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        25 Permanent API jobs in Marshgate + 20 miles

        117 exact matches jobs are outside your preferred location

        Senior Embedded Android Developer

        TECHNOLOGY RESOURCING LIMITED
        Oxford (OX1)
        From £80,000 to £95,000 per annum Hybrid working & Many additional ben
        API integration experience.
        API integration experience.
        Experience with API development and integration (RESTful services)
        Experience with API development and integration (RESTful services)
        FEATURED
        We are now looking for a Automation Tester to to design, implement, and maintain automated UI and API tests supporting continuous deployment.
        We are now looking for a Automation Tester to to design, implement, and maintain automated UI and API tests supporting continuous deployment.
        more
        Thales people architect identity management and data protection solutions at the heart of digital security. Business and governments rely on us to bring trust to the billons of digital interactions they have with people. Our technologies and services help banks exchange funds, people cross borders, energy become smarter and much more. More than 30,000 organizations already rely on us to verify the identities of people and things, grant access to digital services, analyze vast quantities of information and encrypt data to make the connected world more secure. Together we offer fantastic opportunities for committed employees to learn and develop their career with us. At Thales UK, we research, develop, and supply technology and services that impact the lives of millions of people each day to make life better, and keep us safer.
        Thales people architect identity management and data protection solutions at the heart of digital security. Business and governments rely on us to bring trust to the billons of digital interactions they have with people. Our technologies and services help banks exchange funds, people cross borders, energy become smarter and much more. More than 30,000 organizations already rely on us to verify the identities of people and things, grant access to digital services, analyze vast quantities of information and encrypt data to make the connected world more secure. Together we offer fantastic opportunities for committed employees to learn and develop their career with us. At Thales UK, we research, develop, and supply technology and services that impact the lives of millions of people each day to make life better, and keep us safer.
        more
        This is a great time for a talented full-stack C# Software Developer, with skills in both web and desktop development to join an established, niche software house, based just outside Witney, West Oxfordshire. The Role - The C# Software Developer will be joining a company that is well-established with a strong product range (mission-critical, browser and desktop-based software developed predominantly in C#, ASP.NET MVC, .NET Core, JavaScript and SQL Server) used by market leading companies across the globe. In addition to adding new functionality, the C# Software Developer will design, build, and maintain production-grade services, including defining APIs, implementing business logic, managing data access, and ensuring reliability through monitoring, logging, testing, and deployment. Working fully onsite in beautiful offices in the heart of the countryside, the C# Soft
        This is a great time for a talented full-stack C# Software Developer, with skills in both web and desktop development to join an established, niche software house, based just outside Witney, West Oxfordshire. The Role - The C# Software Developer will be joining a company that is well-established with a strong product range (mission-critical, browser and desktop-based software developed predominantly in C#, ASP.NET MVC, .NET Core, JavaScript and SQL Server) used by market leading companies across the globe. In addition to adding new functionality, the C# Software Developer will design, build, and maintain production-grade services, including defining APIs, implementing business logic, managing data access, and ensuring reliability through monitoring, logging, testing, and deployment. Working fully onsite in beautiful offices in the heart of the countryside, the C# Soft
        more
        Swindon (Hybrid - 3 days per-week) £55,000 - £65,000 + Bonus + Progression + Pension - An excellent opportunity awaits a Software Developer with strong PHP experience to join a growing technology-first business. The role offers technical variety, ownership and clear progression opportunities. This company is an established but expanding B2B business, with technology as its key differentiator they're looking to further grow and diversify their SaaS solutions offering. In this role, you'll take ownership of both new and existing systems, maintaining legacy code where needed while leading the design and development of new solutions. You'll work closely with the Head of Software to align on technical direction, while taking the hands-on lead in building and improving Laravel-based applications, managing APIs and third-party integrations.
        Swindon (Hybrid - 3 days per-week) £55,000 - £65,000 + Bonus + Progression + Pension - An excellent opportunity awaits a Software Developer with strong PHP experience to join a growing technology-first business. The role offers technical variety, ownership and clear progression opportunities. This company is an established but expanding B2B business, with technology as its key differentiator they're looking to further grow and diversify their SaaS solutions offering. In this role, you'll take ownership of both new and existing systems, maintaining legacy code where needed while leading the design and development of new solutions. You'll work closely with the Head of Software to align on technical direction, while taking the hands-on lead in building and improving Laravel-based applications, managing APIs and third-party integrations.
        more

        Lead Developer

        Intellectual Property Office
        Newport (NP10)
        From £66,162 to £77,888 per annum £19,167 towards membership of the C
        Pleasenote:Applicants should review all aspects of this advert to ensure a thorough understanding. If reviewing via a screen reader, please note that the Job summary, Job description, Person specification, Benefits and Things you need to know sections have been emphasised - The IPO is an 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 key role in ensuring the Legacy Existing Systems vertical within IT, continues to be able to support these aging and complex legacy systems. This is a challenging role as the post holder must be able to balance complex maintenance commitments of the legacy estate with new initiatives, and conflicting demands.
        Pleasenote:Applicants should review all aspects of this advert to ensure a thorough understanding. If reviewing via a screen reader, please note that the Job summary, Job description, Person specification, Benefits and Things you need to know sections have been emphasised - The IPO is an 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 key role in ensuring the Legacy Existing Systems vertical within IT, continues to be able to support these aging and complex legacy systems. This is a challenging role as the post holder must be able to balance complex maintenance commitments of the legacy estate with new initiatives, and conflicting demands.
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        Database Engineer

        Grundon
        Wallingford, Oxfordshire, OX10 6LX
        up to 40k DOE
        At Grundon, we are on the lookout for a dynamic, passionate, and driven individual to join our Data team based in Benson. Reporting into the Head of IT/ Finance Director you will play a key role in driving our mission forward managing and optimising the organisation’s data warehouse to ensure high performance, reliability, and accessibility. This role will progressively encompass the design and development of a new data warehouse, along with the structured oversight of its migration process. Working closely within a cross-functional team, you will help translate business requirements into effective data solutions that drive informed, data-driven decision-making across the organisation. Please note as part of this role you will be required to attend to the office a minimum of 3 days each week - What will you do
        At Grundon, we are on the lookout for a dynamic, passionate, and driven individual to join our Data team based in Benson. Reporting into the Head of IT/ Finance Director you will play a key role in driving our mission forward managing and optimising the organisation’s data warehouse to ensure high performance, reliability, and accessibility. This role will progressively encompass the design and development of a new data warehouse, along with the structured oversight of its migration process. Working closely within a cross-functional team, you will help translate business requirements into effective data solutions that drive informed, data-driven decision-making across the organisation. Please note as part of this role you will be required to attend to the office a minimum of 3 days each week - What will you do
        more
        FEATURED

        Data Engineer

        Neptune (Europe) Ltd
        Freshbrook, Swindon (SN5), SN5 8YG
        Competitive plus benefits
        At Neptune, we believe great technology starts with great people - and great decisions start with great data. From managing stock and inventory to understanding our customers, data drives everything we do. We're looking for a Data Engineer to help shape how we collect, structure, and use data across the business. You'll play a key role in delivering reliable, high-quality datasets that power smarter, faster decisions every day. This is a hands-on role where you'll design and maintain the data pipelines, integrations, and platforms that keep Neptune's data accurate, accessible, and secure. Your Key Responsibilities * Design, build, and maintain robust ETL pipelines to efficiently extract, transform, and load data from multiple sources. * Develop and optimise SQL queries, stored procedures, and database scripts to deliver high-performance data processing.
        At Neptune, we believe great technology starts with great people - and great decisions start with great data. From managing stock and inventory to understanding our customers, data drives everything we do. We're looking for a Data Engineer to help shape how we collect, structure, and use data across the business. You'll play a key role in delivering reliable, high-quality datasets that power smarter, faster decisions every day. This is a hands-on role where you'll design and maintain the data pipelines, integrations, and platforms that keep Neptune's data accurate, accessible, and secure. Your Key Responsibilities * Design, build, and maintain robust ETL pipelines to efficiently extract, transform, and load data from multiple sources. * Develop and optimise SQL queries, stored procedures, and database scripts to deliver high-performance data processing.
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        Lead PHP Developer

        Rise Technical Recruitment Limited
        Swindon (SN1)
        £55000.00 - £65000.00 per annum + Bonus + Progression
        Swindon (Hybrid - 3 days per-week) £55,000 - £65,000 + Bonus + Progression + Pension - An excellent opportunity awaits a Software Developer with strong PHP experience to join a growing technology-first business. The role offers technical variety, ownership and clear progression opportunities. This company is an established but expanding B2B business, with technology as its key differentiator they're looking to further grow and diversify their SaaS solutions offering. In this role, you'll take ownership of both new and existing systems, maintaining legacy code where needed while leading the design and development of new solutions. You'll work closely with the Head of Software to align on technical direction, while taking the hands-on lead in building and improving Laravel-based applications, managing APIs and third-party integrations.
        Swindon (Hybrid - 3 days per-week) £55,000 - £65,000 + Bonus + Progression + Pension - An excellent opportunity awaits a Software Developer with strong PHP experience to join a growing technology-first business. The role offers technical variety, ownership and clear progression opportunities. This company is an established but expanding B2B business, with technology as its key differentiator they're looking to further grow and diversify their SaaS solutions offering. In this role, you'll take ownership of both new and existing systems, maintaining legacy code where needed while leading the design and development of new solutions. You'll work closely with the Head of Software to align on technical direction, while taking the hands-on lead in building and improving Laravel-based applications, managing APIs and third-party integrations.
        more
        PREMIUM

        Cloud Native Engineer (AWS)

        Sanderson Government and Defence
        Cheltenham (GL50), GL50
        £50000 - £115000 per annum + Bonuses
        Cloud Native Engineer (Software, DevOps, Architecture) - National Security - Location: Cheltenham, UK (Hybrid) Software: to £90,000 - DevOps: to £100,000 - Architect: to £115,000 - About the Opportunity * Software Engineering (Java, full stack, microservices) * DevOps / Platform Engineering (Kubernetes, automation, cloud) * Solution & Cloud Architecture (distributed systems, event-driven design) You'll work hands-on building secure, scalable systems; shaping technical direction; and contributing to a collaborative engineering culture focused on simplicity, resilience, and impact. If you enjoy modern cloud-native tech, solving meaningful problems, and being part of a growing consultancy shaping its identity-this is the place to do it. Key Responsibilities (Responsibilities vary slightly but share the same cloud-native foundation.) Software Engineering
        Cloud Native Engineer (Software, DevOps, Architecture) - National Security - Location: Cheltenham, UK (Hybrid) Software: to £90,000 - DevOps: to £100,000 - Architect: to £115,000 - About the Opportunity * Software Engineering (Java, full stack, microservices) * DevOps / Platform Engineering (Kubernetes, automation, cloud) * Solution & Cloud Architecture (distributed systems, event-driven design) You'll work hands-on building secure, scalable systems; shaping technical direction; and contributing to a collaborative engineering culture focused on simplicity, resilience, and impact. If you enjoy modern cloud-native tech, solving meaningful problems, and being part of a growing consultancy shaping its identity-this is the place to do it. Key Responsibilities (Responsibilities vary slightly but share the same cloud-native foundation.) Software Engineering
        more
        FEATURED

        Senior Data Scientist

        Anson Mccade
        Cheltenham, Gloucestershire
        £60,000 - £110,000 Annual
        ££60,000 - £110,000 GBP + Package - Hybrid WORKING - Location: London;Cheltenham;Bournemouth, Central London, Greater London - United Kingdom Type: Permanent - Location: Cheltenham, London, Bournemouth - Consultative travel required - Clearance: Must be a sole British National, elligable or holding SC or DV - Salary: £60,000 - £110,000 (Depandant on grade) A leading digital consultancy is looking for a Senior Data Scientist to lead and deliver cutting-edge AI/ML solutions for clients across UK defence and public sector. This is a hands-on, strategic position for someone who thrives at the intersection of data science, client delivery, and software product design. What You'll Be Doing * Lead technical project delivery and shape data science strategy across multiple client engagements * Define and implement bespoke machine learning algorithms to solve real-world defence
        ££60,000 - £110,000 GBP + Package - Hybrid WORKING - Location: London;Cheltenham;Bournemouth, Central London, Greater London - United Kingdom Type: Permanent - Location: Cheltenham, London, Bournemouth - Consultative travel required - Clearance: Must be a sole British National, elligable or holding SC or DV - Salary: £60,000 - £110,000 (Depandant on grade) A leading digital consultancy is looking for a Senior Data Scientist to lead and deliver cutting-edge AI/ML solutions for clients across UK defence and public sector. This is a hands-on, strategic position for someone who thrives at the intersection of data science, client delivery, and software product design. What You'll Be Doing * Lead technical project delivery and shape data science strategy across multiple client engagements * Define and implement bespoke machine learning algorithms to solve real-world defence
        more
        PREMIUM
        The deployment environment varies, sometimes the 3rd party products are "on prem" with a libraries approach or it might be a Cloud based deployment with a RESTful API as the interface. * Data & API Work: SQL for data access, JSON/XML for data interchange, and basic JavaScript/TypeScript understanding for API or UI integration contexts. * Experience troubleshooting complex API and connectivity issues.
        The deployment environment varies, sometimes the 3rd party products are "on prem" with a libraries approach or it might be a Cloud based deployment with a RESTful API as the interface. * Data & API Work: SQL for data access, JSON/XML for data interchange, and basic JavaScript/TypeScript understanding for API or UI integration contexts. * Experience troubleshooting complex API and connectivity issues.
        more

        Automation Consultant

        Nomios - Groupe Infradata
        Basingstoke, Hampshire
        Competitive
        One day you could be helping a customer implement a source of truth, the next helping a customer manage their network as code, and the day after scoping a project to implement an API to expose all of the above.
        One day you could be helping a customer implement a source of truth, the next helping a customer manage their network as code, and the day after scoping a project to implement an API to expose all of the above.
        more
        Job Description Summary - Sr Staff Technical Product Manager- D&S- Avionics & Power Next Generation MES/QMS - Responsible for operating in lock-step with product management teams to create a clear strategic direction for development needs and conveys that vision to the build and/or operations team. You will direct the team with a clear and descriptive set of requirements and partner with the team to determine what can be delivered through balancing the need for new features, defects, and technical debt. Your priority is seamless integration and alignment of perspectives from a broad set of stakeholders: Product Managers, Technical Anchors, Product Owners and Developers. Job Description - Roles and Responsibilities * Demonstrate superior product and industry knowledge and helps organization to gain the competitive edge.
        Job Description Summary - Sr Staff Technical Product Manager- D&S- Avionics & Power Next Generation MES/QMS - Responsible for operating in lock-step with product management teams to create a clear strategic direction for development needs and conveys that vision to the build and/or operations team. You will direct the team with a clear and descriptive set of requirements and partner with the team to determine what can be delivered through balancing the need for new features, defects, and technical debt. Your priority is seamless integration and alignment of perspectives from a broad set of stakeholders: Product Managers, Technical Anchors, Product Owners and Developers. Job Description - Roles and Responsibilities * Demonstrate superior product and industry knowledge and helps organization to gain the competitive edge.
        more
        Join Kainos and Shape the Future - At Kainos, were problem solvers, innovators, and collaborators - driven by a shared mission to create real impact. Whether were transforming digital services for millions, delivering cutting-edge Workday solutions, or pushing the boundaries of technology, we do it together. We believe in a people-first culture, where your ideas are valued, your growth is supported, and your contributions truly make a difference. Here, youll be part of a diverse, ambitious team that celebrates creativity and collaboration. Ready to make your mark? Join us and be part of something bigger. As a Lead AI Engineer within the Workday Practice at Kainos, you will play a critical role in bridging the gap between data science and software engineering to productionise AI and machine learning solutions.
        Join Kainos and Shape the Future - At Kainos, were problem solvers, innovators, and collaborators - driven by a shared mission to create real impact. Whether were transforming digital services for millions, delivering cutting-edge Workday solutions, or pushing the boundaries of technology, we do it together. We believe in a people-first culture, where your ideas are valued, your growth is supported, and your contributions truly make a difference. Here, youll be part of a diverse, ambitious team that celebrates creativity and collaboration. Ready to make your mark? Join us and be part of something bigger. As a Lead AI Engineer within the Workday Practice at Kainos, you will play a critical role in bridging the gap between data science and software engineering to productionise AI and machine learning solutions.
        more
        NEW
        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.
        more
        We are looking for a talented and adaptable DevOps Software Engineer with strong expertise in Python and Amazon Web Services (AWS). This role is ideal for candidates who are passionate about both application development and cloud infrastructure, and who enjoys building scalable, secure, and high-performance systems. You will play a key role in designing, developing, deploying, and maintaining cloud-native applications and infrastructure. Additionally, you will collaborate with the Network Operations Team to support and enhance network automation initiatives. This includes developing tools and scripts to automate network provisioning, configuration, and monitoring, helping to drive efficiency, consistency, and reliability across our hybrid cloud environment. Software Engineering (Python) * Design and develop backend services, APIs, and automation tools using Python (Fl
        We are looking for a talented and adaptable DevOps Software Engineer with strong expertise in Python and Amazon Web Services (AWS). This role is ideal for candidates who are passionate about both application development and cloud infrastructure, and who enjoys building scalable, secure, and high-performance systems. You will play a key role in designing, developing, deploying, and maintaining cloud-native applications and infrastructure. Additionally, you will collaborate with the Network Operations Team to support and enhance network automation initiatives. This includes developing tools and scripts to automate network provisioning, configuration, and monitoring, helping to drive efficiency, consistency, and reliability across our hybrid cloud environment. Software Engineering (Python) * Design and develop backend services, APIs, and automation tools using Python (Fl
        more
        Any company can tell you about how they are a multi award winning, market leading business and yes, we are both of those things in the world of IoT connectivity! But were more than that. Our mission? To make IoT management a breeze for any device, anywhere. With over 10 million IoT subscriptions active in 165 countries and direct partnerships with 50 mobile networks, we connect you to more than 750 networks worldwide, delivering unmatched value across the IoT connectivity chain. Innovation is in our DNA, and we have an insatiable hunger to wow! While we may not always get it right, our drive to collaborate, innovate, and achieve top-notch customer satisfaction never wavers. We offer industry expertise, stellar service support, and the most flexible, resilient, and secure connectivity solutions on the market.
        Any company can tell you about how they are a multi award winning, market leading business and yes, we are both of those things in the world of IoT connectivity! But were more than that. Our mission? To make IoT management a breeze for any device, anywhere. With over 10 million IoT subscriptions active in 165 countries and direct partnerships with 50 mobile networks, we connect you to more than 750 networks worldwide, delivering unmatched value across the IoT connectivity chain. Innovation is in our DNA, and we have an insatiable hunger to wow! While we may not always get it right, our drive to collaborate, innovate, and achieve top-notch customer satisfaction never wavers. We offer industry expertise, stellar service support, and the most flexible, resilient, and secure connectivity solutions on the market.
        more

        Data Engineer

        PA Consulting Group Holdings Limited
        Cardiff, South Glamorgan
        Competitive
        We believe in the power of ingenuity to build a positive human future. As strategies, technologies, and innovation collide, we create opportunity from complexity. Our teams of interdisciplinary experts combine innovative thinking and breakthrough technologies to progress further, faster. Our clients adapt and transform, and together we achieve enduring results. We are over 4,000 strategists, innovators, designers, consultants, digital experts, scientists, engineers, and technologists. And we have deep expertise in consumer and manufacturing, defence and security, energy and utilities, financial services, government and public services, health and life sciences, and transport. Our teams operate globally from offices across the UK, Ireland, US, Nordics, and Netherlands. Bringing Ingenuity to Life. Job description - We challenge where it matters and own the outcome.
        We believe in the power of ingenuity to build a positive human future. As strategies, technologies, and innovation collide, we create opportunity from complexity. Our teams of interdisciplinary experts combine innovative thinking and breakthrough technologies to progress further, faster. Our clients adapt and transform, and together we achieve enduring results. We are over 4,000 strategists, innovators, designers, consultants, digital experts, scientists, engineers, and technologists. And we have deep expertise in consumer and manufacturing, defence and security, energy and utilities, financial services, government and public services, health and life sciences, and transport. Our teams operate globally from offices across the UK, Ireland, US, Nordics, and Netherlands. Bringing Ingenuity to Life. Job description - We challenge where it matters and own the outcome.
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        Frequently Asked Questions

        How many permanent API jobs are there in Marshgate?
        There are 25 permanent API jobs within 20 miles of Marshgate available on CWJobs right now.

        Where in Marshgate are these permanent jobs?
        You can find permanent jobs in Adamsdown, Beeches Industrial Estate, Freshbrook.

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