126 to 150 of 374 React Jobs in the City of London

Node.js Software Developer – Healthcare Startup – London (Tech Stack: JavaScript, Vue.js, React, Node.js, NestJS, REST APIs, Git, Agile Methodologies) Company Overview: Join a mission-driven healthcare startup that’s transforming patient care through cutting-edge digital solutions. We are seeking a talented Software Developer who thrives in dynamic startup environments and wants to build technology that genuinely impacts lives. If you … and agile ceremonies. Stay current with modern development trends and frameworks. Requirements: 4+ years of experience as a Software Developer in a commercial environment. Proven expertise in JavaScript, Vue.js, React, and Node.js. Familiarity with backend frameworks such as Express or NestJS (desirable). Experience working in or strong enthusiasm for startup environments. Solid understanding of modern development practices, including REST More ❯

FULL STACK DEVELOPER LONDON HYBRID £50,000 - £60,000 Our Client, a Top 20 Accountancy firm who have an excellent reputation in their space, are looking for a React/Full Stack Developer to join their team on a permanent, full time basis. This person MUST be experienced in Python , Django and .react They are seeking an experienced Full Stack … Experience Required A minimum of 3 years of experience as a full-stack developer, delivering robust production-ready solutions. Proficiency in the following technologies: - Backend: Python, Django - Frontend: JavaScript, React, Next.js - Version control: Git Comfortable working with Python and JavaScript professionally, with experience in Django and React. Ability to build data-intensive applications and manage complex backend logic, including external More ❯

happy to work "high-side", on-site 5 days/week? And... do you have experience with a few of the following technologies?: Java Kotlin Python Kubernetes AWS JavaScript React Node.js ✅✅✅... let's chat! Salary: £55,000 - £80,000 + benefits. Start dates: Anytime in the coming 6 months Interview process: 2-stage virtual Please apply directly or message More ❯

Software Development Lead Key Requirements: To be considered, you must have strong, recent hands-on experience in the following areas: Leading small software development teams Front-end development with React and JavaScript Microsoft Azure cloud platform (not AWS or GCP) .NET backend development Event-driven architecture and event sourcing Experience in or exposure to the financial services industry (highly beneficial More ❯

Senior Fullstack Engineer £90,000 - £120,000 London or Paris - hybrid Tech stack: Typescript, React, NextJS, NodeJS, Express, PostgreSQL SR2 are very excited to be working closely with Capi Money to grow their engineering team. Now they are on a hypergrowth journey, looking for great engineers who care about making an impact. About the Company: Capi helps businesses in Africa … that collects company information and KYC documents from customers Asynchronous workers that OCR invoices Internal tooling to manage and process millions of dollars of transactions Our stack is: Typescript, React, NextJS, NodeJS, Express, PostgreSQL Requirements Experience in a VC-backed engineering team and building products used by customers A strong understanding of web development, frontend and backend best practices Excellent More ❯

have experience using both Backend and Frontend technologies, including: .NET Development, C#, .NET Core and .NET Framework, MVC, Web API HTML (Valid & semantic markup, SEO best practices) CSS JavaScript (React, Next.js, TypeScript, Internationalization/Localization) Experience with content management systems More ❯

Candidate: Proven experience with backend/fullstack development using Node.js , Python , and AWS serverless architecture Strong database design skills (PostgreSQL, DynamoDB, Elasticsearch) Familiarity with frontend frameworks like Vue or React Comfortable mentoring developers and influencing technical direction Experience in financial services or a data-heavy B2B environment is a plus 🛠 Tech Stack: Node.js , Python , AWS (Lambda, DynamoDB, CloudWatch, CloudFormation), PostgreSQL More ❯

in .NET (ASP.NET & C#). In depth Experience in ASP.NET, Version 3.1 or higher, .NET core and full stack. Substantial experience with IIS, HTML 5.0, JavaScript, CSS 3.0, Ajax, React Js. Basic Knowledge of Oracle and MS SQL Server. Experience working with Agile development methodologies. Strong testing and debugging skills. Excellent communications skills. Must have the ability to quickly learn More ❯

experience with WordPress Strong knowledge of Gutenberg and best practices Ability to create custom Gutenberg blocks Knowledge of PHP, HTML and CSS Front End development experience in JavaScript and React Knowledge of VCS and Git Ability to communicate your ways of working and collaborate with team members As a WordPress developer, this is a unique opportunity to join a market More ❯

on tech decisions Pragmatic, product-minded and always looking to solve real-world problems with elegant solutions Bonus: experience with LLMs, agent-based systems, or front-end tools like React/d3 More ❯

snacks Requirements: 10+ years of software engineering experience Strong proficiency in C# Track record of delivering scalable, greenfield products Relational database experience - ideally Postgres API experience Ideally proficiency in React and/or Typescript Bachelor's degree - ideally in computer science or related Strong preference to candidates with experience in trading/financial services environments If the described opportunity sounds More ❯

features to build . They want their tech to be fully automated and do all of the heavy-lifting. Their stack is a Python (Flask) backend and a TypeScript ( React/Redux/Next . js ) frontend, on a mix of Heroku and AWS . They also use PostgreSQL . ✅ This will suit a product-minded, backend-focused engineer who More ❯

relational database technologies as such as Memcached, MongoDB and Redis. Experience with Insurance/Reinsurance Systems and Data. High level knowledge/expertise of Front-end development such as: ReactJS, Webpack, HTML5, CSS, Bootstrap, jQuery, Accessibility and Responsive Layouts UI/UX development experience. More ❯

and mentoring other engineers Building greenfield features that solve real-world problems Driving quality and innovation across the engineering team What They’re Looking For: Deep experience with TypeScript , React , Python , AWS , PostgreSQL , and an interest in AI (GenAI a plus!) Bonus points for experience with other backend languages like Go , Elixir , Clojure , Ruby , C++ , Haskell , Scala , etc - Even more More ❯

experience. Core skills for the Senior Full Stack Engineer : 5yrs+ in a commercial Development role - currently in a Senior Full Stack role Solid experience of Java strong TypeScript/React (other JS Frameworks considered) knowledge in Cloud technologiues (AWS) and Microservices Architectures Ideally a degree in Computer Science, Engineering, or a related field, or equivalent hands-on experience in engineering. More ❯

We Are Looking For: At least 5 years of experience as a Developer Strong knowledge of modern PHP 8+ (Laravel/Symfony) Proficiency in JavaScript/TypeScript, NestJS and ReactJS Experience building platforms using event-based architecture and CQRS Familiarity with AWS Services such as Aurora, MSK Kafka, ECS, and EMR Experience writing automated unit and integration tests Excellent practical More ❯

for: Experience at Mid, Senior and Lead/Manager level (full-stack or backend) 3+ years of commercial experience in Python 2+ years with any frontend JavaScript frameworks i.e. React/Angular/Vue.js Experience with frameworks like Django, Flask or FastAPI Exposure to cloud platforms such as AWS, Azure, or GCP UK-based, ideally London or commutable and able More ❯

insights into user flows Contribute to overall system design: service boundaries, data ownership, scaling, and observability Essential Qualifications: Built modern full-stack applications (Python/Java/Go + React) Worked with a variety of storage technologies (eg. Postgres, Mongo, Redis, Object) Experience with async and bi-directional communication protocols and patterns (eg. WebSockets, SSE) Designed and implemented event-driven More ❯

of design patterns, microservices, and API architecture. Proficiency in serverless architecture and database systems (e.g., RDBMS, NoSQL). Strong programming experience across multiple languages and frameworks (e.g., Java, Python, ReactJS, XML, JSON). Knowledge of cloud platforms (preferably AWS), and experience with containerisation/orchestration technologies. Familiarity with search engines and knowledge graph technologies. Experience working in agile and DevOps More ❯

experience in software design and development, and hands-on experience in building UI heavy experiences. Necessary Strong proficiency in modern design patterns and development languages including JavaScript, Typescript (and React), HTML and CSS, Liquid Strong proficiency in Figma and design principles Experienced with writing custom Web Components Experience working in large-scale international eCommerce teams Solid grounding with common design More ❯

you got if you aren’t a perfect fit): 2-4 years of software development experience Proficiency in JavaScript Proven experience working with frontend frameworks such as Vue.js/React/Angular (or similar) and related tools and libraries Ability to take complex designs from Figma and convert to corresponding HTML/CSS/JS code Experience/knowledge of More ❯

of responsive design principles. Familiarity with SEO best practices in front-end development. Experience with cross-browser testing and debugging tools. Desirable Skills Experience with modern JavaScript frameworks (e.g., React, Vue.js). Familiarity with PHP for customising WordPress themes or resolving back-end issues. Knowledge of version control systems (e.g., Git). Understanding of Web Core Vitals and Google’s More ❯

You'll Lead AI/ML: TensorFlow, PyTorch, MLflow, NVIDIA Triton, custom financial LLMs Data: Kafka, Flink, Snowflake, ClickHouse, Neo4j, vector databases Backend: FastAPI, GraphQL, microservices, Docker, Kubernetes Frontend: React/Next.js, TypeScript, real-time dashboards, mobile apps Cloud: AWS/Azure multi-cloud, Terraform, DataDog monitoring Fintech: QuantLib, Bloomberg APIs, regulatory reporting systems 💼 What You'll Own Technical Leadership More ❯

PRINCIPAL SOFTWARE ENGINEER CITY OF LONDON - 4/5 DAYS IN OFFICE £100,000 - £120,000 Are you a highly analytical Full Stack Developer with a strong quantitative background? Do you thrive in a fast-paced environment where your skills More ❯

Elite electronic quantitative finance fintech business seek a Front End React/TypeScript software expert to join their growing team. Our client is a top end and leading global trading/investment firm and they offer some of the market industry's best technical exposure. To apply you will be keen to provide front end developing of trading web applications … making global investment decisions. The client is known for treating it's engineering staff as huge assets and on par with actual trading team.. Role involves: Developing high-performance React trading applications in a front office environment Work with front office traders, quants and data teams Be involved in full software lifecycle to design, automate and develop What is needed … A suite of front end technologies around: React JavaScript TypeScript HTML5 CSS Redux React Query Next.js Cypress Bachelor's degree in Computer Science or similar Market leading problem solvers with bleeding edge innovative technology on tap. A real start-up feel with huge, deep pockets to spend on technology. Hybrid work culture, top base salaries and bonuses on offer. Apply More ❯