626 to 650 of 856 JavaScript Jobs in London

Senior Mobile Software Developer Tech : React Native, JavaScript, Android, iOS Why? start-up financial services, revolutionising the industry Location : Hybrid - 1/2 days in the office (Central London) Salary : £80,000 - £100,000 + benefits Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and … core principles. Prior experience with iOS and Android platforms, having a deep understanding of the ecosystem differences. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud More ❯

Senior Mobile Software Engineer Tech : React Native, JavaScript, Android, iOS Why? start-up financial services, revolutionising the industry Location : Hybrid - 1/2 days in the office (Central London) Salary : £80,000 - £100,000 + benefits Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and … core principles. Prior experience with iOS and Android platforms, having a deep understanding of the ecosystem differences. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud More ❯

Senior Mobile Software Developer Tech : React Native, JavaScript, Android, iOS Why? start-up financial services, revolutionising the industry Location : Hybrid - 1/2 days in the office (Central London) Salary : £80,000 - £100,000 + benefits Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and … core principles. Prior experience with iOS and Android platforms, having a deep understanding of the ecosystem differences. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud More ❯

Senior Mobile Software Engineer Tech : React Native, JavaScript, Android, iOS Why? start-up financial services, revolutionising the industry Location : Hybrid - 1/2 days in the office (Central London) Salary : £80,000 - £100,000 + benefits Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and … core principles. Prior experience with iOS and Android platforms, having a deep understanding of the ecosystem differences. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud More ❯

Senior Mobile Software Developer Tech : React Native, JavaScript, Android, iOS Why? start-up financial services, revolutionising the industry Location : Hybrid - 1/2 days in the office (Central London) Salary : £80,000 - £100,000 + benefits Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and … core principles. Prior experience with iOS and Android platforms, having a deep understanding of the ecosystem differences. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud More ❯

weeks) The second step includes a selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. You can More ❯

weeks) The second step includes a selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. You can More ❯

weeks) The second step includes a selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. You can More ❯

weeks) The second step includes a selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. You can More ❯

weeks) The second step includes a selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. You can More ❯

weeks) The second step includes a selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. You can More ❯

weeks) The second step includes a selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. You can More ❯

weeks) The second step includes a selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. You can More ❯

weeks) The second step includes a selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. You can More ❯

weeks) The second step includes a selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. You can More ❯

weeks) The second step includes a selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. You can More ❯

weeks) The second step includes a selection of more advanced courses to get you up to speed. Learn the Command Line (1.5 weeks) Learn Git & GitHub (1.5 weeks) Learn JavaScript (1.5 weeks) Learn Python 3 (1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. You can More ❯

even if you don't meet every listed requirement. We believe in fostering growth and providing the support needed for you to excel in your role. Nice to have: Javascript - Understanding of JavaScript/Typescript and NodeJS Python - Scripting and creating simple tools CI/CD - Tools like GitHub Actions, Fastlane macOS - Deep understanding of macOS architecture Cross-Platform - Hands More ❯

partner with intimate knowledge of your industry and first-hand experience of defining its future.London# Senior Full Stack EngineerWe are seeking a highly skilled and experienced Senior Full Stack JavaScript Developer to join our Experience Engineering team. In this role, you will lead the development of innovative web and mobile applications, ensuring high performance, scalability, and maintainability. You will work … technical guidance, and deliver solutions that exceed expectations. Your skills and experience • Design, develop, and maintain both front-end and back-end components of web and mobile applications using JavaScript, Node.js, and modern frameworks and libraries such as React, Angular, or Vue.js. • Proven experience in full stack JavaScript development, with a strong focus on Node.js and server-side development. • Experience … front-end framework (Nest.js, Remix.js). • A track record in a lead or senior developer role, with experience of mentoring and guiding development teams. • Proficiency in HTML5, CSS3, and JavaScript (ES6+). Why you should consider Capgemini Growing clients' businesses while building a more sustainable, more inclusive future is a tough ask. When you join Capgemini, you'll join a More ❯

delivery of full functionality within moderately complex projects, architect high-quality web applications, and develop key tools and systems that support them. Key Responsibilities Write and review code in JavaScript/TypeScript, Java, Kotlin, Golang, and/or SQL. Test, debug, maintain, and enhance full-stack web applications. Create services using standard development tools. Write and review technical documentation, including … new features. Required Qualifications BS degree in Computer Science, Electrical Engineering, Mathematics, or a related quantitative field, OR 3+ years of equivalent software development experience. 3+ years’ experience with JavaScript/TypeScript, Java, Kotlin, Golang, and/or SQL. 3+ years’ experience developing resource-oriented APIs. 3+ years’ experience in database design and debugging. Proven expertise in multiple general-purpose More ❯

delivery of full functionality within moderately complex projects, architect high-quality web applications, and develop key tools and systems that support them. Key Responsibilities Write and review code in JavaScript/TypeScript, Java, Kotlin, Golang, and/or SQL. Test, debug, maintain, and enhance full-stack web applications. Create services using standard development tools. Write and review technical documentation, including … new features. Required Qualifications BS degree in Computer Science, Electrical Engineering, Mathematics, or a related quantitative field, OR 3+ years of equivalent software development experience. 3+ years’ experience with JavaScript/TypeScript, Java, Kotlin, Golang, and/or SQL. 3+ years’ experience developing resource-oriented APIs. 3+ years’ experience in database design and debugging. Proven expertise in multiple general-purpose More ❯

delivery of full functionality within moderately complex projects, architect high-quality web applications, and develop key tools and systems that support them. Key Responsibilities Write and review code in JavaScript/TypeScript, Java, Kotlin, Golang, and/or SQL. Test, debug, maintain, and enhance full-stack web applications. Create services using standard development tools. Write and review technical documentation, including … new features. Required Qualifications BS degree in Computer Science, Electrical Engineering, Mathematics, or a related quantitative field, OR 3+ years of equivalent software development experience. 3+ years’ experience with JavaScript/TypeScript, Java, Kotlin, Golang, and/or SQL. 3+ years’ experience developing resource-oriented APIs. 3+ years’ experience in database design and debugging. Proven expertise in multiple general-purpose More ❯

delivery of full functionality within moderately complex projects, architect high-quality web applications, and develop key tools and systems that support them. Key Responsibilities Write and review code in JavaScript/TypeScript, Java, Kotlin, Golang, and/or SQL. Test, debug, maintain, and enhance full-stack web applications. Create services using standard development tools. Write and review technical documentation, including … new features. Required Qualifications BS degree in Computer Science, Electrical Engineering, Mathematics, or a related quantitative field, OR 3+ years of equivalent software development experience. 3+ years’ experience with JavaScript/TypeScript, Java, Kotlin, Golang, and/or SQL. 3+ years’ experience developing resource-oriented APIs. 3+ years’ experience in database design and debugging. Proven expertise in multiple general-purpose More ❯

applications. Experience in performing web accessibility testing for applications to ensure compliance with WCAG AA standards. Proficiency in at least one programming or scripting language such as Python, JavaScript and TypeScript Hands-on development experience with test automation frameworks and tools. Knowledge of CI/CD pipelines and related tools. Strong understanding of API testing. Experience with test management and … defect tracking tools. Experience working with ServiceNow. Strong attention to detail. Able to produce and review quality deliverables. Tools Knowledge Cloud Platforms: Azure Scripting/Programming: Python, JavaScript/TypeScript Test Automation(UI & API): PlayWright, PyTest, Power Apps Test Studio CI/CD Tools: Azure Devops Version Control: GIT Issue Tracking & Collaboration: Jira, Zephyr, Confluence, SharePoint, Azure Devops Web Accessibility More ❯

logistics, education, hospitality, and more. The Role Take ownership of developing scalable backend services and APIs to support new product features. Build and refine user-friendly interfaces using modern JavaScript frameworks. Optimise application performance and ensure high levels of reliability across distributed systems. Contribute to technical strategy a nd help shape future architecture decisions. Collaborate with product, design, and engineering … on large-scale applications. Solid knowledge of development ideally with Python or Go. Experience designing, maintaining, and optimising Database-Driven applications (PostgreSQL, Redi s , or equivalent) Strong background in JavaScript/TypeScript and frameworks such as React . Comfortable working with modern development tools, CI/CD pipelines, and version control. Exposure to at least one of the following would More ❯