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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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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
API Design and Integration
API Design and Integration
60 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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Location: Birmingham, Bristol, Leeds, Newcastle-upon-Tyne, Nottingham, Oldham, Swansea - Salary: £64,108 - £95,600 per annum - Vacancy Type:Permanent - Are you a strategic technology leader ready to shape impactful digital services? Can you lead complex architecture with clarity while supporting and growing your team? If so, we'd love to hear from you! The organisation is building a dedicated Enterprise Architecture (EA) team to act as the bridge between the business and digital and data delivery. The Chief Enterprise Architect leads a team of Enterprise, Technical and Solution Architects to deliver a strategically aligned architecture service, to deliver great customer outcomes and demonstrate business value. They will contribute to the development and delivery of new and evolving operating models, accountable for delivering enterprise-wide architecture capability to
Location: Birmingham, Bristol, Leeds, Newcastle-upon-Tyne, Nottingham, Oldham, Swansea - Salary: £64,108 - £95,600 per annum - Vacancy Type:Permanent - Are you a strategic technology leader ready to shape impactful digital services? Can you lead complex architecture with clarity while supporting and growing your team? If so, we'd love to hear from you! The organisation is building a dedicated Enterprise Architecture (EA) team to act as the bridge between the business and digital and data delivery. The Chief Enterprise Architect leads a team of Enterprise, Technical and Solution Architects to deliver a strategically aligned architecture service, to deliver great customer outcomes and demonstrate business value. They will contribute to the development and delivery of new and evolving operating models, accountable for delivering enterprise-wide architecture capability to
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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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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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Public Cloud Operations Engineer - Marsh McLennan
Public Cloud Operations Engineer - Marsh McLennan
MARSH CORPORATE SERVICES LIMITED
L3, Liverpool, L3 9SJ
Unspecified
Join Our Cloud Platforms Team at Marsh McLennan! Are you a talented and motivated professional with a passion for cloud technology? Were seeking an experienced leader to join our dynamic Cloud Platforms team, based in Liverpool or Milton Keynes. This is an exciting opportunity to take on a pivotal role that will evolve into a management position. The ideal candidate will have proven experience in team management, a strong background in AWS, and a passion for driving innovative cloud solutions. * Operational Support for public cloud technology solutions, primarily focused on the AWS or Azure cloud platforms. * Obtain and maintain an in-depth understanding of AWS and Azure public cloud technologies to ensure all appropriate options are considered to support business initiatives. * Act as a consultant and subject matter expert for Project Managers, Developers, and Engine
Join Our Cloud Platforms Team at Marsh McLennan! Are you a talented and motivated professional with a passion for cloud technology? Were seeking an experienced leader to join our dynamic Cloud Platforms team, based in Liverpool or Milton Keynes. This is an exciting opportunity to take on a pivotal role that will evolve into a management position. The ideal candidate will have proven experience in team management, a strong background in AWS, and a passion for driving innovative cloud solutions. * Operational Support for public cloud technology solutions, primarily focused on the AWS or Azure cloud platforms. * Obtain and maintain an in-depth understanding of AWS and Azure public cloud technologies to ensure all appropriate options are considered to support business initiatives. * Act as a consultant and subject matter expert for Project Managers, Developers, and Engine
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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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Job Title: Data Engineer - Salary: £44,133 – £55,166 plus bonus - Contract: Permanent - Hours: Full-time, Monday to Friday - About Graham & Brown - Welcome to Graham & Brown, where creativity, innovation, and data-driven decision-making combine to deliver exceptional outcomes for our customers worldwide. Since 1946, we’ve been a leading UK-based manufacturer and retailer of premium wallpaper, paint, and home décor products, serving both retail and commercial markets across multiple channels and international sites. At Graham & Brown, we value curiosity, collaboration, and continuous improvement. Our data and analytics capabilities are central to our business, enabling smarter decisions, seamless operations, and better customer experiences. Joining us means being part of a dynamic, forward-thinking team where your technical expertise has a real impact on global operati
Job Title: Data Engineer - Salary: £44,133 – £55,166 plus bonus - Contract: Permanent - Hours: Full-time, Monday to Friday - About Graham & Brown - Welcome to Graham & Brown, where creativity, innovation, and data-driven decision-making combine to deliver exceptional outcomes for our customers worldwide. Since 1946, we’ve been a leading UK-based manufacturer and retailer of premium wallpaper, paint, and home décor products, serving both retail and commercial markets across multiple channels and international sites. At Graham & Brown, we value curiosity, collaboration, and continuous improvement. Our data and analytics capabilities are central to our business, enabling smarter decisions, seamless operations, and better customer experiences. Joining us means being part of a dynamic, forward-thinking team where your technical expertise has a real impact on global operati
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Chroma is currently working with a rapidly growing marketing company that is looking for a talented Web Developer to join their dynamic team. This is an exciting opportunity to be part of a business thats scaling fast and offers career development, hybrid working (23 days per week onsite near Haslingden), and a salary between £30-35K. This B2C marketing company has experienced significant growth and shows no signs of slowing down. Their success is driven by a highly skilled team and a forward-thinking approach to digital marketing and lead generation. With a commitment to innovation, theyre looking for a Web Developer who shares their passion for technology and continuous improvement. As a Web Developer, youll join a small, close-knit development team. Your primary focus will be on back-end development, working on their bespoke, in-house CRM system.
Chroma is currently working with a rapidly growing marketing company that is looking for a talented Web Developer to join their dynamic team. This is an exciting opportunity to be part of a business thats scaling fast and offers career development, hybrid working (23 days per week onsite near Haslingden), and a salary between £30-35K. This B2C marketing company has experienced significant growth and shows no signs of slowing down. Their success is driven by a highly skilled team and a forward-thinking approach to digital marketing and lead generation. With a commitment to innovation, theyre looking for a Web Developer who shares their passion for technology and continuous improvement. As a Web Developer, youll join a small, close-knit development team. Your primary focus will be on back-end development, working on their bespoke, in-house CRM system.
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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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Lead Technical Architect
Lead Technical Architect
Department for Work and Pensions (DWP)
Upperthorpe, S3 7UF
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.
NEWPREMIUM
Lead Technical Architect
Lead Technical Architect
Department for Work and Pensions (DWP)
LS9, Leeds, LS2 7UA
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.
NEWPREMIUM
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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
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