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        3 Permanent API jobs in Swansea + 20 miles

        Senior Software Developer

        Inspire People
        SA1, Swansea
        £49600 - £60800 per annum + 29% pension + Civil Service benefits
        Solid understanding of system design, API development and integration practices
        Solid understanding of system design, API development and integration practices

        AI Implementation Manager

        Interaction - Leeds
        Bridgend, Mid Glamorgan
        £35k - 55k per year
        Familiarity with AI/ML frameworks (e.g., OpenAI API, TensorFlow, PyTorch) and automation platforms.
        Familiarity with AI/ML frameworks (e.g., OpenAI API, TensorFlow, PyTorch) and automation platforms.
        NEW
        Your new company - Join a purpose-driven organisation at the heart of a thriving community, where technology is being harnessed to transform lives. This values-led housing provider is embarking on a bold digital transformation journey, with a clear mission to deliver outstanding services to residents through innovation and excellence. With a strong commitment to social impact and modernisation, this is a place where your work will truly matter. Your new role - As the Senior Software Developer, you'll be the cornerstone of a brand-new in-house development team. You'll lead the design and implementation of a cutting-edge, event-driven integration platform built on Microsoft Azure, working initially alongside expert consultants before taking full technical ownership. This is a rare opportunity to shape the future of digital services from the ground up-architecting scalab
        Your new company - Join a purpose-driven organisation at the heart of a thriving community, where technology is being harnessed to transform lives. This values-led housing provider is embarking on a bold digital transformation journey, with a clear mission to deliver outstanding services to residents through innovation and excellence. With a strong commitment to social impact and modernisation, this is a place where your work will truly matter. Your new role - As the Senior Software Developer, you'll be the cornerstone of a brand-new in-house development team. You'll lead the design and implementation of a cutting-edge, event-driven integration platform built on Microsoft Azure, working initially alongside expert consultants before taking full technical ownership. This is a rare opportunity to shape the future of digital services from the ground up-architecting scalab
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        NEW

        15 exact matches jobs are outside your preferred location

        Senior Software Developer

        VIQU IT Recruitment
        Llanvihangel Llantarnam, NP44 3HR
        £36k - 47k per year
        Newport - Hybrid £36,000 - £47,000 - VIQU are working in partnership with a leading organisation who are seeking a Senior Software Developer with a strong focus on integration and backend development. The successful Senior Software Developer will be experienced with a background in C# and .NET technologies who are capable at building configurable systems and reusable code libraries. * Design, develop and maintain reusable C# component libraries used for integrating third-party applications with internal systems * Build and configure instances of a Windows service engine to support message processing and data repository population * Develop, test, deploy and maintain backend integration services using .NET 8 and object-oriented principles * Collaborate closely with team members to support technical troubleshooting, component configuration and ongoing system maintenance
        Newport - Hybrid £36,000 - £47,000 - VIQU are working in partnership with a leading organisation who are seeking a Senior Software Developer with a strong focus on integration and backend development. The successful Senior Software Developer will be experienced with a background in C# and .NET technologies who are capable at building configurable systems and reusable code libraries. * Design, develop and maintain reusable C# component libraries used for integrating third-party applications with internal systems * Build and configure instances of a Windows service engine to support message processing and data repository population * Develop, test, deploy and maintain backend integration services using .NET 8 and object-oriented principles * Collaborate closely with team members to support technical troubleshooting, component configuration and ongoing system maintenance
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        Junior Developer Python

        Cloudavian
        Riverside, CF11 9BE
        From £28,000 to £32,000 per annum
        Were looking for a junior or graduate Python developer to join our team. You must be someone whos confident talking to customers, highly organised, and excited to learn and grow in a fast-paced environment. What Youll Do * Build and support Python-based tools and applications. * Work directly with customers - understand their needs and explain solutions clearly. * Join client calls, demos, and feedback sessions with confidence. * Manage and prioritise tasks to keep projects on track. * Use modern AI tools (e.g. Claude, ChatGPT) to boost your development work. What Were Looking For * Good Python skills and a passion for building software. * Excellent communication skills and confidence dealing with customers. * Strong organisation and time-management abilities. * Eagerness to learn and use AI tools. * Any experience with APIs, web frameworks, or Git is a bonus! Why Joi
        Were looking for a junior or graduate Python developer to join our team. You must be someone whos confident talking to customers, highly organised, and excited to learn and grow in a fast-paced environment. What Youll Do * Build and support Python-based tools and applications. * Work directly with customers - understand their needs and explain solutions clearly. * Join client calls, demos, and feedback sessions with confidence. * Manage and prioritise tasks to keep projects on track. * Use modern AI tools (e.g. Claude, ChatGPT) to boost your development work. What Were Looking For * Good Python skills and a passion for building software. * Excellent communication skills and confidence dealing with customers. * Strong organisation and time-management abilities. * Eagerness to learn and use AI tools. * Any experience with APIs, web frameworks, or Git is a bonus! Why Joi
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        NEW

        Senior Dynamics Developer

        Intellectual Property Office
        Rhiwderyn, NP10 8QQ
        From £47,766 to £58,575 per annum
        The IPO is a modern organisation which depends on its IT services to operate and innovate effectively. To provide up to date services to our customers systems need to be developed, improved, and maintained. This position plays a pivotal role in ensuring the core applications are reviewed and continually improved. You will need the appetite to learn new technologies and methodologies for delivering high quality IT services. In this role you will work within a multi-disciplined squad using several technologies to build enterprise grade services. You will be expected to be proactive and take accountability for the squad assigned deliveries. The role will also require the investigation, diagnosis and fix of any system issues. A Senior Developer is expected to contribute to the technical strategy for the department.
        The IPO is a modern organisation which depends on its IT services to operate and innovate effectively. To provide up to date services to our customers systems need to be developed, improved, and maintained. This position plays a pivotal role in ensuring the core applications are reviewed and continually improved. You will need the appetite to learn new technologies and methodologies for delivering high quality IT services. In this role you will work within a multi-disciplined squad using several technologies to build enterprise grade services. You will be expected to be proactive and take accountability for the squad assigned deliveries. The role will also require the investigation, diagnosis and fix of any system issues. A Senior Developer is expected to contribute to the technical strategy for the department.
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        NEW

        Lead Front End Developer

        Reed Technology
        NP1, Newport
        £64000 - £75000 per annum + Civil Servant Pension
        Location - Newport (20% on site) Will need to pass an SC Clearance (living in the UK for at least 5 years) A modern organisation which depends on its IT services to operate and innovate effectively. In order to provide up to date services to our customers both nationally and internationally systems need to be developed, improved and maintained. You will have the opportunity to work on the latest cutting edge cloud technologies, use modern delivery processes and work on innovative projects some including the use of AI and ML. Job description * Be responsible for the design, coding, testing and documentation of small scale to large, complex or mission critical applications and solutions in a cloud first environment * Build web based Front End interfaces interacting with RESTful APIs using React, Next JS and other web technologies
        Location - Newport (20% on site) Will need to pass an SC Clearance (living in the UK for at least 5 years) A modern organisation which depends on its IT services to operate and innovate effectively. In order to provide up to date services to our customers both nationally and internationally systems need to be developed, improved and maintained. You will have the opportunity to work on the latest cutting edge cloud technologies, use modern delivery processes and work on innovative projects some including the use of AI and ML. Job description * Be responsible for the design, coding, testing and documentation of small scale to large, complex or mission critical applications and solutions in a cloud first environment * Build web based Front End interfaces interacting with RESTful APIs using React, Next JS and other web technologies
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        NEW
        Role/Job Title: Software Engineer C++, C# .Net - Work Location: Edinburgh - Role type Permanent/Fixed Term/Contracting: Contracting - Mode of working Hybrid/Office based: Office Based - The Role - We are seeking an experienced and hands-on Software Engineer with skills in developing applications on C++, C# .Net and with a Utilities background. Your Responsibilities * Development of applications using C++, C# .Net for power utilities products - Your Profile * In-depth knowledge of C# .NET languages * Design, develop, and manage high-performance software applications using C# * Implement and optimize code for performance, security, and memory efficiency * Test and debug various .NET applications * Monitor and optimize the performance and responsiveness of .NET applications across multiple platforms and environments * Integrate third-party libraries, tools, and APIs into
        Role/Job Title: Software Engineer C++, C# .Net - Work Location: Edinburgh - Role type Permanent/Fixed Term/Contracting: Contracting - Mode of working Hybrid/Office based: Office Based - The Role - We are seeking an experienced and hands-on Software Engineer with skills in developing applications on C++, C# .Net and with a Utilities background. Your Responsibilities * Development of applications using C++, C# .Net for power utilities products - Your Profile * In-depth knowledge of C# .NET languages * Design, develop, and manage high-performance software applications using C# * Implement and optimize code for performance, security, and memory efficiency * Test and debug various .NET applications * Monitor and optimize the performance and responsiveness of .NET applications across multiple platforms and environments * Integrate third-party libraries, tools, and APIs into
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        NEW

        Software Engineer

        Inspire People
        UK
        £41100 - £44400 per annum + 29% pension + Civil Service benefits
        HM Land Registry (HMLR) are modernising the systems and services that underpin property ownership across England and Wales - some of the most valuable data in the UK economy. As a Software Developer, you'll play an important role in designing, building and supporting the digital services that help secure property rights and enable the housing market to function. Salary up to £44,400, 29% employer pension contribution plus full Civil Service benefits. Flexible, hybrid working from 14 office locations across the UK. Job Summary - You will join HMLR's Software Development Practice, part of the wider Digital, Data and Technology (DDaT) directorate. The practice includes Developers who work in multidisciplinary agile teams with product managers, delivery managers, testers, business analysts and user researchers.
        HM Land Registry (HMLR) are modernising the systems and services that underpin property ownership across England and Wales - some of the most valuable data in the UK economy. As a Software Developer, you'll play an important role in designing, building and supporting the digital services that help secure property rights and enable the housing market to function. Salary up to £44,400, 29% employer pension contribution plus full Civil Service benefits. Flexible, hybrid working from 14 office locations across the UK. Job Summary - You will join HMLR's Software Development Practice, part of the wider Digital, Data and Technology (DDaT) directorate. The practice includes Developers who work in multidisciplinary agile teams with product managers, delivery managers, testers, business analysts and user researchers.
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        Knowledge of SQL, JSON, API testing, and CI/CD integration.
        Knowledge of SQL, JSON, API testing, and CI/CD integration.
        NEWFEATURED
        In this critical role, youll develop and maintain REST API over serverless functions using TypeScript; youll also design and implement scalable PostgreSQL schemas and data models. Other organisations may call this role Software Engineer, Software Developer, Back End Software Engineer, Server-Side Developer, Full Stack Developer, or API Developer.
        In this critical role, youll develop and maintain REST API over serverless functions using TypeScript; youll also design and implement scalable PostgreSQL schemas and data models. Other organisations may call this role Software Engineer, Software Developer, Back End Software Engineer, Server-Side Developer, Full Stack Developer, or API Developer.
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        NEW
        Remote (UK, Netherlands, Germany) About Us - Studio 397 and Motorsport Games are the video game developer and publishers of Le Mans Ultimate the Official Video Game of the FIA World Endurance Championship and 24 Hours of Le Mans available now on Steam. We also run the popular rFactor 2 simulation title and have created an online matchmaking and player management system for racing games called RaceControl. We are a close-knit, passionate team committed to creating the most realistic motorsport simulations in the world. Our team works remotely, primarily across Europe, and we pride ourselves on technical excellence, collaboration, and innovation. The Role - We are seeking a Senior Console Developer to play a key role in developing the next generation of our technology for modern console platforms (PlayStation, Xbox).
        Remote (UK, Netherlands, Germany) About Us - Studio 397 and Motorsport Games are the video game developer and publishers of Le Mans Ultimate the Official Video Game of the FIA World Endurance Championship and 24 Hours of Le Mans available now on Steam. We also run the popular rFactor 2 simulation title and have created an online matchmaking and player management system for racing games called RaceControl. We are a close-knit, passionate team committed to creating the most realistic motorsport simulations in the world. Our team works remotely, primarily across Europe, and we pride ourselves on technical excellence, collaboration, and innovation. The Role - We are seeking a Senior Console Developer to play a key role in developing the next generation of our technology for modern console platforms (PlayStation, Xbox).
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        NEW

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        Senior Software Developer

        Spectrum It Recruitment Limited
        UK
        £70000 - £80000 per annum
        The Senior Software Developer will be responsible for full stack development with C# and React as part of the ongoing evolution of the company's core SaaS product as they evolve a traditional monolith architecture towards a modular monolith. Key experience * Extensive C# experience * SQL Server * React * TypeScript * CI/CD - Azure DevOps * MS Azure services * Azure AD B2C * Microservices architecture * Database design and management - If you are seeking a role of this nature please get in touch for more information. Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.
        The Senior Software Developer will be responsible for full stack development with C# and React as part of the ongoing evolution of the company's core SaaS product as they evolve a traditional monolith architecture towards a modular monolith. Key experience * Extensive C# experience * SQL Server * React * TypeScript * CI/CD - Azure DevOps * MS Azure services * Azure AD B2C * Microservices architecture * Database design and management - If you are seeking a role of this nature please get in touch for more information. Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.
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        A fast-growing sports tech company building high-performance, data-driven products for a rapidly expanding global user base are searching for a Senior Fullstack Engineer. * Mentor junior engineers Full Stack - Ruby on Rails, React - Up to £85k DOE. Fully Remote - must be UK based - As part of a cross-functional Product Team, you'll work closely with Product, Design, and Customer Success to shape the future of the platform-not just build it. You'll have a real voice in technical decisions, mentor others, and engage directly with customers to build tools they love. Tech Stack: Ruby on Rails, React, React Native, GraphQL?? * Build and maintain fullstack features using Rails and React Native * Collaborate across teams to deliver customer-centric solutions * Write clear, maintainable code and documentation * Talk directly
        A fast-growing sports tech company building high-performance, data-driven products for a rapidly expanding global user base are searching for a Senior Fullstack Engineer. * Mentor junior engineers Full Stack - Ruby on Rails, React - Up to £85k DOE. Fully Remote - must be UK based - As part of a cross-functional Product Team, you'll work closely with Product, Design, and Customer Success to shape the future of the platform-not just build it. You'll have a real voice in technical decisions, mentor others, and engage directly with customers to build tools they love. Tech Stack: Ruby on Rails, React, React Native, GraphQL?? * Build and maintain fullstack features using Rails and React Native * Collaborate across teams to deliver customer-centric solutions * Write clear, maintainable code and documentation * Talk directly
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        Copello are working with a leading defence technology partner seeking a Principal Software Engineer to join their Human Machine Interface (HMI) and Cyber team, developing cutting-edge laser defence systems for the Royal Navy. Youll take a leading role in the technical delivery of complex software solutions, mentoring junior engineers and ensuring high standards across design, implementation, and integration. * Proven experience delivering complex software systems end-to-end * Solid understanding of the software development lifecycle - Desirable experience: OS lockdown, software security, HMI development, or automated testing. Location:Bristol, On-site, 5 days per week (due to project classification) Salary: Up to £64,000 + bonus & excellent benefits - Clearance: British Citizen or Dua
        Copello are working with a leading defence technology partner seeking a Principal Software Engineer to join their Human Machine Interface (HMI) and Cyber team, developing cutting-edge laser defence systems for the Royal Navy. Youll take a leading role in the technical delivery of complex software solutions, mentoring junior engineers and ensuring high standards across design, implementation, and integration. * Proven experience delivering complex software systems end-to-end * Solid understanding of the software development lifecycle - Desirable experience: OS lockdown, software security, HMI development, or automated testing. Location:Bristol, On-site, 5 days per week (due to project classification) Salary: Up to £64,000 + bonus & excellent benefits - Clearance: British Citizen or Dua
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        Senior Software Engineer

        Sanderson Recruitment
        South West
        £60000 - £65000 per annum
        As a Senior Software Engineer, you will play a pivotal role in the development, maintenance, and evolution of key digital platforms, working across the full technology stack to deliver secure, scalable, and performant solutions. Sanderson are working with a leading financial services organisation that puts customers at the centre of its business. The company is going through a period of impressive growth across their technology team, creating opportunity to work on challenging projects and contribute to the development of its digital platforms. * Collaborate with cross-functional teams to deliver high-quality digital client journeys. * Drive technical direction to enable modern, scalable, secure, and high-performing applications. * Write high-quality, tested, secure, and performant code, and create automated tests for all changes.
        As a Senior Software Engineer, you will play a pivotal role in the development, maintenance, and evolution of key digital platforms, working across the full technology stack to deliver secure, scalable, and performant solutions. Sanderson are working with a leading financial services organisation that puts customers at the centre of its business. The company is going through a period of impressive growth across their technology team, creating opportunity to work on challenging projects and contribute to the development of its digital platforms. * Collaborate with cross-functional teams to deliver high-quality digital client journeys. * Drive technical direction to enable modern, scalable, secure, and high-performing applications. * Write high-quality, tested, secure, and performant code, and create automated tests for all changes.
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        Software Engineer

        Alexander Mae (Bristol) Ltd
        BS8, Bristol
        From £30,000 to £35,000 per annum
        On their behalf, we are looking for a Software Engineer with an AI integration specialisation. Our client is at the cutting edge of development in software solutions for healthcare learning. Through working with their clients needs, they specialise in high stakes summative exam software as well as course management systems. Are you looking for a challenging and rewarding career move in software development? As part of the development team, you will be responsible for translating high-level AI concepts into functional prototypes, working closely with stakeholders to refine solutions, and collaborating with product engineers to evolve validated prototypes into robust, production-ready features that integrate seamlessly into the main codebase. For this role our client is looking for an i
        On their behalf, we are looking for a Software Engineer with an AI integration specialisation. Our client is at the cutting edge of development in software solutions for healthcare learning. Through working with their clients needs, they specialise in high stakes summative exam software as well as course management systems. Are you looking for a challenging and rewarding career move in software development? As part of the development team, you will be responsible for translating high-level AI concepts into functional prototypes, working closely with stakeholders to refine solutions, and collaborating with product engineers to evolve validated prototypes into robust, production-ready features that integrate seamlessly into the main codebase. For this role our client is looking for an i
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        Role: Senior Backend Engineer They are looking for a Senior Backend Developer to come on board and really make an impact. You will work alongside a small (but growing!) talented Backend Engineer team as part of a collaborative engineering team. * 8+ years experience as a backend engineer Youll have the opportunity to help shape the evolution of their backend architecture while contributing to a supportive environment that values innovation and quality. * Take shared ownership of our backend architecture, ensuring performance, scalability, and reliability. * Work with DevOps team to improve monitoring, supportability and reliability of backend services - Location: UK - Salary: Competitive - Type Permanent - Myn is an A
        Role: Senior Backend Engineer They are looking for a Senior Backend Developer to come on board and really make an impact. You will work alongside a small (but growing!) talented Backend Engineer team as part of a collaborative engineering team. * 8+ years experience as a backend engineer Youll have the opportunity to help shape the evolution of their backend architecture while contributing to a supportive environment that values innovation and quality. * Take shared ownership of our backend architecture, ensuring performance, scalability, and reliability. * Work with DevOps team to improve monitoring, supportability and reliability of backend services - Location: UK - Salary: Competitive - Type Permanent - Myn is an A
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        Software Developer (Enterprise SAAS / .NET / MVVM Frameworks)

        Ernest Gordon Recruitment
        SA1, Swansea
        £42000 - £46000 per annum + Hybrid + 25 Days Holiday + 11% Pension
        Are you a .NET Developer with MVVM Framework knowledge (Knockout, React, Vue or similar) looking to work on an enterprise product for a global business that employee 20,000 people globally? This role would suit a Software Developer with .NET, C# and MVVM Framework knowledge looking to build Enterprise software for globally recognised business that offers stability and great benefits. * Software Developer Software, Dev, Developer, Vue, Knockout, SAAS, .NET, Framework, C#. £42,000 - £46,000 + Hybrid + 25 Days Holiday + 11% Pension + Healthcare - Swansea, Wales - In this role you will be building and supporting an enterprise product for highly regulated and industrial customers. This role will include a mix of backend (.NET, SQL), web UI
        Are you a .NET Developer with MVVM Framework knowledge (Knockout, React, Vue or similar) looking to work on an enterprise product for a global business that employee 20,000 people globally? This role would suit a Software Developer with .NET, C# and MVVM Framework knowledge looking to build Enterprise software for globally recognised business that offers stability and great benefits. * Software Developer Software, Dev, Developer, Vue, Knockout, SAAS, .NET, Framework, C#. £42,000 - £46,000 + Hybrid + 25 Days Holiday + 11% Pension + Healthcare - Swansea, Wales - In this role you will be building and supporting an enterprise product for highly regulated and industrial customers. This role will include a mix of backend (.NET, SQL), web UI
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        Frequently Asked Questions

        How many permanent API jobs are there in Swansea?
        There are 3 permanent API jobs within 20 miles of Swansea available on CWJobs right now.

        What other similar jobs are there to permanent API jobs in Swansea?
        As well as permanent API jobs in Swansea, you can find permanent IT, Software Development, Testing, amongst many others.