javascript engineer jobs in Sheffield

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...

QA Engineer - £480 inside IR35 Contract (Remote, once a quarter in Cardiff) - Ruby Experience Please note: This is primarily a remote role; however, candidates must be UK-based and able to attend the office once per quarter. La Fosse is partnering with a leading software company to recruit a QA Engineer on a 6-month contract. This role will focus on supporting the migration of a legacy system...

Job Opportunity: PHP Developer (Laravel) Contract Type: Permanent Location: Barnsley – Rare visits to South Yorkshire office Salary: £45,000 We're working with a tech-led business that's looking for a hands-on Mid-level PHP Developer to join their team on a contract basis. This is a high-impact role focused on modernising legacy infrastructure, building scalable backend systems, and...

You will be the crucial link between complex algorithms and the end-user. Key Contributions You'll Make: - Front-End expertise: Design, develop, and own the user interfaces for brand-new AI features, utilizing modern JavaScript frameworks or C# with Blazor to ensure seamless interaction.

Full-Stack Engineer – Remote (UK, Dublin, or Europe) Salary: Up to £80,000 + potential equity Our client is a fast-growing SaaS platform on a mission to help organisations measure and improve their people and culture initiatives. They're a team of innovators, problem-solvers, and builders who believe in creating meaningful, measurable impact — combining AI-driven insights with scalable,...

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...

Lead Software Engineer | React & Node.js | SaaS House *Remote First*, Head Office based in Berkshire. Prism Digital have partnered with a super cool UK/US-based company that creates a suite of SaaS Data Visualisation tools which plug into various applications and cloud/infrastructure environments. Our client essentially provides a Data Visualisation tool akin to DataDog, Prometheus etc. that...

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...

Software Engineer (.Net) SC Cleared Permanent Location: Fully remote / WFH (UK residency only) Salary: £50,000 - £55,000 (+ on-call £5K + a comprehensive range of Employee Benefits) Essential Skills: C#.Net, MVC, ASP.Net, SC Clearance We are looking to recruit an SC Cleared Software Engineer to a leading technology consultancy. This is a home based role with limited travel for team...

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...

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.

Full-Stack Developer (Python / JavaScript/ React) 100% Remote (UK-based) Up to £55,000 | Full-Time About the Role Our HealthTech client is building a cohesive, high-performing in-house engineering team to power their growing technology suite — from web applications and data analytics platforms to AI tools and internal systems. They're looking for a Full-Stack Developer who enjoys working...

Job Summary: We are seeking a detail-oriented Software Quality Assurance (QA) Engineer to ensure the quality and reliability of software applications through rigorous testing and validation. The ideal candidate will have a strong understanding of QA methodologies, excellent analytical skills, and experience in both manual and automated testing. Key Responsibilities: - Design, develop, and...

A prominent IT consultancy is actively searching for a talented Full Stack Engineer to join their team on a permanent basis. The ideal candidate will possess extensive experience in developing robust web applications using Java (Spring Boot), HTML, CSS, and JavaScript/TypeScript. This role offers an exciting opportunity to work on innovative projects, collaborate with a dynamic team, and...

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.

English Speaking Full-Stack JavaScript Developer We're building a next-generation customer management platform used by tens of thousands worldwide. Our product helps modern businesses put their customers at the center, managing workflows, insights, and automation at scale. As a Full-Stack JavaScript Developer, you'll join a global engineering team shaping one of the most critical systems for...

Paydock is a dynamic fintech scaleup dedicated to delivering industry-leading payment orchestration solutions to global financial institutions, major retailers, and non-profits. With teams in 11 countries, we foster a culture of innovation, collaboration, and high-performance as we push the boundaries of fintech worldwide. The Role: Software Engineer (Node.js) We're looking for a skilled...

Euphoric Global - there's nothing average here. We're a home for the gifted, the obsessives, and the corporate misfits. About us We move fast, build bold, and leave bureaucratic BS in the dust. We're AI-first, heart-forward, and on a mission to fix global healthcare; starting with employee benefits tech that actually works. We're early-stage, high-growth, and unapologetically ambitious. If...

RUST Software Engineer 100% Remote Working - Must be based within Europe Daily rates up to $475 (Subject to experience) - Will be paid in USD Duration TBC (Long-Term contract) Ideal start date Monday 15th December 2025 Our client is a Web3/Blockchain organisation that are currently working on some high-profile projects, and they are currently in need of a RUST Software Engineer on a contract...

Full Stack Engineer £50,000 - £65,000 Manchester (Remote First - must be flexible for Ocassional Travel) Candidates must be eligible for UK Security Clearance and hold Sole British Nationality for vetting purposes. Our client, a leader within the Cyber Security space is currently growing their intelligence team who support across cutting-edge public-sector projects within the central...