26 to 50 of 62 React Jobs in the City of London

Senior Full Stack Engineer - AI-Native Pubity Suite

Location
City Of London, England, United Kingdom
decisions impacting various components of the business. The ideal candidate has over 4 years of experience in web application development, with strong skills in React and TypeScript, and must be comfortable integrating with AI tooling and databases. This is a hybrid role with competitive salary and benefits. #J-18808-Ljbffr ...

Senior Full-Stack Engineer

Location
City Of London, England, United Kingdom
complex technology into products people can easily use. Requirements: Must be based in Singapore 5+ years of experience shipping production software. Strong TypeScript and React/Next.js experience. Backend and API experience, with confidence owning features across the stack. Experience delivering independently or within small teams. Good security judgment ...

Senior Software Engineer - Full-Stack (React/Node) | Hybrid

Location
City Of London, England, United Kingdom
Online Filings is seeking a Senior Software Engineer to architect and develop our next-generation web application and API. This role requires technical leadership, hands‐on development, and mentoring of junior developers to ensure scalability ...

Senior Product Engineer, Legal AI Frontend

Location
City Of London, England, United Kingdom
Engineer to join the AI Search and Retrieval Context Engineering team, building next‐generation legal AI experiences for law firms. You’ll work on React and TypeScript to create trusted, enterprise‐grade front‐ends integrated with AI retrieval, while collaborating with lawyers and knowledge teams to fit real workflows. ...

Full Stack Engineer

Location
City Of London, England, United Kingdom
features you ship will be in clients’ hands the next day. Build and release features across the Dot stack, from Next.js and React through to Node and TypeScript APIs and SQL Own one or two areas of the platform once you’re up to speed, including bugs, support queries ...

Engineer C# (Full Stack)

Location
City Of London, England, United Kingdom
Group Overview The TP ICAP Group is a world‐leading provider of market infrastructure. Our purpose is to provide clients with access to global financial and commodities markets, improving price discovery, liquidity, and distribution of ...

Front End Engineer - Data Dashboards (React/TypeScript)

Location
City Of London, England, United Kingdom
Unknown is seeking a Front End Engineer to join our data-driven finance team. Based in Liverpool or London with a hybrid working pattern, this 12-month fixed-term contract focuses on building responsive, data ...

Senior Front-End Engineer — Create Next-Gen Energy UIs

Location
City Of London, England, United Kingdom
renewable energy startup located in London is seeking a skilled Web Developer to create and maintain responsive applications using modern technologies like React and TypeScript. The ideal candidate should have over 5 years of experience in web development, proven success in launching consumer-facing products, and strong collaboration skills. This ...

Lead Software Engineer – Residential Operations Platform

Location
City Of London, England, United Kingdom
security are part of the job from day one. Key responsibilities Front-end engineering and product delivery Design, build and improve applications using React and TypeScript. Develop accessible, maintainable front-end experiences using HTML and CSS. Improve front-end performance, reliability and the user experience. Work across the software development … capability and, over time, help build and develop a larger team. Person specification Experience and knowledge, essential Strong commercial experience building production applications in React and TypeScript. Working experience of .NET Core, Node.js, SQL Server and API design using REST and GraphQL. Experience leading technical design and reviewing other engineers ...

Front-End Engineer, Investment Analytics UI

Location
City Of London, England, United Kingdom
Group is seeking a Front-End Engineer to build modern investment analytics applications in the UK. You will craft responsive interfaces using TypeScript and React, delivering intuitive workflows for portfolio comparison, risk and performance analysis. You will integrate with APIs, work with complex datasets, and visualise data with charts ...

Senior Software Engineer

Hiring Organisation
The Portfolio Group
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90000/annum
software solutions using Python and TypeScript. Building robust backend services and APIs using Python, ideally FastAPI. Creating responsive, maintainable frontend applications using React and TypeScript. Developing and integrating services that connect modern applications with AI-powered capabilities. Designing solutions involving APIs, databases, event-driven architectures and distributed systems. Working with … looking for someone equally comfortable across backend and frontend engineering. Strong commercial Python experience building, deploying and maintaining production services. Excellent TypeScript and React development experience. Experience with FastAPI or similar Python backend frameworks. A strong understanding of software architecture, system design and engineering trade-offs. Solid knowledge of concurrency ...

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 ...

Full Stack Engineer (Front-End Leaning)

Location
City Of London, England, United Kingdom
focus, you will design, develop, and maintain high-quality, scalable, and secure systems across the technology stack. You will build modern web applications using React and Next.js, while also contributing to backend services, APIs, databases and deployment pipelines. You will work closely with founders, the growth team, designers and fellow … demands of a rapidly evolving business. Key requirements/What we look for At least five years’ professional software engineering experience. Production experience with React and Next.js. Strong backend development skills, preferably in Python, Django or FastAPI. Experience with databases, Redis, background workers and task queues. Knowledge of Git, Docker ...

Senior Engineer - LMEsmart

Location
City Of London, England, United Kingdom
Senior Engineer - LMEsmart Shift Pattern: Standard 40 Hour Week (United Kingdom) Scheduled Weekly Hours: 40 Corporate Grade: D - Assistant Vice President Reporting Line: (UK Division) Information Technology Location: UK-London Worker Type: Permanent Overall Purpose ...

Senior Software Engineer - Growth

Location
City Of London, England, United Kingdom
Node.js/TypeScript on AWS — serverless services using Lambda, API Gateway, DynamoDB, S3, SNS, SQS, EventBridge and Kinesis, alongside containerised workloads where needed Frontend: React Native/Expo/React/Next.js Infrastructure: Terraform, GitHub Actions CI/CD, Docker Observability: Datadog, Grafana, Prometheus, Loki RESPONSIBILITIES Work as a product … Strong Node.js/TypeScript experience, ideally with AWS and event‐driven or serverless architectures Experience building customer‐facing web or app features, preferably with React Native/Expo/React/Next.js or similar modern frontend frameworks Good understanding of Infrastructure as code with Terraform; CI/ ...

Member of Technical Staff, Full Stack

Hiring Organisation
FBI &TMT
Location
City of London, London, United Kingdom
Employment Type
Permanent
models and computer vision Design and build scalable APIs connecting machine learning pipelines with edge device fleets Develop user-facing applications using TypeScript and React, including modern tools such as React Query and Tailwind Contribute to infrastructure, system architecture and cloud-native engineering decisions Work on distributed systems, real-time … Strong experience in software engineering using Go, Python or C++ Proficiency in designing and building scalable backend systems and APIs Practical experience with TypeScript, React and modern frontend development Understanding of distributed systems, containers and cloud-native infrastructure Experience working with Kubernetes, AWS and infrastructure as code, such as Pulumi ...

Full Stack Engineer - Java, Microservices, Spring Boot, Docker, React, TypeScript & Redux

Location
City Of London, England, United Kingdom
engineers from other squads to make decisions around technologies, patterns, and approaches to adopt. What you bring Experience with front-end technologies, such as React, Webpack, TypeScript, Redux, and Material UI. Experience building and operating large scale and highly available microservices deployed to the cloud. Experience building microservices with latest ...

Associate Software Developer (Web)

Location
City Of London, England, United Kingdom
contribute to development across our web and mobile applications. You’ll build your skills across a Scala + Play Framework backend and a React + AG-Grid front-end, while using gRPC to communicate with our core product’s backend systems. Working with guidance from senior engineers, you’ll help … product stakeholders to understand requirements, clarify details, and deliver practical solutions. Tech Stack Backend: Scala, Play Framework, REST/JSON and gRPC Frontend: React, TypeScript, AG-Grid Mobile: Current app in CodenameOne, target migration to React Native (or similar JS-based cross-platform framework) Tooling: Jenkins, GitLab, SonarQube, IntelliJ IDEA ...

Senior Consultant, Product Engineer

Location
City Of London, England, United Kingdom
understand the problem, shape the user experience, think through the system design and then build high‐quality software. The role is primarily focused on React, TypeScript and modern user experience development, but the expectation is broader than UI delivery. You will work close to lawyers, knowledge teams, innovation teams … document previews, citation views, agent workflows, feedback loops, dashboards, admin screens and embedded components for tools lawyers already use. You will mainly work in React and TypeScript, building polished, enterprise‐grade applications that are fast, accessible, secure and suitable for professional legal users. You will work with AI engineers, retrieval ...

Front End Software Engineer - ACE

Location
City Of London, England, United Kingdom
customers and internal teams interact with ACE, turning complex operational, sensor and AI-generated data into intuitive, reliable and actionable experiences. Working primarily with React and TypeScript, you will take ownership of frontend features from design and architecture through to implementation, testing and deployment. You will work closely with Product … product experiences that can operate reliably in real-world data centre environments. Duties and Responsibilities Design, build and maintain production-grade frontend applications using React, TypeScript and Next. Build intuitive interfaces that make complex operational, time-series and AI-generated data easy for users to understand and act upon. Develop ...

Principal Software Developer (Web)

Location
City Of London, England, United Kingdom
critical product surfaces across our web and mobile applications. You’ll work end-to-end across a Scala + Play Framework backend, and a React + AG-Grid front-end, using gRPC for communication with our core product’s backend systems. You will lead the technical direction as we build … well as continuing the evolution of our Mobile app. Responsibilities Design & Build: Deliver robust, maintainable features across the stack (Scala/Play backend, React/AG-Grid frontend) Mobile Migration: Define the path from Codename One to a JS-compatible framework (likely React Native), including architecture, incremental migration strategy ...

Senior Python Developer - Fully Remote

Hiring Organisation
G.R.E. Recruitment Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£65,000
Fully Remote Senior Full Stack Python Developer (Python, Django, SQL/Postgres, Typescript, ReactJS) - Solo Python Developer Role - Up to £65,000 - Fully Remote (They do have an office based near Gatwick Airport if you want to work from an office) - Open to applicants in the UK Only (No Sponsorship … team. For this role I am looking for a Senior Full Stack Python Developer with: Minimum 5 years Python development experience + 2 years ReactJS experience Someone who has experience of working in small teams and perhaps in solo Python roles Strong English speaking skills Someone who is used ...

Senior GenAI Full-Stack Engineer (Java/React/Python)

Location
City Of London, England, United Kingdom
role requires leadership, collaboration with architects, and delivering scalable software solutions. The ideal candidate has 7+ years in IT solutions, strong Python and ReactJS skills, and deep knowledge of cloud and containerization. #J-18808-Ljbffr ...

Front End Developer

Location
City Of London, England, United Kingdom
Senior Frontend Developer React | TypeScript | AWS | Remote (UK) Own the frontend. Influence architecture. Build exceptional user experiences. We're looking for a talented Senior Frontend Developer to take ownership of a modern React and TypeScript application, helping shape its architecture while delivering high-quality, accessible, and scalable features. This … opportunity to play a key role in technical decision-making, improve engineering standards, and work with a modern technology stack that includes React, TypeScript, GraphQL, AWS Amplify, and AppSync. What You'll Do Build and maintain production features in a React 18+ TypeScript application Design reusable components and scalable frontend ...

Forward Deployed Engineer - Senior Manager (Palantir)

Location
City Of London, England, United Kingdom
/no code Palantir Foundry tooling, or Python and PySpark code repos - to building user-facing front-end applications and widgets in TypeScript or REACT Lead Client Advisory: Sit directly alongside clients, goals and requirements and translate complex technical language into stakeholder appropriate communication AI Integration: Actively embed AI workflows … decompose complex use cases and architect solutions than rote memorising of coding syntax Fluency in core languages (Python, SQL, TypeScript and/or REACT) and the capability to pick up others quickly. You should understand data engineering principles, ETL pipelines, and application development Familiarity with Palantir (Foundry, Gotham, or similar ...