526 to 550 of 857 JavaScript Jobs in London

small team of developers Drive feature planning and ensure delivery quality Contribute hands-on code where needed Essential Skills Strong recent C++ development (within the last 12 months) Recent JavaScript experience Proven small team leadership Technical planning & architectural input Desirable Skills Vue.js CI/CD pipelines If you're an experienced C++ engineer with recent leadership experience, and you're More ❯

a degree in Computer Science or similar discipline. Responsibilities: - Develop and maintain the integration of LCEVC (MPEG-5 Part 2) into various operating systems, including Android, Chromium, WebRTC, and JavaScript-based web decoders. Work on projects such as adding support for HDR content playback on mobile platforms and enabling LCEVC playback on web browsers. Collaborate with decoder and encoder teams More ❯

house solutions. Your work will have a direct, visible impact on the firm's trading, risk, and operational performance. You will bring at least 5 years of C# and JavaScript development in Middle Office operations. This technology team is small – currently made up of 4 developers – so you will need to be resourceful, proactive, and comfortable taking full responsibility for More ❯

house solutions. Your work will have a direct, visible impact on the firm's trading, risk, and operational performance. You will bring at least 5 years of C# and JavaScript development in Middle Office operations. This technology team is small – currently made up of 4 developers – so you will need to be resourceful, proactive, and comfortable taking full responsibility for More ❯

house solutions. Your work will have a direct, visible impact on the firm's trading, risk, and operational performance. You will bring at least 5 years of C# and JavaScript development in Middle Office operations. This technology team is small – currently made up of 4 developers – so you will need to be resourceful, proactive, and comfortable taking full responsibility for More ❯

house solutions. Your work will have a direct, visible impact on the firm's trading, risk, and operational performance. You will bring at least 5 years of C# and JavaScript development in Middle Office operations. This technology team is small – currently made up of 4 developers – so you will need to be resourceful, proactive, and comfortable taking full responsibility for More ❯

optimise marketing performance, and accelerate growth — and we’re looking for a Technical Web Analyst to join our team. What you’ll do Implement and configure digital analytics tracking (JavaScript/HTML) Work with analytics platforms (e.g. Adobe Analytics, GA4, Amplitude) Manage and troubleshoot Tag Management Systems (GTM, Adobe Launch, Tealium, Ensighten) Perform end-to-end testing, debugging, and QA More ❯

optimise marketing performance, and accelerate growth — and we’re looking for a Technical Web Analyst to join our team. What you’ll do Implement and configure digital analytics tracking (JavaScript/HTML) Work with analytics platforms (e.g. Adobe Analytics, GA4, Amplitude) Manage and troubleshoot Tag Management Systems (GTM, Adobe Launch, Tealium, Ensighten) Perform end-to-end testing, debugging, and QA More ❯

closely with product, engineering, and leadership What we’re looking for: Strong commercial experience building and deploying ML models in production Proficiency in Python and familiarity with TypeScript/JavaScript Experience with NLP or recommendation systems is a bonus Excited by start-ups: product-minded, hands-on, and motivated by impact What’s on offer: £100,000 - £120,000 salary More ❯

closely with product, engineering, and leadership What we’re looking for: Strong commercial experience building and deploying ML models in production Proficiency in Python and familiarity with TypeScript/JavaScript Experience with NLP or recommendation systems is a bonus Excited by start-ups: product-minded, hands-on, and motivated by impact What’s on offer: £100,000 - £120,000 salary More ❯

optimise marketing performance, and accelerate growth — and we’re looking for a Technical Web Analyst to join our team. What you’ll do Implement and configure digital analytics tracking (JavaScript/HTML) Work with analytics platforms (e.g. Adobe Analytics, GA4, Amplitude) Manage and troubleshoot Tag Management Systems (GTM, Adobe Launch, Tealium, Ensighten) Perform end-to-end testing, debugging, and QA More ❯

closely with product, engineering, and leadership What we’re looking for: Strong commercial experience building and deploying ML models in production Proficiency in Python and familiarity with TypeScript/JavaScript Experience with NLP or recommendation systems is a bonus Excited by start-ups: product-minded, hands-on, and motivated by impact What’s on offer: £100,000 - £120,000 salary More ❯

optimise marketing performance, and accelerate growth — and we’re looking for a Technical Web Analyst to join our team. What you’ll do Implement and configure digital analytics tracking (JavaScript/HTML) Work with analytics platforms (e.g. Adobe Analytics, GA4, Amplitude) Manage and troubleshoot Tag Management Systems (GTM, Adobe Launch, Tealium, Ensighten) Perform end-to-end testing, debugging, and QA More ❯

closely with product, engineering, and leadership What we’re looking for: Strong commercial experience building and deploying ML models in production Proficiency in Python and familiarity with TypeScript/JavaScript Experience with NLP or recommendation systems is a bonus Excited by start-ups: product-minded, hands-on, and motivated by impact What’s on offer: £100,000 - £120,000 salary More ❯

Part 2) into multiple operating environments with both encode and decoder capability, these include: Android (Android X/ExoPlayer for playback) iOS (AVPlayer and VTDS/VTCS frameworks), FFmpeg, JavaScript based web decoders, native Chromium browser and WebRTC, ALVR (Air Light VR). Working with the decoder and encoder teams to support maintenance and improvements in the core C++ codec More ❯

Part 2) into multiple operating environments with both encode and decoder capability, these include: Android (Android X/ExoPlayer for playback) iOS (AVPlayer and VTDS/VTCS frameworks), FFmpeg, JavaScript based web decoders, native Chromium browser and WebRTC, ALVR (Air Light VR). Working with the decoder and encoder teams to support maintenance and improvements in the core C++ codec More ❯

in a hands-on capacity; we welcome candidates from all commercial background environments who can demonstrate: Extensive experience working across enterprise-wide web and software solutions (ideally PHP/Javascript etc); no direct experience in programming is required Experience eliciting requirements from a range of senior business stakeholders being able to convey technical concepts to non-technical audiences and plan More ❯

Part 2) into multiple operating environments with both encode and decoder capability, these include: Android (Android X/ExoPlayer for playback) iOS (AVPlayer and VTDS/VTCS frameworks), FFmpeg, JavaScript based web decoders, native Chromium browser and WebRTC, ALVR (Air Light VR). Working with the decoder and encoder teams to support maintenance and improvements in the core C++ codec More ❯

Part 2) into multiple operating environments with both encode and decoder capability, these include: Android (Android X/ExoPlayer for playback) iOS (AVPlayer and VTDS/VTCS frameworks), FFmpeg, JavaScript based web decoders, native Chromium browser and WebRTC, ALVR (Air Light VR). Working with the decoder and encoder teams to support maintenance and improvements in the core C++ codec More ❯

re looking for Background as a Solutions Engineer, Solutions Architect, or similar Strong experience working directly with enterprise customers (consulting, workshops, exec comms) Development skills are desirable (Python/JavaScript/TypeScript) for prototypes and integrations Strong understanding of AI/LLM concepts (prompting, RAG) Track record in digital experience or enterprise SaaS Highly desirable but not a showstopper A More ❯

in a lean, fast-moving, early-stage environment Required Skills B2B SaaS, fintech, or regulated industry background Familiarity with retrieval-augmented generation (RAG), vector stores, or agentic design patterns JavaScript experience Founding engineer or early startup hire experience Pay range and compensation package: Salary: £80,000 - £120,000 + Equity This isn’t just another role, join at the inflection More ❯

in a lean, fast-moving, early-stage environment Required Skills B2B SaaS, fintech, or regulated industry background Familiarity with retrieval-augmented generation (RAG), vector stores, or agentic design patterns JavaScript experience Founding engineer or early startup hire experience Pay range and compensation package: Salary: £80,000 - £120,000 + Equity This isn’t just another role, join at the inflection More ❯

in a lean, fast-moving, early-stage environment Required Skills B2B SaaS, fintech, or regulated industry background Familiarity with retrieval-augmented generation (RAG), vector stores, or agentic design patterns JavaScript experience Founding engineer or early startup hire experience Pay range and compensation package: Salary: £80,000 - £120,000 + Equity This isn’t just another role, join at the inflection More ❯

in a lean, fast-moving, early-stage environment Required Skills B2B SaaS, fintech, or regulated industry background Familiarity with retrieval-augmented generation (RAG), vector stores, or agentic design patterns JavaScript experience Founding engineer or early startup hire experience Pay range and compensation package: Salary: £80,000 - £120,000 + Equity This isn’t just another role, join at the inflection More ❯

Need to Succeed: Ability to define requirements in Japanese (both written and spoken Japanese) Hands-on development experience in at least one of the following: Python, Ruby, Go, or JavaScript (TypeScript) Experience with infrastructure such as servers, networks, and cloud platforms Practical experience in SPA web application development (especially with Vue.js) Experience developing scripts to automate routine operational tasks Other More ❯