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        108


        5 Permanent API jobs in Swindon + 20 miles

        Software Developer, C#, .NET Core, SQL Server, COR7417

        Corriculo Ltd
        Rackend, Witney (OX28), OX28
        £40k - 50k per year + Benefits
        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
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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.
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        NEWPREMIUM
        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.
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        NEW
        Your AI era starts now - At Lloyds Banking Group, data isnt just something we store in the cloud. Its the juice that keeps ideas flowing, decisions sharper, and progress unstoppable. Our Chief Data & Analytics Office has one mission: weave data, analytics and AI into every decision we make. The goal? Simple. Every choice, everywhere, driven by data. As a Data Science & AI Graduate, you wont be on the sidelines watching the algorithms run the show. Youll be training models, crafting algorithms, deploying scalable solutions, and showing exactly what AI can do in the real world. Whether youre optimising performance, unlocking insight or making predictions, everything you do will be rooted in data literacy, ethics and genuine business impact. Two years. Three game-changing rotations - This two-year programme blends office and home working.
        Your AI era starts now - At Lloyds Banking Group, data isnt just something we store in the cloud. Its the juice that keeps ideas flowing, decisions sharper, and progress unstoppable. Our Chief Data & Analytics Office has one mission: weave data, analytics and AI into every decision we make. The goal? Simple. Every choice, everywhere, driven by data. As a Data Science & AI Graduate, you wont be on the sidelines watching the algorithms run the show. Youll be training models, crafting algorithms, deploying scalable solutions, and showing exactly what AI can do in the real world. Whether youre optimising performance, unlocking insight or making predictions, everything you do will be rooted in data literacy, ethics and genuine business impact. Two years. Three game-changing rotations - This two-year programme blends office and home working.
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        PREMIUM

        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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        103 exact matches jobs are outside your preferred location

        Senior .Net Integration Developer

        Rise Technical
        Maidenhead, Berkshire
        £50000.00 - £70000.00 per annum + + Training + Holiday
        You will use your expertise in C#/.NET and modern APIs (REST, WebAPI, JSON, OAuth2) to build fault-tolerant, event-driven integrations, support customers and partners with API usage, and deliver clear, high-quality documentation while maintaining security, GDPR compliance, and operational reliability. Taking integration leadership, you will design and maintain well-documented financial and third-party integrations built on modern API standards. * Support customers and partners with integration setup and API usage
        You will use your expertise in C#/.NET and modern APIs (REST, WebAPI, JSON, OAuth2) to build fault-tolerant, event-driven integrations, support customers and partners with API usage, and deliver clear, high-quality documentation while maintaining security, GDPR compliance, and operational reliability. Taking integration leadership, you will design and maintain well-documented financial and third-party integrations built on modern API standards. * Support customers and partners with integration setup and API usage
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        TM Forum SOM Architect

        Stackstudio Digital Ltd.
        Windsor (SL4)
        From £425 to £450 per day
        Act as the champion for TMF ODA and Open API principles across Energy Services Platform. Strong experience designing and implementing solutions using TM Forum Open APIs and a deep understanding of the ODA and Open API frameworks - Proficiency in RESTful API design, JSON, OpenAPI/Swagger specifications, microservices architecture, and cloud-native deployment models (Docker, Kubernetes, public/hybrid cloud platforms)
        Act as the champion for TMF ODA and Open API principles across Energy Services Platform. Strong experience designing and implementing solutions using TM Forum Open APIs and a deep understanding of the ODA and Open API frameworks - Proficiency in RESTful API design, JSON, OpenAPI/Swagger specifications, microservices architecture, and cloud-native deployment models (Docker, Kubernetes, public/hybrid cloud platforms)
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        .NET Developer

        Halian Technology Limited
        Longbridge, Warwick (CV34), CV34
        From £60,000 to £100,000 per annum Plus bonus and benefits
        Mid Level & Senior .NET Developer (Azure / API Experience) * Understanding ofsecurity best practicesfor cloud and API development.
        Mid Level & Senior .NET Developer (Azure / API Experience) * Understanding ofsecurity best practicesfor cloud and API development.
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        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.
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        Salesforce Tech Lead

        Stackstudio Digital Ltd.
        Windsor (SL4)
        From £450 to £475 per day
        Job Title:Salesforce Tech Lead - Location:Windsor, UK (1 day a week) Job Purpose and Primary Objectives:Salesforce Tech Lead - Key Responsibilities (Please specify if the position is an individual one or part of a team) * Participate in refining and scoping upcoming sprint work. * Assist solution architects with technical design and breaking down complex tasks. * Accountable for timely delivery of assigned tickets, meeting acceptance criteria. * Conduct spikes/investigations into innovative technologies for future project viability. * Ensure teammates' work meets code quality standards through reviews. * Coordinate with other teams for integrations, ensuring alignment of tasks and APIs. * Work with the QA team to investigate and resolve issues. * Mentor junior team members, providing assistance with tasks and problem-solving.
        Job Title:Salesforce Tech Lead - Location:Windsor, UK (1 day a week) Job Purpose and Primary Objectives:Salesforce Tech Lead - Key Responsibilities (Please specify if the position is an individual one or part of a team) * Participate in refining and scoping upcoming sprint work. * Assist solution architects with technical design and breaking down complex tasks. * Accountable for timely delivery of assigned tickets, meeting acceptance criteria. * Conduct spikes/investigations into innovative technologies for future project viability. * Ensure teammates' work meets code quality standards through reviews. * Coordinate with other teams for integrations, ensuring alignment of tasks and APIs. * Work with the QA team to investigate and resolve issues. * Mentor junior team members, providing assistance with tasks and problem-solving.
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        Salesforce Tech Lead

        Infoplus Technologies UK Ltd
        Windsor, Berkshire
        From £450 to £500 per day
        Windsor, UK - Will the role be 100% remote, Hybrid or 100% office? (Mandatory) Hybrid (visit to office once every week) to begin with - Is BGC required to completed before joining?(Y/N) * Participate in refining and scoping upcoming sprint work. * Assist solution architects with technical design and breaking down complex tasks. * Accountable for timely delivery of assigned tickets, meeting acceptance criteria. * Conduct spikes/investigations into innovative technologies for future project viability. * Ensure teammates' work meets code quality standards through reviews. * Coordinate with other teams for integrations, ensuring alignment of tasks and APIs. * Work with the QA team to investigate and resolve issues. * Mentor junior team members, providing assistance with tasks and problem-solving. * At least 5+ years Salesforce, both declarative and programmatic * Sales an
        Windsor, UK - Will the role be 100% remote, Hybrid or 100% office? (Mandatory) Hybrid (visit to office once every week) to begin with - Is BGC required to completed before joining?(Y/N) * Participate in refining and scoping upcoming sprint work. * Assist solution architects with technical design and breaking down complex tasks. * Accountable for timely delivery of assigned tickets, meeting acceptance criteria. * Conduct spikes/investigations into innovative technologies for future project viability. * Ensure teammates' work meets code quality standards through reviews. * Coordinate with other teams for integrations, ensuring alignment of tasks and APIs. * Work with the QA team to investigate and resolve issues. * Mentor junior team members, providing assistance with tasks and problem-solving. * At least 5+ years Salesforce, both declarative and programmatic * Sales an
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        Frequently Asked Questions

        How many permanent API jobs are there in Swindon?
        There are 5 permanent API jobs within 20 miles of Swindon available on CWJobs right now.

        What other similar jobs are there to permanent API jobs in Swindon?
        As well as permanent API jobs in Swindon, you can find permanent Qa Automation, Quality Assurance, Software Developer, amongst many others.