251 to 275 of 854 JavaScript Jobs in London

OpenAPI specs, data dictionaries, usage guides). Work with a collaborative approach to architecture reviews and cross-functional teamwork. 🛫 What makes a successful candidate? Proficient in TypeScript and modern JavaScript (ES6+). Strong experience with AWS serverless (Lambda, API Gateway, Aurora PostgreSQL/RDS). Skilled in relational database design, SQL, and performance tuning. Experienced in RESTful API design (GraphQL More ❯

OpenAPI specs, data dictionaries, usage guides). Work with a collaborative approach to architecture reviews and cross-functional teamwork. 🛫 What makes a successful candidate? Proficient in TypeScript and modern JavaScript (ES6+). Strong experience with AWS serverless (Lambda, API Gateway, Aurora PostgreSQL/RDS). Skilled in relational database design, SQL, and performance tuning. Experienced in RESTful API design (GraphQL More ❯

OpenAPI specs, data dictionaries, usage guides). Work with a collaborative approach to architecture reviews and cross-functional teamwork. 🛫 What makes a successful candidate? Proficient in TypeScript and modern JavaScript (ES6+). Strong experience with AWS serverless (Lambda, API Gateway, Aurora PostgreSQL/RDS). Skilled in relational database design, SQL, and performance tuning. Experienced in RESTful API design (GraphQL More ❯

OpenAPI specs, data dictionaries, usage guides). Work with a collaborative approach to architecture reviews and cross-functional teamwork. 🛫 What makes a successful candidate? Proficient in TypeScript and modern JavaScript (ES6+). Strong experience with AWS serverless (Lambda, API Gateway, Aurora PostgreSQL/RDS). Skilled in relational database design, SQL, and performance tuning. Experienced in RESTful API design (GraphQL More ❯

backend expertise in Go including API design, microservices architecture, gRPC/REST services, and database design (PostgreSQL, Redis). Frontend proficiency with React/Next.js, responsive design, and modern JavaScript/TypeScript Cloud infrastructure knowledge including AWS services, CI/CD pipelines, and DevOps practices. System architecture experience designing scalable, maintainable applications from ground up. Experience in building scalable maintainable More ❯

backend expertise in Go including API design, microservices architecture, gRPC/REST services, and database design (PostgreSQL, Redis). Frontend proficiency with React/Next.js, responsive design, and modern JavaScript/TypeScript Cloud infrastructure knowledge including AWS services, CI/CD pipelines, and DevOps practices. System architecture experience designing scalable, maintainable applications from ground up. Experience in building scalable maintainable More ❯

backend expertise in Go including API design, microservices architecture, gRPC/REST services, and database design (PostgreSQL, Redis). Frontend proficiency with React/Next.js, responsive design, and modern JavaScript/TypeScript Cloud infrastructure knowledge including AWS services, CI/CD pipelines, and DevOps practices. System architecture experience designing scalable, maintainable applications from ground up. Experience in building scalable maintainable More ❯

backend expertise in Go including API design, microservices architecture, gRPC/REST services, and database design (PostgreSQL, Redis). Frontend proficiency with React/Next.js, responsive design, and modern JavaScript/TypeScript Cloud infrastructure knowledge including AWS services, CI/CD pipelines, and DevOps practices. System architecture experience designing scalable, maintainable applications from ground up. Experience in building scalable maintainable More ❯

Power Platform with external systems Proficiency in DAX, Power Query, and delivering advanced business intelligence dashboards in Power BI Experience of or ability to write and debug Power Fx, JavaScript, and C# for custom components and plug-ins Skilled in requirements gathering, solution architecture, and technical documentation Understanding of Agile delivery methodologies and DevOps practices for Power Platform solutions Relevant More ❯

interest in working with and using large scale data to solve valuable business problems. Strong coder with demonstrated proficiency in programming languages such as Python, Java, C++, TypeScript/JavaScript, or similar. Demonstrated ability to collaborate effectively in teams of technical and non-technical individuals, and comfortable working in a rapidly changing environment with dynamic objectives and iteration with users. More ❯

setup, configuration, and troubleshooting across domains. Owning the technical solution design for experiments, considering client requirements, testing platform capabilities, and long-term maintainability. Building high-quality HTML, CSS, and JavaScript code to transform designs into polished, interactive variation experiences. Managing the end-to-end configuration of tests within client-selected A/B testing platforms, including targeting, audience segmentation, goals More ❯

setup, configuration, and troubleshooting across domains. Owning the technical solution design for experiments, considering client requirements, testing platform capabilities, and long-term maintainability. Building high-quality HTML, CSS, and JavaScript code to transform designs into polished, interactive variation experiences. Managing the end-to-end configuration of tests within client-selected A/B testing platforms, including targeting, audience segmentation, goals More ❯

wider forums, ensuring engineering insights and feedback are heard and actioned. Key requirements: 5+ years of engineering leadership experience, managing teams of 8+ engineers. A strong development background in JavaScript, Java or Kotlin (React or React Native experience is a bonus!). Proven success building and scaling distributed systems using modern cloud-native technologies (e.g. Docker, Kubernetes, microservices). A More ❯

Embedding a culture of collaboration, learning and empowerment Shaping the engineering culture by implementing best development practices What we would like to see from you Expert knowledge of vanilla JavaScript/TypeScript Understanding of WebAssembly Deep understanding of web security issues Significant hands-on experience with React Experience at developing services (RESTful API) including strong authentication (using JWT, 3rd party More ❯

testing methodologies, including regression, performance, and security testing. Hands-on experience with CI/CD pipelines and integrating testing processes. Working knowledge of programming languages like Python, Java, or JavaScript is a plus. 3. Tools and Frameworks: Experience with test management tools such as MS Azure DevOps. Familiarity with performance testing tools and practices is advantageous. 4. Soft Skills: Exceptional More ❯

with extensive front end web development and architecture experience, self-organizing, comfortable working in multi-disciplinary teams and demonstrating great interpersonal skills. Skills and Experience required: React HTML5 CSS JavaScript Agile Finance experience is a must Front Office experience is a plus! If you have the necessary skills and experience please apply now! McGregor Boyall is an equal opportunity employer More ❯

with extensive front end web development and architecture experience, self-organizing, comfortable working in multi-disciplinary teams and demonstrating great interpersonal skills. Skills and Experience required: React HTML5 CSS JavaScript Agile Finance experience is a must Front Office experience is a plus! If you have the necessary skills and experience please apply now! McGregor Boyall is an equal opportunity employer More ❯

Build and maintain Python-based automation (including Selenium & iOS functional automation). Develop test strategies, plans, and scripts across the full project lifecycle. Contribute to front-end (React/JavaScript) and back-end (Python/Postgres, APIs) development. Deliver features on time while documenting, reporting progress, and collaborating in Agile teams. What We're Looking For 7+ years Python automation More ❯

Build and maintain Python-based automation (including Selenium & iOS functional automation). Develop test strategies, plans, and scripts across the full project lifecycle. Contribute to front-end (React/JavaScript) and back-end (Python/Postgres, APIs) development. Deliver features on time while documenting, reporting progress, and collaborating in Agile teams. What We're Looking For 7+ years Python automation More ❯

testing for our web-based applications and trading platforms. What We're Looking For: Playwright Experience: Strong experience with Playwright for test automation, and familiarity with modern web technologies (JavaScript/TypeScript, HTML, CSS). SDET Expertise: Proficiency in writing automated tests for web and mobile applications, with a solid understanding of testing methodologies. Commodity Trading Knowledge: An understanding of More ❯

React.js. Work in a modern cloud environment (AWS). Promote best practices in coding, testing, and agile collaboration. About You You’ll bring: Strong commercial experience in TypeScript/JavaScript across the stack. Deep expertise with Node.js and React.js. Experience working in cloud environments (AWS). A collaborative, problem-solving mindset with a passion for clean, scalable solutions. What’s More ❯

TypeScript JavaScript Angular RxJS CSS HTML NX/CLI Functional programming practices Technical Troubleshooting Knowledge of approaches, tools and techniques for anticipating, recognizing, and resolving technical problems. Oral Communications Ability to express oneself and communicate with others verbally; recognizing that verbal communication is more than just language - it includes tone, style and structure. Managing Multiple Priorities Ability to manage multiple More ❯

office in central London and the team meet up once per quarter. To be a successful, the ideal Full Stack Software Engineer candidate will have: A deep knowledge backend JavaScript - Node and Typescript. Excellent knowledge of React for front end Experience of some AWS or AI or LLM Experience of working in a small team and getting things done What More ❯

an office in central London and the team meet up once per quarter. To be a successful, the ideal Lead Software Engineer candidate will have: · A deep knowledge backend JavaScript - Node and Typescript. · Excellent knowledge of AWS devops and infrastructure. · Experience of some front end React would be nice to have · Experience of working in a small team and getting More ❯

office in central London and the team meet up once per quarter. To be a successful, the ideal Full Stack Software Engineer candidate will have: · A deep knowledge backend JavaScript - Node and Typescript. · Excellent knowledge of React for front end · Experience of some AWS or AI or LLM · Experience of working in a small team and getting things done What More ❯