201 to 225 of 779 JavaScript Jobs in London

strategic development of UI architecture and infrastructure. Required skills and experience Strong experience utilising Frontend Technologies is essential, with React being the preferred language Experience with HTML/CSS, JavaScript, and Typescript is essential Familiarity with Agile methodologies and working within a DevOps culture is beneficial, but not preferred Experience driving the UI of a platform, being part of key More ❯

A 1st or 2.1 postgraduate degree in computer science from a world-leading university and A and A grades at A-level (or equivalent) Excellent coding skills in Java, JavaScript and/or TypeScript (above and beyond the university module/practical level) Some experience of working with large existing codebases Practical experience of working in commercial software development environments More ❯

would like to see at least 3-4 years of experience as a web developer, with specific experience creating, implementing, and sustaining responsive websites. You should be proficient in JavaScript, jQuery, HTML, CSS/SCSS, Shopify (working with liquid files), and related technologies. Experience in AWS (Lambda, S3, API Gateway), Node/NPM, and with SQL and/or NoSQL More ❯

on everything from web platform architecture to high-volume APIs and machine learning integration. What you'll be doing: Building and maintaining scalable services using Node.js, React, and modern JavaScript frameworks. Contributing to both front-end and back-end architecture - from UI design systems to content APIs. Working with cross-functional teams to prototype, test, and deliver features across large More ❯

SKILLS AND EXPERIENCE: The ideal Principal Software Engineer will have: Strong mathematical and statistical expertise, ideally from a quantitative background. Proficiency in C# and the .NET platform. Experience with JavaScript front-end frameworks, such as React. Solid understanding of Network Programming (TCP/UDP). Experience with Distributed Version Control systems (e.g., PlasticSCM, Git, Hg). A history of good More ❯

skills; fluency in English* Passion or interest in sports (sports trading background not required)* Strong tenure and track record of mastery in a domain Nice to Have Experience with JavaScript frameworks (e.g., React)* Network programming (TCP/UDP)* Multi-threaded application development* Familiarity with version control tools (PlasticSCM, Git, etc.)* Exposure to Windows-based technologies Tech Stack/Tools C# More ❯

and implementing new scalable technology within AWS, particularly leveraging services such as ECS, DynamoDB, ALB, CloudFront, CloudWatch, and Lambda to build robust and efficient backend systems. Strong proficiency in JavaScript and TypeScript (both frontend and backend). Proven experience with React and React Native in production environments. Solid understanding of cloud-native backend development, with a focus on serverless architecture More ❯

knowledge of its ecosystems * Familiarity with the .NET including .NET 6 onwards. * Solid experience with relational databases. * Familiarity with MVC and WebAPI * Front end development skills including HTML, CSS, JavaScript, jQuery. * Proficient understanding of code versioning tools including GIT * Strong understanding of object-oriented programming * Skill for writing reusable C# libraries. * Familiar with various design and software architectural patterns. * Understanding More ❯

You have strong AWS, EKS, Terraform and ArgoCD skills and experience You have a good knowledge of other technology in the stack: Linux, Kubernetes, Pulumi, CloudFormation, CDK, Golang, Python, JavaScript, GitOps, GitHub Actions You are comfortable and confident with running projects, providing technical leadership and mentoring others You're collaborative and pragmatic with great communication skills What's in it More ❯

streaming technologies (Spark Streaming) Data manipulation and wrangling techniques Development and deployment technologies (virtualisation, CI tools like Jenkins, configuration management with Ansible, containerisation with Docker, Kubernetes) Data visualization skills (JavaScript preferred) Experience deploying solutions on Cloud platforms (AWS, Azure, Google Cloud) including provisioning tools (Terraform) Strong interpersonal skills for client engagement and requirement gathering Ability to translate business needs into More ❯

You have strong AWS, EKS, Terraform and ArgoCD skills and experience You have a good knowledge of other technology in the stack: Linux, Kubernetes, Pulumi, CloudFormation, CDK, Golang, Python, JavaScript, GitOps, GitHub Actions You are comfortable and confident with running projects, providing technical leadership and mentoring others You're collaborative and pragmatic with great communication skills What's in it More ❯

at a native or business level. Willingness to participate in a minimal after-hours support rotation. Nice to have : Knowledge of programming languages such as C, C++, C#, Java, JavaScript, HTML, XML. Experience in fintech or financial services industry. Knowledge of SWIFT or other payment processing systems. Proficiency in additional languages like Arabic, French, Spanish, or Portuguese. Additional information : We More ❯

multiple priorities remotely. Experience defining, tracking, and reporting product KPIs; familiarity with A/B testing is a plus. Experience with AI and P2P projects is advantageous. Hands-on JavaScript development experience (Node.js, React, Angular) is a plus. More ❯

experience in software development, system integration, and creating customer-facing developer resources such APIs, SDKs and documentation. Experience of Full Stack Web development and Cloud Architecture Demonstrable Experience with JavaScript, NodeJS, Python or equivalent frameworks/languages Excellent interpersonal and communication skills, both verbal and written. Articulate, charismatic, and confident in a customer-facing role, with the ability to present More ❯

Qualifications: 10+ years of experience with C/C++ on embedded systems or portable multi-platform development on resource-constrained platforms. Expertise with web standards and technologies such as JavaScript, CSS, HTML5. Deep understanding of browser internals like WebKit, Chromium, Cobalt. Proficiency with React and React Native frameworks. Experience porting web browsers on embedded systems with resource constraints (memory, CPU More ❯

WalkMe and digital adoption technologies. What you'll need to succeed Strong understanding of user behaviour and how to improve user engagement through WalkMe. Familiarity with HTML, CSS, and JavaScript to customise and integrate WalkMe elements into web applications. Analytical mindset, capable of interpreting data to make data-driven decisions and optimise WalkMe implementations. Excellent communication and collaboration skills, with More ❯

stakeholders and analyze the current landscape for opportunities to operate and code creative solutions. Required technical and professional expertise Experience of: Proved expertise in Backend or full stack dev: Javascript AWS (lambda S3 DynamoDB etc) Cloudformation As an equal opportunities' employer, we welcome applications from individuals of all backgrounds. However, for you to be eligible for this role, you must More ❯

Good to have skills knowledge/expertise in FX/Fixed Income/Equity/Equity Derivatives products KDB Exposure and understanding in one or more of the modern JavaScript build tool chain using things like node, npm, rush, yarn, webpack, babel, cyprus Why this role is important to us Our technology function, Global Technology Services (GTS), is vital to 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 ❯

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 Signicant hands-on experience with React Experience at developing services (RESTful API) including strong authentication (using JWT, 3rd party More ❯

and best practices that scale across teams. What You Bring 7+ years of experience in test automation , software engineering , or SDET roles . Advanced proficiency in Python , Java , C# , JavaScript , or Go . Strong experience building and scaling test automation frameworks and developer-focused tools. Deep understanding of distributed systems , API testing , and CI/CD pipelines . Hands-on More ❯

a typo at a distance!) The ability to commute to our London office twice a week Bonus points for: Basic understanding of html, css/scss and/or javascript Ability to use no code tools like Webflow Personal Attributes: Has a deep sense of compassion, for not only the members of the team, but also the clinicians and patients More ❯

influence stakeholders. Experience managing large-scale SEO efforts across complex digital ecosystems (e-commerce, SaaS, or similar industries is a plus). Familiarity with web development languages (HTML, CSS, JavaScript) is a plus. Demonstrated success in driving SEO growth for large-scale websites or platforms. Familiarity with Agile methodologies and working in fast-paced, iterative development environments. Experience working in More ❯

concepts to non-technical audiences Desired requirements for the role are: Previous experience working in a technical support, development, or automation role Some basic knowledge of programming languages (e.g., JavaScript, Python, etc.) Familiarity with REST APIs and their integration with other tools and platforms An understanding of web application testing methodologies and frameworks An awareness of emerging AI-driven platforms More ❯

test coordination skills Debugging and analysis of issues (we use NewRelic and AWS Cloudwatch) Visual difference testing (we use Percy) API testing (we use Postman) Front end testing using Javascript (we use Cypress) Cross browser/Device testing (we use BrowserStack and real devices) Continuous Integration job setup and configuration (we use Jenkins) Basic Linux skills (find a file, view More ❯