javascript engineer jobs in Leeds

You will be a great fit if you: - Have 5+ years full-stack experience, with strong JavaScript/TypeScript depth. - Are backend-leaning, with deep Node. js and API experience. - Have previously worked in early-stage start-ups or very lean engineering teams. - Have extensive evidence of being a hands-on individual contributor in complex codebases.

You will be expected to: ● Develop new features working with the data science ● Develop bug fixes and security patches promptly

You must be able to demonstrate the following: ● 6+ years experience full-stack development ● High proficiency with Typescript, React, Next, Azure, Pulumi and Node

C# Developer / Full Stack Engineer (.Net Core JavaScript) St Albans / WFH to £100k Do you have expertise with C# .Net backend development combined with JavaScript skills? You could be progressing 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...

Full Stack JavaScript Engineer – Join a Modern Product Team Oxfordshire-Based | Hybrid | Full-Time | Competitive Salary + Benefits Looking for a full stack role with real impact? Excited by modern architectures, meaningful features, and collaboration? Keen to grow your skills with a forward-thinking engineering team? We’re working with a fast-evolving organisation on the lookout for a...

You will already have worked in a similar startup environment and have a proven track record in delivering, fast, quality and scalable technology platforms, with time pressure to ensure we are first to market.

You will sit inside a cross-cutting technical pod, supported by dedicated UI/UX, PMO and DevOps roles.

Lead Fullstack Engineer Key skills - Node, TypeScript, AWS, JavaScript Read on to fully understand what this job requires in terms of skills and experience If you are a good match, make an application. Location: Remote - 1 day a month in the office near Leeds. Are you a developer who loves solving complex technical challenges, designing elegant systems, and leading a small, high-performing...

Test Engineer Pay of £38,772 plus 28.97% employer pension contributions, hybrid working, flexible hours, and great work life balance. DWP. Digital with Purpose. We are looking for Test Engineers for our Identity & Trust Services team to join our community of tech experts in DWP Digital. We're using fresh ideas and leading-edge tech to build and maintain digital solutions that will be used by...

You will be responsible for supporting the consultancy on test automation proof of concepts as well as presenting and demoing solutions to clients. We are looking for a candidate with the following experience; - Proven experience and ability to create test automation frameworks from scratch using Playwright and JavaScript or Typescript.

Software Development Engineer III Expedia Group brands power global travel for everyone, everywhere. We design cutting-edge tech to make travel smoother and more memorable, and we create groundbreaking solutions for our partners. Our diverse, vibrant, and welcoming community is essential in driving our success. Why Join Us? To shape the future of travel, people must come first. Guided by our...

We're United Repair Centre (URC), and we're on a mission to reshape the clothing industry by extending the life of clothing while putting people first. Our scalable repair approach and platform serves global brands, cuts textile waste, and puts craftsmanship and impact at the heart of the clothing industry, while creating meaningful jobs for people distanced from the labor market. We are now...

QA Engineer – Fintech | Fully Remote (UK) | £60,000–£65,000 About the Role Our client within the Fintech space is scaling rapidly and transforming the way money moves. Quality is at the heart of everything they do, and you'll play a key role in ensuring their products remain robust, secure and seamless as they continue to grow. As part of a collaborative full-stack product team—including...

About Us We are a fast-growing fintech company building modern, scalable platforms that power real-world financial products. Our engineering culture values clean architecture, strong ownership, and pragmatic innovation. We operate in a cloud-native, microservices environment and invest heavily in frontend quality, design systems, and developer experience. The Role As a Lead Fullstack Engineer,...

You will tackle technical challenges that bridge software engineering with real-world manufacturing processes. This role blends hands-on technical expertise with leadership responsibilities, offering both team mentorship and active involvement in architecture, design, process improvement, and code review.

Company Description OmniforceAI is a global AI automation consultancy specialising in agentic AI systems and business transformation. We build AI agents and systems that enable real-time operational intelligence for businesses across finance, consulting, and service industries. Role Description We're looking for an AI Agentic Engineer to support our team in designing and building...

Accelerant is building a new platform that will serve as the backbone of how risk is exchanged in the future. The Product & Technology team is looking for a Full Stack Software Engineer who is passionate about building high quality software systems that are valued by customers. If you join our team, here are some of things you'll be doing: - Working closely with peer engineers, product...

QA Engineer (First SDET Hire) | Social Impact Tech – Remote UK | £45K–£80K Are you scrolling through roles that all feel the same? Would you like to use your engineering skills to genuinely improve the lives of some of the most vulnerable people in the UK? We're working with a mission-led technology company that uses data and technology to help households access the financial support they're...

Senior Front-End Developer Location: Edinburgh (Remote-first, with occasional office visits) Salary: £50,000 – £60,000 per year + competitive benefits About the Role We're looking for a Senior Front-End Developer to join our engineering team and help build an advanced resource planning tool. You'll focus on creating scalable, high-performing, and user-friendly interfaces that deliver an...

Software Engineer Fully Remote | Permanent | Competitive Salary + Benefits Harrington Starr has partnered with a leading Global Payments Technology company who are seeking to hire a Software Engineer to join their growing engineering team. This is an exciting opportunity to work on scalable, resilient systems while contributing to real-world solutions in the financial technology space. Key...

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...

Senior QA Engineer / Team Lead (C# .Net AWS) London / WFH to £100k Do you have expertise with Test Automation combined with leadership skills? You could be joining a growing and profitable scale-up that is viewed as a leading FinTech disruptor in a senior role that will allow you a great deal of influence and progression. As a Senior QA Engineer / Team Lead you will lead the transformation of...