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36 API jobs in Altrincham + 20 miles
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£40,000 - £75,000 depending on seniority - Enhanced DV Clearance required - Manchester Based - One Stage Interview On September 5th - Are you a passionate Software Engineer looking to use your skills on complex missions in the heart of national security? Were partnered with a world-renowned Defence and National Security consultancy a Prime with a global reputation for excellence - to grow their team within the Applications Framework. Recognised as one of the best places to work worldwide, this is your chance to join an organisation that combines cutting-edge technology with purpose-driven missions. What Youll Be Doing * Designing and developing high-quality, secure software for mission-critical applications * Working across a collaborative, multi-disciplinary team of engineers, data specialists and DevOps experts
£40,000 - £75,000 depending on seniority - Enhanced DV Clearance required - Manchester Based - One Stage Interview On September 5th - Are you a passionate Software Engineer looking to use your skills on complex missions in the heart of national security? Were partnered with a world-renowned Defence and National Security consultancy a Prime with a global reputation for excellence - to grow their team within the Applications Framework. Recognised as one of the best places to work worldwide, this is your chance to join an organisation that combines cutting-edge technology with purpose-driven missions. What Youll Be Doing * Designing and developing high-quality, secure software for mission-critical applications * Working across a collaborative, multi-disciplinary team of engineers, data specialists and DevOps experts
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My Client is hiring a skilled Frontend Developer with strong proficiency in React and TypeScript to build engaging, responsive web interfaces. Youll collaborate with backend developers and designers to turn complex requirements into elegant user experiences. * Develop and maintain web applications using React and TypeScript * Work closely with UX/UI designers to deliver pixel-perfect interfaces * Build reusable components and manage application state * Optimise performance and ensure accessibility best practices * Write clean, testable code and participate in peer reviews * Strong experience with React, TypeScript, and modern JavaScript * Familiarity with frontend tooling (Vite, Webpack, ESLint, Prettier) * Understanding of REST APIs and client-side state management (Redux, TanStack Query) * Responsive design, accessibility (WCAG), and cross-browser compatibility
My Client is hiring a skilled Frontend Developer with strong proficiency in React and TypeScript to build engaging, responsive web interfaces. Youll collaborate with backend developers and designers to turn complex requirements into elegant user experiences. * Develop and maintain web applications using React and TypeScript * Work closely with UX/UI designers to deliver pixel-perfect interfaces * Build reusable components and manage application state * Optimise performance and ensure accessibility best practices * Write clean, testable code and participate in peer reviews * Strong experience with React, TypeScript, and modern JavaScript * Familiarity with frontend tooling (Vite, Webpack, ESLint, Prettier) * Understanding of REST APIs and client-side state management (Redux, TanStack Query) * Responsive design, accessibility (WCAG), and cross-browser compatibility
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Lead Technical Architect
Lead Technical Architect
Department for Work and Pensions (DWP)
M2, Manchester, M2 3AA
From £72,664 to £99,836 per annum plus 28.97% pension contributions
Microservice and API-led architecture and integration design tools, techniques and best practice.
Microservice and API-led architecture and integration design tools, techniques and best practice.
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Microservice and API-led architecture and integration design tools, techniques and best practice.
Microservice and API-led architecture and integration design tools, techniques and best practice.
NEWPREMIUM
Python and/or JavaScript/TypeScript experience, strong AWS skills, Kubernetes, CI/CD, and experience with data platforms, high-volume processing, API development, and Terraform.
Python and/or JavaScript/TypeScript experience, strong AWS skills, Kubernetes, CI/CD, and experience with data platforms, high-volume processing, API development, and Terraform.
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C# Full Stack Developer - Blazor 75K
C# Full Stack Developer - Blazor 75K
Ascent People
Woodlands Park, WA14
£51000 - £75000 per annum + Pension, Medical, Gym
Senior Full Stack Developer, .Net Core Developer/ C# Developer, Full Stack Programmer, C#, Blazor, AWS, Cloud, Azure, .Net, Microsoft Stack, ASP.Net, MVC, WEB, NoSQL, SQL Server, API, up to 75K + package - This is an office based job.
Senior Full Stack Developer, .Net Core Developer/ C# Developer, Full Stack Programmer, C#, Blazor, AWS, Cloud, Azure, .Net, Microsoft Stack, ASP.Net, MVC, WEB, NoSQL, SQL Server, API, up to 75K + package - This is an office based job.
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Experience of working with Storybook, REST API or GraphQL * Up to date knowledge of the latest features of React including Hooks and Context API
Experience of working with Storybook, REST API or GraphQL * Up to date knowledge of the latest features of React including Hooks and Context API
About Us - At Calisen, were leading the smart energy technology revolution. We own, finance, install, and service essential energy infrastructure assets that enable smarter energy for all. From smart metering and data services to EV charging and the electrification of heat, were helping to build a more sustainable, greener future. Our mission is to deliver smarter, more sustainable energy through innovation and collaboration. Were proud of our inclusive culture, where everyone is respected and empowered to make a difference. As we continue to grow, were looking for passionate individuals who share our values and want to be part of a team thats shaping the future of energy. About the Role - Were looking for a skilled and motivated Software Development Engineer in Test (SDET) to join our Digital team. This is a key role supporting business-critical IT transformation acr
About Us - At Calisen, were leading the smart energy technology revolution. We own, finance, install, and service essential energy infrastructure assets that enable smarter energy for all. From smart metering and data services to EV charging and the electrification of heat, were helping to build a more sustainable, greener future. Our mission is to deliver smarter, more sustainable energy through innovation and collaboration. Were proud of our inclusive culture, where everyone is respected and empowered to make a difference. As we continue to grow, were looking for passionate individuals who share our values and want to be part of a team thats shaping the future of energy. About the Role - Were looking for a skilled and motivated Software Development Engineer in Test (SDET) to join our Digital team. This is a key role supporting business-critical IT transformation acr
London - 2025-08-26T00:00:00Z - 170103 - Vanguard - Location: London or Manchester (Hybrid) About Vanguard - Vanguard is an investment company unlike any other. It was founded by Jack Bogle in the US in 1975 on a simple but revolutionary idea: that an investment company should manage its funds solely in the interests of its clients. Jack helped bring investing to the masses with the index fund. Index funds do not pick individual shares or bonds to beat the market. They track the performance of the entire market. Or as Jack put it, "Don't look for the needle in the haystack. Just buy the haystack!". We have stood for low-cost, uncomplicated investing ever since. Over the last 45 years people have come round to our way of thinking and more than 50 million investors worldwide now trust us with their money. About the Role
London - 2025-08-26T00:00:00Z - 170103 - Vanguard - Location: London or Manchester (Hybrid) About Vanguard - Vanguard is an investment company unlike any other. It was founded by Jack Bogle in the US in 1975 on a simple but revolutionary idea: that an investment company should manage its funds solely in the interests of its clients. Jack helped bring investing to the masses with the index fund. Index funds do not pick individual shares or bonds to beat the market. They track the performance of the entire market. Or as Jack put it, "Don't look for the needle in the haystack. Just buy the haystack!". We have stood for low-cost, uncomplicated investing ever since. Over the last 45 years people have come round to our way of thinking and more than 50 million investors worldwide now trust us with their money. About the Role
PORTWEST , a leading global manufacturer of safety wear, workwear and PPE is currently seeking applications for the position of Junior Ecommerce and Marketplace Data Analyst, based near the Manchester area, on a permanent basis reporting to the Head of Ecommerce and Marketplace . Founded in 1904, Portwest has become one of the fastest growing workwear companies in the world currently employing over 5,100 staff worldwide. With 1400 styles across more than 20 ranges, we design, manufacture and distribute market leading workwear, safety wear and PPE in fully owned production facilities. We're on a mission to become the world's most requested PPE and Safety Wear Brand. We are looking for a Junior eCommerce & Marketplace Data Analyst to help us turn raw marketplace data into clear, actionable insight.
PORTWEST , a leading global manufacturer of safety wear, workwear and PPE is currently seeking applications for the position of Junior Ecommerce and Marketplace Data Analyst, based near the Manchester area, on a permanent basis reporting to the Head of Ecommerce and Marketplace . Founded in 1904, Portwest has become one of the fastest growing workwear companies in the world currently employing over 5,100 staff worldwide. With 1400 styles across more than 20 ranges, we design, manufacture and distribute market leading workwear, safety wear and PPE in fully owned production facilities. We're on a mission to become the world's most requested PPE and Safety Wear Brand. We are looking for a Junior eCommerce & Marketplace Data Analyst to help us turn raw marketplace data into clear, actionable insight.
Application Engineering Technical Lead (AWS)
Application Engineering Technical Lead (AWS)
Vanguard Storage
Manchester, Greater Manchester
Competitive
Experience with AWS, API design, and automated testing frameworks.
Experience with AWS, API design, and automated testing frameworks.
69 exact matches jobs are outside your preferred location
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Advanced Power BI skills including DAX, M Query, Power Automate, Power Apps, and API integrations as well as SQL data modelling experience
Advanced Power BI skills including DAX, M Query, Power Automate, Power Apps, and API integrations as well as SQL data modelling experience
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Senior .NET C# Azure Developer
Senior .NET C# Azure Developer
Leeds Building Society
LS1, Leeds, LS1 4BJ
£57,000 to £65,000/Negotiable
You are highly experienced in C#, .NET framework, .NET Core, Azure, API's and SQL Server.
You are highly experienced in C#, .NET framework, .NET Core, Azure, API's and SQL Server.
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Own technical implementation of custom API integrations using HubSpot's API and middleware tools * Experience with HubSpot API and third-party integrations * Familiarity with JavaScript, JSON, or Python (for API and integration work)
Own technical implementation of custom API integrations using HubSpot's API and middleware tools * Experience with HubSpot API and third-party integrations * Familiarity with JavaScript, JSON, or Python (for API and integration work)
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Solid understanding of REST API design and development
Solid understanding of REST API design and development
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Senior Software Engineer .Net
Senior Software Engineer .Net
Coburg Banks Limited
Leeds, West Yorkshire
£65000 - £70000 per annum + Pension, Healthcare
Experience with API (RESTful/Socket/OpenQL), microservice architecture and development.
Experience with API (RESTful/Socket/OpenQL), microservice architecture and development.
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.NET Developer (C# 8, .NET, Azure / API Focus/ SQL/ NoSQL) This role is ideal for someone who thrives in an Agile environment, enjoys building API-first solutions from the ground up, and is passionate about leveraging Microsoft Azure to deliver scalable, secure, and high-performing digital products. * Build and deploy cloud-native applications using Microsoft Azure, including services like Azure Functions, App Services, API Management, and Azure DevOps.
.NET Developer (C# 8, .NET, Azure / API Focus/ SQL/ NoSQL) This role is ideal for someone who thrives in an Agile environment, enjoys building API-first solutions from the ground up, and is passionate about leveraging Microsoft Azure to deliver scalable, secure, and high-performing digital products. * Build and deploy cloud-native applications using Microsoft Azure, including services like Azure Functions, App Services, API Management, and Azure DevOps.
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Integration Manager
Integration Manager
StepChange Debt Charity
LS2, Leeds, LS2 8ER
£70,000 per annum Plus full benefits package
You have proven expertise in system integration, API design, and AWS cloud-native technologies like Lambda, API Gateway, and Step Functions.
You have proven expertise in system integration, API design, and AWS cloud-native technologies like Lambda, API Gateway, and Step Functions.
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Lead Python Software Developer - AI MarTech SaaS- c£90K 4 Day Week
Lead Python Software Developer - AI MarTech SaaS- c£90K 4 Day Week
Recruitment Revolution
LS1, Leeds
Up to £90,000 DOE + Benefits
Ready to build smarter, faster, AI-driven solutions that transform digital marketing? Want a better work-life balance with our groundbreaking 4 day week model? At Ask BOSCO®, we're on a mission to help brands spend smarter with our award-winning predictive analytics platform. As our Lead Software Developer, you won’t just write code - you’ll shape the future of a high-growth MarTech product, lead technical strategy, and work directly with founders, data scientists, and clients to deliver impactful, intelligent solutions. If you're excited by ownership, innovation, and the chance to make a real mark in a scaling business, this is your opportunity - If you’re looking for a role where your voice matters, your technical leadership is valued, and your work directly influences product growth and innovation, we’d love to hear from you. Lead Python Software Developer
Ready to build smarter, faster, AI-driven solutions that transform digital marketing? Want a better work-life balance with our groundbreaking 4 day week model? At Ask BOSCO®, we're on a mission to help brands spend smarter with our award-winning predictive analytics platform. As our Lead Software Developer, you won’t just write code - you’ll shape the future of a high-growth MarTech product, lead technical strategy, and work directly with founders, data scientists, and clients to deliver impactful, intelligent solutions. If you're excited by ownership, innovation, and the chance to make a real mark in a scaling business, this is your opportunity - If you’re looking for a role where your voice matters, your technical leadership is valued, and your work directly influences product growth and innovation, we’d love to hear from you. Lead Python Software Developer
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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
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6 Month contract initially - Based: Hybrid - Bradford (Max 3 days p/w onsite) Rate: Market rates (via Umbrella company) We have a great opportunity with a world leading organisation where you will be provided with all of the support and development to succeed. A progressive organisation where you can really make a difference. We have a great opportunity for a Python Technical Architect. We are looking for a highly skilled Python Technical Architect to lead the design and development of scalable, high-performance applications and solutions. The ideal candidate will have strong technical leadership skills, deep Python expertise, and a passion for designing clean and robust architectures. Architect and design scalable, secure, and robust backend systems using Python. Define best practices and coding standards for development teams.
6 Month contract initially - Based: Hybrid - Bradford (Max 3 days p/w onsite) Rate: Market rates (via Umbrella company) We have a great opportunity with a world leading organisation where you will be provided with all of the support and development to succeed. A progressive organisation where you can really make a difference. We have a great opportunity for a Python Technical Architect. We are looking for a highly skilled Python Technical Architect to lead the design and development of scalable, high-performance applications and solutions. The ideal candidate will have strong technical leadership skills, deep Python expertise, and a passion for designing clean and robust architectures. Architect and design scalable, secure, and robust backend systems using Python. Define best practices and coding standards for development teams.
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Role Title: Solution Architect - Location: Sheffield - Duration: 31/12/2025 - Rate: £330 per day - PAYE via Umbrella Only - We are seeking a highly skilled and experienced Solution Architect to design and implement scalable, secure, and high-performance IT solutions that align with our business goals. You will collaborate with cross-functional teams to translate business requirements into technical architectures and ensure successful delivery of complex systems. * Analyse business requirements and translate them into architectural blueprints. * Design end-to-end solutions that integrate with existing systems and platforms. * Lead technical teams in the implementation of architectural solutions. * Ensure solutions are scalable, secure, and aligned with enterprise architecture standards. * Collaborate with stakeholders, developers, and project managers to ensure alignme
Role Title: Solution Architect - Location: Sheffield - Duration: 31/12/2025 - Rate: £330 per day - PAYE via Umbrella Only - We are seeking a highly skilled and experienced Solution Architect to design and implement scalable, secure, and high-performance IT solutions that align with our business goals. You will collaborate with cross-functional teams to translate business requirements into technical architectures and ensure successful delivery of complex systems. * Analyse business requirements and translate them into architectural blueprints. * Design end-to-end solutions that integrate with existing systems and platforms. * Lead technical teams in the implementation of architectural solutions. * Ensure solutions are scalable, secure, and aligned with enterprise architecture standards. * Collaborate with stakeholders, developers, and project managers to ensure alignme
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Were looking for a Senior Java Developer for our public sector client based in Leeds on an initial 12-month contract paying up to £700 per day Inside IR35. This role allows hybrid working with an expectation to attend the office 3 days per week. You will need to either hold current BPSS clearance or have the ability to pass it, and be eligible for SC clearance. The successful Senior Java Developer will possess proven skills working with the following * Java 21 (or later) * Test Driven Development (TDD) and Behaviour Driven Development (BDD) * Large microservice architectures * Agile environments and pair programming * Implementing APIs for internal and external use * Building automated test suites in CI/CD environments * Unix/Linux operating systems * Communicating technical concepts to non-technical audiences * Jackson, JAX-RS, Mockito * ActiveMQ or Kafka
Were looking for a Senior Java Developer for our public sector client based in Leeds on an initial 12-month contract paying up to £700 per day Inside IR35. This role allows hybrid working with an expectation to attend the office 3 days per week. You will need to either hold current BPSS clearance or have the ability to pass it, and be eligible for SC clearance. The successful Senior Java Developer will possess proven skills working with the following * Java 21 (or later) * Test Driven Development (TDD) and Behaviour Driven Development (BDD) * Large microservice architectures * Agile environments and pair programming * Implementing APIs for internal and external use * Building automated test suites in CI/CD environments * Unix/Linux operating systems * Communicating technical concepts to non-technical audiences * Jackson, JAX-RS, Mockito * ActiveMQ or Kafka
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This is a 12 month contract, paying £700 per day, inside IR35, hybrid working (3 days per week onsite at the Leeds office). You'll work within an Agile, multidisciplinary team of Developers, Designers, and Analysts. You'll be expected to draw value from collaboration with others, actively seek input from colleagues and value a multidisciplinary team over hierarchy. Day-to-day, you'll be an integral part of that team in designing, creating and improving new and existing products, platforms and transactions across government. * Recent experience with Java 21 (or later). * Excellent understanding of TDD and BDD. * Experience with large microservice architectures. * Experience of working in an Agile environment. * Be willing to work in a pair programming environment. * Have experience in implementing APIs for internal and external use.
This is a 12 month contract, paying £700 per day, inside IR35, hybrid working (3 days per week onsite at the Leeds office). You'll work within an Agile, multidisciplinary team of Developers, Designers, and Analysts. You'll be expected to draw value from collaboration with others, actively seek input from colleagues and value a multidisciplinary team over hierarchy. Day-to-day, you'll be an integral part of that team in designing, creating and improving new and existing products, platforms and transactions across government. * Recent experience with Java 21 (or later). * Excellent understanding of TDD and BDD. * Experience with large microservice architectures. * Experience of working in an Agile environment. * Be willing to work in a pair programming environment. * Have experience in implementing APIs for internal and external use.
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Backend Systems Developer
Backend Systems Developer
Broster Buchanan Ltd
L1, Liverpool
From £55,000 to £65,000 per annum +10% bonus
Broster Buchanan are partnered with a quickly growing eCommerce business who are looking for a Backend Integrations Developer with a strong background in e-commerce systems and backend integrations to join their fast-paced, tech-forward software engineering team. This role will focus on the development and maintenance of scalable, cloud-native software solutions that integrate their e-commerce platform with critical business systems including Warehouse Management, Finance, Inventory, and other back-office applications. The role will be based in their Liverpool office with 2 or 3 days onsite and 2 or 3 days remote working per week. On offer is a salary of £55k - £65k + 10% bonus (with plenty of flexibility for the right person). * Design, develop, and maintain backend integrations between e-commerce systems and ERP/WMS/Finance platforms.
Broster Buchanan are partnered with a quickly growing eCommerce business who are looking for a Backend Integrations Developer with a strong background in e-commerce systems and backend integrations to join their fast-paced, tech-forward software engineering team. This role will focus on the development and maintenance of scalable, cloud-native software solutions that integrate their e-commerce platform with critical business systems including Warehouse Management, Finance, Inventory, and other back-office applications. The role will be based in their Liverpool office with 2 or 3 days onsite and 2 or 3 days remote working per week. On offer is a salary of £55k - £65k + 10% bonus (with plenty of flexibility for the right person). * Design, develop, and maintain backend integrations between e-commerce systems and ERP/WMS/Finance platforms.
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