10 of 10 Part-Time JavaScript Developer Jobs in London

Javascript Developer UI – React, Typescript - FinTech Remote First | London (UK) | Up to £115k + Benefits Are you a Javascript developer who thrives in a collaborative, test-driven environment? Do you believe in pair programming, continuous integration, and clean, maintainable code? If so, we’d love to More ❯

Job Title: React Developer/Software Engineer/JavaScript Developer Contract: 6 Months Location: London Area, UK Job Responsibilities: Create extremely well-crafted front-end web applications using React.js and NextJS Support and Develop Server Side Rendered web applications, making use of AWS Lambda Write resilient code More ❯

JavaScript Developer (API & Integrations) Location: Hybrid | London | 3 days per week in the office and the remainder from home Salary: £80,000 - £90,000 12 month fixed term contract. About the Role: Synchro is currently working exclusively with a high growth online digital ecommerce business who are now … of the UK’s leading brands in their sector. As part of their next phase of digital transformation, they are looking to hire a JavaScript Engineer to join the team. We are looking for a Software Engineer with strong API integration experience to play a key role in building … on modern cloud-based solutions, this role is for you. You don’t need to be a TypeScript expert, but a solid understanding of JavaScript and how API’s interact is essential. Responsibilities: Deliver a robust infrastructure to support eCommerce re-platforming initiatives and enable future automation strategies Leveraging More ❯

Backend Developer - Azure, JavaScript, NoSQL City of London - Onsite 3 days a week 9 month initial contract Up to £600 per day Outside of Scope We are looking for an experienced Senior Backend Developer to join our team on a contract basis. The ideal candidate will have … role is critical to maintaining and enhancing our backend platform, ensuring scalability, reliability, and best practices in development and deployment. Key Skills Strong backend Developer JavaScript Typescript Azure - Ideally Certified NoSQL Working on Mobie Apps - Desirable More ❯

I am currently supporting a leading eCommerce client with a search for a contract Full Stack JavaScript Developer to support with the delivery of their innovative web applications. They are searching for someone with extensive experience using react, TypeScript and node.js. The team are also searching for someone More ❯

Technical Product Manager – Developer Tools/UI Frameworks - Javascript/Typescript Location: Central London (Hybrid – 2 days WFH) Salary: Up to £140,000 Benefits: Private healthcare, gym membership, hardware budget, and more A rare opportunity to join one of the most technically advanced frontend engineering teams in the … world. This high-growth software company has built what many in the industry consider the gold standard in JavaScript developer tools, relied upon by 90% of Fortune 500 companies, major investment banks, and tech-first businesses. Originally started as a side project by engineers for engineers, it has … A Computer Science degree or a similar technical background Experience as a QA Engineer, Product Manager, or Technical Business Analyst A good understanding of JavaScript and frameworks like React or Angular Familiarity with Agile environments and cross-functional team collaboration Strong analytical thinking and attention to detail A user More ❯

NodeJS Software Engineer Salary: £120’000 plus bonus and benefits. NodeJS, JavaScript, React, TypeScript, Full Stack, Financial Trading Harrington Starr has partnered with an innovative Digital Currency Investment Platform Company that specialise in developing unique software systems for clients for invest into Digital Markets. This is an exciting opportunity … you to play a pivotal role within the full software development life cycle. We are looking for an experienced TypeScript Software Engineer with NodeJS, JavaScript, TypeScript and NodeJS and ideally from a Financial Services trading platform background. You will have a degree in computer science from a reputable University … and have a good understanding of JavaScript TypeScript. Key requirements within this opportunity are as follows: Experience with NodeJS Solid experience with JavaScript and TypeScript Experience with TypeScript Experience with Financial Services. Experience with Trading Systems and Front Office Trading environment Any experience with Digital Investments. A More ❯

Angular Software Engineer Angular Material, Angular, UI, HTML5, CSS, NgRX, RXJS, TypeScript, UX Design. London based role - Applicant must be based in the UK – Perm Role Fin-Tech - Portfolio management – £80000 plus bonus and benefits Harrington Starr has partnered with More ❯

a modern DevOps-driven environment. 🔧 What You’ll Be Doing Build and Own the Front-End: Implement sleek, high-performance interfaces using HTML, CSS, JavaScript, and frameworks like React or Angular. Component-Driven Development: Create modular, reusable UI components with a focus on maintainability and scalability. Design Collaboration: Partner … Computer Science, Design, HCI, or related field 5+ years of UI/UX engineering experience with a solid portfolio Strong skills in HTML, CSS, JavaScript, and modern frameworks (React, Angular, etc.) Experience with design tools like Figma, Sketch, Adobe Suite, InVision, or Axure Familiarity with usability testing and user More ❯

Fullstack JavaScript Engineer - Sustainability - Hybrid - £90,000 I am looking for fullstack developers to join a fast growing ecommerce client wit a core focus on sustainability. They are a artisan fragrance maker based in the UK, dedicated to reviving traditional perfumery by crafting natural, organic, and vegan perfumes. After More ❯