senior javascript engineer jobs in Greater London

Benefits ~9% pension contribution ~ Stock Options ~ Health Insurance ~ L&D Budgets This is your chance to perform the job you love and make a difference in society whilst doing it! Help this one-of-a-kind Social Good platform change the world by developing this hyper-growth eCommerce solution. The Company ~$120m VC-backed Scale-Up ~ One of the fastest-growing companies in the world ~ 'Fast...

You will have to be comfortable moving quickly and accurately, and be brilliant at continually re-prioritizing what must be done to keep Atominvest growing at pace.

You should have a strong interest in web-based software development and additional experience in the financial services technology/ asset management space would be a bonus.

We are currently looking for creative and technical graduates to join a leading financial institution as Graduate Software Developers in the summer 2026. With a perspective on actions today that shape tomorrow. This firm is an innovative, global trading firm. In an ever-changing world, they pride ourselves in offering a unique service. They strive to be the best in their field through exceptional...

Position: Web Scraping Engineer - Javascript, Typescript Company: FlatPlan Website: https://flatplan.io Work hours: 10am - 6pm GMT / Mon - Fri Holidays:29 days Summary Hi, I’m Kieran, CEO at FlatPlan. We’re a SaaS business that enables media companies to deliver breaking news articles to millions of people on Apple devices. We’re a small, passionate team that work closely with some...

We're partnering exclusively with one of London's most prestigious trading powerhouses to hire a standout Front-End Software Engineer — someone who lives and breathes elegant UI engineering and wants to build products that matter at millisecond scale. This is your chance to work at the core of high-performance trading tech, crafting ultra-fast, hyper-polished interfaces used by some of the...

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.

Job Description React Native Developer - Hybrid - Outside IR35 | React Native | FinTech | JavaScript | TypeScript We’re working with a fast-growing FinTech in London that’s building next-generation mobile products used by thousands of customers daily. They’re looking for an experienced React Native Developer to join the team on a contract basis, contributing to high-impact features across their...

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...

React Native Developer - Hybrid - Outside IR35 React Native FinTech JavaScript TypeScript We re working with a fast-growing FinTech in London that s building next-generation mobile products used by thousands of customers daily. They re looking for an experienced React Native Developer to join the team on a contract basis, contributing to high-impact features across their mobile platform....

Senior Software Engineer / Developer (Full Stack JavaScript) London to £100k Opportunity to progress your career in a senior, hands-on Software Engineer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 carbon neutral targets, the company has been established 10...

You will have to be comfortable moving quickly and accurately, and be brilliant at continually re-prioritizing what must be done to keep Atominvest growing at pace.

You should have a strong interest in web-based software development and additional experience in the financial services technology/ asset management space would be a bonus.

This Senior JavaScript Engineer role is with a startup who are one of fastest growing in their field. They’ve just gone through a round of funding and need to up their productivity so are looking for an extra pair of hands to join their team in Mayfair. Good amount of tech on site including Python, React, Redux, and Node. Knowledge in some of these areas would be ideal and your tasks will...

Job Description 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...

Senior Solutions Engineer (.NET) Do you enjoy working directly with customers to solve real integration problems? Are you comfortable translating business requirements into scalable technical solutions? Looking for a role where you can combine technical depth with strong client-facing work? My client is a cloud-based SaaS platform operating at scale, supporting enterprise customers with complex...

Job Description Senior Software Engineer Lead complex engineering work | Azure | .NET | Distributed Systems At GTreasury, we build software that sits at the heart of the CFO’s office. Our SaaS platform handles complex financial workflows at global scale - and we’re investing heavily in the next phase of growth. We’re hiring a Senior Software Engineer who enjoys solving hard problems,...

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).

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...

We are currently looking for creative and technical graduates to join a leading financial institution as Graduate Software Developers in the summer 2026. With a perspective on actions today that shape tomorrow. This firm is an innovative, global trading firm. In an ever-changing world, they pride ourselves in offering a unique service. They strive to be the best in their field through exceptional...

Job Description React Native Developer - Hybrid - Outside IR35 | React Native | FinTech | JavaScript | TypeScript We’re working with a fast-growing FinTech in London that’s building next-generation mobile products used by thousands of customers daily. They’re looking for an experienced React Native Developer to join the team on a contract basis, contributing to high-impact features across their...

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...