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        31 Permanent API jobs in Barnsley + 20 miles

        Senior Python Developer - AI Analytics SaaS. 4 Day Week. £70-90K

        Recruitment Revolution
        LS1, Leeds
        £70,000 - £90,000 DOE Plus Benefits
        This role is ideal for someone experienced in backend API development and working with modern data infrastructure. Your Expertise: Highly experienced Developer with experience of backend API development and working with modern data infrastructure. • API development with Falcon framework
        This role is ideal for someone experienced in backend API development and working with modern data infrastructure. Your Expertise: Highly experienced Developer with experience of backend API development and working with modern data infrastructure. • API development with Falcon framework
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        NEW
        This role is ideal for someone experienced in backend API development and working with modern data infrastructure. Your Expertise: Highly experienced Developer with experience of backend API development and working with modern data infrastructure. API development with Falcon framework
        This role is ideal for someone experienced in backend API development and working with modern data infrastructure. Your Expertise: Highly experienced Developer with experience of backend API development and working with modern data infrastructure. API development with Falcon framework
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        NEW
        Leveraging CloudFront, Route 53, and API Gateway for secure and scalable content delivery
        Leveraging CloudFront, Route 53, and API Gateway for secure and scalable content delivery
        NEWFEATURED

        Salesforce Business Architect

        TRANSUNION INTERNATIONAL UK LIMITED
        Leeds, West Yorkshire
        Competitive
        TransUnion's Job Applicant Privacy Notice - We support organisations across a variety of sectors including finance, retail, telecommunications, utilities, gaming, government and insurance. Were looking for a Solution Architect to join our growing team. * Design scalable solutions, identifying gaps between current and desired end-states, to enable achievement of the desired business outcomes in alignment with the journey roadmap and organization goals, knowing how to work in and around the limits of the platform. * Act as a solution guide, being able to speak conceptually, document the proposed solution and be comfortable doing hands on configuration and/or coding. May build proof-of-concept (POCs) that can be carried forward by the team. * Stay up to date with the latest Salesforce releases, features, and functionalities, and provide guidance on leveraging new capabil
        TransUnion's Job Applicant Privacy Notice - We support organisations across a variety of sectors including finance, retail, telecommunications, utilities, gaming, government and insurance. Were looking for a Solution Architect to join our growing team. * Design scalable solutions, identifying gaps between current and desired end-states, to enable achievement of the desired business outcomes in alignment with the journey roadmap and organization goals, knowing how to work in and around the limits of the platform. * Act as a solution guide, being able to speak conceptually, document the proposed solution and be comfortable doing hands on configuration and/or coding. May build proof-of-concept (POCs) that can be carried forward by the team. * Stay up to date with the latest Salesforce releases, features, and functionalities, and provide guidance on leveraging new capabil
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        Cloud-native infrastructure in AWS - ECS, Lambda, Step Functions, SNS/SQS, Transit Gateway, Aurora, DynamoDB, CloudFront, S3, AppSync, API Gateway, and many more.
        Cloud-native infrastructure in AWS - ECS, Lambda, Step Functions, SNS/SQS, Transit Gateway, Aurora, DynamoDB, CloudFront, S3, AppSync, API Gateway, and many more.
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        73 exact matches jobs are outside your preferred location

        Senior Python Developer - Full Stack

        Ascent People
        Nottingham, Nottinghamshire
        £60000 - £70000 per annum + Hybrid, Pension
        Senior Full Stack Python Developer, Senior Django / Python Analyst Programmer, AWS, Cloud, Azure, Python, Django Stack, REST APIs, Web Development, React, Angular, JavaScript, CI/CD - Nottingham 70K - Global Software House - East Midlands - Salary up to 75K + pension, bonus, flex around start/finish times. - 3 days in office * Do you have a solid background in Django, Python? * Are you comfortable working in a full stack role with frontend frameworks? * Have you worked on cloud based solutions, ideally AWS? Role: A seasoned software developer with over five years of commercial experience in modern Python development, ideally version 3, complemented by at least two years of hands-on frontend development expertise with React or similar frameworks. The ideal candidate will have practical knowledge of application design and microservices architecture, along with experienc
        Senior Full Stack Python Developer, Senior Django / Python Analyst Programmer, AWS, Cloud, Azure, Python, Django Stack, REST APIs, Web Development, React, Angular, JavaScript, CI/CD - Nottingham 70K - Global Software House - East Midlands - Salary up to 75K + pension, bonus, flex around start/finish times. - 3 days in office * Do you have a solid background in Django, Python? * Are you comfortable working in a full stack role with frontend frameworks? * Have you worked on cloud based solutions, ideally AWS? Role: A seasoned software developer with over five years of commercial experience in modern Python development, ideally version 3, complemented by at least two years of hands-on frontend development expertise with React or similar frameworks. The ideal candidate will have practical knowledge of application design and microservices architecture, along with experienc
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        NEW

        Technical Architect

        DWP Digital
        City Centre, M2 3LR
        £57946 - £83917 per annum
        Microservice and API-led architecture and integration design tools, techniques and best practice. * API Management: Experience in designing and implementing APIs (REST/JSON, SOAP/XML, GraphQL), including API lifecycle management, API gateways, HTTP transport and security such as mTLS, OIDC.
        Microservice and API-led architecture and integration design tools, techniques and best practice. * API Management: Experience in designing and implementing APIs (REST/JSON, SOAP/XML, GraphQL), including API lifecycle management, API gateways, HTTP transport and security such as mTLS, OIDC.
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        NEWPREMIUM

        Senior .Net Developer

        Invitise Ltd
        M1, Manchester
        From £50,000 to £60,000 per annum + Excellent Benefits
        Were looking for a Senior .Net Developer for our professional services client based in Manchester on a permanent basis, paying between £50,000 to £60,000 per annum + great benefits. This role allows remote working with occasional site visits. Youll be working as part of a small, agile team, helping design and develop internal applications and new products using the latest .NET stack. This is a hands-on full-stack role, ideal for someone who enjoys solving business problems with clean, scalable code and mentoring junior team members. You will need to either hold a current UK Right to Work or have the ability to work without sponsorship. * C# and .NET (Core/Framework) * Angular (or modern JavaScript front-end frameworks) * SQL Server and Entity Framework * Docker & AWS ECS * Architecture & Design * Event-driven architecture (e.g. RabbitMQ) * RESTful APIs and microservic
        Were looking for a Senior .Net Developer for our professional services client based in Manchester on a permanent basis, paying between £50,000 to £60,000 per annum + great benefits. This role allows remote working with occasional site visits. Youll be working as part of a small, agile team, helping design and develop internal applications and new products using the latest .NET stack. This is a hands-on full-stack role, ideal for someone who enjoys solving business problems with clean, scalable code and mentoring junior team members. You will need to either hold a current UK Right to Work or have the ability to work without sponsorship. * C# and .NET (Core/Framework) * Angular (or modern JavaScript front-end frameworks) * SQL Server and Entity Framework * Docker & AWS ECS * Architecture & Design * Event-driven architecture (e.g. RabbitMQ) * RESTful APIs and microservic
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        Senior .NET Developer

        Searchability (UK) Ltd
        M1, Manchester
        £60000 - £65000 per annum
        Senior Back-End Developer - C# / .NET / SQL Server * C#, .NET 6+, SQL Server, REST & GraphQL APIs, Azure, Git * Salary up to £65k * Onsite in Central Manchester * Excellent career progression - Who We Are - We're a collaborative tech team delivering robust, scalable SaaS products to a global customer base. Our developer-led culture values clean, maintainable code, innovation, and continuous learning. With an ambitious roadmap ahead, we're expanding our back-end capabilities and looking for a Senior Developer to help shape and deliver our next generation of features. Who We're Seeking - We're looking for a Senior Back-End Developer with deep expertise in C# (.NET 6+) and SQL Server, plus strong experience building and maintaining RESTful and GraphQL APIs. You'll work in a collaborative agile environment, contributing to the full development lifecycle from concept to de
        Senior Back-End Developer - C# / .NET / SQL Server * C#, .NET 6+, SQL Server, REST & GraphQL APIs, Azure, Git * Salary up to £65k * Onsite in Central Manchester * Excellent career progression - Who We Are - We're a collaborative tech team delivering robust, scalable SaaS products to a global customer base. Our developer-led culture values clean, maintainable code, innovation, and continuous learning. With an ambitious roadmap ahead, we're expanding our back-end capabilities and looking for a Senior Developer to help shape and deliver our next generation of features. Who We're Seeking - We're looking for a Senior Back-End Developer with deep expertise in C# (.NET 6+) and SQL Server, plus strong experience building and maintaining RESTful and GraphQL APIs. You'll work in a collaborative agile environment, contributing to the full development lifecycle from concept to de
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        FEATURED

        Remote Group Health Insurance Specialist

        Vitality Corporate
        Crown Royal Ind Park, SK1
        £27,000 + Bonus + Benefits
        You will have proven sales background where you enjoy exceeding targets(minimum of12 months) and can evidence working to stretching sales targets (API written) as well as KPIs such as conversion rates (Calls, leads, quotes, sales, average premium) and quality measures (NTU rate, QA Score and Complaints)
        You will have proven sales background where you enjoy exceeding targets(minimum of12 months) and can evidence working to stretching sales targets (API written) as well as KPIs such as conversion rates (Calls, leads, quotes, sales, average premium) and quality measures (NTU rate, QA Score and Complaints)
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        NEWPREMIUM
        Role: Software Development Engineer - Business Integrations - Location: Congleton, full-time on-site - Salary: £40k+ plus benefits - Keywords: C#.NET, VB.NET, SQL, APIs, ERP integrations - Youre the kind of person who doesnt just write code - you connect the dots. Databases, APIs, ERP systems some people find them confusing, but you see them as pieces of a puzzle that you cant wait to put together. And more than that, you love talking to people, digging into what they really need, and turning those conversations into smart, working software solutions. If youre ambitious, outgoing, and ready to take ownership of projects that make a real difference, then this could be the role that takes your career to the next level. My client is a leader in automation and control solutions, with systems running in nearly 200 manufacturing sites worldwide.
        Role: Software Development Engineer - Business Integrations - Location: Congleton, full-time on-site - Salary: £40k+ plus benefits - Keywords: C#.NET, VB.NET, SQL, APIs, ERP integrations - Youre the kind of person who doesnt just write code - you connect the dots. Databases, APIs, ERP systems some people find them confusing, but you see them as pieces of a puzzle that you cant wait to put together. And more than that, you love talking to people, digging into what they really need, and turning those conversations into smart, working software solutions. If youre ambitious, outgoing, and ready to take ownership of projects that make a real difference, then this could be the role that takes your career to the next level. My client is a leader in automation and control solutions, with systems running in nearly 200 manufacturing sites worldwide.
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        NEW
        Pay up to £52,442 plus 28.97% employer pension contributions, hybrid working, flexible hours, and great work life balance. Digital with Purpose. We are looking for an Identity Access Management Infrastructure Engineer to join our community of tech experts in DWP Digital. We're using fresh ideas and leading-edge tech to build and maintain digital solutions that will be used by nearly every person in the UK, every day and at key moments in their lives. DWP is the UK's largest government department. We help people into work and make payments worth over £195bn a year to support and empower millions of people. The scale of what we do is extraordinary, and our purpose is unique. We'd love you to join us. What skills, knowledge and experience will you need? * Experience of working with Active Directory, Entra ID, MFA technologies.
        Pay up to £52,442 plus 28.97% employer pension contributions, hybrid working, flexible hours, and great work life balance. Digital with Purpose. We are looking for an Identity Access Management Infrastructure Engineer to join our community of tech experts in DWP Digital. We're using fresh ideas and leading-edge tech to build and maintain digital solutions that will be used by nearly every person in the UK, every day and at key moments in their lives. DWP is the UK's largest government department. We help people into work and make payments worth over £195bn a year to support and empower millions of people. The scale of what we do is extraordinary, and our purpose is unique. We'd love you to join us. What skills, knowledge and experience will you need? * Experience of working with Active Directory, Entra ID, MFA technologies.
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        NEWPREMIUM

        WordPress Developer - Remote

        Transparent Technology
        M1, Manchester
        £45000 - £55000 per annum + bens
        Remote WordPress Developer - PHP / JavaScript - Up to £55k + Benefits - A leading digital publisher in the sports sector is seeking a Remote WordPress Developer to join their growing team. You'll be working on high-traffic, large-scale WordPress websites, building new features, integrating APIs, and ensuring fast, reliable performance for millions of users. The Role * Develop, maintain, and optimise high-volume WordPress websites * Integrate third-party APIs to deliver new features * Write clean, efficient, and scalable PHP and JavaScript code * Work with modern front-end technologies (HTML5, CSS3, JSON, Gulp) * Use Git for version control and collaborate within an agile environment - Skills & Experience Required * Strong WordPress development experience (themes, plugins, custom builds) * Proficiency in PHP and JavaScript (Node.js desirable) * Solid understanding of H
        Remote WordPress Developer - PHP / JavaScript - Up to £55k + Benefits - A leading digital publisher in the sports sector is seeking a Remote WordPress Developer to join their growing team. You'll be working on high-traffic, large-scale WordPress websites, building new features, integrating APIs, and ensuring fast, reliable performance for millions of users. The Role * Develop, maintain, and optimise high-volume WordPress websites * Integrate third-party APIs to deliver new features * Write clean, efficient, and scalable PHP and JavaScript code * Work with modern front-end technologies (HTML5, CSS3, JSON, Gulp) * Use Git for version control and collaborate within an agile environment - Skills & Experience Required * Strong WordPress development experience (themes, plugins, custom builds) * Proficiency in PHP and JavaScript (Node.js desirable) * Solid understanding of H
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        NEW
        Pay up to £71,017, plus 28.97% employer pension contributions, hybrid working, flexible hours, and great work life balance. Digital with Purpose. We are looking for a Senior Performance Test Engineer to join our community of tech experts in DWP Digital. We're using fresh ideas and leading-edge tech to build and maintain digital solutions that will be used by nearly every person in the UK, every day and at key moments in their lives. DWP is the UK's largest government department. We help people into work and make payments worth over £195bn a year to support and empower millions of people. The scale of what we do is extraordinary, and our purpose is unique. We'd love you to join us. What skills, knowledge and experience will you need? * Significant demonstrable experience Performance Test Engineer / Lead in an agile team with a pragmatic, strategic mindset with focus on
        Pay up to £71,017, plus 28.97% employer pension contributions, hybrid working, flexible hours, and great work life balance. Digital with Purpose. We are looking for a Senior Performance Test Engineer to join our community of tech experts in DWP Digital. We're using fresh ideas and leading-edge tech to build and maintain digital solutions that will be used by nearly every person in the UK, every day and at key moments in their lives. DWP is the UK's largest government department. We help people into work and make payments worth over £195bn a year to support and empower millions of people. The scale of what we do is extraordinary, and our purpose is unique. We'd love you to join us. What skills, knowledge and experience will you need? * Significant demonstrable experience Performance Test Engineer / Lead in an agile team with a pragmatic, strategic mindset with focus on
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        NEWPREMIUM
        Location: Ancoats, M4 5DB - Salary: Up to £30,000 per annum DOE - Our client is a leading platform for connecting customers with reliable, efficient, and professional coach hire services across the UK. Whether it's for private events, corporate transport, school trips, or group travel, their goal is to simplify the booking process and enhance the customer experience through smart technology and dedicated service. They pride themselves on the supportive, inclusive environment of their office. Dog friendly, dressed down, and a little coffee mad, it truly is a unique and welcoming place to work. The Role - Theyre looking for a talented Junior or Mid Level Full-Stack Developer with a passion for solving problems through technology. In this role, youll contribute to building and maintaining digital tools that support everything from customer bookings to operator management
        Location: Ancoats, M4 5DB - Salary: Up to £30,000 per annum DOE - Our client is a leading platform for connecting customers with reliable, efficient, and professional coach hire services across the UK. Whether it's for private events, corporate transport, school trips, or group travel, their goal is to simplify the booking process and enhance the customer experience through smart technology and dedicated service. They pride themselves on the supportive, inclusive environment of their office. Dog friendly, dressed down, and a little coffee mad, it truly is a unique and welcoming place to work. The Role - Theyre looking for a talented Junior or Mid Level Full-Stack Developer with a passion for solving problems through technology. In this role, youll contribute to building and maintaining digital tools that support everything from customer bookings to operator management
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        NEW
        As part of our continuous growth and commitment to excellence, we are excited to introduce a brand-new role: Database Engineer. This pivotal position will operate within our technology department, which plays an essential role in ensuring the smooth and efficient functioning and development of our databases and pipelines. You will be responsible for developing, optimising and managing these databases and ensuring a high-level of data quality and integrity. You will be defining the principles and processes that underpin data management while ensuring we maintain the highest standards for data management, security, privacy and compliance. * Design, develop, and optimise relational and non-relational databases across production and non-production environments. * Provisioning, configuring, patching, upgrading, and maintaining databases.
        As part of our continuous growth and commitment to excellence, we are excited to introduce a brand-new role: Database Engineer. This pivotal position will operate within our technology department, which plays an essential role in ensuring the smooth and efficient functioning and development of our databases and pipelines. You will be responsible for developing, optimising and managing these databases and ensuring a high-level of data quality and integrity. You will be defining the principles and processes that underpin data management while ensuring we maintain the highest standards for data management, security, privacy and compliance. * Design, develop, and optimise relational and non-relational databases across production and non-production environments. * Provisioning, configuring, patching, upgrading, and maintaining databases.
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        NEW

        Python Developer

        Get2Talent
        M1, Manchester
        From £50,000 to £65,000 per annum Plus benefits
        Our client, a mission-led consultancy, is looking for talented Python Developers to join their growing team. They deliver secure, modern software solutions within the UK Government and Defence sectors, helping clients build scalable systems and progressive web applications that make a real impact. This is an exciting opportunity for a Python developer who thrives in agile environments, enjoys collaborating with diverse teams, and is passionate about continuous learning and delivering high-quality Python solutions. Key Responsibilities * Design, develop, and test secure software systems using Python + React * Build and maintain APIs and data pipelines using modern architecture principles * Deploy solutions to cloud environments (AWS, Azure, and private cloud) * Contribute across the full software development lifecycle from requirements gathering through to delivery and
        Our client, a mission-led consultancy, is looking for talented Python Developers to join their growing team. They deliver secure, modern software solutions within the UK Government and Defence sectors, helping clients build scalable systems and progressive web applications that make a real impact. This is an exciting opportunity for a Python developer who thrives in agile environments, enjoys collaborating with diverse teams, and is passionate about continuous learning and delivering high-quality Python solutions. Key Responsibilities * Design, develop, and test secure software systems using Python + React * Build and maintain APIs and data pipelines using modern architecture principles * Deploy solutions to cloud environments (AWS, Azure, and private cloud) * Contribute across the full software development lifecycle from requirements gathering through to delivery and
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        NEW

        Software Engineer

        Reed Technology
        S80, Worksop
        £40000 - £50000 per annum
        Full Stack Developer - React.js | Node.js | SQL Server - Location: Nottinghamshire, 2 days a week in office - Employment Type: Permanent - Salary: Based on experience - Due to continued success, I am looking for a skilled Mid-Level Full Stack Developer to join my clients growing team working on a modern, web-based platform. This is a hands-on role where you'll be building new applications and enhancing existing ones using React.js, Node.js, and SQL Server. The role is offered on a hybrid basis, minimum 2 days a week in their Nottinghamshire office * Develop and maintain full-stack web applications with a focus on performance and scalability. * Build responsive, data-driven UIs using React.js, consuming JSON APIs. * Create and enhance backend services using Node.js. * Work with complex business logic implemented in SQL Server stored procedures.
        Full Stack Developer - React.js | Node.js | SQL Server - Location: Nottinghamshire, 2 days a week in office - Employment Type: Permanent - Salary: Based on experience - Due to continued success, I am looking for a skilled Mid-Level Full Stack Developer to join my clients growing team working on a modern, web-based platform. This is a hands-on role where you'll be building new applications and enhancing existing ones using React.js, Node.js, and SQL Server. The role is offered on a hybrid basis, minimum 2 days a week in their Nottinghamshire office * Develop and maintain full-stack web applications with a focus on performance and scalability. * Build responsive, data-driven UIs using React.js, consuming JSON APIs. * Create and enhance backend services using Node.js. * Work with complex business logic implemented in SQL Server stored procedures.
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        Frequently Asked Questions

        How many permanent API jobs are there in Barnsley?
        There are 31 permanent API jobs within 20 miles of Barnsley available on CWJobs right now.

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