senior javascript engineer jobs in Chelmsford

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...

You will be responsible for writing clean and maintainable code that aligns to their business requirements whilst ensuring all engineering work is covered by suitable unit tests within the team. You’ll collaborate with other Software Engineers, Product Owners, Scrum Masters and internal stake holders to support standards, growth and discipline within this product development team.

Senior React Engineer UK Remote (must be UK-based) 6 Month Contract A fantastic opportunity for a Senior React Engineer to join a fast-paced, product-led tech team working on high-impact, customer-facing web applications. This isn't the kind of contract where you're firefighting legacy issues - you'll be building new features from the ground up in a collaborative, modern engineering...

Senior Software Engineer Location: Remote with Sheffield HQ visits 6 times a year Annual Salary: £60,000- £75,000 We are currently looking for Senior Software Engineers that have experience with our Backend tech stack (TypeScript, Node & AWS) Join Our Engineering Evolution at Twinkl At Twinkl, we're not just building software - we're transforming how millions of educators and learners...

Great opportunity for Senior Full Stack Engineers to work remotely for a UK based deeptech start-up operating in the AI and cloud infrastructure space. The business is backed by a VC giant and is in the early stages of its growth. As a Senior Full Stack Engineer, you’ll become part of the founding team and would be responsible for helping them scale the company by playing a key role in shaping...

We’re building the next generation of merchant-first digital solutions and we’re looking for a Senior Software Engineer to help shape it. You’ll join a small, empowered team that values innovation, collaboration, and real-world impact. What You’ll Do - Design and develop backend, service, and portal systems for our payment platform. - Use modern practices such as BDD and CI/CD to deliver...

Senior Java Software Engineer 📍Remote UK | 🌍 Global Fintech | 💳 Merchant-First Payments Ecosystem A high-growth global fintech, renowned for delivering world-class payments-related software and technology, is looking to expand its engineering team. As the company continues to scale its platform to meet growing demand, they’re seeking experienced engineers to join their collaborative,...

You will mentor a small team of 3 talented developers while remaining hands-on with coding and solution design. You’ll help define how software is built, scale systems, and influence the technical direction of a globally used SaaS product. You’ll be supported by a collaborative leadership team that values technical excellence, autonomy, and personal growth.

Join our client at the forefront of AI innovation. They’re shaping the digital foundations that will define how humans and AI learn from each other — pioneering technology that is set to transform the way intelligent systems evolve. The Role We’re seeking Senior Software Engineers with a product builder mindset to help shape and scale a cutting-edge platform. You’ll work across a modern tech...

Principal / Senior-Staff Engineer I’m supporting a global tech company that’s going through an exciting transformation and is looking for a high-impact Principal / Senior-Staff Engineer. This is a hands-on individual contributor role with significant influence across teams and leadership, directly reporting into the CTO. The role is ideal for someone who thrives at the intersection of deep...

Senior Security Engineer, Cloud Salary: up to £110,000 + bonus + benefits Location: UK – 100% Remote This company is undergoing a major cloud transformation and is looking for a Senior Security Engineer with a specialism within Cloud to help shape and secure its modern cloud infrastructure. You’ll work across engineering teams to design scalable, secure cloud infrastructure and embed best...

You must be UK based & have full right to work in the UK. - If this role sparks an interest and you're keen to learn more, Please apply or email me on Tommy@digitalwaffle.

You will translate big ideas into shippable, high quality products by collaborating closely with engineers and designers to solve complex challenges.

You will bring over 7 years of software engineering experience with deep expertise in JavaScript, TypeScript, and React.

You will benefit from team retreats and a professional growth budget to support your development.

Senior Full Stack Engineer (Blazor & MS Stack) Location: Remote-First (we have an office in Old St, London, that you’re welcome to come to as much or little as you like). We also have company bi-annual meets (previously had company off-sites in Paris + The Cotswolds) About Claimit We are a rapidly growing, seed-stage AI Tech startup revolutionising claims management with intelligent...

Senior Full-Stack JavaScript Engineer Salary range: £80-£115k Location: Fully remote (potential x2 days per week in Liverpool Street office from summer 2025) Tech stack: React, TypeScript, Node.js, MongoDB, Azure, IBM Cloud (+ Go for payments) Positions available: x3 We're working with a scaling Fintech company building the platform that automates the entire accounts payable process and also...

Senior React Native Engineer | Up to £90k + Amazing Benefits | Hybrid UK (1 day per month in London office) Maze has been engaged by award-winning UK online retail business who is looking for a Senior React Native Engineer to join its growing team. The company partners with major global brands, attracting over 8 million monthly users. You’ll play a key role in scaling and shaping a highly...

Senior Software Engineer (TypeScript + AWS + Lambda) 12-Month Fixed Term Contract (strong potential to go perm or extend) Full-Time | Fully Remote (UK-based) £70,000 – £80,000 + Benefits We’re looking for an experienced Senior Software Engineer with strong AWS cloud experience to join our team on a 12-month fixed term contract. You’ll play a key role in designing and building scalable,...

Job Description Senior Engineer (x2) / Engineer (x1) Highway Structures Boreham £45,000 - £55,000 Our client is looking to appoint two Senior Engineers and one Engineer to strengthen their highway structures team in Boreham. These roles will support the delivery of complex infrastructure projects including bridge refurbishments, retaining wall design, and structural replacements. Common...

Senior Software Engineer .Net 📍 Location: UK remote | We are working with a high-growth global fintech, renowned for delivering world-class payments-related software and technology. This company is building the next generation of capabilities that power a merchant-first ecosystem. They believe that focused, empowered teams can achieve great things. You’ll be joining a curious, driven, and...

Up to £90,000 Remote, UK & Ireland No Sponsorship Opportunities We’re hiring for our client, a fast-growing global payment processing platform that’s scaling rapidly after a major acquisition. They’re on the lookout for talented .NET Software Engineers to join their journey of building the next generation of API-driven, merchant-first technology. Why join them? They believe empowered teams...