101 to 125 of 613 JavaScript Jobs in London

experienced in: .NET, .NET Core/ASP.NET MVC, C# and Azure SQL. You will be trained in all aspects of: .NET 9, Web API 2, Entity Framework, Microservices, Azure, JavaScript, Angular 19, Bootstrap, Agile and MongoDB. Top performers can expect to receive their first promotion (and pay rise) within 6 months. Our client offers a unique working environment including a More ❯

experienced in: .NET, .NET Core/ASP.NET MVC, C# and Azure SQL. You will be trained in all aspects of: .NET 9, Web API 2, Entity Framework, Microservices, Azure, JavaScript, Angular 19, Bootstrap, Agile and MongoDB. Top performers can expect to receive their first promotion (and pay rise) within 6 months. Our client offers a unique working environment including a More ❯

documentation, and training for engineering teams adopting Backstage. Contribute to Backstage open-source ecosystem (where applicable). Profile The Spotify Backstage Developer will have strong experience in TypeScript/JavaScript (React knowledge highly desirable). Experience working with Spotify Backstage (building plugins, extending the framework). Familiarity with cloud environments (AWS, GCP, or Azure). Understanding of CI/CD More ❯

emerging technologies. We are looking for candidates who have: Deep experience with PHP and MySQL in high-availability, scalable environments. Strong skills in complementary technologies such as TypeScript, React, JavaScript, or Python. An interest in learning other languages - especially Golang. Proven leadership skills, capable of guiding teams and sharing knowledge effectively. In-depth understanding of relational database tuning and performance More ❯

production (tools include DataDog). To be successful in this role, you will have: Significant experience as a Senior Software Engineer (or equivalent). Strong full-stack expertise across JavaScript/TypeScript, Node.js, React, GraphQL, and AWS (EKS, Lambda, RDS). A proven track record in building resilient APIs and managing backend services/databases. Experience with TDD and testing More ❯

inc. defining invocable Flow actions and batch Apex) Salesforce Experience Cloud site-building experience Able to develop robust and advanced Salesforce Lightning Web Components (inc. familiarity with HTML, CSS, JavaScript) DevOps pipeline implementation and troubleshooting (inc. Python, Node.JS, Bash) AWS Services - including Lambda (Java), Secrets Manager, API Gateways Salesforce email configuration, including DNS/DKIM/SPF AI prompt building More ❯

Strong problem-solving skills and attention to detail. Excellent communication skills with the ability to work across technical and business teams. Competence in Microsoft tools (Excel, SharePoint); experience with JavaScript, C#, HTML, or SQL beneficial. Familiarity with agile methodologies and structured delivery. For senior roles: proven track record in leading projects, mentoring, and delivering scalable enterprise solutions. What We're More ❯

Strong problem-solving skills and attention to detail. Excellent communication skills with the ability to work across technical and business teams. Competence in Microsoft tools (Excel, SharePoint); experience with JavaScript, C#, HTML, or SQL beneficial. Familiarity with agile methodologies and structured delivery. For senior roles: proven track record in leading projects, mentoring, and delivering scalable enterprise solutions. What We're More ❯

product roadmap and future feature development. The skills you'll need Strong technical knowledge in .NET Framework, .NET Core, ASP.NET MVC/Web Forms, HTML/CSS/SASS, JavaScript/TypeScript, RESTful APIs, SQL Server, and Entity Framework. Experience with scalable applications, design patterns, and asynchronous programming (e.g. queuing, caching, logging). Familiarity with Windows services, DevOps, Azure, CI More ❯

product roadmap and future feature development. The skills you'll need Strong technical knowledge in .NET Framework, .NET Core, ASP.NET MVC/Web Forms, HTML/CSS/SASS, JavaScript/TypeScript, RESTful APIs, SQL Server, and Entity Framework. Experience with scalable applications, design patterns, and asynchronous programming (e.g. queuing, caching, logging). Familiarity with Windows services, DevOps, Azure, CI More ❯

communication skills Structured approach to quantitative challenges Comfort working in a dynamic startup environment Qualifications Microsoft Azure experience, particularly R integration Application containerization knowledge (Docker, etc.) Familiarity with Python, JavaScript, C++, bash, or other languages Web application development experience (React, .NET) Background in data security and IP protection workflows Knowledge of environmental sustainability concepts (carbon footprinting, lifecycle analysis, environmental modeling More ❯

technical audiences Ideal Candidate Profile Technical Experience 5–7 years of professional experience across software engineering, DevOps, or applied data science Strong programming skills in Python and familiarity with JavaScript/TypeScript Working knowledge of React (not a frontend role, but an understanding of the stack is important) Hands-on experience with containerisation (Docker) and cloud deployment (Terraform, microservices, Azure More ❯

technical audiences Ideal Candidate Profile Technical Experience 5–7 years of professional experience across software engineering, DevOps, or applied data science Strong programming skills in Python and familiarity with JavaScript/TypeScript Working knowledge of React (not a frontend role, but an understanding of the stack is important) Hands-on experience with containerisation (Docker) and cloud deployment (Terraform, microservices, Azure More ❯

communication skills Structured approach to quantitative challenges Comfort working in a dynamic startup environment Qualifications Microsoft Azure experience, particularly R integration Application containerization knowledge (Docker, etc.) Familiarity with Python, JavaScript, C++, bash, or other languages Web application development experience (React, .NET) Background in data security and IP protection workflows Knowledge of environmental sustainability concepts (carbon footprinting, lifecycle analysis, environmental modeling More ❯

degree in Computer Science, Engineering, or a related field (or equivalent experience) 7+ years in Software Development 5+ years in Frontend or Web Developmentwith a strong focus on modern JavaScript frameworks (React, Vue, or Angular) Required: React, Typescript, DeckGL, NodeJS, Postgres Desired: Google Cloud Platform What We Offer Competitive salary and comprehensive benefits package. A vibrant and supportive work environment. More ❯

communication skills Structured approach to quantitative challenges Comfort working in a dynamic startup environment Qualifications Microsoft Azure experience, particularly R integration Application containerization knowledge (Docker, etc.) Familiarity with Python, JavaScript, C++, bash, or other languages Web application development experience (React, .NET) Background in data security and IP protection workflows Knowledge of environmental sustainability concepts (carbon footprinting, lifecycle analysis, environmental modeling More ❯

that's critical to global trading operations. What we're looking for: Strong programming skills in an OOP language (Java, Python, etc.). Solid hands-on experience with React, JavaScript, HTML, and CSS. Good understanding of algorithms, data structures, and design patterns. Experience with agile methodologies (Scrum, Kanban, XP) and CI/CD practices. Background in UI design, optimisation, scalability More ❯

communication skills Structured approach to quantitative challenges Comfort working in a dynamic startup environment Qualifications Microsoft Azure experience, particularly R integration Application containerization knowledge (Docker, etc.) Familiarity with Python, JavaScript, C++, bash, or other languages Web application development experience (React, .NET) Background in data security and IP protection workflows Knowledge of environmental sustainability concepts (carbon footprinting, lifecycle analysis, environmental modeling More ❯

professional services contexts. Skills, Knowledge & Expertise • Minimum 3 years’ professional experience as a full-stack developer delivering robust, production-ready solutions. • Proficiency in: o Backend: Python, Django o Frontend: JavaScript, React, Next.js o Version control: Git • Experience building data-intensive applications and managing complex backend logic, including integrations with external APIs. • Strong ability to create responsive and accessible user interfaces More ❯

and Risk frontend application suite. Essential Skills & Qualifications: Proficient in an OOP language such as Java or Python. Strong experience with web technologies, tools, and frameworks, including HTML, CSS, JavaScript, and React. Familiarity with Agile development methodologies (XP, SCRUM, Kanban) and continuous integration practises. Previous experience in UI design, optimisation, and development processes. A solid degree in Computer Science, Physics More ❯

and Risk frontend application suite. Essential Skills & Qualifications: Proficient in an OOP language such as Java or Python. Strong experience with web technologies, tools, and frameworks, including HTML, CSS, JavaScript, and React. Familiarity with Agile development methodologies (XP, SCRUM, Kanban) and continuous integration practises. Previous experience in UI design, optimisation, and development processes. A solid degree in Computer Science, Physics More ❯

developing Infrastructure templates with Infrastructure as Code using either: Terraform, Cloudformation, Deployment Manager or ARM • Linux and Windows administration • Software development experience – ideally in Java, Kotlin, Python, Apps Script, JavaScript or C#/C++ • Containerisation experience such as Docker, Kubernetes or OpenShift • Experience of security protocols such as PKI, TLS etc • Virtualisation experience, KVM/Vmware • Good understanding of networking More ❯

in a React-based context A strong attention to detail, and a passion for creating frictionless and aesthetically satisfying user interfaces Exceptional technical foundations in the following programming languages: JavaScript, HTML, CSS, TypeScript Deep understanding of real-time data processing and its integration into third party visualization libraries Deep understanding of the proper use of state management libraries such as More ❯

Lambda Proficient in Git, CI/CD pipelines, and DevOps tools (e.g., Azure DevOps) Hands-on experience with web scraping, REST API integrations, and streaming data pipelines Knowledge of JavaScript and front-end frameworks (e.g., React) Additional Information Publicis Groupe operates a hybrid working pattern with full time employees being office-based three days during the working week.We are supportive More ❯

sure your team's work reflects that Own and plan for security, compliance , and operational impact as part of every development cycle Key requirements: Essential Skills: Proficient in modern JavaScript , including React and/or React Native Strong knowledge of TypeScript Solid experience with Node.js Familiarity with REST and GraphQL APIs Strong understanding of responsive design and modern CSS techniques More ❯