51 to 75 of 213 JavaScript Jobs in London

both feasible to deliver and impactful for customers. Domain & Technical Skills Hands-on experience with modern web development languages/frameworks (eg. HTML, CSS, JavaScript) and general-purpose programming languages (eg. Node, Python), and a proven ability to learn new languages and technical concepts with minimal guidance. Strong understanding ...

Senior Developer - Python, .NET, JavaScript/React, Azure - remote - up to £80k Skills/Experience Proven experience as a senior developer, full-stack developer, software engineer or product engineer in a high-growth product, consultancy or customer delivery setting. Expertise in Python, .NET and JavaScript/React, with a strong … platform, working across APIs, services, user interfaces, data integrations and AI-agent workflows. Develop scalable, secure, cloud-native software using Python, .NET and JavaScript/React, with strong attention to code quality, maintainability and performance. Work across the Azure stack, including Azure OpenAI, Azure AI Foundry, Azure AI Search, Azure ...

governance and assurance processes. Strong technical architecture background - experience designing secure, scalable systems using modern technologies (cloud, open source, and languages like Java, Python, JavaScript or Ruby). Leadership & communication skills - able to guide teams, influence stakeholders, and clearly communicate with both technical and non-technical audiences. Agile & strategic mindset ...

Solid experience with relational databases and SQL knowledge. * An ability to design performant software and an understanding of application performance profiling.Desirable Requirements * Experience with JavaScript web GUIs, particularly React. * Experience working in an investment banking environment. * Experience with multithreaded architectures. * Proactive approach and an ability to prioritise appropriately. * Strong problem ...

developers and shaping platform standards What we're looking for Strong hands-on experience with SharePoint SE and SharePoint Online Proven SPFx development TypeScript, JavaScript, React Experience with C#/.NET, SQL Server, and RESTful API integrations Solid on-prem admin background patching, performance tuning, troubleshooting BCS and ECT experience ...

problem-solving abilities Desirable: Exposure to Prometheus, Grafana, Datadog or New Relic Experience with AWS, Azure or GCP Knowledge of YAML, Python or JavaScript Understanding of Linux security and networking What's on Offer £50,000 salary Hybrid working with just one day in the office every two weeks Direct ...

Technical Skills Strong ServiceNow development experience (3+ years) Hands-on experience with Service Portal Solid background in web technologies including HTML, AngularJS, Bootstrap, CSS, JavaScript, JSON, HTTP, and REST/SOAP Experience with ServiceNow integrations Ability to work in Agile environments Strong troubleshooting and analytical skills Excellent written and verbal ...

architecture Partner closely with Product to challenge and sharpen requirements before they hit the backlog What we're looking for Strong TypeScript/JavaScript and Java/Kotlin NestJS, React, PostgreSQL or MongoDB (Not all required) Hands-on with AWS, Docker, Terraform, and modern CI/CD A genuine, practical ...

track development, testing, and release activities About You Experience & Technical Skills 5+ years of hands-on NetSuite technical development experience Strong proficiency in JavaScript and the SuiteCloud platform Solid understanding of relational databases and SQL Experience working with APIs, integrations, and middleware platforms (e.g., Boomi) Experience managing complex data imports ...

Essential Skills & Experience 5+ years' experience developing solutions on the ServiceNow platform Strong hands-on Service Portal development experience Excellent knowledge of: HTML CSS JavaScript AngularJS Bootstrap JSON REST/SOAP APIs HTTP protocols Experience developing ServiceNow integrations Strong understanding of ServiceNow core platform architecture Experience working within Agile delivery ...

Essential Skills & Experience 5+ years' experience developing solutions on the ServiceNow platform Strong hands-on Service Portal development experience Excellent knowledge of: HTML CSS JavaScript AngularJS Bootstrap JSON REST/SOAP APIs HTTP protocols Experience developing ServiceNow integrations Strong understanding of ServiceNow core platform architecture Experience working within Agile delivery ...

Contribute to integration and platform work as the product evolves. Feed into architecture decisions and raise the engineering bar within the team. Requirements Strong JavaScript fundamentals (non-negotiable baseline). TypeScript and React experience Full-stack capable at senior level, comfortable across both front end and back end. Experience with ...

cloud platforms and data tools including languages such as Python, SQL, PySpark, Java Knowledge and experience with programming languages such as React, Typescript, Javascript is desirable Skills and Experience Essential Delivers tasks with guidance Writes maintainable, tested code with support Troubleshoots issues with assistance Demonstrates learning agility. Values Essential Consistently ...

that's where you create value - Feed customer signal back into product, closing the loop on the roadmap Qualifications - You're proficient in JavaScript/TypeScript and can write clean code and prototype customer-facing applications quickly. - You've got hands-on React and Node.js experience across frontend and backend. ...

fast across mobile and backend. This role will be hands-on, building and owning features end to end. Essential Skills & Experience Strong TypeScript/JavaScript Experience in fast-paced, iterative teams 4+ years in your core area Confident delivering end-to-end features Comfortable jumping across frontend + backend React ...

role in shaping the architecture of a complex, high-impact product. Take the next step in your career today! Responsibilities Building with JavaScript/TypeScript and Node.js Owning meaningful technical problems end-to-end Improving large-scale, data-heavy systems Working closely with users and seeing your impact quickly Refactoring ...

bank. This role is perfect for someone who enjoys combining modern software engineering with emerging AI technologies. Tech & Projects Include: Python (FastAPI/Flask) JavaScript, REST APIs & SQL Server AI & LLM applications RAG pipelines & agentic AI workflows Locally hosted open-source LLMs Microsoft Power Platform LangChain, LangGraph, Semantic Kernel & Copilot ...

Services and the broader Azure ecosystem Strong grasp of API authentication — OAuth 2.0, SAML, and related standards Coding proficiency in Python or equivalent (Groovy, JavaScript) Proficiency in SQL and experience working with relational databases Ability to work independently, manage your own priorities, and communicate clearly with non-technical stakeholders Nice ...

back-end systems using modern web technologies such as React, Node.js, and TypeScript. What You Will Bring: - Strong proficiency in HTML, CSS, and JavaScript, with a solid grasp of best practices. - Proven experience with Node.js and modern frameworks like React and TypeScript. - Familiarity with WebGL and libraries such as three.js ...

Strong understanding of Microsoft Power Platform tools and their capabilities. Proficiency in Power Apps, Power Automate, Power BI, and Dataverse. Proven M365, C# and JavaScript experience Excellent problem-solving skills and attention to detail. Ability to work independently and collaboratively in a fast-paced environment. Strong communication skills to effectively ...

enterprise contexts Align solutions with established enterprise standards and architectural principles Essential Skills for the AI Solutions Architect: Strong expertise in Python and JavaScript Hands-on experience with backend frameworks and modern frontend frameworks Deep knowledge of Generative AI and agent-based AI frameworks including RAG and orchestration patterns Strong ...

Product Owners and Product Managers including participating in customer research and product discovery processes. The skills you'll need: In-depth knowledge of React, JavaScript/TypeScript and the DOM. Demonstrated delivery of web applications. Comfortable working with REST APIs using asynchronous patterns. Experience with Git, including understanding of branching ...

Automate, Power BI, and Power Virtual Agents. Experience with Microsoft Dataverse, SharePoint, Dynamics 365, and Azure. Knowledge of scripting and programming languages such as JavaScript, Power FX, C#, and SQL is a plus. Experience integrating external data sources (e.g., SQL databases, Excel, APIs). Understanding of security and governance ...

Professional, or equivalent certification. Experience with ServiceNow CSDM 3.0 or later. Experience with: Service Mapping Automated Test Framework (ATF) Vulnerability Management Scripting experience including JavaScript, Jelly, SQL, or similar technologies. Behavioural Competencies Analytical Thinking Attention to Detail Accountability and Ownership Effective Communication Critical Thinking Customer Focus Collaboration and Teamwork Adaptability ...

business. They will communicate technical concepts effectively to a non‐technical audience and have experience delivering technical solutions to tight deadlines. Required skills include JavaScript (ECMAScript 6), Semantic HTML, CSS/SCSS, and frameworks such as Vue.js. Additionally, they should have experience in REST API integration, AzureAD authentication, automated testing ...