javascript developer react jobs in City of Westminster

Position: Front End JavaScript Developer Apply now, read the job details by scrolling down Double check you have the necessary skills before sending an application. 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...

Paragon Alpha are working with a hedge fund famous for mid frequency equity trading, while also having a successful L/S Equity desk running strategies out of London. If your skills, experience, and qualifications match those in this job overview, do not delay your application. The desk need to hire two Quantitative Developers in London, to build signal generation frameworks, back-testing...

A Top-tier London quant fund is hiring a Quantitative Developer to build its reporting and analytics platform that delivers real-time trading insights to hundreds of researchers across all their asset classes. Check below to see if you have what is needed for this opportunity, and if so, make an application asap. If you've already been writing production code in a systematic trading...

Job Role: Lead Software Engineer, React Native Before applying for this role, please read the following information about this opportunity found below. Job Type: Full Time, Permanent Location: London, Hybrid (3 office days a week) Role purpose As a valued member of our engineering team, you will contribute to the development of our innovative application using React Native. Working with a...

You will have 20 work from anywhere days added on top which you can use to make soime weeks 2 days a week from home.

You will be proud to show how you've impacted other parts of a business and delivered results

You will be pushing frameworks and languages for good business reasons

Backend developer to build scalable systems and APIs, working with Node.Js, TypeScript, and SQL/NoSQL databases.

You will be working in a fast-paced environment to develop new website themes and add new features in a complex Next. js-based codebase (including a CMS). This is a great opportunity for the right person to take on a challenging and broad role. Homeflow is operating on a fully remote basis but occasional travel will be required for our company meet ups (bi-annually at most in the UK).

About Webigence and Spark Travel Is this your next job Read the full description below to find out, and do not hesitate to make an application. Webigence has 25 years of experience crafting UX‐first, often highly complex software. Our engineers pair forward‐thinking agile practices with an obsession for intuitive design, shipping products that feel effortless even when the logic underneath is...

Senior Frontend Developer Considering applying for this job Do not delay, scroll down and make your application as soon as possible to avoid missing out. Up to £90,000 Central London - Flexible Hybrid Options Health-Tech A start-up within the health space are seeking a Senior Frontend Developer to lead a high performing squad of engineers building a unique SAAS platform which is radically...

Salary: £40-£45k (DOE) Read on to fully understand what this job requires in terms of skills and experience If you are a good match, make an application. Reporting to: Technical Director Location: Hybrid or fully remote (UK only) Role type: Full time Who we are We're Field — a design-first Shopify Plus e-commerce agency working with premium, high-growth brands. We're a small, senior,...

You will have the opportunity to work on highly impactful products improving the lives of many.

You will be expected to be confident in a product focused environment and be able to work effectively in a small focused team. This is the right role for someone seeking fulfilling and rewarding place of work.

MUST BE BASED IN THE UK TO BE ELIGIBLE. Apply now, read the job details by scrolling down Double check you have the necessary skills before sending an application. Are you an experienced Full-stack Engineer seeking new and exciting opportunities? While we may not have an immediate vacancy, we’re always on the lookout for talented individuals to join our Talent Pool. Who We Are GSK is a...

You should have a passion for both science and engineering, a proven ability to deliver production-ready solutions, and a collaborative spirit to work closely with our product and research teams. Note: the role is 3-4 days per week in the office in London (based in Hammersmith).

You will work closely with product managers, designers, and other engineers to solve complex problems and create intuitive solutions that help simplify financial workflows for our users. You'll have the opportunity to own critical features and contribute to the overall architecture of our platform.

About Us: Are you the right candidate for this opportunity Make sure to read the full description below. We're a VC-backed stealth-mode company building behavioural AI solutions for the retail industry. Our platform is designed from the ground up — no legacy, no patchwork systems — just a clean slate and a clear vision. Our mission is to bring the intelligence of modern machine learning...

You will be encouraged to evangelise and prototype new technologies and approaches to help shape the evolving architecture. The successful candidate must be: - Experienced in Core Java

You will play a pivotal role in high-impact projects across our entire stack, from crafting polished user interfaces in Next. js and React Native to building robust backend services in Python. This is a high-impact opportunity for someone eager to learn fast, take ownership, solve real problems, and help power the next generation of educational technology.

You will work on a diverse range of challenges, from model-serving APIs and data pipelines to infrastructure for intelligent agents and automation frameworks.

You will collaborate closely with the CTO and engineering team to design, build, and scale production systems that integrate AI into real-world applications.

Full Stack Engineer – New Launch Hedge Fund (L/S Equity) Is this the next step in your career Find out if you are the right candidate by reading through the complete overview below. Location: London Type: Full-time (5 days per week on-site in Victoria) A newly launched fundamentally driven long/short equity hedge fund, focused on the European Industrials sector, is seeking a talented Engineer...

At Ripple, we're building a world where value moves like information does today. It's big, it's bold, and we're already doing it. Through our crypto solutions for financial institutions, businesses, governments and developers, we are improving the global financial system and creating greater economic fairness and opportunity for more people, in more places around the world. And we get to do the...