26 to 50 of 69 React Jobs in the City of London

core platform capabilities, where the business rules live once, and TypeScript for the workflows and AI agents built on top of them, with React micro-frontends on the front end, all on AWS. Core business capabilities come first, in .NET: carved out of the existing monolith rather than rewritten ...

skills, including APIs, background jobs and integrations. Strong SQL skills and experience investigating and reconciling data across systems. Experience building straightforward web interfaces using React, Next.js or similar tools. Familiarity with testing, version control, deployment and monitoring. Sound judgement about implementation choices, trade-offs and ongoing maintenance. Experience with Salesforce ...

maintain complex SQL data models, ensuring efficient data structures, query performance, and reliability. Full‐Stack Development: Develop responsive and performant front‐end applications using ReactJS, focusing on UX/UI best practices. Integration & Automation: Architect and maintain integrations with external APIs such as AWS, Stripe, Zendesk, Twilio, Google Analytics, Google … field from a Tier 1 university. Experience: Minimum of 4 years of full‐time professional experience in software development, with strong expertise in TypeScript, ReactJS, and Next.JS. Solid experience in building RESTful APIs Leadership: Proven track record of leading development teams and managing large‐scale projects. Database Expertise: In‐depth ...

Forward Deployed Engineer (AI & Full-Stack) Remote (UK-based) 6-Month Initial Contract £60 per hour (Umbrella) Inside IR35 Stack: Go, React/TypeScript, GCP (Cloud Run, Pub/Sub), PostgreSQL, Automated AI Workflows A well established firm is looking for a hands-on Forward Deployed Engineer to join ...

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 ...

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 ...

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 ...

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. ...

SaaS scale-up in the UK. We seek an Engineering Lead to guide small squads (up to 4 engineers) while staying hands-on across React, Node.js/TypeScript, and GCP/AWS. You’ll help shape scalable features and mentor engineers as the product expands. The role is remote-first ...

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 ...

powered workflows.What You'll Be Responsible ForDesigning, building, testing, deploying and supporting software across the full development lifecycle.Developing front-end applications using TypeScript, React and Redux.Building back-end services using Java, Node.js and REST APIs.Developing analytics and data processing components using Python.Designing data models and working with relational and document … understand requirements and translate business needs into technical solutions.Required Skills and ExperienceStrong software engineering skills in TypeScript/JavaScript, Java and Python.Experience with React, Redux and Node.js.Experience building Java services using frameworks such as Spring Boot.Strong understanding of software design, API development and data modelling.Experience with automated testing and modern ...

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 ...

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 ...

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 ...

Product roadmap Managing a team consisting of a range of skillsets and experience Full stack development, across Python/FastAPI services and React/TypeScript front ends Continuously improving the team's processes for iterative development, including embedding automated testing and CI quality gates into a fast-moving AI product … objectives and assisting with tailored development plans Our engineering environment includes technologies such as Python (FastAPI), LangChain/LangGraph for multi-agent LLM orchestration, React/TypeScript, PostgreSQL, MongoDB, Redis, Azure (App Service, Container Registry, Blob Storage), Docker, GitHub Actions, and modern CI/CD pipelines. About You: You will ...

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 ...

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 ...

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 ...

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 ...

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 ...

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/ ...

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 ...

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 ...

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 ...

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 ...