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        Cardiff
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        1 Contract API job in Wales + 20 miles

        Fullstack TypeScript Developer

        RWS GROUP
        Cardiff, South Glamorgan
        Competitive
        We are seeking experienced Full Stack TypeScript Developer to join our team and help build innovative, cross-platform applications using a unified architecture. You'll work across the stack - developing responsive frontends in React, building robust RESTful/GraphQL APIs with Node.js and Fastify, and creating desktop/mobile apps using Electron and React Native. Our unified approach ensures code reusability and consistency across all platforms. Familiarity with XSL for data transformation is a plus. We're especially keen to hear from candidates who have real-world experience with vibe coding - using AI tools like Claude, Cursor, or CoPilot to build production-grade software faster and smarter. This is a remote job with regular travel to Bristol. About Contenta - Contenta is part of RWSs content management platform focused on the Aerospace & Defence market.
        We are seeking experienced Full Stack TypeScript Developer to join our team and help build innovative, cross-platform applications using a unified architecture. You'll work across the stack - developing responsive frontends in React, building robust RESTful/GraphQL APIs with Node.js and Fastify, and creating desktop/mobile apps using Electron and React Native. Our unified approach ensures code reusability and consistency across all platforms. Familiarity with XSL for data transformation is a plus. We're especially keen to hear from candidates who have real-world experience with vibe coding - using AI tools like Claude, Cursor, or CoPilot to build production-grade software faster and smarter. This is a remote job with regular travel to Bristol. About Contenta - Contenta is part of RWSs content management platform focused on the Aerospace & Defence market.
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        18 exact matches jobs are outside your preferred location

        • Strong backend engineering background delivering high-scale systems with AI components (Python/Java, RAG frameworks, vector databases, API engineering).
        • Strong backend engineering background delivering high-scale systems with AI components (Python/Java, RAG frameworks, vector databases, API engineering).
        more
        We are looking for a highly skilled Lead Business Analyst / Product Owner to lead the design, development, and delivery of API solutions that enable seamless integration across our digital ecosystem. This hybrid role combines strategic product ownership with hands-on business analysis to ensure our API platform meets business needs, enhances interoperability, and supports scalable growth. * Define and own the API product backlog, aligning with business objectives and technology strategy. * Act as the voice of the customer for API consumers, ensuring usability and developer experience. * Gather, analyze, and document functional and non-functional requirements for API development. * Collaborate with architects and engineering teams to design API specifications, JSON, XM
        We are looking for a highly skilled Lead Business Analyst / Product Owner to lead the design, development, and delivery of API solutions that enable seamless integration across our digital ecosystem. This hybrid role combines strategic product ownership with hands-on business analysis to ensure our API platform meets business needs, enhances interoperability, and supports scalable growth. * Define and own the API product backlog, aligning with business objectives and technology strategy. * Act as the voice of the customer for API consumers, ensuring usability and developer experience. * Gather, analyze, and document functional and non-functional requirements for API development. * Collaborate with architects and engineering teams to design API specifications, JSON, XM
        more
        NEWPREMIUM
        My client are seeking a JavaDeveloper with strong expertise in Apache Kafka, Node.js, and AWS cloud services. The role involves designing and implementing scalable, event-driven architectures, building microservices, and deploying solutions in a cloud-native environment. Essential Skills & Experience * Strong commercial experience with Java (core + modern frameworks) * Hands-on experience with Node.js * Proven background delivering solutions in AWS environments * Understanding of microservices, APIs and distributed systems * Experience working in Agile / DevOps environments * Familiarity with CI/CD pipelines and cloud-native tooling * Experience with Kafka Desirable * Previous experience working in public-sector or secure environments
        My client are seeking a JavaDeveloper with strong expertise in Apache Kafka, Node.js, and AWS cloud services. The role involves designing and implementing scalable, event-driven architectures, building microservices, and deploying solutions in a cloud-native environment. Essential Skills & Experience * Strong commercial experience with Java (core + modern frameworks) * Hands-on experience with Node.js * Proven background delivering solutions in AWS environments * Understanding of microservices, APIs and distributed systems * Experience working in Agile / DevOps environments * Familiarity with CI/CD pipelines and cloud-native tooling * Experience with Kafka Desirable * Previous experience working in public-sector or secure environments
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        Java Developer 12 month Contract - 1 Stage Interview

        Stealth IT Consulting Limited
        UK
        Up to £400 per day £400 (Inside IR35) Per Day
        Role Overview - We are seeking a skilled Java Developer with strong experience across Java, Node.js, and AWS to support large-scale digital transformation projects within a secure public-sector environment. You will join a collaborative engineering team focused on delivering secure, scalable and high-quality services. Key Responsibilities * Develop, maintain and optimise backend services using Java and Node.js * Build and deploy applications on AWS following best practices * Work within an Agile delivery team, contributing to sprints, ceremonies and code reviews * Collaborate with architects, product owners and other engineers to deliver high-impact features * Ensure code quality, security and performance are upheld * Support CI/CD processes, testing and automation - Essential Skills & Experience * Strong commercial experience with Java (core + modern frameworks)
        Role Overview - We are seeking a skilled Java Developer with strong experience across Java, Node.js, and AWS to support large-scale digital transformation projects within a secure public-sector environment. You will join a collaborative engineering team focused on delivering secure, scalable and high-quality services. Key Responsibilities * Develop, maintain and optimise backend services using Java and Node.js * Build and deploy applications on AWS following best practices * Work within an Agile delivery team, contributing to sprints, ceremonies and code reviews * Collaborate with architects, product owners and other engineers to deliver high-impact features * Ensure code quality, security and performance are upheld * Support CI/CD processes, testing and automation - Essential Skills & Experience * Strong commercial experience with Java (core + modern frameworks)
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        Looking for a Technical Business Analyst to support squads across a high-profile digital environment. You'll work closely with technical and business teams, shaping requirements and supporting delivery from discovery through to live service. The role requires someone confident engaging directly with technical and business stakeholders, translating business needs into technical requirements, and supporting squads through the full lifecycle. * Gather and refine requirements with stakeholders * Translate discovery outputs into clear epics and user stories * Work with architects and developers to validate technical feasibility * Understand RESTful APIs, data flows, and integration patterns * Contribute to agile ceremonies and support iterative delivery * Work across legacy and modern service environments * Proven experience as a Technical BA within digital or engineering
        Looking for a Technical Business Analyst to support squads across a high-profile digital environment. You'll work closely with technical and business teams, shaping requirements and supporting delivery from discovery through to live service. The role requires someone confident engaging directly with technical and business stakeholders, translating business needs into technical requirements, and supporting squads through the full lifecycle. * Gather and refine requirements with stakeholders * Translate discovery outputs into clear epics and user stories * Work with architects and developers to validate technical feasibility * Understand RESTful APIs, data flows, and integration patterns * Contribute to agile ceremonies and support iterative delivery * Work across legacy and modern service environments * Proven experience as a Technical BA within digital or engineering
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        NEW
        Job Title: Product Security Architect (Contract) Location: UK-based / Remote - Contract: 3 months initially, Outside IR35 - Why Apply? This is an opportunity to play a key role in shaping Product Security for an international technology organisation. The role offers exposure to a federated environment across multiple business units, providing strategic influence and hands on technical impact. * Define, lead, and evolve a group-wide Product Security and Secure SSDLC strategy across all business units. * Assess current AppSec capabilities, identify gaps, and implement practical, scalable improvements. * Collaborate with Product Architects, engineering, and security teams to integrate security into GitHub, CI/CD pipelines, and development workflows. * Provide architecture guidance and implement secure coding practices, threat modelling, and security tooling.
        Job Title: Product Security Architect (Contract) Location: UK-based / Remote - Contract: 3 months initially, Outside IR35 - Why Apply? This is an opportunity to play a key role in shaping Product Security for an international technology organisation. The role offers exposure to a federated environment across multiple business units, providing strategic influence and hands on technical impact. * Define, lead, and evolve a group-wide Product Security and Secure SSDLC strategy across all business units. * Assess current AppSec capabilities, identify gaps, and implement practical, scalable improvements. * Collaborate with Product Architects, engineering, and security teams to integrate security into GitHub, CI/CD pipelines, and development workflows. * Provide architecture guidance and implement secure coding practices, threat modelling, and security tooling.
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        The ideal candidate will have strong experience in API development, microservices architecture, CI/CD pipelines, and containerization. Additional Skills: API development, microservices, CI/CD pipelines, containerization (Docker/Kubernetes), Leadership, Greenfield development experience
        The ideal candidate will have strong experience in API development, microservices architecture, CI/CD pipelines, and containerization. Additional Skills: API development, microservices, CI/CD pipelines, containerization (Docker/Kubernetes), Leadership, Greenfield development experience
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        Build your future with Sovos. If you're seeking a career where innovation meets impact, you've come to the right place. As a global leader, Sovos is transforming tax compliance from a business requirement to a force for growth while revolutionising how businesses navigate the ever-changing regulatory landscape. At Sovos, we're dedicated to more than just solving compliance challenges we're committed to making a positive and lasting difference in everything we do. Our teams operate on the modern edge of digital technology, working not only to solve complex business challenges but also to enrich our personal, professional, and local communities. Our purpose-built systems provide the tools you need to thrive in a world where governments demand increased visibility, faster reporting and greater control over business processes. Excited about the possibilities? So are we!
        Build your future with Sovos. If you're seeking a career where innovation meets impact, you've come to the right place. As a global leader, Sovos is transforming tax compliance from a business requirement to a force for growth while revolutionising how businesses navigate the ever-changing regulatory landscape. At Sovos, we're dedicated to more than just solving compliance challenges we're committed to making a positive and lasting difference in everything we do. Our teams operate on the modern edge of digital technology, working not only to solve complex business challenges but also to enrich our personal, professional, and local communities. Our purpose-built systems provide the tools you need to thrive in a world where governments demand increased visibility, faster reporting and greater control over business processes. Excited about the possibilities? So are we!
        more
        Define Architectural Strategy: Use strong system and API design skills to make decisive architectural choices, ensuring our solutions are robust, scalable, and efficient
        Define Architectural Strategy: Use strong system and API design skills to make decisive architectural choices, ensuring our solutions are robust, scalable, and efficient
        more
        Intetics Inc., a global technology company providing custom software application development, distributed professional teams, software product quality assessment, and all-things-digital solutions, is looking for a Technical Support Engineer to join our dynamic team. 9:00 - 18:00 in UK time zone - 9:00 - 18:00 in US EAST time zone - What You Will Do * Help customers by answering their toughest technical questions * Provide technical support to customers using email, chat, and Zoom * Handle multiple concurrent issues with varying severity, making sure that they are responded to within the established SLAs * Focus on accelerating investigations and minimizing support ticket resolution times via live Zoom calls * Troubleshoot logs to identify errors/exceptions and their root cause * Act as Incident Commander during service incidents and maintain updates on the Status page
        Intetics Inc., a global technology company providing custom software application development, distributed professional teams, software product quality assessment, and all-things-digital solutions, is looking for a Technical Support Engineer to join our dynamic team. 9:00 - 18:00 in UK time zone - 9:00 - 18:00 in US EAST time zone - What You Will Do * Help customers by answering their toughest technical questions * Provide technical support to customers using email, chat, and Zoom * Handle multiple concurrent issues with varying severity, making sure that they are responded to within the established SLAs * Focus on accelerating investigations and minimizing support ticket resolution times via live Zoom calls * Troubleshoot logs to identify errors/exceptions and their root cause * Act as Incident Commander during service incidents and maintain updates on the Status page
        more
        Team: Engineering Country: United Kingdom - Remote Work Available: Yes - Veeva Systems is a mission-driven organization and pioneer in industry cloud, helping life sciences companies bring therapies to patients faster. As one of the fastest-growing SaaS companies in history, we surpassed $2B in revenue in our last fiscal year with extensive growth potential ahead. At the heart of Veeva are our values: Do the Right Thing, Customer Success, Employee Success, and Speed. We're not just any public company we made history in 2021 by becoming a public benefit corporation (PBC), legally bound to balancing the interests of customers, employees, society, and investors. As a Work Anywhere company, we support your flexibility to work from home or in the office, so you can thrive in your ideal environment. Join us in transforming the life sciences industry, committed to making a p
        Team: Engineering Country: United Kingdom - Remote Work Available: Yes - Veeva Systems is a mission-driven organization and pioneer in industry cloud, helping life sciences companies bring therapies to patients faster. As one of the fastest-growing SaaS companies in history, we surpassed $2B in revenue in our last fiscal year with extensive growth potential ahead. At the heart of Veeva are our values: Do the Right Thing, Customer Success, Employee Success, and Speed. We're not just any public company we made history in 2021 by becoming a public benefit corporation (PBC), legally bound to balancing the interests of customers, employees, society, and investors. As a Work Anywhere company, we support your flexibility to work from home or in the office, so you can thrive in your ideal environment. Join us in transforming the life sciences industry, committed to making a p
        more

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        The Software Architect is responsible for the definition of a feasible, maintainable and scalable software architecture consistent with the solution/system architecture. The candidate will report to the portfolio Chief software architect and Head of SW Delivery, with in feeds to senior management, customers, engineering delivery managers, project managers, and developers. In this particular instance (due to the small scale of the team), the SW Architect will be expected to participate in some of the SW development activities. Applications for an exciting role are now open in our Underwater Systems Business Line: Senior Software Engineer / Architect - Linux & C++ & Python - Due to business growth and increased demand, an additional Senior Software Engi
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        Senior Backend Engineer TypeScript Node API

        Client Server
        The City, City of London (EC4), EC2V
        £85000 - £100000 per annum + shares + benefits
        As a Senior Backend Engineer you will collaborate with a small team of technologists and successful entrepreneurs to design and implement intelligent solutions to business needs, with a focus on TypeScript and Node backend systems but also with exposure to and occasional frontend work. Senior Backend Engineer / Developer (TypeScript Node API) London / WFH to £100k - Apply now to find out more about this Senior Backend Engineer / Developer (TypeScript Node.js) opportunity. Are you a senior technologist looking for an opportunity to progress your career in a hands-on role where you can make an impact? * You have strong TypeScript and Node.js backend development skills - Python is also desirable for data related work - You could be joining a scaling tech company that has
        As a Senior Backend Engineer you will collaborate with a small team of technologists and successful entrepreneurs to design and implement intelligent solutions to business needs, with a focus on TypeScript and Node backend systems but also with exposure to and occasional frontend work. Senior Backend Engineer / Developer (TypeScript Node API) London / WFH to £100k - Apply now to find out more about this Senior Backend Engineer / Developer (TypeScript Node.js) opportunity. Are you a senior technologist looking for an opportunity to progress your career in a hands-on role where you can make an impact? * You have strong TypeScript and Node.js backend development skills - Python is also desirable for data related work - You could be joining a scaling tech company that has
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        PREMIUM
        We are seeking a highly skilled Senior Software Developer to join my client's team. * Design, develop, and maintain software solutions using AWS services and serverless architectures. * Strong understanding of software development lifecycle and agile methodologies. The ideal candidate will have strong experience in designing, developing, and maintaining cloud-native applications and infrastructure. You will work closely with cross-functional teams to deliver secure, scalable, and efficient solutions, while ensuring best practices and continuity through documentation and peer reviews. BPSS (Baseline Personnel Security Standard) Level 4 Enable * Implement containerized applications using EKS and manage orchestration. * Develop and maintain Infrastructure as Code (IaC) using Terraform and Ansible. * Build and optimize CI
        We are seeking a highly skilled Senior Software Developer to join my client's team. * Design, develop, and maintain software solutions using AWS services and serverless architectures. * Strong understanding of software development lifecycle and agile methodologies. The ideal candidate will have strong experience in designing, developing, and maintaining cloud-native applications and infrastructure. You will work closely with cross-functional teams to deliver secure, scalable, and efficient solutions, while ensuring best practices and continuity through documentation and peer reviews. BPSS (Baseline Personnel Security Standard) Level 4 Enable * Implement containerized applications using EKS and manage orchestration. * Develop and maintain Infrastructure as Code (IaC) using Terraform and Ansible. * Build and optimize CI
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        My client is seeking an experienced Senior Software Developer with BPSS clearance to join a high-profile project. About the Role - You will be responsible for designing, developing, and maintaining cloud-native applications and infrastructure, ensuring best practices and continuity across the team. Key Responsibilities * Develop and maintain AWS-based solutions (Serverless, EC2, SQS). * Implement containerized applications using EKS. * Manage Infrastructure as Code with Terraform and Ansible. * Build and optimize CI/CD pipelines using GitLab. * Write and maintain code in Node.js, Bash, and Python. * Configure API gateways and reverse proxies with Kong (CE/EE) and Nginx. * Implement monitoring and alerting using Prometheus, Grafana, and Alert Manager. * Conduct peer/code reviews and document best practices. Required Skills * AWS (Serverless, EC2, SQS)
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        React Native Engineer

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        React Native Developer - Contract - Outside IR35 - We're supporting our client in Edinburgh City Centre as they begin the first phase of an exciting greenfield product build, and we're looking to engage several React Native Developers to join the team. * Build high-quality mobile features using React Native for a brand-new application. * Strong practical experience with React Native and modern JavaScript & TypeScript. * Experience with REST APIs, state management, and common React Native libraries. * Collaborate closely with designers, backend engineers, and product stakeholders. Multiple positions available - This is a great opportunity to get involved at the very start of a long-term programme of work, influence ear
        React Native Developer - Contract - Outside IR35 - We're supporting our client in Edinburgh City Centre as they begin the first phase of an exciting greenfield product build, and we're looking to engage several React Native Developers to join the team. * Build high-quality mobile features using React Native for a brand-new application. * Strong practical experience with React Native and modern JavaScript & TypeScript. * Experience with REST APIs, state management, and common React Native libraries. * Collaborate closely with designers, backend engineers, and product stakeholders. Multiple positions available - This is a great opportunity to get involved at the very start of a long-term programme of work, influence ear
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        What is the average salary for API in Wales?

        Average salary per year
        £42,499

        The average salary for a API in Wales is £42,499. API in Wales salaries range from £32,499 to £52,499.

        Frequently Asked Questions

        How many contract API jobs are there in Wales?
        There are 1 contract API jobs within 20 miles of Wales available on CWJobs right now.

        What other similar jobs are there to contract API jobs in Wales?
        As well as contract API jobs in Wales, you can find contract Qa Automation, Quality Assurance, QA Analyst, amongst many others.