javascript 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...

Senior JavaScript / TypeScript Engineer | Data Visualisation | 2D Graphics London | to £200,000 depending on exp. I'm hiring a Senior Engineer to work on a widely-used, open-source charting library relied on by thousands of engineers building data-intensive products. This is not a typical frontend role. You’ll be working at the heart of a graphics and visualisation engine — solving problems...

You 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.

Senior Software Engineer (London, Full-Time) Read the overview of this opportunity to understand what skills, including and relevant soft skills and software package proficiencies, are required. About Birl Launched in 2024, Birl has quickly become one of the UK's most exciting circular commerce startups, redefining how resale and recycling can drive growth rather than cost. Birl's...

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.

You will play a key role in building the applications and tools that surface our cloud sustainability insights to customers, contributing to our mission of making cloud computing more environmentally responsible. This role requires a product-minded developer who can own features end-to-end and will work directly with other areas of the business to build amazing things.

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...

Department Tech 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. Employment Type Full-time, London Office Attendance Expectation Hybrid About the role At &Dine, we're building a community of foodies, connecting authentic and talented food makers to customers who are hungry for better food...

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. Experience, qualification, and soft skills, have you got everything required to succeed in this opportunity Find out...

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...

Title: Software Engineer in Test Do you have the following skills, experience and drive to succeed in this role Find out below. Company: Specialist Technology / eCommerce Platform Location: London – 2-3 days a week Salary: up to £60,000 + benefits Tech essentials: Javascript and either Cypress or Playwright Interview process: 3 stage interview process Why should you be interested in this...

UX/UI + Frontend Developer While professional experience and qualifications are key for this role, make sure to check you have the preferable soft skills before applying if required. Thursday Salary: £40-£50K Thursday is a singles IRL events company that organises singles events, trips, dinners, activities, education and media. We're building technology to scale our operations and enhance the...

You will play a critical role in assuring the quality, reliability and robustness of digital solutions across a wide range of client engagements.

You will be responsible for designing, implementing and maintaining high-quality automated testing solutions, providing confidence that systems meet functional and non-functional requirements across accessibility, performance, security and integration.

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.

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...

Job Title: QA Automation Engineer (Python / PyTest / Cosmos DB)-Banking Client Exp Required You could be just the right applicant for this job Read all associated information and make sure to apply. Location: London- 3Days/week Onsite Duration: 6months+ Contract Inside IR35 500GBP/Day Role Overview We are looking for a QA Automation Engineer to join a Pod-based delivery team working on...

Java Software Engineering Manager (x2) - 6 month - 3 days pw onsite London - Circa £650pd outside IR35 Make your application after reading the following skill and qualification requirements for this position. We're looking for a hands-on Java Software Engineering Manager to lead a high-performing team building reliable, scalable systems. You'll balance technical leadership with people...

You will be working on a platform that automates complex data workflows used in mission critical environments. With major global partners, recent investment, and expansion across the UK, Europe, and the US, this is a chance to take ownership of quality engineering in a product that genuinely matters.

You will play a key role in building the applications and tools that surface our cloud sustainability insights to customers, contributing to our mission of making cloud computing more environmentally responsible. This role requires a product-minded developer who can own features end-to-end and will work directly with other areas of the business to build amazing things.

You will work closely with our Talent Acquisition team to build and implement a recruiting strategy that aligns with our strategic objectives while providing an outstanding candidate experience. Join us and be part of a company that is revolutionizing the way we believe about global payments!