18 of 18 JavaScript Engineer Jobs in the UK excluding London

Senior Full Stack Engineer - JavaScript - React or Vue or Angular - C# .NET - AI - LLM - GenAI - ML As a Senior Full Stack Engineer , you'll join a small, high-impact team building AI-powered features for their products. You will be building systems that automate end-to-end workflows from document processing through to statutory filing to make … end to back-end Design and build performant, secure back-end services that integrate with our AI platform Create user-friendly front-end interfaces for AI features using modern JavaScript frameworks or C# and Blazor Lead technical decision-making within your squad, balancing innovation with pragmatic delivery Drive best practices in code quality, testing, security, and observability Quality & Continuous … production experience building software powered by LLMs/GenAI/ML models - not demos or prototypes, but real systems serving users Strong full-stack capability with expertise in: Modern JavaScript frameworks (React, Vue, Angular, etc.) or Blazor for front-end development C# .NET for back-end services RESTful API design and implementation HTML5, CSS3, and responsive design principles Cloud More ❯

in a supportive, agile setup. Growth opportunities: Be part of a scaling business with a clear path for personal and professional development. Your role: As a Senior Full-Stack JavaScript Engineer, you’ll lead and contribute to the development of a robust SaaS platform that transforms healthcare delivery. Your expertise in Node.js, React, and AWS will drive impactful … solutions, ensuring scalability, security, and performance. Key Responsibilities: Design, build, and maintain scalable full-stack applications using JavaScript/TypeScript, React, and Node.js. Develop and optimise APIs and cloud-based services hosted on AWS. Collaborate with cross-functional teams to define requirements and deliver high-quality solutions. Advocate for best practices in coding, testing, and DevOps. Mentor junior developers More ❯

JavaScript Full-Stack Engineer - Climate-Tech Start-Up - Fully Remote JavaScript Full-Stack Engineer required for a fully remote role in a well-backed Climate-Tech team, you will be looking to join a positive impact business with an exceptional JavaScript/React/Next.js engineering team where you can progress your software engineering career … in a forward-thinking organisation. About the Company: Fast-growing climate-tech start-up with backing from leading climate investors are looking for a full-stack product engineer who can think from a customer point of view while shaping how the product evolves. You’ll work closely with the founders, customers and stakeholders to shape, build, test, and deliver … s potential for this position to evolve into a leadership role in customer success. About you: 5+ years in software development Experience building products end-to-end Full-stack engineer with Strong React/Next.js, experience with Tailwind and UI best practices would be highly beneficial Experience with cloud infrastructure (AWS/Azure/GCP), DevOps and data/ More ❯

JavaScript Full-Stack Engineer - Climate-Tech Start-Up - Fully Remote JavaScript Full-Stack Engineer required for a fully remote role in a well-backed Climate-Tech team, you will be looking to join a positive impact business with an exceptional JavaScript/React/Next.js engineering team where you can progress your software engineering career … in a forward-thinking organisation. About the Company: Fast-growing climate-tech start-up with backing from leading climate investors are looking for a full-stack product engineer who can think from a customer point of view while shaping how the product evolves. You’ll work closely with the founders, customers and stakeholders to shape, build, test, and deliver … s potential for this position to evolve into a leadership role in customer success. About you: 5+ years in software development Experience building products end-to-end Full-stack engineer with Strong React/Next.js, experience with Tailwind and UI best practices would be highly beneficial Experience with cloud infrastructure (AWS/Azure/GCP), DevOps and data/ More ❯

JavaScript Full-Stack Engineer - Climate-Tech Start-Up - Fully Remote JavaScript Full-Stack Engineer required for a fully remote role in a well-backed Climate-Tech team, you will be looking to join a positive impact business with an exceptional JavaScript/React/Next.js engineering team where you can progress your software engineering career … in a forward-thinking organisation. About the Company: Fast-growing climate-tech start-up with backing from leading climate investors are looking for a full-stack product engineer who can think from a customer point of view while shaping how the product evolves. You’ll work closely with the founders, customers and stakeholders to shape, build, test, and deliver … s potential for this position to evolve into a leadership role in customer success. About you: 5+ years in software development Experience building products end-to-end Full-stack engineer with Strong React/Next.js, experience with Tailwind and UI best practices would be highly beneficial Experience with cloud infrastructure (AWS/Azure/GCP), DevOps and data/ More ❯

JavaScript Full-Stack Engineer - Climate-Tech Start-Up - Fully Remote JavaScript Full-Stack Engineer required for a fully remote role in a well-backed Climate-Tech team, you will be looking to join a positive impact business with an exceptional JavaScript/React/Next.js engineering team where you can progress your software engineering career … in a forward-thinking organisation. About the Company: Fast-growing climate-tech start-up with backing from leading climate investors are looking for a full-stack product engineer who can think from a customer point of view while shaping how the product evolves. You’ll work closely with the founders, customers and stakeholders to shape, build, test, and deliver … s potential for this position to evolve into a leadership role in customer success. About you: 5+ years in software development Experience building products end-to-end Full-stack engineer with Strong React/Next.js, experience with Tailwind and UI best practices would be highly beneficial Experience with cloud infrastructure (AWS/Azure/GCP), DevOps and data/ More ❯

JavaScript Full-Stack Engineer - Climate-Tech Start-Up - Fully Remote JavaScript Full-Stack Engineer required for a fully remote role in a well-backed Climate-Tech team, you will be looking to join a positive impact business with an exceptional JavaScript/React/Next.js engineering team where you can progress your software engineering career … in a forward-thinking organisation. About the Company: Fast-growing climate-tech start-up with backing from leading climate investors are looking for a full-stack product engineer who can think from a customer point of view while shaping how the product evolves. You’ll work closely with the founders, customers and stakeholders to shape, build, test, and deliver … s potential for this position to evolve into a leadership role in customer success. About you: 5+ years in software development Experience building products end-to-end Full-stack engineer with Strong React/Next.js, experience with Tailwind and UI best practices would be highly beneficial Experience with cloud infrastructure (AWS/Azure/GCP), DevOps and data/ More ❯

JavaScript Full-Stack Engineer - Climate-Tech Start-Up - Fully Remote JavaScript Full-Stack Engineer required for a fully remote role in a well-backed Climate-Tech team, you will be looking to join a positive impact business with an exceptional JavaScript/React/Next.js engineering team where you can progress your software engineering career … in a forward-thinking organisation. About the Company: Fast-growing climate-tech start-up with backing from leading climate investors are looking for a full-stack product engineer who can think from a customer point of view while shaping how the product evolves. You’ll work closely with the founders, customers and stakeholders to shape, build, test, and deliver … s potential for this position to evolve into a leadership role in customer success. About you: 5+ years in software development Experience building products end-to-end Full-stack engineer with Strong React/Next.js, experience with Tailwind and UI best practices would be highly beneficial Experience with cloud infrastructure (AWS/Azure/GCP), DevOps and data/ More ❯

Software Engineer (Java/JavaScript/Node/Full Stack) Gloucester (Hybrid, 2–3 days on site) £42,000 – £62,000 + £7,000 Annual DV Bonus + Excellent Package | Permanent Our client is a digital intelligence consultancy supporting mission-critical programmes in the UK’s National Security sector. Their engineers design and deliver high-assurance software systems … enable government partners to tackle threats such as terrorism, child exploitation, and serious organised crime. The Role You’ll join a collaborative team developing full-stack solutions in Java, JavaScript, or Node.js — building secure platforms and APIs that process and analyse sensitive data at scale. It’s a technically rich environment, combining software engineering, data, and cloud infrastructure in … projects that directly support the UK’s intelligence mission. Key Responsibilities Build and maintain secure, high-performing applications using Java or JavaScript/Node.js. Work on backend services, APIs, and microservice integrations. Contribute to system design and architecture discussions. Support CI/CD and deployment in AWS-based environments. Participate in Agile ceremonies and peer reviews. What You’ll More ❯

Software Engineer/Full Stack Developer (C# .Net Core AWS JavaScript) St Albans/WFH to £100k Opportunity to progress your career in a senior hands-on role at a technology driven trading company that invest in Sports betting markets, with a flat structure where you will get your voice heard and can make a real impact on … the bottom line, earning significant bonuses. What's in it for you: As a Software Engineer you will earn a competitive package: Salary to £100k Bonus 25 days holiday, rising to 30 after 2 years Enhanced parental leave Contributory pension scheme Private Medical MSDN subscription Discounts for gym membership, travel and cinema Sabbatical after 10 years of service Flexible … working with 2 days work from home per week Your role: As a Software Engineer you'll join an Agile development team to design and develop new features and enhancements to complex Payments and client systems within a microservices environment (300 services). You'll be working with a modern tech stack using C# .Net Core, AWS, Kubernetes, Kafka More ❯

Senior Full-Stack Engineer - Go/JavaScript Salary: £80,000 - £90,000 Location: Fully-remote Tech: Go, JavaScript, .NET About the role: We’re working with a leading organisation in the legal sector, renowned for their award-winning approach to technology-driven innovation, in support of their efforts to strengthen their growing SaaS team. They are looking … for a senior software engineer with strong experience in full-stack development using Go & JavaScript. This is a remote role, and it must be noted that all candidates are required to be based in the UK with full eligibility to work without restriction. Responsibilities: Build and enhance scalable SaaS products across the full stack using Go, JavaScript, and … Maintain high engineering standards through structured, well-organised code and effective use of automation. Required experience: Senior-level full-stack development, with expertise in multiple languages & frameworks (namely Go, JavaScript, React, Angular, .NET). API development & integration, microservices, cloud services, and DevOps practices. Agile methodologies with experience in working within a SaaS environment. Cloud-based data technologies and SQL. More ❯

Senior Full-Stack Engineer - Go/JavaScript Salary: £80,000 - £90,000 Location: Fully-remote Tech: Go, JavaScript, .NET About the role: We’re working with a leading organisation in the legal sector, renowned for their award-winning approach to technology-driven innovation, in support of their efforts to strengthen their growing SaaS team. They are looking … for a senior software engineer with strong experience in full-stack development using Go & JavaScript. This is a remote role, and it must be noted that all candidates are required to be based in the UK with full eligibility to work without restriction. Responsibilities: Build and enhance scalable SaaS products across the full stack using Go, JavaScript, and … Maintain high engineering standards through structured, well-organised code and effective use of automation. Required experience: Senior-level full-stack development, with expertise in multiple languages & frameworks (namely Go, JavaScript, React, Angular, .NET). API development & integration, microservices, cloud services, and DevOps practices. Agile methodologies with experience in working within a SaaS environment. Cloud-based data technologies and SQL. More ❯

Senior Full-Stack Engineer - Go/JavaScript Salary: £80,000 - £90,000 Location: Fully-remote Tech: Go, JavaScript, .NET About the role: We’re working with a leading organisation in the legal sector, renowned for their award-winning approach to technology-driven innovation, in support of their efforts to strengthen their growing SaaS team. They are looking … for a senior software engineer with strong experience in full-stack development using Go & JavaScript. This is a remote role, and it must be noted that all candidates are required to be based in the UK with full eligibility to work without restriction. Responsibilities: Build and enhance scalable SaaS products across the full stack using Go, JavaScript, and … Maintain high engineering standards through structured, well-organised code and effective use of automation. Required experience: Senior-level full-stack development, with expertise in multiple languages & frameworks (namely Go, JavaScript, React, Angular, .NET). API development & integration, microservices, cloud services, and DevOps practices. Agile methodologies with experience in working within a SaaS environment. Cloud-based data technologies and SQL. More ❯

Senior Full-Stack Engineer - Go/JavaScript Salary: £80,000 - £90,000 Location: Fully-remote Tech: Go, JavaScript, .NET About the role: We’re working with a leading organisation in the legal sector, renowned for their award-winning approach to technology-driven innovation, in support of their efforts to strengthen their growing SaaS team. They are looking … for a senior software engineer with strong experience in full-stack development using Go & JavaScript. This is a remote role, and it must be noted that all candidates are required to be based in the UK with full eligibility to work without restriction. Responsibilities: Build and enhance scalable SaaS products across the full stack using Go, JavaScript, and … Maintain high engineering standards through structured, well-organised code and effective use of automation. Required experience: Senior-level full-stack development, with expertise in multiple languages & frameworks (namely Go, JavaScript, React, Angular, .NET). API development & integration, microservices, cloud services, and DevOps practices. Agile methodologies with experience in working within a SaaS environment. Cloud-based data technologies and SQL. More ❯

Senior Full-Stack Engineer - Go/JavaScript Salary: £80,000 - £90,000 Location: Fully-remote Tech: Go, JavaScript, .NET About the role: We’re working with a leading organisation in the legal sector, renowned for their award-winning approach to technology-driven innovation, in support of their efforts to strengthen their growing SaaS team. They are looking … for a senior software engineer with strong experience in full-stack development using Go & JavaScript. This is a remote role, and it must be noted that all candidates are required to be based in the UK with full eligibility to work without restriction. Responsibilities: Build and enhance scalable SaaS products across the full stack using Go, JavaScript, and … Maintain high engineering standards through structured, well-organised code and effective use of automation. Required experience: Senior-level full-stack development, with expertise in multiple languages & frameworks (namely Go, JavaScript, React, Angular, .NET). API development & integration, microservices, cloud services, and DevOps practices. Agile methodologies with experience in working within a SaaS environment. Cloud-based data technologies and SQL. More ❯

Senior Full-Stack Engineer - Go/JavaScript Salary: £80,000 - £90,000 Location: Fully-remote Tech: Go, JavaScript, .NET About the role: We’re working with a leading organisation in the legal sector, renowned for their award-winning approach to technology-driven innovation, in support of their efforts to strengthen their growing SaaS team. They are looking … for a senior software engineer with strong experience in full-stack development using Go & JavaScript. This is a remote role, and it must be noted that all candidates are required to be based in the UK with full eligibility to work without restriction. Responsibilities: Build and enhance scalable SaaS products across the full stack using Go, JavaScript, and … Maintain high engineering standards through structured, well-organised code and effective use of automation. Required experience: Senior-level full-stack development, with expertise in multiple languages & frameworks (namely Go, JavaScript, React, Angular, .NET). API development & integration, microservices, cloud services, and DevOps practices. Agile methodologies with experience in working within a SaaS environment. Cloud-based data technologies and SQL. More ❯

Full Stack Engineer/Developer (C# .Net Core JavaScript AWS) St Albans/WFH to £100k Opportunity to progress your career in a hands-on role at a technology driven trading company that invest in Sports betting markets, with a flat structure where you will get your voice heard and can make a real impact on the bottom … line, earning significant bonuses. What's in it for you: As a Full Stack Engineer/Developer you will earn a competitive package: Salary to £100k Bonus 25 days holiday, rising to 30 after 2 years Enhanced parental leave Contributory pension scheme Private Medical MSDN subscription Discounts for gym membership, travel and cinema Sabbatical after 10 years of service … Flexible working with 2 days work from home per week in a hybrid model Your role: As a Full Stack Engineer you'll join an Agile development team to design and develop new features and enhancements to complex Payments and client systems within a microservices environment (300 services). You'll be working with a modern tech stack using More ❯

Full Stack Engineer/Developer (C# .Net Core JavaScript AWS) St Albans/WFH to £100k Opportunity to progress your career in a hands-on role at a technology driven trading company that invest in Sports betting markets, with a flat structure where you will get your voice heard and can make a real impact on the bottom … line, earning significant bonuses. What's in it for you: As a Full Stack Engineer/Developer you will earn a competitive package: Salary to £100k Bonus 25 days holiday, rising to 30 after 2 years Enhanced parental leave Contributory pension scheme Private Medical MSDN subscription Discounts for gym membership, travel and cinema Sabbatical after 10 years of service … Flexible working with 2 days work from home per week in a hybrid model Your role: As a Full Stack Engineer you'll join an Agile development team to design and develop new features and enhancements to complex Payments and client systems within a microservices environment (300 services). You'll be working with a modern tech stack using More ❯