1 to 25 of 114 React Jobs in the City of London

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 ...

Dotnet Developer

Hiring Organisation
Information Tech Consultants
Location
City of London, London, United Kingdom
analytical skills Preferred Skills (Good to Have) Experience with Azure/cloud services Knowledge of Docker/Kubernetes Familiarity with front-end technologies (Angular, React, or JavaScript) Understanding of CI/CD pipelines Experience with Agile/Scrum methodologies Education & Experience Bachelor’s degree in Computer Science, IT, or related ...

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 ...

.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 ...

GenAI Full Stack Engineer - Consultant / Senior Consultant

Hiring Organisation
83zero Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£60,000
experience: Backend Development: Experience in building microservices using either Python with FastAPI, or TypeScript with Express or equivalent Frontend Development: Experience in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite. GenAI Frameworks: Familiarity with tools like LangChain, LangGraph, CrewAI, or Vercel AI (in Python or JavaScript ...

Lead GenAI Full Stack Engineer / Managing Consultant

Hiring Organisation
83zero Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£85,000
experience: Backend Development: Experience in building microservices using either Python with FastAPI, or TypeScript with Express or equivalent Frontend Development: Experience in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite. GenAI Frameworks: Familiarity with tools like LangChain, LangGraph, CrewAI, or Vercel AI (in Python or JavaScript ...

Senior Software Engineer

Hiring Organisation
GlobalLogic
Location
City of London, London, United Kingdom
Inside IR 35, hybrid working. Initially 6-9 months About the role: Experience with C#/.NET Additional languages highly desirable ie Java, Python React/TypeScript RESTful API design Apache Kafka PostgreSQL Git/GitHub workflows Experience with Kubernetes deployments; able to build CI/CD pipelines About ...

Senior Full Stack Software Engineer

Hiring Organisation
Pavilion Recruitment Solutions
Location
City Of London, England, United Kingdom
modelling AI-assisted development tools and workflows Contributing to architectural decisions Background for the successful candidate Strong experience building full-stack applications (TypeScript/React and C#/.NET or similar) A passion for building new products and working in fast-moving, evolving environments Experience with serverless and cloud platforms ...

Senior Fullstack Developer (Java+React)

Hiring Organisation
Altimetrik
Location
City of London, London, United Kingdom
FullStack Developer with both backend and frontend expertise. The expected skill distribution is approximately 60% backend (Java/microservices) and 40% frontend (React), with flexibility depending on experience. Requirements : Java, Spring Boot, Microservices, Node.js, TypeScript, React. Location: London (hybrid) 🔥 We build real AI products 🤓 We learn fast and experiment ...

Application Software Engineer – JavaScript

Hiring Organisation
RedTech Recruitment
Location
City of London, London, United Kingdom
/HTML5/Less CSS/Computer Science/Web Development/Web Software Engineer/PHP Astrophysics/Software Engineering/JavaScript/React.js/AngularJS/Vue.js/Node.js/ExpressJS/Web UI/Front-end/full-stack/back-end/Developer ********************************************************************************* RedTech Recruitment ...

Software Engineer

Hiring Organisation
Understanding Recruitment
Location
City of London, London, United Kingdom
real-world use, ensuring solutions deliver meaningful impact. Requirements: Strong programming skills in either: Backend: Python, C++, Java, Rust OR frontend: JavaScript/TypeScript (React, Angular, etc.) Strong communication skills and ability to work directly with users Willingness to travel Right to work in the UK Willingness to undergo ...

Quantitative Developer - Energy - London

Hiring Organisation
Options Group
Location
City of London, London, United Kingdom
skills and advanced proficiency in Python. Strong understanding of probability theory and derivative option pricing. Experience with front-end frameworks such as Angular or React, and understanding of database management, including SQL or NoSQL systems. Experience with Continuous Integration/Continuous Deployment (CI/CD) practices and cloud computing platforms. ...

Senior Python Developer

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £540 per day
back-end development of applications and APIs interacting with the Azure Databricks platform. Develop user interfaces using modern front-end frameworks (e.g., React, Angular, Vue.js) and ensure a seamless user experience. Develop robust and efficient back-end services and APIs using Python. Python Development: Develop and maintain Python code ...

SharePoint Engineer

Hiring Organisation
McCabe & Barton
Location
City of London, London, United Kingdom
Microsoft 365 security/compliance: Purview, sensitivity labels, retention, DLP, information protection. Branding/customization: JSON formatting, themes, SPFx development (JavaScript/TypeScript, React). Experience or understanding of API based integrations and automations Copilot or AI tool knowledge or awareness. Excellent problem-solving and troubleshooting abilities. Strong collaboration ...

Sharepoint Developer & Administrator

Hiring Organisation
DGH Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
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 ...

Deployed Software Engineer

Hiring Organisation
Durlston Partners
Location
City of London, London, United Kingdom
related technical subject Strong programming skills in server-side languages (C++, Java, Rust, Python) or front-end (TypeScript/JavaScript, Angular/React) Enthusiasm for working across a diverse, fast-moving tech stack Strong customer-facing communication skills Willingness to travel and work on-site with customers Existing right ...

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 ...

Product Engineer -TWE44721

Hiring Organisation
twentyAI
Location
City of London, London, United Kingdom
opportunity to join a driven team where your work matters and your input is valued. Key Skills: Backend development (Python, Flask, FastAPI) Frontend development (React, JavaScript, TypeScript) Cloud and infrastructure experience (Terraform, GCP, AWS) Strong problem-solving skills and a pragmatic approach to building solutions Initiative and ownership of projects ...

Principal Engineer - Comms Surveillance

Hiring Organisation
Marlin Selection
Location
City of London, London, United Kingdom
Employment Type
Permanent
Understanding of financial markets or trading systems. Knowledge of FCA Market Abuse Regulation. Experience in performance optimisation and profiling. Familiarity with modern UI frameworks (React, Typescript). Exposure to containerisation and orchestration tools. Understanding of architectural frameworks and best practices. Knowledge of AWS or other cloud platforms. ...

Principal Engineer

Hiring Organisation
Arrive
Location
City Of London, England, United Kingdom
enjoys solving complex problems and helping teams succeed. You likely bring: Strong development experience in PHP Experience with related technologies such as TypeScript, React, JavaScript, or Python Hands-on experience working with AWS and Infrastructure as Code (Terraform, CDK, or CloudFormation) Deep understanding of MySQL and relational database performance optimisation ...

Software Engineer

Hiring Organisation
trg.recruitment
Location
City of London, London, United Kingdom
.NET/C# Fintech or Payments background required. Solid understanding of REST APIs, microservices, and cloud-based architectures Experience working with frontend programming languages (React or Angular) Ability to pick up context quickly and contribute from day one as a contractor. Interested? Please apply or email cnisbett@trg-uk.com ...

Senior Full Stack Engineer

Hiring Organisation
Access Computer Consulting
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £440/day
scale systems end-to-end, not those with superficial exposure or purely design-focused experience. Candidates must have strong experience of Java Full Stack, React, Kubernetes & Docker. Experience in building responsive, component based user interfaces using modern front end frameworks. Hands on expertise in API design and development (REST/ ...

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 ...

Sharepoint Engineer

Hiring Organisation
DGH Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£95,000
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 ...