76 to 100 of 890 JavaScript Jobs in London

Engineer Strong commercial experience as a Software Engineer or Developer, ideally within a SaaS or cloud-based environment Solid programming skills in at least one modern language (e.g. Python, JavaScript, TypeScript, Java, Go, etc.) Experience designing and building API-driven integrations and working with third-party platforms This company values an excellent academic history so is looking for a More ❯

Engineer Strong commercial experience as a Software Engineer or Developer, ideally within a SaaS or cloud-based environment Solid programming skills in at least one modern language (e.g. Python, JavaScript, TypeScript, Java, Go, etc.) Experience designing and building API-driven integrations and working with third-party platforms This company values an excellent academic history so is looking for a More ❯

of engineers (has managed at least 3 mid-level engineers), including performance management, career development, and capacity planning.. Strong knowledge of modern programming languages and frameworks (e.g., Java, Python, JavaScript, .NET). Experience with agile methodologies and DevOps practices. Ability to lead technical discussions and architectural decisions. Excellent interpersonal, communication, and organisational skills. Bachelors or Masters degree in Computer Science More ❯

related field, Microsoft Developer Certification (desirable). Minimum 7+ years' experience with C#, plus strong skills in .NET/.NET Core, Power Apps, Microsoft 365, REST APIs, SQL Server, JavaScript/TypeScript/Angular, and Azure (including PaaS components). Experience with TDD, automation (e.g. Playwright), Azure DevOps, Git, CI/CD pipelines, and Agile methodologies. Strong understanding of software More ❯

of financial/trading platforms and knowledge of financial markets Knowledge of FIX protocol and ability to handle FIX interactions In-depth knowledge of AWS services Experience with Java, JavaScript or React Experience with serverless architecture and microservices Experience with TDD, BDD or similar approaches Band & level : Manager, 7 Not The Perfect Fit? Concerned that you may not meet the More ❯

robust scalable APIs using modern frameworks and technologies. Azure Logic Apps: Configure and integrate Azure Logic Apps to enable seamless workflows and business process automation. Proficiency Coding Languages JSON JavaScript PowerShell & C# Azure Security: Implement and adhere to best practices in Azure security including identity management access control and threat protection. Front-End Development: Build responsive and user-friendly front More ❯

modern frontend techniques and share insights with the team Explain technical decisions and systems clearly to both technical and non-technical audiences Key requirements: Essential Skills: Proficiency in modern JavaScript , particularly React and/or React Native Good working knowledge of TypeScript Experience with Node.js Understanding of REST and GraphQL APIs Ability to create responsive, accessible UIs using the latest More ❯

backend systems in a production environment. 3+ years of hands-on experience with modern software architecture and scalable frameworks. Proficiency in Java (Spring Boot), Python, or similar. Proficiency in JavaScript/TypeScript with frameworks like React (preferred), Angular, Vue, or similar. Solid understanding of scalable, service-oriented architectures in a cloud or hybrid setting. Experience with PostgreSQL and/or More ❯

or more Python frameworks (e.g., Flask, FastAPI, Django, etc). Excellent communication and interpersonal skills, with the ability to collaborate effectively with internal and external teams. Commercial experience with JavaScript or TypeScript (ideally React). Experience with RESTful APIs. Experience in code management tools as Git and package managers (e.g., pip, poetry, uv, npm, or yarn). Ability to write More ❯

including development and production support Experience using configuration management tools such as Chef, Ansible or Puppet Proficient writing code in at least one programming language such as Python, Java, JavaScript, C/C++, Ruby, Perl or similar Proficient writing and maintaining bash scripts Experience writing concise and illustrative documentation Experience Microsoft Azure and Google Cloud Experience with Data Engineering and More ❯

expect candidates at this level to have around 5+ years of software engineering experience. You should be prepared to undertake our pair-programming stage of the interview process in Javascript or Typescript and be assessed on that basis as if it has been your main language. We're hiring for full-stack engineers so if you're only really a More ❯

expect candidates at this level to have around 5+ years of software engineering experience. You should be prepared to undertake our pair-programming stage of the interview process in Javascript or Typescript and be assessed on that basis as if it has been your main language. We're hiring for full-stack engineers so if you're only really a More ❯

At Atominvest, we build tools and software for the world's best investors. Are you looking for an opportunity to be part of a high growth software business within the private equity & venture capital industry? Do you love to build More ❯

C# candidate should have knowledge of: .NET 9 ASP.NET React Angular 19 Microservices Azure WPF MVVM Prism Agile Azure SQL and more Additionally, there are opportunities for training in: JavaScript TypeScript MongoDB Vue.js AWS and other related technologies The training also covers areas like continuous integration, dependency injection, RESTful, Web API 2, Entity Framework, Node.js, Elasticsearch, Agile methodologies (TDD, BDD More ❯

AWS Experience with .BDD, TDD and DDD, should be able to apply them in your everyday dev tasks Extensive with REST and SOA Proven experience with HTML/CSS, JavaScript and related technologies Experience in Angular/React or similar FW development Experience with frontend development patterns: Smart/Dumb Components, Redux, etc Experience in reactive development: RxJS etc Experience More ❯

use. Ensure the technical feasibility of UI/UX designs. Implement security and data protection measures. Stay updated with emerging technologies and industry trends. Requirements : Proficient experience with TypeScript, JavaScript, HTML, and CSS. Solid experience with front-end frameworks/libraries (e.g., React, Angular, Vue.js, Next.js, etc). Strong understanding of server-side technologies (Node.js, Express, etc.). Experience with More ❯

strategic advantage. You'll work alongside a talented team contributing ideas, collaborating with designers and prototyping new features. There's a modern tech stack, you'll be mainly using JavaScript/TypeScript, React and React Native but will be able to pick new technologies and skills up on the job. Location/WFH: You'll be joining a friendly and More ❯

for Work & Pensions, supported by the NHS and widely used across health/social care, HE and in the workplace. The skills we're looking for C# .Net, .NetCore. Javascript or Typescript, SCSS/CSS, HTML. Experiencewith either React.js. or Vue.js (but you'll be using Vue.js here!). SQL Server and an awareness of other data structures. RESTful web More ❯

role provides the chance to work closely with experienced developers and architects. Building and maintaining responsive and interactive mobile and web applications using modern front-end technologies (HTML5, CSS3, JavaScript/TypeScript) and frameworks (e.g., React). Developing server-side applications with back-end technologies like Node.js. Creating and integrating APIs for communication between front-end and back-end systems. More ❯

hear from you! Essential Skills & Experience: Eligibility for SC clearance . Experience in Agile environments (e.g., SCRUM, Kanban) A technical development background with coding skills in Java, C#, TypeScript, JavaScript , or similar. Expertise in automation testing, with hands-on experience using tools like Playwright, Selenium, Cypress, or RestAssured. Knowledge of integration testing and automation frameworks. Hands-on experience with CI More ❯

career development opportunities and performance bonuses. For a comprehensive list of benefits, speak to our recruitment team. We are looking for: Hands on experience of developing software in Java, JavaScript or Python Understanding of Cloud-based architectures in AWS or Azure Use of DevOps Automated Deployment tools such as Jenkins, Gitlab, Docker, OpenShift or Kubernetes Understanding of database technologies such More ❯

career development opportunities and performance bonuses. For a comprehensive list of benefits, speak to our recruitment team. We are looking for: Hands on experience of developing software in Java, JavaScript or Python Understanding of Cloud-based architectures in AWS or Azure Use of DevOps Automated Deployment tools such as Jenkins, Gitlab, Docker, OpenShift or Kubernetes Understanding of database technologies such More ❯

at unit, integration, and system levels, across both back and front-end technologies. Technical versatility and proficiency in a range of relevant programming languages (e.g. Java, PL/SQL, JavaScript) and tools (e.g. Git, CI/CD pipelines). Expertise in designing and implementing scalable applications on cloud infrastructure, with a focus on performance and security. Tech Stack M&S More ❯

organisation who makes a huge impact to the security of the UK. About you You will have experience in many of the following: Programming in one or more of JavaScript, Java, .Net, Python Collaboratively designing and building Proof of Concepts or Production systems Source controlling your code with Version Control Systems, e.g. Git Utilising CI/CD tools, such as More ❯

to do their best work, whilst building a sense of community and collaboration. Read more about what it's like to work at VivaCity . Requirements for the role: JavaScript, Node.js and a statically-typed language (eg Go, Typescript): commercial or significant project experience required, able to progress technical independently at pace Version control (Git) and command line: working ability More ❯