javascript developer react jobs in City of Westminster

React Native Developer - Hybrid - Outside IR35 | React Native | FinTech | JavaScript | TypeScript You could be just the right applicant for this job Read all associated information and make sure to apply. 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...

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...

Job Types: Full-time, Permanent Are you the right applicant for this opportunity Find out by reading through the role overview below. Work Location: Remote (UK-based only) Salary: £55,000 depending on experience About Us Asseticom is a dynamic software company specialising in asset management data capture solutions for the built environment. Our platform empowers global engineering...

6 month rolling contract - Inside IR35 - Investment Banking All potential applicants are encouraged to scroll through and read the complete job description before applying. Key Responsibilities · Participate in an agile based software development life-cycle including technical analysis, documentation, development, testing and code reviews. · Collaborate with the production support team for...

Role: React Developer Have you got the right qualifications and skills for this job Find out below, and hit apply to be considered. Location: London (3 days onsite, 2 days remote) Duration: 5 months FTC Salary: £50-£60k After an extremely successful year, a Digital Agency is looking to expand its Web Development team for its growing and varied client base. You will be responsible for working...

Python Developer / Full Stack Engineer (Python Django React) Remote UK to £80k Scroll down to find an indepth overview of this job, and what is expected of candidates Make an application by clicking on the Apply button. Do you have strong Python and Django skills? You could be progressing your career at a tech scale-up, with recent investment, that is helping vulnerable people to reclaim money...

Job Description What you'll do · Design and implement high-quality, reusable, and scalable features in React Native for both SDK and Mobile Application layers. · Help facilitate the complete lifecycle of the mobile application, applying React Native for both iOS and Android platforms · Develop and maintain a React Native-based SDK and Mobile Applications to be used by external teams, with an...

A global financial services firm in London is seeking a Lead Software Engineer specializing in TypeScript and React to enhance and deliver technology products securely. The candidate will build UI functionalities, mentor junior engineers, and ensure high standards in code quality. Expertise in frontend technologies and methodologies is essential, along with substantial experience in application...

Greenpixie, a Climate-Tech Company, working on our cutting-edge software products. Location: Hybrid (2+ days per week in our Central London office) Employment Type: Full-TimeSalary Range: £50 - 70k p.a. dependent on experience. 0.1% - 0.25% share options available. The ideal candidate will have strong hands-on experience with modern web frameworks (ReactJS, Python, AWS) & APIs, as well as a...

Software Engineer – PHP & Golang Apply fast, check the full description by scrolling below to find out the full requirements for this role. Fully Remote – Within UK PHP / Golang / JavaScript £60,000-£65,000 I've recently partnered with a leading Prop-Tech business in London who are looking to add a Software Engineer to their team who specialises in PHP & Golang! The company have seen rapid...

Collaboration with Design TeamYou will collaborate with our design team on feature ideation and user experience. Your role will involve building and maintaining TypeScript components using React, Node, and NextJS. Additionally, you will be responsible for translating Figma designs into modular, reusable UI elements. As part of your responsibilities, you will own projects from concept to...

Overview Design and implement high-quality, reusable, and scalable features in React Native for both SDK and Mobile Application layers. Help facilitate the complete lifecycle of the mobile application, applying React Native for both iOS and Android platforms. Develop and maintain a React Native-based SDK and Mobile Applications to be used by external teams, with an emphasis on stability,...

Software Developer (Web & Internal Tools) Please read the information in this job post thoroughly to understand exactly what is expected of potential candidates. Remote-first | UK-based up to £50,000 PA Dependent on experience We're supporting a well established UK adventure business that has recently brought its website development in-house and is now modernising internal systems and...

About Webigence and Spark Travel Skills, Experience, Qualifications, If you have the right match for this opportunity, then make sure to apply today. 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...

About Locai Labs The following information provides an overview of the skills, qualities, and qualifications needed for this role. Locai Labs is The British Foundational AI Company, based in Paddington, London. We are dedicated to building world-class large language models at the forefront of cost, efficiency, and capability. Our mission is to advance cutting-edge AI from within the UK by...

- Head of Engineering - £110,000–£130,000 + EMI Options - London (mostly onsite) We're partnering with a purpose-led London fintech scaleup solving real-world financial challenges through smart, accessible technology. With solid backing, strong user traction, and a mission that's resonating across the UK, this is a company on the rise. You'll join at a pivotal moment, with the chance to...

About Euphoric: Take the next step in your career now, scroll down to read the full role description and make your application. Euphoric builds AI-first employee benefits administration software for the world's largest and most prestigious employers. Born out of Peppy Health — a fast-growing, category-defining Series B startup — we spun out in May 2025 to tackle a far bigger...

Overview As a Lead Software Engineer (TypeScript React Developer) at JPMorgan Chase within the Commercial and Investment Banking Emerging Markets Team, you are an integral part of an agile team that works to enhance, build, and deliver trusted market-leading technology products in a secure, stable, and scalable way. You execute software solutions through the design, development, and technical...

What you'll do· Design and implement high-quality, reusable, and scalable features in React Native for both SDK and Mobile Application layers. Find out exactly what skills, experience, and qualifications you will need to succeed in this role before applying below.· Help facilitate the complete lifecycle of the mobile application, applying React Native for both iOS and Android platforms· Develop...

Front End Engineer / Developer (TypeScript React Native AI) London / WFH to £80k Ready to apply Before you do, make sure to read all the details pertaining to this job in the description below. Want to work on intellectually and technically challenging AI systems at the cutting edge of what is possible, whilst learning and collaborating with an amazing team and enjoying flexible working and a...