701 to 725 of 998 React Jobs in London

Data Engineer/Developer

Hiring Organisation
ARM
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £490/day
enabled solutions. This role is primarily focused on Snowflake, Azure, Python and CI/CD, with some exposure to .NET/C# and React/TypeScript environments. The successful candidate will build and support scalable data solutions, contribute to cloud-based platform development and help drive engineering best practice across … GitHub. Experience using AI development tools such as GitHub Copilot or Microsoft Copilot. Financial Services, Asset Management or Wealth Management experience .NET/C# React/Typescript Desirable Skills Power BI Advanced Snowflake capabilities (Snowpipe, Streams, Tasks) Disclaimer: This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced ...

Data Engineer/Developer

Hiring Organisation
Advanced Resource Managers Limited
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£450.00 - £490.00 per day
enabled solutions. This role is primarily focused on Snowflake, Azure, Python and CI/CD, with some exposure to .NET/C# and React/TypeScript environments. The successful candidate will build and support scalable data solutions, contribute to cloud-based platform development and help drive engineering best practice across … GitHub. Experience using AI development tools such as GitHub Copilot or Microsoft Copilot. Financial Services, Asset Management or Wealth Management experience .NET/C# React/Typescript Desirable Skills Power BI Advanced Snowflake capabilities (Snowpipe, Streams, Tasks) Disclaimer: This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced ...

Software Engineer III (UI) - Digital Markets Execution Technology (DMET), Execute

Location
Greater London, England, United Kingdom
will help build and evolve Execute, a real-time, latency-sensitive front-office trading UI used across global markets. You will deliver complex React and TypeScript web applications in close partnership with product, UX, QA, and back-end teams across a global organization. Your success will be measured by resiliency … hidden problems and patterns in data and uses these insights to drive improvements to coding hygiene and system architecture Build and evolve real-time React and TypeScript UI features for Execute, supporting complex, high-throughput trading workflows. Contribute to UI architecture and design for latency- and availability-sensitive experiences, balancing ...

Software Development Engineer III

Location
Greater London, England, United Kingdom
troubleshoot complex issues, perform root cause analysis and continuously improve reliability, quality and speed of delivery. Build and maintain web-based user interfaces using React.js, modern JavaScript/TypeScript, HTML and CSS, enabling colleagues to interact effectively with data and AI based tools. Technical Excellence: Promote strong software engineering practices … experience building LLM-powered applications (e.g. copilots, assistants, agent based workflows), with a focus on reliability and real user impact. Good working knowledge of React.js and modern JavaScript/TypeScript, with experience building and maintaining production web interfaces. Proficiency with HTML and CSS, and an understanding of usability, accessibility ...

Senior Software Engineer

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
maintain CI/CD pipelines with automated testing, linting and deployment as standard. On the frontend, you will build modern, responsive user interfaces using React with TypeScript, collaborating closely with Product and Design to translate requirements and wireframes into functional, accessible UI components. You will ensure frontend performance, accessibility … engineering with a strong track record of delivering production systems. You have backend proficiency in Python with Django or FastAPI, strong frontend experience with React and TypeScript including component architecture, state management and modern tooling, and a solid understanding of relational databases, PostgreSQL preferred, covering schema design, query optimisation ...

Full-Stack Software Engineer III

Hiring Organisation
JP Morgan Chase
Location
London, United Kingdom
Salary
£ 100 K
team that values quality, innovation, and continuous improvement.Job ResponsibilitiesApply advanced technical skills to design, develop, and deliver full-stack solutions across frontend (React) and backend (Node.js/TypeScript, Python) servicesCreate secure, high-quality production code and maintain algorithms that run reliably and synchronously with appropriate systemsProduce architecture and design artifacts … experienceHands-on practical experience in system design, application development, testing, and operational stabilityProficiency in modern programming languages, with strong experience in JavaScript/TypeScript (React, Node.js) requiredExperience developing, debugging, and maintaining code in a large-scale environment using modern programming and database querying languagesSolid understanding of agile methodologies, including continuous ...

Full-Stack Software Engineer III

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
team that values quality, innovation, and continuous improvement. Job Responsibilities Apply advanced technical skills to design, develop, and deliver full-stack solutions across frontend (React) and backend (Node.js/TypeScript, Python) services Create secure, high-quality production code and maintain algorithms that run reliably and synchronously with appropriate systems Produce … practical experience in system design, application development, testing, and operational stability Proficiency in modern programming languages, with strong experience in JavaScript/TypeScript (React, Node.js) required Experience developing, debugging, and maintaining code in a large-scale environment using modern programming and database querying languages Solid understanding of agile methodologies, including ...

Fullstack Senior Software Engineer (TypeScript, C#, AWS) 12 mnth Maternity Cover

Location
City Of London, England, United Kingdom
solve across a dual-stack C# and TypeScript backend, being intentional about choosing the right tool for the job. Implement microfrontend web applications in React and TypeScript, with an eye for component design and the UX implications of what you build. Take end-to-end ownership of features from early … Technology Stack We believe in using the right tool for the job. Our current stack includes: Backend: TypeScript, Node.js, C#, .NET Frontend: TypeScript, React Cloud & Infrastructure: AWS (ECS, Lambda, SQS, DocumentDB, DynamoDB), Terraform, SST (Infrastructure as Code) Architecture: Microservices, Microfrontends, Event-driven architecture What You Need to Be Successful ...

Senior Software Engineer I (JavaScript)

Location
Greater London, England, United Kingdom
design, write, test, and improve software. About the role We are seeking a talented and self-motivated Frontend Software Engineer with strong skills in React and Node.js and a collaborative mindset. You will work as part of a cross-functional product development team building modern web applications used by millions … engineering team through collaboration, knowledge sharing, and participation in recruitment. Requirements Strong knowledge of HTML, CSS, and JavaScript Experience building modern web applications using React Experience working with Node.js, Express, or related backend services Experience working with RESTful APIs Familiarity with agile development practices such as: Test-Driven Development Pair ...

SVP - GenAI Full-Stack Engineer Lead

Location
Greater London, England, United Kingdom
## SVP - GenAI Full-Stack Engineer LeadApplyremote type: Hybridlocations: London United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: 26982594Engineer the future of global finance. At Citi, our Tech team doesn’t just support ...

SVP - GenAI Full-Stack Engineer Lead

Hiring Organisation
Citigroup
Location
London, United Kingdom
Salary
£ 80 K
Job ID: 99038764240Posted: 2026-08-21Location: London, England, United KingdomCategory: Technology, Applications Development, ProfessionalCompany: CitiEngineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to ...

SVP - GenAI Full-Stack Engineer Lead

Hiring Organisation
Citigroup
Location
London, UK
Employment Type
Full-time
Job ID: 99038764240Posted: 2026-08-21Location: London, England, United KingdomCategory: Technology, Applications Development, ProfessionalCompany: CitiEngineer the future of global finance. At Citi, our Tech team doesn't just support finance – we are helping to ...

Lead/Senior Software Engineer

Hiring Organisation
Rover.com
Location
London, United Kingdom
Salary
£ 80 K
learning.Has great mentorship skills.Your Qualifications: 7+ years of experience as a professional software developerLong-term experience with frontend development.Strong and proven knowledge of ReactJs or React NativeExperience with Python or another backend language.Solid knowledge and understanding of relational databases and schema designPassionate about automated testing, code quality, and general software … repetitive tasks, or using AI tools beyond basic code completion.Your Bonus Skills:Professional experience with Django and other Python-based frameworksKnowledge/Interest in React NativeFamiliar with continuous integration/deployment tools.General Skills:You are a great team player.You are meticulous about design and user experience because you want ...

Software Engineer

Location
Greater London, England, United Kingdom
natural-language video search, real-time detections, and agentic workflows built on multimodal LLMs and computer vision Implement user-facing frontends in TypeScript/React, working closely with product Design scalable APIs and systems that interface with our ML pipelines and edge device fleet Collaborate on infrastructure and architecture decisions … Bachelor's degree in Computer Science or similar relevant experience Strong experience with Golang, Python, or C++ Experience with modern frontend stacks — TypeScript, React (react-query, Tailwind) Experience designing and building scalable backend systems and APIs Comfort with distributed systems, containers, and cloud-native infrastructure (we run Kubernetes ...

Senior/Lead Frontend Developer

Location
City Of London, England, United Kingdom
experienced Senior Frontend Developer to join their team in London on a hybrid basis. The Senior Frontend Developer will bring expertise in React and Next.js and will have a passion for building scalable user interfaces. We are looking for a hands on developer who will contribute towards/own frontend … architecture designs and quality code standards. You will design, develop and maintain high quality frontend features using React and Next.js. React/Next.js/JavaScript/TypeScript/App Router/Server/Rendering/Turbopack/Architecture Experience: Strong professional experience building applications with React and Next.js (ideally React ...

Senior Front-End Engineer React

Hiring Organisation
Halian Technology Limited
Location
Central London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
Senior Front End Engineer (React/TypeScript) London Hybrid (2-3 days per week) Build the platform that powers client onboarding at scale We're looking for a Senior Front End Engineer to help shape and build a modern onboarding and account management platform used by businesses across multiple customer … deeply about customer outcomes, software quality, and building the right solutions, not just shipping features. The Opportunity You'll be working on a modern React-based single-page application, building complex onboarding journeys, integrating with external services, and helping define the future direction of the platform's frontend architecture. ...

Senior Manager of Software Engineering - Java / React

Location
Greater London, England, United Kingdom
certification in software engineering concepts Hands-on experience in system design, application development, testing, and operational stability Advanced working experience with Java, Spring Boot, React, and Kubernetes Proficiency in automation and continuous delivery methods Skilled in all aspects of the Software Development Life Cycle Advanced understanding of agile methodologies, including … Preferred Qualifications, Capabilities, and Skills: Experience with Java and Oracle Familiarity with messaging platforms such as RMQ and Kafka Expertise in Kubernetes Proficiency in ReactJS and JavaScript Functional knowledge of FX or Dervis Settlements domain If you’re looking for a place where your skills are valued and your contributions ...

Senior Manager of Software Engineering - Java / React

Location
Greater London, England, United Kingdom
certification in software engineering concepts Hands-on experience in system design, application development, testing, and operational stability Advanced working experience with Java, Spring Boot, React, and Kubernetes Proficiency in automation and continuous delivery methods Skilled in all aspects of the Software Development Life Cycle Advanced understanding of agile methodologies, including … Preferred Qualifications, Capabilities, and Skills: Experience with Java and Oracle Familiarity with messaging platforms such as RMQ and Kafka Expertise in Kubernetes Proficiency in ReactJS and JavaScript Functional knowledge of FX or Dervis Settlements domain If you're looking for a place where your skills are valued and your contributions ...

Senior Full Stack Engineer - Agentic Industrial Emissions Platform (React and Go)

Hiring Organisation
IFS
Location
London, United Kingdom
Salary
£ 80 K
full stack software engineering, with proven capability across both front-end and back-end development. Solid experience with modern front-end technologies, particularly React or similar frameworks. Strong back-end engineering experience, ideally including GoLang or comparable general-purpose programming languages. Experience designing and building scalable APIs, services, and cloud ...

React.JS Developer – Hedge Fund – Typescript

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 100 K
React.JS Developer – Hedge Fund – Typescript120k Plus BonusQuant Capital is urgently looking for a React.JS Developer to join our high profile client.Our client is a $2 billion strong quant hedge fund with performance figures of 22%. They are currently looking to expand their high and intraday trading presence across … things done’ attitude capable of taking projects from inception to completion.At least a bachelor’s degree in a technical or quantitative field.Stack:Frontend: TypeScript, React, Openfin, WebSockets to build our real-time, multi-window, multi-monitor UI.Backend: Java, Aeron messaging/Aeron Cluster to build our high performance, fault-tolerant ...

Principal Engineer (Gen AI and MACH Architecture)

Location
Greater London, England, United Kingdom
. Cloud and edge hosting: GCP , Vercel , AWS, Azure, Netlify and related deployment models. Front‐end integration literacy: HTML, CSS, JavaScript and Next.js + React ; mobile technologies (SwiftUI, Kotlin, Flutter or React Native) advantageous. CMS, DXPs, MarTech and SaaS integration in complex enterprise landscapes; including headless CMS platforms such ...

Principal Engineer (Gen AI and MACH Architecture)

Hiring Organisation
Akqa
Location
London, United Kingdom
Salary
£ 70 K
DevOps, GitLab).Cloud and edge hosting: GCP, Vercel, AWS, Azure, Netlify and related deployment models.Front-end integration literacy: HTML, CSS, JavaScript and Next.js + React; mobile technologies (SwiftUI, Kotlin, Flutter or React Native) advantageous.CMS, DXPs, MarTech and SaaS integration in complex enterprise landscapes; including headless CMS platforms such as Contentful ...

Principal Engineer (Gen AI and MACH Architecture)

Hiring Organisation
Akqa
Location
London, UK
Employment Type
Full-time
GitLab).Cloud and edge hosting: GCP, Vercel, AWS, Azure, Netlify and related deployment models. Front-end integration literacy: HTML, CSS, JavaScript and Next.js + React; mobile technologies (SwiftUI, Kotlin, Flutter or React Native) advantageous. CMS, DXPs, MarTech and SaaS integration in complex enterprise landscapes; including headless CMS platforms such ...

Technical Lead (AI & MACH)

Location
City Of London, England, United Kingdom
Infrastructure as Code, CI/CD Use of Middleware and RESTful or GraphQL APIs Microservices and MACH Architectures. HTML, CSS, Javascript frameworks such as React, or Mobile technologies such as SwiftUI, Kotlin, Flutter or React‐native CMS, DXPs and common MarTech SaaS products integration Atlassian, Azure DevOps, GitLab or similar ...

Staff Engineer

Location
Greater London, England, United Kingdom
healthy - from shipping features to debugging issues. Specific requirements : Backend experience with Node.js and/or Python (FastAPI, Flask) Experience with front end frameworks (React, Next.js, Typescript). Exposure to cross platform frameworks a plus (e.g. React Native). Experience deploying and operating systems on at least one major cloud ...