javascript jobs in London

Bachelor’s degree or equivalent practical experience.5 years of experience in technical consulting, product management, or solution architecture and project management in a customer-facing role.Technical experience with advertising technologies, APIs, and data integration.Experience translating business needs into technical specifications.Minimum...

.NET Developer, CMS, Sitecore, Optimizely, Umbraco – London (Tech stack: .NET Developer, CMS, Sitecore, Optimizely, Umbraco, .NET 10.0, C# 14, Angular 21, Agile, Programmer, Full Stack Engineer, Architect, .NET Developer) Established in the 1990s our client is one the fast growing technologies brands across Europe. They have built an unrivalled reputation...

Icertis is seeking a Software Engineer to join our Level 3 Customer Support team, focused on UK government customers. This hybrid role is based in Central London (near Liverpool Street) with at least two days in the office each week and occasional on‑site visits as needed to support sensitive projects.You'll investigate complex issues, implement...

The Scale Factory is seeking a Software Developer in Test to design, build, and implement cutting-edge automation frameworks for client projects in a hybrid London-area setting.You will contribute to QA strategies, influence testing practices, and play a client-facing role to ensure solutions align with business needs. The role suits developers with Agile...

Marsh in the United Kingdom is seeking an experienced Senior Software Engineer to help design, develop and support scalable applications. This hands-on role demands independence, strong Angular and TypeScript/JavaScript skills, and interest in applying AI to improve software delivery and business outcomes.The role is hybrid, requiring three days per week in...

City St George’s, University of London, invites applications for a Research Software Engineer to join the Engineering Department in London, working on the National Tunnelling Data Hub with HS2. You will help deliver a modern, web-based Data Repository for sensor and monitoring data.You will design back-end services, APIs and front-end applications using...

Job Introduction Handelsbanken combines a long-established relationship banking model with secure, resilient, and customer-focused technology. Our technology teams enable the Bank’s decentralised way of working, delivering systems built for stability, trust, and long-term value. Job Introduction We are on a multi-year technology and digital transformation...

LinkedTrade Technologies, a leading SaaS platform for structured products, is seeking a React engineer to join our startup-like team in London. You will contribute to front-end development, collaborate with the Lead engineer, and align with Pre-Sales on UI/UX solutions.You should have 4+ years of web development, expert JavaScript, ReactJS/Redux, HTML/CSS,...

Coralogix is seeking a Software Engineering Team Lead to join their Dashboards and Data Exploration team. You will be responsible for leading a group of engineers in the creation of a cutting-edge dashboarding system for observability data, ensuring high code quality and collaboration with product and design teams.The ideal candidate will have extensive...

Epsilon is seeking a Client Integration Engineer to join our London-based hybrid team. You will design and deliver technical solutions for onboarding new clients, manage relationships, and drive automation within the Epsilon platform.You’ll work across Sales, Account Management, Product and Engineering to produce high-quality results. Ideal candidates have...

Uswitch is seeking a talented engineer to own delivery end to end in a hybrid role based in London. You will design and build services across the stack, with emphasis on frontend and backend APIs while using JavaScript/TypeScript, Go and Clojure. You’ll take ownership of testing, quality, and architectural decisions in a small, autonomous team.The role...

ElevenLabs is hiring an Automations Engineer to build the systems that run our influencer and creator marketing program at scale. You’ll own the automation layer end-to-end: designing, building, and maintaining the workflows and integrations that let a lean team manage thousands of creators without manual busywork.The ideal candidate is a hands-on builder...

DNEG is seeking a Full Stack Developer to join the Artist Tool project within the Data Services workstream. You will work with a software architect to design and implement UI and backend services, including GraphQL and REST endpoints.The role involves coordinating with remote teams across time zones and contributing to documentation and tests. We expect 8+...

## Software Development Engineer (Beacon)Apply: Office - London: Full time: Posted Today: R7240**Job Summary:** We are seeking a skilled and motivated Software Engineer to join our dynamic team at CWAN. The role joins our Beacon Core Engineering team. The Core team develops large part of Beacon Cloud, just above the Platform abstraction. It deals...

Sensor Tower’s digital intelligence platform provides unparalleled insight into market trends, advertising, competitor’s strategies, and consumer/user audience across mobile, web, and gaming. Sensor Tower’s insights are trusted by more than 2,500 enterprises worldwide across tech, retail/commerce, entertainment/media, gaming, consumer packaged goods,...

Описание:Scale AI develops reliable AI systems for important decisions. Its products provide high-quality data and full-stack technologies that power leading AI models and help enterprises and governments build, deploy, and oversee AI applications.Задачи:Partner with public sector clients to understand their challenges and define AI-driven...

Brilliantbrandings is seeking a Full-Stack Engineer to develop high-quality web applications, ensuring UI consistency and quality throughout. The role involves creating software building blocks for both client and internal products, exercising standardization in development processes.The ideal candidate should have a Bachelor's Degree in Computer Science or...

Oh Polly is seeking a talented Junior Shopify Developer to join our London-based digital product team. You will own the front-end of our Shopify platform, collaborating with eCommerce and design to standardise usage across brands and raise the bar on performance and quality.You will implement Liquid templates, manage CI/CD pipelines, optimise Core Web...

Y TREE in London is seeking a passionate Front-end Engineer to join our AI-first Wealth Tech squad. You will build scalable, user‑facing features with JavaScript/TypeScript and React, collaborating with a cross‑functional team to deliver compelling client experiences.Hybrid work is required: 2 days a week in the office. We value independent thinkers who...

Software Developer, C++ / Electronic Trading London | Hybrid | PermanentNcounter is supporting the growth of a specialist electronic trading technology team responsible for building and enhancing high-performance systems operating across global financial markets. We are looking for an experienced Software Developer with strong C++ skills and a background...