26 to 50 of 311 React Jobs in London

Desirable Experience: Payments, FX, fintech, banking, or regulated financial services. Legacy modernization involving VB.NET, VB6, or older .NET Framework systems. Front-end development using React, Blazor, or similar frameworks. Third-party integrations and vendor platforms. Performance tuning, observability, monitoring, and production support. Benefits & Perks 4 X Life insurance Pension scheme ...

following; Substantial experience as a hands- on Full Stack Engineer Java 7/8 to current Applied knowledge of front end frameworks (Angular, React, other similar) Spring framework or Jax-RS, Jax-WS, JPA Knowledge of selected front end technologies (HTML, JavaScript, CSS) Rest, Hibernate, Docker, Terraform, GitHub, Jenkins, development ...

with emerging technologies and incorporate best practices into development.Experience/CompetencesEssentialStrong experience in full-stack development within enterprise environments.Proficiency in front-end technologies: TypeScript, React (or similar frameworks).Strong back-end experience with C# language.SOLID principle.Good understanding of RESTful APIs.Experience with cloud platforms (AWS preferred) and containerization (Docker/Kubernetes ...

incorporate best practices into development.**Experience/Competences**Essential* Strong experience in full-stack development within enterprise environments.* Proficiency in front-end technologies: TypeScript, React (or similar frameworks).* Strong back-end experience with C# language.* SOLID principle.* Good understanding of RESTful APIs.* Experience with cloud platforms (AWS preferred ...

Hands-on experience in system design, application development, testing, and operational stability Proficiency coding with JavaScript and using front-end UI frameworks such as React or Angular Experience building ASP.NET MVC, Web API, or REST style applications Proficiency coding in C# with .NET Core or .NET frameworks Ability to develop ...

ASP.NET, Web APIs, and modern engineering practices. Experience with Sitecore JSS and/or headless architectures (e.g., Sitecore Headless Services) and modern JavaScript frameworks (React/Next.js desirable). Solid knowledge of Azure and cloud‐native patterns (App Service, Functions, Storage, Key Vault, CDN); infrastructure as code experience is beneficial. ...

code. Experience 10+ years or equivalent experience in software development. Proven experience in either NodeJS (TypeScript) or Python At least 2+ years experience with React or a similar frontend framework. Hands-on experience shipping production code with AI coding agents or assistants (e.g. Claude Code, Cursor or equivalent). Experience ...

Nice to have: Experience working with LLMs, prompt engineering, model evaluation pipelines, and techniques for improving model quality and reliability. Tech Stack Frontend: JavaScript, React, TypeScript Backend: Go, Python Databases: DynamoDB, DocumentDB, and Postgres Deployment: GitHub Actions Observability: New Relic, Grafana Infrastructure: AWS services, GCP Benefits Personal development and growth ...

backend development using Javascript, Typescript, Node.JS and related backend technologies, frameworks. ⁃ Exposure to a variety of JavaScript frameworks and libraries such as: Next.JS, React.JS and testing using Jest, Mocha.JS, Cucumber etc. ⁃ Experience of using Node.js to create high traffic applications using Express.js, Sails, Koa or similar. ⁃ Knowledge of microservices development ...

Bachelor’s degree in Computer Science or a related quantitative field 5+ years of post‐graduation, full-stack engineering experience with demonstrated proficiency in React (required), TypeScript, Next.js, Python, Node.js, PostgreSQL or MongoDB plus hands‐on experience with Docker, Kubernetes, and Azure/AWS/GCP. Proven ability to architect ...

delivery of production‐grade software using a variety of languages and frameworks, including but not limited to: Java, C#/.NET, Python, TypeScript, JavaScript, React, Go, Ruby, Scala, R, and SQL Actively experimented with AI development tools and translated that experimentation into faster, higher‐quality delivery for your teams ...

both!): Server‐side languages such as C++, Java, Rust or Python Front‐end development in TypeScript or JavaScript, using frameworks such as Angular or React Several years of software engineering experience in industry Some history of managing other engineers A forward‐leaning and pragmatic approach to using AI coding tools ...

Skills: Experience in using tools such as GIT, JIRA, ServiceNow, and working in SCRUM/Agile framework Experience of working with SQL, JS, React, or Angular is desirable Experience of working in an Azure environment Experience with Microsoft Power Automate is desirable #J-18808-Ljbffr ...

synchronously with appropriate systems Develop and maintain high-quality user interfaces for web applications using JavaScript and modern JavaScript frameworks, with a preference for React/Angular. Write clean, maintainable, and efficient code while adhering to best practices and coding standards. Conduct code reviews and provide mentorship to junior developers ...

programming skills: Java for low‐latency services, concurrency, messaging Python for research, analytics, data processing FIX protocol experience Front‐end engineering: JavaScript/TypeScript React real‐time dashboards (REST/WebSocket) Modern UI state management Distributed systems: Kafka/Chronicle PostgreSQL/KDB++ Caching strategies Avro/Protobuf DevOps: Linux ...

principles (SOLID, DRY, ER modelling) Professional experience with a server‐side language, ideally JVM based Professional experience building web‐based single page applications, using React/Typescript or an equivalent Knowledge of front‐end development, able to build rich user interfaces following a responsive design HTML/CSS experience, including ...

want to leave a mark. Frontend Team The frontend team builds the surfaces people trust with their money. This includes our mobile app (React Native), web experiences (React), and the layer between user experience and backend systems. As a Senior Frontend Engineer, you operate across the full stack, but your … that feel calm, predictable, and trustworthy, even when the underlying systems are complex. What you will do Build and own core product surfaces using React and React Native, powering critical flows like onboarding, balances, sending, and receiving money. Design frontend architecture that scales across platforms while maintaining consistency, performance ...

SOFTWARE ENGINEER TO HAVE. Current enhanced DV clearance Experience with at least one or more of the following: Java, Python, C++, .NET, C#, JavaScript, React Experience mentoring juniors or leading a team Experience/Knowledge of automation IT WOULD BE NICE FOR THE SENIOR SOFTWARE ENGINEER TO HAVE. Cloud based ...

side and server-side rendering Experience of building services that meet WCAG accessibility requirements Desirable Understanding of backend development, ideally with Python Experience with React Experience with the GOV Design System and of building services that meet the Service Standard Experience with cloud platforms, ideally AWS Experience of building dashboards ...

frameworks Skills & Experience 3–5 years' software development experience Strong Python development skills with FastAPI, Flask or Django Experience building full-stack applications using React, JavaScript/TypeScript and Node.js Knowledge of GitHub, CI/CD, automated testing and Agile delivery methodologies Databricks experience highly desirable, including Lakehouse architecture ...

services using patterns such as microservices and event-driven architecture. Strong understanding of SQL/NoSQL and clean documentation. Hands-on experience with TypeScript (React, AWS CDK), Git, YAML, Terraform, CloudFormation, Bash/Zsh, and modern tooling (VSCode, GitHub, Vite, Rollup, tsx, npm). Proficiency with unit, integration ...

SOFTWARE ENGINEER TO HAVE.... Current enhanced DV clearance Experience with at least one or more of the following: Java, Python, C++, .NET, C#, JavaScript, React Experience mentoring juniors or leading a team Experience/Knowledge of automation IT WOULD BE NICE FOR THE SENIOR SOFTWARE ENGINEER TO HAVE.... Cloud based ...

other JVM‐based languages, including the Spring framework. Experience building and designing scalable web applications that handle large amounts of traffic - ideally using React based frontend applications, Javascript/Typescript. System Design & Operations: Proven experience designing and operating CI/CD pipelines, Distributed, and Concurrent Systems. Product Ownership: A strong ...

overall system design: service boundaries, data ownership, scaling, and observability Essential Qualifications Built modern full‐stack applications (Python/Java/Go + React/ts) Worked with a variety of storage technologies (eg. Postgres, Mongo, Redis, Object) Experience with async and bi‐directional communication protocols and patterns (eg. WebSockets ...

roles. Proven track record deploying AI/ML or data‐intensive applications in production. Strong full‐stack skills: Python, Node.js/Go, React/Vue, SQL, REST/GraphQL. DevOps proficiency: Docker, Kubernetes, CI/CD, and major cloud platforms. Expertise in LLMs, prompt engineering, vector DBs, RAG pipelines ...