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Tesco is seeking a Senior React Native Engineer to advance the Digital Design System (DDS) for React Native. You will build reusable UI foundations, APIs, accessibility, and release discipline across iOS, Android, and Web, collaborating with design, product engineering, and DDS peers. You’ll mentor engineers, improve tooling and documentation, and help teams adopt the DDS. The role blends hands-on coding with architectural judgment and strong communication in a hybrid UK setting. #J-18808-Ljbffr

Tesco Stores Limited is seeking a passionate Frontend / Web Software Engineer to build scalable frontend systems and improve customer experience. You will collaborate with product stakeholders, translate requirements into tasks, and contribute to CI/CD pipelines while mentoring peers and sharing kno

Tesco Stores Limited is seeking a passionate Frontend / Web Software Engineer to join our engineering team.

We’re looking for a Senior React Native Engineer to help build and evolve Tesco’s Digital Design System (DDS) implementation for React Native. The DDS Engineering team maintains the shared user interface foundations behind Tesco's digital ecosystem, supporting experiences used by millions of customers and colleagues every day. This is a senior platform engineering role focused on reusable UI foundations: component APIs, accessibility, quality, documentation, release discipline, and developer experience for teams across Tesco’s digital estate. Prior design system experience is valuable, but not required; we’re most interested in strong platform engineers who enjoy building shared foundations used by many teams. You’ll work closely with design, accessibility, product engineering, and DDS peers to keep Tesco experiences consistent, scalable, and easy to build. You'll create reusable components, improve developer tooling and documentation, support consuming teams, and help shape modern design-to-development workflows; using Figma, MCP integrations, agentic cloud workflows and AI-assisted engineering tools. This is not an “AI for AI’s sake” role: the goal is practical engineering impact, better component reuse, fewer inconsistencies, stronger accessibility, faster onboarding, and safer migrations. • Build, maintain, and evolve Tesco DDS platform components for React Native, with clear APIs, strong test coverage, accessibility support, and release discipline., • Translate DDS design intent, tokens, component states, and interaction guidance into production-ready React Native implementation., • Improve developer experience for consuming teams through documentation, examples, onboarding, contribution guidance, support, and migration tooling., • Collaborate with design, accessibility, product engineering, and platform peers to keep DDS implementation aligned across iOS, Android, React Native, and Web., • Use AI-assisted engineering tools responsibly where they improve quality, speed, consistency, or developer self-service., • Help make DDS documentation and component metadata more useful to humans and AI agents through MCP-ready context, examples, and clear constraints., • Lead through senior engineering craft: architectural judgment, code review, mentoring, pragmatic delivery, technical clarity, and high-quality communication., • Relocation Help - professional service to secure relevant working permits and other necessary documents, • Learning opportunities - certified technical training and learning platforms like Udemy, Pluralsight, and O'Reilly, • Learning culture and excellent opportunities to develop your career within your chosen field or something altogether new, • Varied and exciting projects to play a part in - there is always something new and exciting in the pipeline You might know us as a supermarket, technology company or even for our award-winning mobile network. Truth is, we’re all of those things, and much more. Our colleagues work with one goal in mind, helping to make every day a little better for our customers, colleagues and communities all over the world. No two customers are the same, neither are our colleagues. At Tesco, we champion a balance that lets you thrive both in and out of work. Spend 60% of your week collaborating with colleagues at our office locations or local sites and the rest remotely. Whether you're just kicking off your career, juggling passions, or navigating big life events, we’re here to support you. We always welcome a conversation about flexible working, so talk to us throughout your application about how we can support. We're proud to be an accredited Disability Confident Leader, where everyone’s welcome. That’s why we commit to providing a fully inclusive and accessible recruitment process. And if you're interested in joining our team but don't tick every box, don't let that hold you back from applying. #J-18808-Ljbffr

You’ll be a passionate, pragmatic Frontend / Web Software Engineer with an inquisitive mind who is motivated to make change for the better and most importantly put our customer first. You’ll enjoy working as part of a team and be a keen problem solver.Comfortable with modern engineering practices and frontend development tooling and technologies you’ll use innovation to improve the customer experience and efficiency of engineering teams. • Use your in-depth knowledge of JavaScript, TypeScript, React, Node and the ecosystem of tools to develop andimplement scalable frontend systems – ability, ability, Tesco,, • Profile and optimise code, • Apply understanding of cohesion and architectural principles to create well structured, maintainable software, • Identify patterns in code and refactor the code towards them where it increases understanding and/or maintainabilitywith minimal guidance, • Translate requirements into tasks & code, • Develop high quality code that can lead to rapid delivery, ruthlessly pursuing continuous integration and delivery - CICD, • Commit code early and often, demonstrating understanding of version control & branching strategies, • Automate everything by default, • Write secure code by default, • Write maintainable code and observe basic hygiene practices, • Implement relevant project instrumentation, • Follow the best practices of continuous BDD/TDD/Performance/Security/Smoke testing, • Work effectively with product stakeholders to communicate and translate needs into product improvements, • Lead group discussions on system design and understand domain well enough to work with Product Managers to drivevalue, • Support production systems, resolve incidents and perform root cause analysis, • Debug/find complex problems and support/maintain the software solution, • Share knowledge with the wider engineering community, • Mentor and develop others around you, • Produce proof of concepts to evaluate new tools We are looking for people who have a passion for Technology. You will demonstrate experience of different platforms and technologies. • Commercial experience as a Frontend Software Developer, • Best-practices regarding all aspects of web development including design, semantic HTML mark-up, CSS, TypeScript,and related technologies, • Exposure to a variety of JavaScript frameworks and libraries such as: React, Redux, React-Router and testing with ReactTesting Library Jest, Cypress, Playwright, Jasmine, Enzyme, Mocha., • Experience of using Node.js to create high traffic applications. Perhaps using Express.js, Sails, Koa or similar, • Awareness and practice of UI performance best practices, • Understanding and exposure to integrating REST API and GraphQL endpoints, • Strong experience and understanding of industry standard web accessibility, web design & usability; to support sitescross browser/platform/device, • A desire to write readable, maintainable, modular and extendable code, • Exposure to the DevOps model, • Use AI-assisted engineering tools securely and responsibly where they add value, • Participate in on-call and production support processes, • Write and maintain Infrastructure as Code, • Experience in Lean and Agile environments and understanding of principles behind methodologies such as: BDD, ATDDand TDD, • Work collaboratively and win as a team, • Bringing multiple viewport responsive and adaptive web designs to life, • Modern JavaScript/TypeScript frameworks including Remix or Next.js, • Developing web applications within the constraints of “non-standard” devices You might know us as a supermarket, technology company or even for our award-winning mobile network. Truth is, we’re all of those things, and much more. Our colleagues work with one goal in mind, helping to make every day a little better for our customers, colleagues and communities all over the world. No two customers are the same, neither are our colleagues. At Tesco, we champion a balance that lets you thrive both in and out of work. Spend 60% of your week collaborating with colleagues at our office locations or local sites and the rest remotely. Whether you're just kicking off your career, juggling passions, or navigating big life events, we're here to support you. We always welcome a conversation about flexible working, so talk to us throughout your application about how we can support. We’re proud to be an accredited Disability Confident Leader, where everyone’s welcome. If you need support with your application, And if you're interested in joining our team but don't tick every box, don't let that hold you back from applying. #J-18808-Ljbffr

You’re a passionate, pragmatic Frontend / Web Software Engineer with an inquisitive mind, motivated to make change for the better and most importantly put our customer first. You’ll enjoy working as part of a team and be a keen problem solver. Comfortable with modern engineering practices and frontend development tooling and technologies, you’ll use innovation to improve the customer experience and the efficiency of engineering teams. We are looking for people who have a passion for technology. You will demonstrate experience of different platforms and technologies. We expect to see some or all the following: • Commercial experience as a Frontend Software Developer, • Best-practices regarding all aspects of web development including design, semantic HTML mark-up, CSS, TypeScript, and related technologies, • Exposure to a variety of JavaScript frameworks and libraries such as: React, Redux, React-Router and testing with React Testing Library Jest, Cypress, Playwright, Jasmine, Enzyme, Mocha., • Experience of using Node.js to create high traffic applications. Perhaps using Express.js, Sails, Koa or similar, • Awareness and practice of UI performance best practices, • Understanding and exposure to integrating REST API endpoints, • Strong experience and understanding of industry standard web accessibility, web design & usability; to support sites cross browser/platform/device, • A desire to write readable, maintainable, modular and extendable code, • Exposure to the DevOps model, • Experience in Lean and Agile environments and understanding of principles behind methodologies such as: BDD, ATDD and TDD Nice to have Everyone's experience is different, and we understand we need to be realistic, however, we'd be especially keen to speak to you if you have experience with any of the following: • Bringing multiple viewport responsive and adaptive web designs to life, • Modern JavaScript/TypeScript frameworks including Remix or Next.js, • Exposure to state machines and statecharts. Bonus points if this is with XState You might know us as a supermarket, technology company or even for our award-winning mobile network. Truth is, we’re all of those things, and much more. Our colleagues work with one goal in mind, helping to make every day a little better for our customers, colleagues and communities all over the world. No two customers are the same, neither are our colleagues. At Tesco, we champion a balance that lets you thrive both in and out of work. Spend 60% of your week collaborating with colleagues at our office locations or local sites and the rest remotely. Whether you’re just kicking off your career, juggling passions, or navigating big life events, we’re here to support you. We always welcome a conversation about flexible working, so talk to us throughout your application about how we can support. We’re proud to be an accredited Disability Confident Leader, where everyone's welcome. That’s why we commit to providing a fully inclusive and accessible recruitment process. When you join us in this role, you’ll be employed by Tesco Stores Limited, the Tesco legal entity responsible for your employment. We’re all about the little helps. That’s why we make sure our Tesco colleague benefits package takes care of you – both in and out of work. • Annual bonus scheme of up to 20% of base salary., • Holiday starting at 25 days plus a personal day (plus Bank holidays)., • Private medical insurance., • 26 weeks maternity and adoption leave (12 months service required at the qualifying date) at full pay, followed by 13 weeks of Statutory Maternity Pay or Statutory Adoption Pay; we also offer 6 weeks fully paid paternity leave., • Free 24/7 virtual GP service, Employee Assistance Programme (EAP) for you and your family, free access to a range of experts to support your mental wellbeing. The above information is a shortened summary, refer to our policies for full details. You will be responsible for, but not limited to: • Use your in‑depth knowledge of JavaScript, TypeScript, React, Node and the ecosystem of tools to develop and implement scalable frontend systems – ability, ability, Tesco,, • Profile and optimise code, • Apply understanding of cohesion and architectural principles to create well structured, maintainable software, • Identify patterns in code and refactor the code towards them where it increases understanding and/or maintainability with minimal guidance, • Translate requirements into tasks & code, • Develop high quality code that can lead to rapid delivery, ruthlessly pursuing continuous integration and delivery – CICD, • Commit code early and often, demonstrating understanding of version control & branching strategies, • Automate everything by default, • Write secure code by default, • Write maintainable code and observe basic hygiene practices, • Implement relevant project instrumentation, • Follow the best practices of continuous BDD/TDD/Performance/Security/Smoke testing, • Work effectively with product stakeholders to communicate and translate needs into product improvements, • Lead group discussions on system design and understand domain well enough to work with Product Managers to drive value, • Support production systems, resolve incidents and perform root cause analysis, • Debug/find complex problems and support/maintain the software solution, • Share knowledge with the wider engineering community, • Mentor and develop others around you, • Produce proof of concepts to evaluate new tools #J-18808-Ljbffr

Tesco in the United Kingdom is seeking a passionate Frontend / Web Software Engineer to build scalable UI with JavaScript, TypeScript, React and Node, always putting customers first. You will work in a collaborative team, shaping product requirements, implementing CI/CD, and delivering high quality, accessible code across browsers and devices. The role offers hybrid work with office locations in Welwyn Garden City and remote options, supporting flexible working. #J-18808-Ljbffr

We’re looking for a Senior Android Engineer to help build and evolve Tesco’s Digital Design System (DDS) implementation for Android. The DDS Engineering team maintains the shared user interface foundations behind Tesco's digital ecosystem, supporting experiences used by millions of customers and colleagues every day. This is a senior platform engineering role focused on reusable UI foundations: component APIs, accessibility, quality, documentation, release discipline, and developer experience for teams across Tesco’s digital estate. Prior design system experience is valuable, but not required; we’re most interested in strong platform engineers who enjoy building shared foundations used by many teams. You’ll work closely with design, accessibility, product engineering, and DDS peers to keep Tesco experiences consistent, scalable, and easy to build. You’ll create reusable components, improve developer tooling and documentation, support consuming teams, and help shape modern design-to-development workflows; using Figma, MCP integrations, agentic cloud workflows and AI-assisted engineering tools. This is not an “AI for AI’s sake” role: the goal is practical engineering impact, better component reuse, fewer inconsistencies, stronger accessibility, faster onboarding, and safer migrations - Build, maintain, and evolve Tesco DDS platform components for Android, with clear APIs, strong test coverage, accessibility support, and release discipline. • Translate DDS design intent, tokens, component states, and interaction guidance into production-ready Android implementation., • Improve developer experience for consuming teams through documentation, examples, onboarding, contribution guidance, support, and migration tooling., • Collaborate with design, accessibility, product engineering, and platform peers to keep DDS implementation aligned across iOS, Android, React Native, and Web., • Use AI-assisted engineering tools responsibly where they improve quality, speed, consistency, or developer self-service., • Help make DDS documentation and component metadata more useful to humans and AI agents through MCP-ready context, examples, and clear constraints., • Lead through senior engineering craft: architectural judgment, code review, mentoring, pragmatic delivery, technical clarity, and high-quality communication., • Relocation Help - professional service to secure relevant working permits and other necessary documents, • Learning opportunities - certified technical training and learning platforms like Udemy, Pluralsight, and O'Reilly, • Learning culture and excellent opportunities to develop your career within your chosen field or something altogether new, • Varied and exciting projects to play a part in - there is always something new and exciting in the pipeline You might know us as a supermarket, technology company or even for our award-winning mobile network. Truth is, we’re all of those things, and much more. Our colleagues work with one goal in mind, helping to make every day a little better for our customers, colleagues and communities all over the world. No two customers are the same, neither are our colleagues. At Tesco, we champion a balance that lets you thrive both in and out of work. Spend 60% of your week collaborating with colleagues at our office locations or local sites and the rest remotely. Whether you're just kicking off your career, juggling passions, or navigating big life events, we're here to support you. We always welcome a conversation about flexible working, so talk to us throughout your application about how we can support. We're proud to be an accredited Disability Confident Leader, where everyone’s welcome. That’s why we commit to providing a fully inclusive and accessible recruitment process. #J-18808-Ljbffr

We're looking for a Senior Android Engineer to help build and evolve Tesco's Digital Design System (DDS) implementation for Android. The DDS Engineering team maintains the shared user interface foundations behind Tesco's digital ecosystem, supporting experiences used by millions of customers and colleagues every day. This is a senior platform engineering role focused on reusable UI foundations: component APIs, accessibility, quality, documentation, release discipline, and developer experience for teams across Tesco's digital estate. Prior design system experience is valuable, but not required; we're most interested in strong platform engineers who enjoy building shared foundations used by many teams. You'll work closely with design, accessibility, product engineering, and DDS peers to keep Tesco experiences consistent, scalable, and easy to build. You'll create reusable components, improve developer tooling and documentation, support consuming teams, and help shape modern design-to-development workflows; using Figma, MCP integrations, agentic cloud workflows and AI-assisted engineering tools. This is not an "AI for AI's sake" role: the goal is practical engineering impact, better component reuse, fewer inconsistencies, stronger accessibility, faster onboarding, and safer migrations • Build, maintain, and evolve Tesco DDS platform components for Android, with clear APIs, strong test coverage, accessibility support, and release discipline., • Translate DDS design intent, tokens, component states, and interaction guidance into production-ready Android implementation., • Improve developer experience for consuming teams through documentation, examples, onboarding, contribution guidance, support, and migration tooling., • Collaborate with design, accessibility, product engineering, and platform peers to keep DDS implementation aligned across iOS, Android, React Native, and Web., • Use AI-assisted engineering tools responsibly where they improve quality, speed, consistency, or developer self-service., • Help make DDS documentation and component metadata more useful to humans and AI agents through MCP-ready context, examples, and clear constraints., • Lead through senior engineering craft: architectural judgment, code review, mentoring, pragmatic delivery, technical clarity, and high-quality communication., • Relocation Help - professional service to secure relevant working permits and other necessary documents, • Learning opportunities - certified technical training and learning platforms like Udemy, Pluralsight, and O'Reilly, • Learning culture and excellent opportunities to develop your career within your chosen field or something altogether new, • Varied and exciting projects to play a part in - there is always something new and exciting in the pipeline We're all about the little helps. That's why we make sure our Tesco colleague benefits package takes care of you - both in and out of work. • Annual bonus scheme of up to 20% of base salary., • Holiday starting at 25 days plus a personal day (plus Bank holidays)., • Private medical insurance., • 26 weeks maternity and adoption leave (12 months service required at the qualifying date) at full pay, followed by 13 weeks of Statutory Maternity Pay or Statutory Adoption Pay, we also offer 6 weeks fully paid paternity leave., • Free 24/7 virtual GP service, Employee Assistance Programme (EAP) for you and your family, free access to a range of experts to support your mental wellbeing. The above information is a shortened summary, refer to our policies for full details You might know us as a supermarket, technology company or even for our award-winning mobile network. Truth is, we're all of those things, and much more. Our colleagues work with one goal in mind, helping to make every day a little better for our customers, colleagues and communities all over the world. No two customers are the same, neither are our colleagues. At Tesco, we champion a balance that lets you thrive both in and out of work. Spend 60% of your week collaborating with colleagues at our office locations or local sites and the rest remotely. Whether you're just kicking off your career, juggling passions, or navigating big life events, we're here to support you. We always welcome a conversation about flexible working, so talk to us throughout your application about how we can support. We're proud to be an accredited Disability Confident Leader, where everyone's welcome. That's why we commit to providing a fully inclusive and accessible recruitment process. #J-18808-Ljbffr

You’ll be a passionate, pragmatic Frontend / Web Software Engineer with an inquisitive mind who is motivated to make change for the better and most importantly put our customer first. You’ll enjoy working as part of a team and be a keen problem solver. Comfortable with modern engineering practices and frontend development tooling and technologies you’ll use innovation to improve the customer experience and efficiency of engineering teams. Including, but not limited to: • Use your in-depth knowledge of JavaScript, TypeScript, React, Node and the ecosystem of tools to develop and implement scalable frontend systems – ability, ability, Tesco,, • Profile and optimise code, • Apply understanding of cohesion and architectural principles to create well structured, maintainable software, • Identify patterns in code and refactor the code towards them where it increases understanding and/or maintainability with minimal guidance, • Translate requirements into tasks & code, • Develop high quality code that can lead to rapid delivery, ruthlessly pursuing continuous integration and delivery - CICD, • Commit code early and often, demonstrating understanding of version control & branching strategies, • Automate everything by default, • Write secure code by default, • Write maintainable code and observe basic hygiene practices, • Implement relevant project instrumentation, • Follow the best practices of continuous BDD/TDD/Performance/Security/Smoke testing, • Work effectively with product stakeholders to communicate and translate needs into product improvements, • Lead group discussions on system design and understand domain well enough to work with Product Managers to drive value, • Support production systems, resolve incidents and perform root cause analysis, • Debug/find complex problems and support/maintain the software solution, • Share knowledge with the wider engineering community, • Mentor and develop others around you, • Produce proof of concepts to evaluate new tools We are looking for people who have a passion for Technology. You will demonstrate experience of different platforms and technologies. We expect to see some or all the following: • Commercial experience as a Frontend Software Developer, • Best-practices regarding all aspects of web development including design, semantic HTML mark-up, CSS, TypeScript, and related technologies, • Exposure to a variety of JavaScript frameworks and libraries such as: React, Redux, React-Router and testing with React Testing Library Jest, Cypress, Playwright, Jasmine, Enzyme, Mocha., • Experience of using Node.js to create high traffic applications. Perhaps using Express.js, Sails, Koa or similar, • Awareness and practice of UI performance best practices, • Understanding and exposure to integrating REST API endpoints, • Strong experience and understanding of industry standard web accessibility, web design & usability; to support sites cross browser/platform/device, • A desire to write readable, maintainable, modular and extendable code, • Exposure to the DevOps model, • Experience in Lean and Agile environments and understanding of principles behind methodologies such as: BDD, ATDD and TDD Everyone’s experience is different, and we understand we need to be realistic, however, we’d be especially keen to speak to you if you have experience with any of the following: • Bringing multiple viewport responsive and adaptive web designs to life, • Modern JavaScript/TypeScript frameworks including Remix or Next.js, • Exposure to state machines and statecharts. Bonus points if this is with XState, • Developing web applications within the constraints of “non-standard” devices You might know us as a supermarket, technology company or even for our award-winning mobile network. Truth is, we’re all of those things, and much more. Our colleagues work with one goal in mind, helping to make every day a little better for our customers, colleagues and communities all over the world. No two customers are the same, neither are our colleagues. At Tesco, we champion a balance that lets you thrive both in and out of work. Spend 60% of your week collaborating with colleagues at our office locations or local sites and the rest remotely. Whether you're just kicking off your career, juggling passions, or navigating big life events, we're here to support you. We always welcome a conversation about flexible working, so talk to us throughout your application about how we can support. We’re proud to be an accredited Disability Confident Leader, where everyone’s welcome. That’s why we commit to providing a fully inclusive and accessible recruitment process. When you join us in this role, you'll be employed by Tesco Stores Limited, the Tesco legal entity responsible for your employment. #J-18808-Ljbffr

We’re looking for a Senior iOS Engineer to help build and evolve Tesco’s Digital Design System (DDS) implementation for iOS. The DDS Engineering team maintains the shared user interface foundations behind Tesco's digital ecosystem, supporting experiences used by millions of customers and colleagues every day. This is a senior platform engineering role focused on reusable UI foundations: component APIs, accessibility, quality, documentation, release discipline, and developer experience for teams across Tesco’s digital estate. Prior design system experience is valuable, but not required; we’re most interested in strong platform engineers who enjoy building shared foundations used by many teams. You’ll work closely with design, accessibility, product engineering, and DDS peers to keep Tesco experiences consistent, scalable, and easy to build. You’ll create reusable components, improve developer tooling and documentation, support consuming teams, and help shape modern design-to-development workflows; using Figma, MCP integrations, agentic cloud workflows and AI-assisted engineering tools. This is not an “AI for AI’s sake” role: the goal is practical engineering impact, better component reuse, fewer inconsistencies, stronger accessibility, faster onboarding, and safer migrations. • Build, maintain, and evolve Tesco DDS platform components for iOS, with clear APIs, strong test coverage, accessibility support, and release discipline., • Translate DDS design intent, tokens, component states, and interaction guidance into production-ready iOS implementation., • Improve developer experience for consuming teams through documentation, examples, onboarding, contribution guidance, support, and migration tooling., • Collaborate with design, accessibility, product engineering, and platform peers to keep DDS implementation aligned across iOS, Android, React Native, and Web., • Use AI-assisted engineering tools responsibly where they improve quality, speed, consistency, or developer self-service., • Help make DDS documentation and component metadata more useful to humans and AI agents through MCP-ready context, examples, and clear constraints., • Lead through senior engineering craft: architectural judgment, code review, mentoring, pragmatic delivery, technical clarity, and high-quality communication., • Relocation Help - professional service to secure relevant working permits and other necessary documents, • Learning opportunities - certified technical training and learning platforms like Udemy, Pluralsight, and O'Reilly, • Learning culture and excellent opportunities to develop your career within your chosen field or something altogether new, • Varied and exciting projects to play a part in - there is always something new and exciting in the pipeline You might know us as a supermarket, technology company or even for our award-winning mobile network. Truth is, we’re all of those things, and much more. Our colleagues work with one goal in mind, helping to make every day a little better for our customers, colleagues and communities all over the world. No two customers are the same, neither are our colleagues. At Tesco, we champion a balance that lets you thrive both in and out of work. Spend 60% of your week collaborating with colleagues at our office locations or local sites and the rest remotely. Whether you're just kicking off your career, juggling passions, or navigating big life events, we're here to support you. We always welcome a conversation about flexible working, so talk to us throughout your application about how we can support. We're proud to be an accredited Disability Confident Leader, where everyone’s welcome. That’s why we commit to providing a fully inclusive and accessible recruitment process. If you need support with your application, click here for more information. And if you're interested in joining our team but don't tick every box, don't let that hold you back from applying. #J-18808-Ljbffr

2 days ago Be among the first 25 applicants This range is provided by Noir. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Azure, Angular 21, Vue.js, TypeScript, Multithreading, RESTful, ASP.NET Core Web API, EF Core 10.0, Programmer, Full Stack Engineer, Architect, .NET Developer) We are pleased to announce that our client, one of the largest and most recognised brands within the music industry, is seeking .NET Developer to work out of their plush offices in the heart of Hertford, Hertfordshire. You will be working on the development of high-availability and highly-transactional .NET / C# applications which will be critical to the launch of their new online music shopping channel. We are seeking .NET Developer candidates with a skill set that encompasses: .NET, .NET Core, C# and Azure SQL. Our client can provide training into: .NET 10.0, ASP.NET Core, C# 14, Azure, Angular 21, Vue.js, TypeScript, Multithreading, RESTful, ASP.NET Core Web API, EF Core 10.0, Solid, DRY, LINQ and MongoDB. My client offers flexible working hours, home working and amazing offices (onsite cinema, pool tables, bar, free canteen, gym). These positions are dope!!! Location: Hertford, Hertfordshire, UK / Remote Working Applicants must be based in the UK and have the right to work in the UK even though remote working is available. Noir continues to be the leading Microsoft recruitment agency; we can help you make the right career decisions! • Mid-Senior level, • Full-time, • Consulting, Information Technology, and Other, • Software Development, Information Services, and IT Services and IT Consulting Referrals increase your chances of interviewing at Noir by 2x Get notified about new Dotnet Developer jobs in Hertford, England, United Kingdom. We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI. #J-18808-Ljbffr

Tesco’s Behavioural Data Platform (BDP) is a high-scale, real-time platform that captures and processes behavioural data from web, mobile, and in-store systems to power analytics and customer experiences. It enables teams to access and act on unified data streams in real time, driving faster, data-driven decision making across the organisation. We’re looking for a Software Development Engineer II to join our collaborative, self-organising team. You’ll contribute to the design and development of high-performance event-driven services that enable personalised customer experiences to millions of users by capturing user behavioural data. This is an excellent opportunity to grow your backend engineering skills, gain hands‑on experience with modern technologies, and contribute to real-world systems that operate at scale. • Developing features for a backend event-driven platform using Java and Spring Boot, • Pairing with more senior engineers to design, implement, test, and ship code, • Learning to use observability tools like New Relic and Splunk to monitor live systems, • Participating in planning sessions and team discussions to understand requirements and contribute ideas, • Writing automated test suites to ensure code correctness and maintainability, • Collaborating with team members to review code and improve development practices, • Developing an understanding of distributed systems, data processing at scale, and performance optimisation, • Creating, maintaining, and deploying applications using CI/CD pipelines, • Gaining hands‑on experience with Kafka, Kubernetes, and managing distributed services, • A working knowledge of Java and an interest in backend development, • Familiarity with object‑oriented programming principles, • Some practical experience building event‑driven services and/or REST APIs, • A willingness to learn and collaborate in a team environment, • Strong communication skills, including the ability to ask questions, seek feedback, and share what you're learning, • Exposure to Spring Boot, NoSQL databases, or cloud services, • Curiosity about performance, scalability, and observability in large-scale systems, • Familiarity with Git, CI/CD pipelines, and containerisation, • Some experience working with platforms like Kafka You might know us as a supermarket, technology company or even for our award‑winning mobile network. Truth is, we’re all of those things, and much more. Our colleagues work with one goal in mind, helping to make every day a little better for our customers, colleagues and communities all over the world. No two customers are the same, neither are our colleagues. At Tesco, we champion a balance that lets you thrive both in and out of work. Spend 60% of your week collaborating with colleagues at our office locations or local sites and the rest remotely. Whether you're just kicking off your career, juggling passions, or navigating big life events, we're here to support you. We always welcome a conversation about flexible working, so talk to us throughout your application about how we can support. We're proud to be an accredited Disability Confident Leader, where everyone’s welcome. That’s why we commit to providing a fully inclusive and accessible recruitment process. And if you're interested in joining our team but don't tick every box, don't let that hold you back from applying. #J-18808-Ljbffr

Sika is a specialty chemicals company with a globally leading position in the development and production of systems and products for bonding, sealing, damping, reinforcing, and protection in the building sector and industry. Sika has subsidiaries in 103 countries around the world, produces in over 400 factories, and develops innovative technologies for customers worldwide. In doing so, it plays a crucial role in enabling the transformation of the construction and transportation industries toward greater environmental compatibility. In 2024, Sika’s around 33,000 employees generated annual sales of CHF 11.76 billion. Join us as IT Access Engineer and help implement, automate, secure and improve our access management solution for Nuage - Sika’s global custom-built R&D data platform! In this role you will be part of a fast-growing Global R&D Digitalization team, transforming how our global R&D function develops and working on wide range of topics - from using traditional data science techniques to optimising operational efficiency along with state-of-the- art AI solutions to identify novel construction materials. This role is designed for remote working with occasional trips to Welwyn Garden City. Your main tasks will be: • Automate and streamline communication between cloud and on-prem systems., • Manage, test and debug user access groups., • Identify and fix security vulnerabilities in the access setup., • Higher education or proven track record of relevant working experience, • 2+ years of working experience with production software in the role of Software Engineer, Software Architect, Data Engineer, Data Scientist or similar, • Excellent knowledge of Python and Java, • Strong understanding of data security principles, • Experience with REST or GraphQL APIs, • Good knowledge in at least one of: Microsoft Azure, ITIL, agile work practices and/or web platform management, • Effective verbal and written communication skills, • Excellent capacity to prioritise work, • HTML/JS knowledge, • RAG and Jira/Confluence knowledge, • Competitive salary, • Holiday 25 days rising to 28 days with service, plus bank holidays, • A company pension contribution of up to 10%, • Private healthcare for you, with option to add family, • Group life cover at 6x your annual salary, • Group Income Protection (PHI) We offer competitive salaries, aligned with local market benchmarks and the specific scope and responsibilities of each role. Compensation is determined based on skills relevant to the position, education and/or training. We are committed to fair and equitable pay practices in accordance with applicable laws and regulations. #J-18808-Ljbffr

At Roche you can show up as yourself, embraced for the unique qualities you bring. Our culture encourages personal expression, open dialogue, and genuine connections, where you are valued, accepted and respected for who you are, allowing you to thrive both personally and professionally. This is how we aim to prevent, stop and cure diseases and ensure everyone has access to healthcare today and for generations to come. Join Roche, where every voice matters. The Engineering - AI Enablement group, within Roche's Computational Sciences Center of Excellence, exists to make AI/ML an everyday utility for the scientists driving drug discovery. As a Senior Machine Learning Engineer, you will build, own, and continuously improve the scalable AI/ML systems, applications, and data infrastructure that unlock the potential of our diverse scientific data, accelerating the discovery and development of life-changing treatments. You will work across a cross-functional ecosystem of computational and research scientists, AI/ML experts, product leaders, and DevOps engineers, spanning the stack to deliver high-impact scientific solutions. This role is based in Welwyn, with onsite working three days per week. Relocation support is not available. You design, develop, and test robust, scalable, and maintainable AI/ML-facing scientific web applications and backend systems. You build tools to evaluate AI/ML model performance and establish new ways to understand and measure AI quality. You partner with product managers and scientists to understand user needs, shape requirements, and translate them into actionable technical specifications and robust architectures. You develop and maintain data systems for collecting, structuring, and storing diverse scientific data that powers advanced analytics, machine learning, and other data-driven initiatives. You implement, adopt, and evaluate new AI/ML algorithms and analytical techniques. You shape how we build contributing to architectural decisions, code reviews, and the evolution of our development processes and tech stack. You span the stack building, owning, and continuously improving systems, and contributing where needed beyond your core area of expertise. You bring a strong technical foundation with a Master's or PhD in Computer Science or a related technical field (or equivalent experience) and established professional experience in machine learning engineering. You have deep ML expertise with expert knowledge of statistics, machine learning theory, and algorithms, and strong proficiency across AI/ML frameworks, libraries, and tools. You optimise for performance and scale with strong knowledge of ML performance optimization and GPU best practices, and hands-on experience of Kubernetes, relational and NoSQL databases or data lakes, and cloud-native architectures in public clouds (ideally AWS). You practise engineering excellence applying proven engineering best practices and building trusted partnerships with internal and external collaborators. You are an excellent communicator and continuous learner who quickly acquires new technologies and languages, and communicates with clarity across scientific, engineering, and product disciplines. • Experience with imaging or biological data and processes., • Experience working with scientists or in a research environment., • Experience with workflow automation, GenAI, and/or agents. A healthier future drives us to innovate. Together, more than 100’000 employees across the globe are dedicated to advance science, ensuring everyone has access to healthcare today and for generations to come. Our efforts result in more than 26 million people treated with our medicines and over 30 billion tests conducted using our Diagnostics products. We empower each other to explore new possibilities, foster creativity, and keep our ambitions high, so we can deliver life-changing healthcare solutions that make a global impact. Let’s build a healthier future, together. The statements herein are intended to describe the general nature and level of work being performed by employees, and are not to be construed as an exhaustive list of responsibilities, duties, and skills required of personnel so classified. Furthermore, they do not establish a contract for employment and are subject to change at the discretion of Roche Products Ltd. At Roche Products we believe diversity drives innovation and we are committed to building a diverse and flexible working environment. All qualified applicants will receive consideration for employment without regard to race, religion or belief, sex, gender reassignment, sexual orientation, marriage and civil partnership, pregnancy and maternity, disability or age. We recognise the importance of flexible working and will review all applicants’ requests with care. At Roche difference is valued and we are proud to be an equal opportunity employer where you are encouraged to bring your whole self to work. #J-18808-Ljbffr

We're looking for a Senior iOS Engineer to help build and evolve Tesco's Digital Design System (DDS) implementation for iOS. The DDS Engineering team maintains the shared user interface foundations behind Tesco's digital ecosystem, supporting experiences used by millions of customers and colleagues every day. This is a senior platform engineering role focused on reusable UI foundations: component APIs, accessibility, quality, documentation, release discipline, and developer experience for teams across Tesco's digital estate. Prior design system experience is valuable, but not required; we're most interested in strong platform engineers who enjoy building shared foundations used by many teams. You'll work closely with design, accessibility, product engineering, and DDS peers to keep Tesco experiences consistent, scalable, and easy to build. You’ll create reusable components, improve developer tooling and documentation, support consuming teams, and help shape modern design-to-development workflows; using Figma, MCP integrations, agentic cloud workflows and AI-assisted engineering tools. This is not an "AI for AI's sake" role: the goal is practical engineering impact, better component reuse, fewer inconsistencies, stronger accessibility, faster onboarding, and safer migrations. • Build, maintain, and evolve Tesco DDS platform components for iOS, with clear APIs, strong test coverage, accessibility support, and release discipline., • Translate DDS design intent, tokens, component states, and interaction guidance into production-ready iOS implementation., • Improve developer experience for consuming teams through documentation, examples, onboarding, contribution guidance, support, and migration tooling., • Collaborate with design, accessibility, product engineering, and platform peers to keep DDS implementation aligned across iOS, Android, React Native, and Web., • Use AI-assisted engineering tools responsibly where they improve quality, speed, consistency, or developer self-service., • Help make DDS documentation and component metadata more useful to humans and AI agents through MCP-ready context, examples, and clear constraints., • Lead through senior engineering craft: architectural judgment, code review, mentoring, pragmatic delivery, technical clarity, and high-quality communication., • Relocation Help - professional service to secure relevant working permits and other necessary documents, • Learning opportunities - certified technical training and learning platforms like Udemy, Pluralsight, and O'Reilly, • Learning culture and excellent opportunities to develop your career within your chosen field or something altogether new, • Varied and exciting projects to play a part in - there is always something new and exciting in the pipeline, • Annual bonus scheme of up to 20% of base salary., • Holiday starting at 25 days plus a personal day (plus Bank holidays)., • Private medical insurance., • 26 weeks maternity and adoption leave (12 months service required at qualifying date) at full pay, followed by 13 weeks of Statutory Maternity Pay or Statutory Adoption Pay, we also offer 6 weeks fully paid paternity leave., • Free 24/7 virtual GP service, Employee Assistance Programme (EAP) for you and your family, free access to a range of experts to support your mental wellbeing. The above information is a shortened summary, refer to our policies for full details You might know us as a supermarket, technology company or even for our award-winning mobile network. Truth is, we're all of those things, and much more. Our colleagues work with one goal in mind, helping to make every day a little better for our customers, colleagues and communities all over the world. No two customers are the same, neither are our colleagues. At Tesco, we champion a balance that lets you thrive both in and out of work. Spend 60% of your week collaborating with colleagues at our office locations or local sites and the rest remotely. Whether you're just kicking off your career, juggling passions, or navigating big life events, we're here to support you. We always welcome a conversation about flexible working, so talk to us throughout your application about how we can support. We're proud to be an accredited Disability Confident Leader, where everyone’s welcome. That’s why we commit to providing a fully inclusive and accessible recruitment process. And if you're interested in joining our team but don't tick every box, don't let that hold you back from applying. #J-18808-Ljbffr

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