1 to 25 of 113 Permanent React Jobs in Central London

Principal Software Engineer

Hiring Organisation
83zero Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Full Stack Engineer with a strong track record in senior or principal-level roles Expertise in JavaScript/TypeScript and modern frontend frameworks (e.g., React, Angular, or Vue) Strong backend development experience (e.g., Node.js, Java, Python, or Go) Proven experience designing and building scalable, distributed systems Strong experience with REST ...

Principal Software Engineer (Payments)

Hiring Organisation
X4 Technology
Location
City of London, London, United Kingdom
decisions and technical strategy Support CI/CD pipelines and cloud infrastructure Mentor developers and promote engineering best practices Tech Stack: Frontend: TypeScript, JavaScript, (React/Angular), HTML5, CSS3 Backend: Python REST APIs Data: MySQL, PostgreSQL, Redis Cloud & DevOps: AWS, Docker, CI/CD, Kubernetes (nice to have) Architecture ...

C#/.NET Full Stack Engineer

Hiring Organisation
83zero Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£46000 - £55000/annum pension, health care, perks
client stakeholders. Key Responsibilities Design and build applications using ASP.NET Core, C# and modern JavaScript frameworks Develop responsive, accessible front-end interfaces using React, Angular or Blazor/Razor Contribute to cloud-native architectures on AWS or Azure Implement modern DevOps practices including CI/CD pipelines and automated testing ...

Senior Software Engineer

Hiring Organisation
JSS
Location
City of London, London, United Kingdom
team Promote a culture of continuous learning, innovation, and engineering excellence Required Experience & Skills Strong experience building full-stack web applications using TypeScript/React and C#/.NET (or similar technologies) Deep understanding of software engineering principles, including modular architecture and design patterns Proven experience designing and developing RESTful ...

Software Engineer - Financial Services - TWE44692

Hiring Organisation
twentyAI
Location
City of London, Greater London, UK
commercial experience developing with C# and .NET (Core/.NET 6+) Experience building RESTful APIs and microservices in enterprise environments Good working knowledge of React and modern front-end development AWS services (ECS/EKS, Lambda, S3, RDS) API Gateway Experience with event-driven architectures, ideally using Kafka Understanding ...

.NET Developer, CMS, Sitecore, EpiServer, Umbraco

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £75,000 per annum
Sitecore, Optimizely, Umbraco, Alterian, Immediacy, Ektron, Kentico, Sitefinity or dotnetnuke. Our client can provide you with industry recognised training in: .NET 10.0, JavaScript, React, Angular 21, Microservices, MongoDB, Vue.js, TypeScript, Azure, AWS, ASP.NET Core Web API, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and MongoDB. This ...

Application Engineer

Hiring Organisation
Aimtech Recruitment Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
priorities in a fast-paced environment Technical Skills Power Platform (Power Apps, Power Automate, Power Pages, Power BI) Python, JavaScript, TypeScript, Angular or React ASP.NET Core, Entity Framework, REST APIs, Swagger/OpenAPI SQL Server, PostgreSQL, NoSQL databases, vector databases FastAPI and AI service integrations (OpenAI, Claude, Gemini) Docker, Kubernetes ...

AI Engineer

Hiring Organisation
83zero Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£55000 - £70000/annum
traditional software projects. Required Skills and Experience Backend development using Python with FastAPI or TypeScript with Node.js or Express Experience building microservices architectures React and TypeScript front end development experience Familiarity with Next.js or Vite Experience with Generative AI frameworks such as LangChain, LangGraph or CrewAI Experience working with Large ...

Full Stack Software Engineer

Hiring Organisation
83zero Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
components Experience enabling data scientists and engineers with Python-based development workflows and tooling Technology Stack: Azure Cloud Services C# (.NET 10) Python React.js and modern JavaScript (ES6+) Snowflake (Data Warehouse) Apache Airflow Terraform dbt SQL Server ...

Senior Software Engineer

Hiring Organisation
Signify Technology
Location
City of London, London, United Kingdom
technical leadership on the most complex architectural and performance challenges Job requirements: Strong experience with JavaScript/TypeScript and Java/Kotlin, NestJS or React, and PostgreSQL or MongoDB Hands-on experience with AWS, Docker, Terraform, and modern CI/CD pipelines A practical, nuanced understanding of AI coding tools ...

Senior Full Stack Developer - 2 days a week in London - £60-80k

Hiring Organisation
Oliver Bernard
Location
City of London, London, United Kingdom
Responsibilities Design and deliver scalable, secure web applications Build backend services using Python (e.g. FastAPI, Flask, or Django) Develop modern frontend applications using React and TypeScript Design and maintain RESTful APIs 5+ years’ experience as a full-stack developer AI & Modern Development Practices (Required) Experience using AI coding tools ...

Contract Full Stack Engineer (Commodities)

Hiring Organisation
X4 Technology
Location
City of London, Greater London, UK
highest standards in a high-performance trading environment. Requirements for the Contract Full Stack Engineer (Commodities) Strong frontend development experience with React and TypeScript Advanced Python expertise including OOP, async programming, and frameworks such as FastAPI, Flask, or Django Proven experience building and integrating RESTful and GraphQL APIs Understanding ...

Full Stack Engineer

Hiring Organisation
Affinity Labs
Location
City of London, London, United Kingdom
stage, hands-on role with significant autonomy and responsibility . You will own full-stack product delivery, from infrastructure and AI integrations through to React/React Native interfaces, collaborating closely with founders, creators, product, and design to turn lean specs into scalable, user-loved software. We’re looking … real mobile experience. Responsibilities Implement features end-to-end (mobile + web frontend → APIs → data models → integrations) while maintaining quality and velocity. Build React Native mobile apps and shared component systems across products. Design and ship scalable backend services (APIs, integrations, AI workflows). Run tight build → test → iterate → ship ...

Senior Sharepoint Consultant

Hiring Organisation
Career Legal Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent
SharePoint 2016 on-premise environments to SharePoint SE and/or SharePoint Online. Proven expertise in SharePoint Framework (SPFx) development. Proficiency in TypeScript, JavaScript, React, HTML5, CSS3, and modern front-end development practices. Strong experience integrating SharePoint solutions using RESTful APIs and Microsoft Graph. Solid experience with C# and .NET ...

Senior Sharepoint Developer

Hiring Organisation
Eutopia Solutions
Location
City of London, Greater London, UK
development • Proven experience migrating SharePoint 2016 on-premise environments to modern SharePoint platforms • Strong expertise in SharePoint Framework (SPFx) development • Proficiency in TypeScript, JavaScript, React, HTML5, and CSS3 • Strong experience with REST APIs and Microsoft Graph integrations • Solid C# and .NET experience for backend and integration development • Experience administering SharePoint ...

Senior Software Engineer

Hiring Organisation
Retelligence
Location
City of London, London, United Kingdom
experience in production environments and enjoy seeing your code solve tangible business problems. Stack Versatility: You are highly proficient in Python ( FastAPI ) and TypeScript ( React/Next.js ), with a solid grasp of SQL and GCP . Independent Execution: You are comfortable working with high levels of trust and minimal oversight ...

Senior Software Engineer

Hiring Organisation
Retelligence
Location
City of London, London, United Kingdom
features. Data & Pipelines: Experience building ingestion workflows and connecting disparate internal data sources. Stack Versatility: You are highly proficient in Python ( FastAPI ) and TypeScript ( React/Next.js ), with a solid grasp of SQL and GCP . The Profile The Practical Automator: You have a track record of saying "this process ...

Full-Stack C# Developer

Hiring Organisation
Deerfoot Recruitment Solutions Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£40000 - £110000/annum
Desirable skills: We would love to hear from you if you also have experience in multi-threaded application development, JavaScript front-end frameworks like React, network programming (TCP/UDP), or distributed version control systems like Git or PlasticSCM. Salary: £40,000 to £110,000, Benefits: Gym membership, pension scheme ...

Frontend Developer - Angular (web & mobile)

Hiring Organisation
Venator Recruitment
Location
City of London, London, United Kingdom
problem solving The tech Our core technologies are: Angular and TypeScript on the client side for our mobile apps and booking flow Next.js and React for parts of our marketing website Ionic for hybrid and progressive mobile apps Bootstrap and Chakra UI for styling Cypress for end to end testing ...

Salesforce Developer - Fully Remote (UK)

Hiring Organisation
Mojo Mortgages
Location
Central London, UK
other platforms. Experience with cloud platforms such as AWS, including services like Lambda, S3, or API Gateway. Familiarity with JavaScript frameworks such as React for building UI components or integrations. Knowledge of Salesforce DevOps tools (e.g., Git, Gearset, Copado, or similar). What we offer Remote-first working with ...

Solutions Architect

Hiring Organisation
Euro Car Parks
Location
Central London, London, United Kingdom
Employment Type
Permanent
Gopher) Agile Delivery Methodologies, SCRUM, SCRUMBAN Working in an agile environment using JIRA and Confluence Experience working in a data-centric organisation Desirable Skills React front-end development React. Native cross-platform mobile application development Android development (Java/Kotlin/Dagger2) Image Processing, ANPR (automated number plate recognition ...

Senior Software Engineer

Hiring Organisation
Cavendish Professionals
Location
City of London, London, United Kingdom
Collaborate with engineers, product, and design to ship high-quality features Requirements Experience in product-focused engineering environments Strong skills in TypeScript, Node.js, and React Experience with modern frontend tooling (e.g. Tailwind or similar) is a plus Solid knowledge of relational databases (e.g. PostgreSQL) Experience with cloud platforms and infrastructure ...

Senior JavaScript Engineer | DataGrid & Charting Libraries | London

Hiring Organisation
techstack Recruitment
Location
City of London, London, United Kingdom
C#, Java, Python, etc.) Deep understanding of algorithms, data structures, and software design Experience building complex systems — not just application-layer UI Familiarity with React, Angular, or Vue (and how they interact with the DOM) Ability to reason about performance, memory usage, and rendering behaviour High standards for code quality ...

Senior Software Engineer

Hiring Organisation
LinuxRecruit
Location
City of London, London, United Kingdom
unicorn, together, in the same room, ask the big players. What you’ll need to succeed: Strong experience building production quality software (Java, TypeScript, React or Python) Curiosity and adaptabilit y: you learn new technologies quickly and apply them effectively Hunger and drive: you’re comfortable working in ambiguous, fast ...

UI Engineer

Hiring Organisation
McCabe & Barton
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£85,000
detail typography, spacing, and design consistency. Experience with Azure DevOps, CI/CD pipelines, and Azure Monitor. Familiarity with LogicApps, Azure Web Apps, React, or additional front-end frameworks. Experience with automated testing frameworks. Skills & Competencies Ability to communicate complex technical concepts clearly to non-technical audiences. Excellent time management ...