senior javascript engineer jobs in Chelmsford

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...

Senior JavaScript Developer / front End Engineer (Vue 3) Billericay / WFH to £75k Are you a JavaScript web technologist seeking an opportunity to work with a modern tech stack on Greenfield projects? You could be progressing your career in a senior, hands-on role at an eCommerce payments solutions provider that has experienced great success in the last year and is growing as a result. What's...

Senior/Lead Software Engineer – Fully Remote (UK) A global B2B SaaS technology business is building out its European engineering hub and is hiring multiple Senior / Lead Software Engineers (JavaScript) to develop and enhance a mission-critical platform used internationally. These are hands-on individual contributor role with strong ownership — ideal for engineers who enjoy building high-quality...

Senior Python Scraping Engineer Location: Fully remote Salary: £60,000 – £70,000 The Opportunity I'm looking for a Python Scraping Engineer to join a growing AI-focused data team. What You’ll Do - Design, build, and maintain large-scale production web scrapers - Tackle advanced anti-bot and detection systems - Work with browser automation and dynamic, JavaScript-heavy sites - Improve...

Reports to: Technology Director / Executive Sponsor Location: Remote with occasional travel to London (2 times a month) Contract: Full-time, permanent Base Salary: £70,000 – £80,000 location and experience dependent + 10% company bonus scheme and sales commission scheme Why This Role Exists Serve Legal is entering a new chapter: evolving beyond compliance auditing into AI enabled,...

The Role: Pre-Sales Engineer / Solution Architect - Design and develop solutions incorporating Grass Valley products, ranging from single components (such as video switchers, camera chains, or SDI routers) to more complex architectures, including Broadcast IP infrastructures, cloud-based solutions, and software solutions built on GV AMPP. The role supports projects across EMEA, with occasional...

Snr Software Engineering role - Paying between £80-100k, with a 10% bonus (performance related) - Remote but occasional offsites in LDN/worldwide A SaaS platform that provides businesses and researchers with high-quality, vetted human data for studies, surveys, and AI research are looking for 2 excellent Product Engineers. The stack is Python/JavaScript focused, but the crux of what they want...

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...

Azure Cloud Senior Infrastructure Engineer (Lead) Applying for this role is straight forward Scroll down and click on Apply to be considered for this position.Location: Chelmsford & SouthendHybrid working on offer.We're partnering with a well-established organisation with sites in Chelmsford and Southend to recruit an Azure Cloud Senior Infrastructure Engineer (Lead).This is a senior, hands-on...

Job Description A Senior RF Design Engineer will join a thriving Technical Consultancy to work on a complex range of projects from radar systems and advanced robotic systems to sensors and radio communications. The successful Senior RF Design Engineer will be qualified to Degree level in Electronic Engineering or a similar discipline and will bring several years post-graduate experience in...

You will lead complex test projects, support and mentor junior engineers and technicians, and contribute to the development of automated test systems.

We’re expanding our engineering team and hiring a Senior Python Software Engineer to help own and develop an established trading-related application. The system runs in production, processes high-frequency real-time data, and needs careful performance engineering and disciplined testing to keep latency and reliability where they should be. You’ll take meaningful ownership day-to-day, partnering...

Senior Full Stack Engineer Remote (UK) | Full time London office available for optional in person collaboration We’re looking for an experienced Senior Full Stack Engineer to join a small, highly skilled team building a next generation Financial Services Regulatory Compliance platform. This is a hands on role where you’ll work across the stack, leading frontend development with React and...

You will design and deploy robust frontend client, backend services, infrastructure automation, and cloud-native solutions by utilising your software development knowledge and your DevOps proficiency across AWS and GCP.

PRS are currently working with a growing design consultancy client based in Harold Wood who are seeking a Senior Electrical Design Engineer to work on a variety of projects within the Building Services sector. Job Responsibilities: £55-70k - Work on a variety of project sectors, preferable experience (Rail, Local Authorities, Commercial and Educational). - Head up projects - facing clients and...

Senior Performance Engineer - UK Ready to Make a Real Impact? Join e-STORAGE! Who We Are Welcome to e-STORAGE, a proud member of the Canadian Solar Inc. (NASDAQ: CSIQ) family! We’re leading the way in designing, building, and integrating advanced battery energy storage systems for utility-scale projects. Our mission? To accelerate the world’s renewable energy transition and create a more...

Senior Mechanical Engineer (Building Services) Contract: 12-month contract (Outside IR35) Location: Hybrid, Essex Rate: Dependent on Experience About the Role: G2 Recruitment is working with a highly reputable client to find a Senior Mechanical Engineer for a 12-month contract. This is a great opportunity to contribute to retail and commercial projects. Key Requirements: - Senior-level...

You will design, develop, and maintain our platform’s backend infrastructure, focusing on multi-tenant architectures, security, and efficient LLM integration. This role requires a strong understanding of Python web frameworks, cloud services (particularly AWS), and modern AI approaches including working with agentic architecture.

Senior Data Engineer Job Title: Senior Data Engineer Salary Range: £80,000–£100,000 Location / Working model: London | Hybrid This is a critical technical position within a high-growth, forward-thinking organization that specializes in digital innovation. We require an experienced Senior Data Engineer to design, build, and maintain a robust, scalable, and high-performance system that is...

Senior Configuration Engineer - Initial 3 months (likely to be 6 months +) - Remote with travel required 1 p/fortnight to Bristol / Basildon / Edinburgh / Luton / Southampton - £40ph PAYE (Equivalent Umbrella £53ph - £55ph) We are a leading defence and aerospace company delivering advanced technologies and mission-critical systems worldwide. Join us to work on innovative, high-impact projects...