1 to 25 of 33 React Jobs in the City of London

Senior Engineer (Full-Stack)

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
experience as a Full Stack or Front/Backend Engineer in Typescript in a professional environment.Front-end skillsProficient in HTML5, CSS3, and TypescriptProficient in React, Redux, ReactQueryExperience with modern JavaScript frameworks - ReactKnowledge of version control systems (Git)Understanding of cross-browser compatibilityFamiliarity with RESTful APIs, GraphQL and WebsocketsExperience with ...

Engineer C# (Full Stack)

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
with emerging technologies and incorporate best practices into development.Experience/CompetencesEssentialStrong experience in full-stack development within enterprise environments.Proficiency in front-end technologies: TypeScript, React (or similar frameworks).Strong back-end experience with C# language.SOLID principle.Good understanding of RESTful APIs.Experience with cloud platforms (AWS preferred) and containerization (Docker/Kubernetes ...

SC Cleared Freelance Frontend Fullstack Developer

Hiring Organisation
Opus Recruitment Solutions
Location
City Of London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £650/day
Cleared freelancer needed with a frontend focus to build modern, scalable web applications, with some backend/API work. Tech & Skills JavaScript/TypeScript, React/Angular/Vue Node.js, REST/GraphQL APIs HTML, CSS, responsive & accessible design Testing (Jest/Cypress), CI/CD, Git Experience integrating APIs ...

Fullstack Developer

Hiring Organisation
Devonshire Hayes Recruitment Specialists Limited
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £55,000 per annum
business stakeholders. Collaborate within an Agile/Scrum development environment. Support production systems and troubleshoot issues when required. Technical Skills Required Front End Next.js React TypeScript Web Components AG Grid Real-time communication using WebSockets or SignalR Strong experience building real-time trading or financial applications Back End C# .NET … Options, Forwards or other financial products Jira, Confluence, Monday dot com integrations and administration experience Experience Required 2-3+ years' commercial experience with React/Next.js. Experience developing front-end trading or real-time financial applications. Exposure to Azure DevOps and Agile delivery environments. Degree in Computer Science, Software ...

Lead Software Engineer

Hiring Organisation
MARSH CORPORATE SERVICES LIMITED
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
strong ability to connect technical design to covenant outcomes. Experience with Python-based services (e.g., FastAPI) and modern web stacks (e.g., Next.js/React.js) in real-world delivery. Practical experience delivering GenAI/agentic solutions (prompt engineering, RAG, governance patterns) in production or controlled enterprise environments. Worked with data pipelines ...

Full Stack Developer

Hiring Organisation
Hays Technology
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £650/day £550-650
office Duration - Initially 6 months Rate - £550-£650/day Inside IR35 via Umbrella Skills and Experience Required TypeScript or Javascript Next.js or React AWS Terraform Experience providing feedback to engineering teams via code review Exposure to a wide range of languages, frameworks, and cloud technologies Core Competencies: Highly proactive ...

Lead Full Stack Ruby Developer

Hiring Organisation
G.R.E. Recruitment Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
Once a quarter onsite in Burgess Hill based office - £80,000 - £85,000 + benefits Tech Stack: Ruby on Rails, SQL, PostgreSQL, JavaScript, Turbolinks, ReactJS, NextJS, API's, AWS - Must have an understanding of the benefits and risks of adopting AI safely and effectively G.R.E. Recruitment is delighted to partner ...

Lead Full Stack Ruby Developer

Hiring Organisation
G.R.E. Recruitment Limited
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 85,000 Annual
Once a quarter onsite in Burgess Hill based office - £80,000 - £85,000 + benefits Tech Stack: Ruby on Rails, SQL, PostgreSQL, JavaScript, Turbolinks, ReactJS, NextJS, API's, AWS - Must have an understanding of the benefits and risks of adopting AI safely and effectively G click apply for full ...

Full-Stack C# Engineer: Architect Scalable Finance Apps

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
architects, and engineers to implement microservices, APIs, and cloud-based solutions in a fast-paced, security-minded environment. The role requires strong TypeScript/React frontend skills, solid C# back-end experience with SOLID principles, and a good grasp of RESTful APIs, CI/CD, #J-18808-Ljbffr ...

Senior Platform Engineer - AWS, Microservices & Frontend

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
software in a fast-paced, production-critical environment, collaborating with AWS and cross-functional partners. You will demonstrate strong TypeScript/JavaScript capabilities, frontend (React/Redux) and backend experience, along with microservices, cloud tooling, and modern SDLC practices to deliver scalable services in production. #J-18808-Ljbffr ...

Full Stack Engineer

Hiring Organisation
McGregor Boyall Associates Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
develop, test, and deploy scalable services using modern technologies, while gaining exposure to cutting-edge AWS architecture and engineering best practices. Key Skills: TypeScript React, Redux, React Query HTML5, CSS3, Tailwind REST APIs, GraphQL, WebSockets AWS (Lambda, Fargate, API Gateway, AppSync) Terraform, CI/CD, Containerisation SQL & NoSQL databases ...

Forward Deployed Engineer

Hiring Organisation
Albert Bow
Location
City of London, London, United Kingdom
projects from discovery through to production Influence product direction in a fast-moving, high-ownership environment Skills/Experience Strong commercial experience with TypeScript, React & Python Experience building AI-powered products using LLMs or AI APIs A proven track record in a high-growth start-up or scale-up Backgrounds ...

GIS Engineer - Inside IR35 - Insurance

Hiring Organisation
SRG
Location
City of London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £650 per day
GIS Engineer 6-Month Contract 650 Inside IR35 Hybrid - 1 Day per Week in Central London We're seeking an experienced GIS Engineer to join a high-performing technology team delivering innovative geospatial solutions within ...

Engineer C# (Full Stack)

Hiring Organisation
Jobleads-UK
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 ...

Senior Software Engineer

Hiring Organisation
Fruition Group
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
from architecture through deployment, across new and existing products. What You'll Do Design, build and ship features across the full stack (Fastify microservices, React/MUI, shared TypeScript packages in a pnpm monorepo) Design and evolve backend services for high-volume, distributed screening workloads Build event-driven pipelines … reliability and correctness matter as much as performance. What We're Looking For Essential 5+ years professional software engineering experience Strong TypeScript, Node.js and React experience Experience designing, building and operating production backend services Strong grasp of REST APIs, auth/authorisation and data modelling (MongoDB or similar) Experience with ...

.NET Developer

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £50,000 per annum
.NET Developer, .NET 10.0, C# 14, Agile - London (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer) We are pleased to announce the arrival … have commercial experience with: .NET, .NET Core, C#, Azure SQL and Agile. Full training will be provided into: .NET 10.0, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, Agile, Azure SQL, Node.js, Elasticsearch and MongoDB. If you are dedicated to the youthful optimism of problem solving through ...

Senior Technical Lead

Hiring Organisation
InstaResource Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
Content Hub, Send or other composable DXP products. Understanding of Sitecore licensing, deployment architecture and cloud hosting (Azure/AWS). Familiarity with Next.js, React, Vercel and Netlify. AI and Modern Development Candidates should demonstrate experience integrating AI into professional software development, including: AI coding assistants such as GitHub Copilot … tokens and component specifications. Experience with prompt engineering or AI automation pipelines is highly desirable. Core Technical Skills: .NET/C# JavaScript/TypeScript React or Next.js RESTful APIs GraphQL CI/CD pipelines (Azure DevOps or GitHub Actions) Performance optimisation WCAG 2.1 accessibility standards SEO best practices Agile/ ...

Full Stack Engineer

Hiring Organisation
Aspect
Location
City of London, London, United Kingdom
automation to reimagine how we deliver customer service, field operations, and internal workflows. We are now looking for a talented Full Stack Engineer with React expertise to help us build the products and platforms that will run at the core of our business. The Role As a Full Stack Engineer … will design and ship polished, production-grade web applications end to end. You will spend most of your time in React building fast, accessible, and beautiful interfaces, while also owning the APIs, data models, and services behind them. Your work will power everything from customer-facing booking and service tools ...

.NET Developer

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £100,000 per annum
.NET Developer - Fastest Growing Social Media Firm - London (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Azure DevOps, Agile, Blazor, JavaScript, React, Multithreading, RESTful, ML.NET, Azure AI, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client is on a quest to transform how people discover, view and share … object orientated (OO) development principles. Our client can provide you with industry recognized training in: .NET 10.0, C# 14, Azure DevOps, Agile, Blazor, JavaScript, React, Multithreading, RESTful, ML.NET, Azure AI, Bootstrap and MongoDB. Our client has a flat organization, which means that they believe great ideas can come from anywhere ...

.NET Developer

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £100,000 per annum
.NET Developer, .NET 10.0, C# 14, Azure, JavaScript, Agile - London (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer)Be the first of your friends to declare, "I love where … with: .NET, .NET Core, C# and Azure SQL. Our client will provide you with industry recognised training into: .NET 10.0, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, Agile, Azure SQL, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and MongoDB. Their benefits include the following: Bonus ...

.NET Developer

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £90,000 per annum
.NET Developer (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Azure DevOps, Agile, Blazor, JavaScript, React, Multithreading, RESTful, ML.NET, Azure AI, Programmer, Full Stack Engineer, Architect, .NET Developer)In just over 5 years our client has established themselves as the world's leading internet subscription service for enjoying … have a sound understanding of object orientated (OO) development and a skill that that includes: .NET 10.0, C# 14, Azure DevOps, Agile, Blazor, JavaScript, React, Multithreading, RESTful, ML.NET, Azure AI and MongoDB. This is an excellent opportunity for a .NET Developer to working within a challenging supportive environment. Top performers ...

.NET Developer

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£95,000 - £115,000 per annum
.NET Developer - London (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer) After 15 years' experience in the fashion industry, our client has a mission to change the way people … experience of: .NET, .NET Core, C# and Azure SQL. There are opportunities for training into technologies such as: .NET 10.0, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, Agile, Azure SQL, Solid, DRY, LINQ and MongoDB. Their benefits include the following: Bonus (10-15%). Share options. ...

Full Stack Engineer (Python/React.js) -Vietnam

Hiring Organisation
Robert Half Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Full Stack Engineer (Python/React.js) -Vietnam This role is based in Vietnam and we are looking for local candidates based in Ho Chi Minh City. This is an outstanding opening to become the head of development or future CTO. This is a Perm role In partnership with Robert Half … decisions, and play a key role as the business continues to scale. The Opportunity We're looking for a Full Stack Engineer (Python/React.js) with deep React and Next.js expertise and a passion for creating exceptional user experiences. You'll work closely with Product and Design to transform high ...

Full Stack Engineer

Hiring Organisation
ARM
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550/day Inside IR35
technical direction. Key Responsibilities Deliver end-to-end solutions from UI through to backend services and deployment. Develop modern frontend applications using Angular, React or similar. Build scalable, cloud-native solutions using AWS, Docker and Kubernetes (EKS). Contribute to architecture, technical design and engineering best practice. Mentor engineers … collaborate with technical and business stakeholders. Essential Skills Strong full stack engineering experience with modern frontend frameworks (Angular, React or similar). Experience delivering end-to-end solutions across frontend, backend and deployment. Hands-on experience with AWS, Docker and Kubernetes (EKS). Experience building cloud-native applications and working ...

Technical Lead

Hiring Organisation
Invitise Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Shipping production software with 3 to 5 of those in a tech lead or staff engineer role - Python and TypeScript/Node, with solid React/Next.js and NestJS/FastAPI experience - PostgreSQL, including schema design, query performance, ETL/ELT, and analytical workloads at scale - LLM/AI features … Please apply below. Tech Lead, Technical Lead, Staff Engineer, Principal Engineer, Private Credit, Private Markets, Capital Markets, AI Platform, Analytics Platform, Python, TypeScript, Node.js, React, Next.js, NestJS, FastAPI, PostgreSQL, pgvector, LangChain, LangGraph, LiteLLM, AWS, LLM, Fintech, Greenfield, Remote, Hybrid/Remote, Contract ...