JavaScript jobs in Westminster

Vertus Partners

Data Engineer - Equities - Systematic Quant Fund Job ref: DE/FF/0102 A leading Systematic Trading Firm is looking to bolster their Front Office Data team by hiring a Quantitative Data Engineer. Responsibilities Working hand-in-hand with Trading and Research functions to produce data for trading. Wor

Guidant Global

Title: Senior Conference Producer Location: 240 Blackfriars Road, London, SE1 Job Type: Temporary Contract Function: Marketing Work Type: Hybrid - Onsite 3 Days Per Week Our Company Connect delivers market-leading events and digital content for professionals across Finance, Life Sciences, Foodservic

Vertus Partners

I'm partnering with a renowned bank who are looking for a Lead Engineer to play a key part in scaling the infrastructure of their cloud based platform as they look to expand. They are currently building out their AWS platform and need an experienced hands-on engineer who has a history of improving t

*About Marex** Marex Group plc (NASDAQ: MRX) is a diversified global financial services platform providing essential liquidity, market access and infrastructure services to clients across energy, commodities and financial markets. The group provides comprehensive breadth and depth of coverage across

Technical Implementation Associate/ Software Engineering (Pre-sales team) Location: Munich or London We’re working with a fast-growing Scientific SaaS company that’s just secured $25M+ in Series A funding . They’re on a mission to transform how R&D teams work across chemicals, materials science, and

Guidant Global

Job Title: Adult Day Service Support Worker Location: Borehamwood Day Service Pay: £13.06 per hour Hours: Monday - Friday, 09:00 - 15:00 (5 days per week) About Us Guidant Global is a leading recruitment partner for local authorities, providing high‑calibre care support staff. We are looking for Adu

Guidant Global

Job Description Roadside Recovery Driver – Location: Addlestone (KT15 2QF). Rate: £18.91 per hour for HGV1, £17.24 for HGV2. Shift: Mixed Shift. Contract: End of Sep 2026. About the role As a Roadside Recovery Driver, you help the AA’s customers get back on the road safely and fast. You load vehicle

Guidant Global

Job Title: Adult Support Care Worker Location: Hoddesdon Area Pay: From £13.06 per hour About the Role Are you passionate about making a difference in people's lives? Become part of our dedicated care team supporting service users in Hoddesdon and surrounding areas. What We Offer Pay rates starting

Guidant Global

Field Service Engineer Locations: Gravesend, Longfield, Dartford, Greenhithe, Erith, Bexley and surrounding Join Jungheinrich UK where they offer more than just employment – a career journey built on innovation, sustainability and global impact. We are in the search for a job to join Jungheinrich's

Atominvest Software Ltd

Who is Atominvest Our software powers the world’s leading investment firms (across private equity, VC, infrastructure, credit etc.) enabling them to efficiently manage and drive value across their core business functions of investing, fundraising, operations and sustainability. At Atominvest, you’ll

Scalers

Full Stack JavaScript Engineer -AdTech London, Hybrid Scalers HQ is proud to be partnering with an innovative and fast-growing Media organisation in London. We are looking for a Full Stack JavaScript Engineer to join their collaborative tech team. You'll play a key role in delivering cutting-edg

Version 1

Overview Version 1 has celebrated over 28 years in Technology Services and continues to be trusted by global brands to deliver solutions that drive customer success. Our expertise enables our customers to navigate the rapidly changing Digital-First world we live in. We foster strong partnerships wit

Staffworx

Overview Hiring: Full Stack JS Software Engineer (GraphQL APIs | TypeScript | Cloud-Native) Expert level in GraphQL West London HQ | Hybrid (1–2 days on site) | Outside IR35 | 6-month initial contract (extensions likely) Responsibilities Designing & TypeScript/Node.js services and GraphQL APIs for r

Web Developer (PHP / Javascript / Wordpress)LondonSalary - circa £30,000 to £40,000 + 10% bonus A successful, large-scale engineering business in London is urgently seeking a new Web Developer to join its team and take ownership of all corporate website development across the group. You will lead th

ACI HR Solutions Ltd

Overview Our client is a leading global provider of hospitality technology solutions, seeking a highly experienced and motivated Sales Director – Europe to spearhead commercial growth within a major international hotel group across the European region. This is a unique opportunity to take on a focus

PRODUCTION MANAGER – CREATIVE BUILD Essex UP TO £40,000 - £45,000 DOE Huge immersive projects Established and progressive team Opportunity to grow Travel to some amazing destinations on-site Successful business An exciting Production Manager opportunity to join a well-established events company that

Director - Ecology BNG London Looking for a Ecology role where strategy, leadership and commercial thinking sit at the heart of delivery? This Ecology Director position requires an entreprenuerial spirit and strong commervial acumen. You'll play a pivotal part in directing and expanding strategic ec

Citigroup Inc.

Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global mark

Citi

Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global mark

*Senior JavaScript Engineer contract - Outside IR35 - £575 per day** Leading Ecommerce client is now recruiting a talented ‘Full Stack JavaScript Developer’ who is proficient in front and back-end development. (React/Node.js), with an emphasis on backend Node work initially. This role will be joinin