lead javascript engineer jobs in Sheffield

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...

Position: Front End JavaScript Developer Reports to: Front End Development Team Lead Hours: 40 hours Location: 3 days in North London office (Monday – Wednesday) Salary: £60 - £80,000 + eligibility for performance bonus Start date: ASAP Purpose of the role: As a Front End Developer you will join one of our multinational Scrum teams to create state-of-the-art software solutions. In all...

Lead Developer London - Hybrid 1/2 days in office £85,000 - £100,000 About Simmer We're Simmer Eats, one of Europe's fastest-growing food brands. We've grown 10x in the last year, and we're building the next phase of scale on a modern commerce and technology stack. Our mission is simple: make healthy eating effortless. High-protein, great-tasting meals delivered straight to customers' doors,...

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.

You will have served a minimum of a full apprenticeship in electrical engineering. Ideally working within a heavy manufacturing environment carrying out system accuracy tests, temperature uniformity surveys and instrument calibrations on gas fired furnaces. PLC programming skills required on Siemens S5/7, Allen Bradley, Mitsubishi.

Lead Controls Engineer Siemens TIA Portal South Yorkshire - Permanent - £65-70k + Overtime = £70-80k total earnings + company car or allowance integrated into total package if preferred ***Headlines for Lead Controls Engineer role Growing department, working in a robust and growing industry, company is a Siemens partner xujxxms and specialist, opportunity to define code structures and influence...

Job Description Bachelor’s or Master’s degree in Computer Science, Engineering or a relevant discipline. • 10+ years’ experience in engineering roles, with a minimum of 5 in a senior or principal engineering position. • Technical proficiency in Database technologies, relational, nosql, distributed sql, deployed on IaaS or part of DBaaS. Strong understanding of consumer use case and how...

Bachelor’s or Master’s degree in Computer Science, Engineering or a relevant discipline. • 10+ years’ experience in engineering roles, with a minimum of 5 in a senior or principal engineering position. • Technical proficiency in Database technologies, relational, nosql, distributed sql, deployed on IaaS or part of DBaaS. Strong understanding of consumer use case and how databases infrastructure...

Carbon Emission/Green Tech Start-up | Lead & Full Stack Engineer | LDN 2 Days Per Week | £50K - £120K + Healthy Equity Company: I'm looking for Full Stack Engineers who are excited about elegant systems as they are about real-world impact. Their mission is to reduce carbon emissions in the UK building a razor sharp platform for heat pumps to be installed in homes up and down the...

Lead Electrical Protection Engineer 6 month contract initially Inside IR35 – Remote working 40 hours per week Job Summary: The preferred candidate is responsible for design preparation based on customer specification, conduct engineering activities from design stage until site commissioning and acts as a technical interface between customer and technical community. In-depth hands-on...

Role: Lead Test Engineer Contract Length: 12 Months Location: Hybrid – 3 days per week in office (except London). So Birmingham, Blackpool, Leeds, Manchester or Newcastle Must haves: - Significant experience leading and testing micro services - Functional and non functional testing - Hands on experience in automation testing Leadership skills - Experience leading microservices...

You will oversee 2–3 backend squads, shaping long-term microservices architecture using Java 21 and AWS. This role balances strategic technical leadership with hands-on mentorship to drive engineering excellence, security, and scalable system design. Why this role is remarkable:

Job Title: Lead Electrical Design Engineer Location: Remote Sector: Energy / EV Infrastructure / Renewable Power Type: Permanent Company Overview Our client is a leading developer of advanced energy infrastructure projects, delivering large-scale grid connections, battery energy storage systems (BESS), and charging hubs across the UK. They are driving the transition to a smarter, cleaner...

HV Plant (Primary Design) Team Lead Location: United Kingdom (remote working available) Salary: up to £90,000 (+ benefits) Turner Lovell are recruiting on behalf of a leading utility infrastructure and engineering services provider delivering high-voltage power and grid connection projects across the UK. As part of continued growth within their power engineering division, our client is seeking...

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...

Lead Controls Engineer Siemens TIA Portal South Yorkshire - Permanent - £65-70k + Overtime = £70-80k total earnings + company car or allowance integrated into total package if preferredHeadlines for Lead Controls Engineer role Growing department, working in a robust and growing industry, company is a Siemens partner and specialist, opportunity to define code structures and influence technology...

Lead Platform Engineer London / WFH to £150k Are you a platform engineering technologist with start-up experience and a first class education looking for a new opportunity? You could be joining a small Fintech start-up run by small, successful and proven team of finance technology entrepreneurs, backed by Silicon Valley investors, as they build out the product, currently in stealth mode. As a...