * Hands-on coding: design, develop, test, and re
        Halian Technologies are hiring on behalf of our fast-growing technology client that is looking for a Lead Developerto guide a dynamic and collaborative development team. * Line manage, mentor, and support a team of developers * Lead sprint ceremonies: standups, planning, retrospectives, and refinement - This is a leadership role which will include some hands-on development, ideal for someone who enjoys solving complex technical problems and leading others to success. Youll be leading software engineers through the full product lifecycle using Agile methodologies. This is a varied role where youll split your time between people leadership, scrum mastering, and active development using C#/.NET technologies. * Remove blockers and drive team progress in an Agile environment * Hands-on coding: design, develop, test, and re
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        Software Technical Lead (Basic SC Clearance) - Inside IR35 - £525 per day - Bristol every other week - JavaScript, typescript, react, node, AWS, Terraform - Exalto consulting are currently recruiting for a contract software technical lead, you would need to go to Bristol every other week for stakeholder meetings, this is inside IR35 paying £525 per day and need to have Basic SC Clearance * The technical stack is flexible for the right person. * Providing clear technical direction and mentorship to the team. * Applying sound judgment to make technical decisions. * Node.js, ReactJS, JavaScript, TypeScript, npm, AWS, Jenkins, Terraform, and PostgreSQL would be ideal - If you have the above experience and are looking for a new contract role to start ASAP
        Software Technical Lead (Basic SC Clearance) - Inside IR35 - £525 per day - Bristol every other week - JavaScript, typescript, react, node, AWS, Terraform - Exalto consulting are currently recruiting for a contract software technical lead, you would need to go to Bristol every other week for stakeholder meetings, this is inside IR35 paying £525 per day and need to have Basic SC Clearance * The technical stack is flexible for the right person. * Providing clear technical direction and mentorship to the team. * Applying sound judgment to make technical decisions. * Node.js, ReactJS, JavaScript, TypeScript, npm, AWS, Jenkins, Terraform, and PostgreSQL would be ideal - If you have the above experience and are looking for a new contract role to start ASAP
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        Lead UI Developer (Generative AI) - Contract | Glasgow | £420/day (Inside IR35) We're on the hunt for an experienced Lead UI Developer with a strong background in ReactJS and Generative AI integration to join a major financial services project. Lead the design and build of scalable, modern UI applications. Architect and deliver GenAI-powered features (intelligent assistants, content generation, adaptive UI). Mentor junior developers and drive best practices. Location: Glasgow (2-3 days on-site) Duration: Until June 2026 - Rate: £420/day (Inside IR35 via Umbrella) Requirement: Must be eligible for BPSS clearance - What You'll Do - Integrate with Next.js / Node.js APIs and GenAI endpoints. Ensure cross-
        Lead UI Developer (Generative AI) - Contract | Glasgow | £420/day (Inside IR35) We're on the hunt for an experienced Lead UI Developer with a strong background in ReactJS and Generative AI integration to join a major financial services project. Lead the design and build of scalable, modern UI applications. Architect and deliver GenAI-powered features (intelligent assistants, content generation, adaptive UI). Mentor junior developers and drive best practices. Location: Glasgow (2-3 days on-site) Duration: Until June 2026 - Rate: £420/day (Inside IR35 via Umbrella) Requirement: Must be eligible for BPSS clearance - What You'll Do - Integrate with Next.js / Node.js APIs and GenAI endpoints. Ensure cross-
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        We are seeking a Senior Software Engineer for LSEGs Data and Analytics in the Real Time Core and Data Distribution team. Shown experience as Senior Software Engineer (minimum 5 years). We strive for our engineers to work within agile teams that emphasize standard process and believe quality is everyones responsibility. Experience in using repositories for multi-person, multi-software versions pipelines of delivery. Use of AGILE Software Development techniques including TDD and/or BDD, and Atlassian toolsets. You will experience the critical role we have in helping to re-engineer the financial ecosystem to support and drive sustainable economic growth. LSEG (London Stock Exchange Group) is a leading global financial markets infrastructure and data provider. Our purpose
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        Senior Developer

        Oscar Associates (UK) Limited
        BS1, Bristol
        £550 - £600 per day
        A long-standing client of ours is looking for a user-focused Senior Developer to deliver the final phase of a large-scale SaaS platform. Contract Lead Full Stack Developer | Java / TypeScript / Node.js / Next.js | Fully Remote | £550-£600 p/day | Outside IR35 | 3-week contract - The project is currently around 60% complete, and you'll be responsible for leading the technical delivery of the remaining 40% to launch - You'll be joining an experienced product and design team, working closely with stakeholders and end users and must be able to engage with end users in a clear,non technical manner to ensure smooth delivery. If you have experience in AI-generated extracts/ authentication this will be great for you. Contract Details * Length: 3 weeks * Rate: £550-£600 p/day (Outside IR35) * Location: Fully Remote * Start Date: 25th August/1s
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        FEATURED

        Outsystems Developer

        Anson Mccade
        South East
        GBP 425.00 per week;GBP 475.00 per day
        Role: OutSystems Developer We are seeking an experienced OutSystems Developer for a 6-month contract engagement supporting a UK-based project. * OutSystems Associate Reactive Developer certification. * Develop and deliver high-quality low-code solutions using OutSystems. * 3+ years of OutSystems development in customer-facing or professional services roles. * Experience with microservices architecture in OutSystems applications. £425 Inside IR35 GBP - Hybrid WORKING - Location: Central London, Greater London - United Kingdom Type: Contract - Rate: £475/day (Inside IR35) Duration: 6 months - Security Clearance: Must be eligible for SC Clearance - Location: UK-based (remote/hybrid options may be discussed) This role offers the chance to deliver innovati
        Role: OutSystems Developer We are seeking an experienced OutSystems Developer for a 6-month contract engagement supporting a UK-based project. * OutSystems Associate Reactive Developer certification. * Develop and deliver high-quality low-code solutions using OutSystems. * 3+ years of OutSystems development in customer-facing or professional services roles. * Experience with microservices architecture in OutSystems applications. £425 Inside IR35 GBP - Hybrid WORKING - Location: Central London, Greater London - United Kingdom Type: Contract - Rate: £475/day (Inside IR35) Duration: 6 months - Security Clearance: Must be eligible for SC Clearance - Location: UK-based (remote/hybrid options may be discussed) This role offers the chance to deliver innovati
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        How many contract API jobs are there in Cardiff Business Park?
        There are 6 contract API jobs within 20 miles of Cardiff Business Park available on CWJobs right now.

        What other similar jobs are there to contract API jobs in Cardiff Business Park?
        As well as contract API jobs in Cardiff Business Park, you can find contract IT, Software Development, Architecture, amongst many others.