176 to 200 of 333 ECMAScript Jobs in London

Lead Node Developer/Backend Software Engineer (Node.js API JavaScript) London onsite Do you have strong backend development skills with Node.js combined with a good knowledge of financial markets? You could be progressing your career in a senior, hands-on Node Developer role at a global cryptocurrency market data xxuwjjq ...

instrumental in driving the technology strategy forward at a day-to-day tactical level, solve problems effectively, and come up with innovative solutions. Skills: Javascript, Typescript and React Native or React.js Next.js Typescript GraphQL CI/CD best practices Design systems (Storybook) Rullion celebrates and supports diversity and is committed ...

consulting organisation is essential Must be either SC cleared or eligible Experience working as a Software Engineer Strong Node.JS development experience Strong knowledge of JavaScript Experience working within cloud environments If this role sounds of interest, then please apply with your updated CV. ...

maintainable code that meets industry standards. Implement responsive design patterns to ensure optimal viewing and interaction across a variety of devices. Requirements: Expertise in JavaScript, TypeScript and React. Experience in leading technical products. Is excited to interact with bleeding-edge tech in NFTs, Web 3.0 and the Ethereum blockchain. Benefits ...

native iOS or Android development Strong understanding of mobile UI and UX principles Experience working with real time data streaming Proficiency in TypeScript or JavaScript Nice to have Experience with WebRTC or similar real time communication protocols Background in robotics, IoT, or hardware integrated applications Experience with Bluetooth or WiFi ...

+ Bonus + Package Salary: Up to £120,000 + Bonus + Package Location: London (Hybrid Working) Skills: React as a main language (modern JavaScript/TypeScript) This firm is an elite technology company with exceptionally high standards , known for pushing boundaries and previously setting world records in the tech ...

Vietnam. This is to help foreign students learn English Candidate overview Technical leader/Senior Engineer Must have extensive Python experience SQL JavaScript AWS Guidant, Carbon60, Lorien & SRG - The Impellam Group Portfolio are acting as an Employment Business in relation to this vacancy. ...

influence how much good gets done in the world, you’ll feel right at home here. 💼 Requirements: 2+ years building full-stack applications with JavaScript/TypeScript (React, Next.js, Node, etc) Hands-on experience working with LLM's and RAG High 2.1/First in Computer Science (or similar) from ...

requirements. Required Skills & Experience Proven experience as a ServiceNow Developer , with a focus on GRC modules . Strong understanding of ServiceNow architecture and scripting (JavaScript, Glide API). Experience with ServiceNow integrations using REST/SOAP APIs. Knowledge of ITIL processes and risk/compliance frameworks. Ability to work ...

Strong hands-on experience with ServiceNow platform development, including scripting, configuration, and implementation across ITSM, ITOM, CMDB, and Discovery modules. Strong development experience with Javascript - Mandatory. Strong experience integrating ServiceNow with enterprise systems using REST/SOAP APIs, and IntegrationHub. Good experience mentoring junior developers. Exposure and achievements in greenfield ...

stakeholders 🧠 What we’re looking for • Experience in a Senior Test Analyst role • Strong manual testing background • Automation testing experience (Playwright or similar preferred) • JavaScript application testing experience • Knowledge of modern testing frameworks and best practices • Confident communicator across technical and non-technical teams 🌱 Why consider it? • Growing fintech with ...

Founding Engineer (London/Hybrid) - JavaScript We’re an early-stage startup building an AI-driven platform in the capital markets space, with a clear mission: use AI to radically reduce the complexity of a traditionally under-served function. Our MVP is live, we have early customers, and strong relationships ...

Engineering and Shift-Left practices. Desirable: Experience with A/V playback technologies, DASH, HLS. Familiar with Xcode, Android Studio, Sauce Labs, WebdriverIO or Javascript-based automation. Team Culture: The team meets weekly in White City and collaborates closely with colleagues across Salford office. You'll have regular opportunities ...

Power Automate, Power BI). Strong understanding of data modelling, Dataverse, and integration with external systems. Solid background in coding and development principles (C#, JavaScript, or similar). Familiarity with Azure services and Microsoft 365 ecosystem. Ability to work independently and as part of a collaborative team. Click apply ...

commercial development experience • Advanced PHP • Deep WordPress knowledge (core + internals) • Enterprise WooCommerce experience (non-negotiable) • Advanced Custom Fields (ACF) • MySQL • Tailwind CSS • Vanilla JavaScript • Git (professional workflows) • Custom theme & plugin development • Server administration experience • PSP/payment processor experience Working Arrangement • Full-time, in-house role in London ...

scale systems sustain-ably through mechanisms like automation. Looking for someone from a software development background Ideal Candidate: Very strong engineering skills in Java, JavaScript or Python Open Telemetry experience Must have Core Java/Python Must have experience as an SRE knowledge of Python Data Structures Strong knowledge ...

scale systems sustain-ably through mechanisms like automation. Looking for someone from a software development background Ideal Candidate: Very strong engineering skills in Java, JavaScript or Python Open Telemetry experience Must have Core Java/Python Must have experience as an SRE knowledge of Python Data Structures Strong knowledge ...

technical stakeholders Supporting adoption through documentation and training The Profile Around 3-4 years' experience building production-grade tools or applications Strong JavaScript/TypeScript background (not Python-led) Recent hands-on exposure to AI or agent-style workflows (commercial or serious side projects) Experience working in cloud environments, ideally ...

grow our engineering culture 🛠 What We’re Looking For 4+ years of professional experience building complex applications Strong proficiency in Python and the modern JavaScript ecosystem ( React + TypeScript ) Experience with full product lifecycle delivery Excellent communicator with a customer-first mindset 🌍 Why Join Us Be part of a mission ...

Extron, AMX, or similar Relevant certificates in Crestron or QSYS systems would be essential. Proficiency in AV-related programming languages (e.g. C++, Python, C#, JavaScript, HTML) Solid experience configuring audio DSP systems Strong networking knowledge relevant to AV environments Excellent troubleshooting and problem-solving skills Confident communicator, able to work ...

Right Fit If 5+ years building and scaling systems at places that matter Full-stack with serious backend chops: TypeScript/JavaScript, Python, FastAPI, Next.js, PostgreSQL, ClickHouse Ready to ditch colleagues who think in terms of "that's not my job" - that doesn't exist here You care about product ...

commerce features such as Click & Collect and Headless commerce. Communicate technical trade-offs clearly to stakeholders and prioritise development backlogs. Expert in JavaScript, API protocols, message queuing, and synchronising data across POS, WMS, CRM, and loyalty systems. Strong knowledge of Adobe Commerce, Salesforce Commerce Cloud, or Shopify Plus APIs ...

accessibility and clean code standards You Will Need: – Commercial front-end development experience in complex environments – Hands-on Salesforce experience (absolute non-negotiable) – Strong JavaScript, HTML5, CSS3 and modern front-end frameworks – Full Right to Work in the UK – sponsorship and relocation are not available for this role ...

with a truly collaborative attitude. A hands-on, problem-solving approach paired with genuine accountability. Tech Stack You'll Work With Required: React Native, JavaScript, JS frameworks, Redux, GraphQL, AEM, Storybook, Chromatic, TypeScript, UI frameworks Nice to Have: Next.js, Angular, caching technologies, Adobe Experience Manager Why This Role? This ...

Workday report writer and Payroll interfaces PECI & PICOF. Programming Languages: Knowledge of programming languages such as XSLT for data transformation and scripting languages like JavaScript or Groovy for custom integrations. API Integration: Experience with RESTful and SOAP APIs to connect Workday with other systems and applications. Data Formats: Familiarity with ...