senior javascript engineer jobs in Newcastle upon Tyne

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...

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 Ruby on Rails Engineer Location: Hybrid or Remote We’re partnered with clients that are looking to bring in Senior Ruby on Rails Developers. What we’re looking for - 5+ years of experience with Ruby on Rails. - Strong knowledge of RESTful APIs and service-oriented architecture. - Cloud experience with AWS or GCP is an advantage. - Familiarity with front-end technologies (JavaScript,...

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...

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...

You must be eligible for Security Check (SC) clearance. - Applicants must have resided continuously in the UK for the past 5 years. If you're ready to take the next step in your career and thrive in a fast-paced, innovative environment, we want to hear from you!

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.

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,...

Senior Software Engineer Circa £58,000 annually Remote | Full-time We're partnering with one of the world's largest food service and support services companies, operating internationally and serving everything from corporate cafeterias to sports stadiums. This role sits within their procurement solutions team in Birmingham - the tech hub powering billions in purchasing decisions. Why this...

Title: Forward Deployed Engineer – AI & Customer-Facing Technical Leader Location: Remote Travel: Customer visits 4–5 days/month; occasional team gatherings Salary: Senior: €130–150k base + growth trajectory Principal: €160–200k base + package discussion Tech: Python, JavaScript, Azure, AWS, AI, LLM's, RAG Industry: AI Consultancy The Role We’re looking for talented engineers to join our...

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 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, outcome-driven...

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...

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...

The Vacancy Are you a Senior Software Developer looking to make a real impact in healthcare technology? Do you want to work on meaningful products that support medical professionals and trainees across the UK? If so, this could be the perfect opportunity for you. We’re looking for a talented and motivated Senior Software Developer to join the FourteenFish team at Optum UK. You’ll be part of a...

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...

Ciphr has an exciting opportunity for a Senior Full Stack Engineer to join the team as we grow and develop. Your role will be a hands-on development position and you will work across the entire tech stack, designing, developing, testing, and maintaining software applications as well as refining user requirements and acceptance criteria into concise technical documentation. At Ciphr our priority...

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...

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...