1 to 25 of 49 React Jobs in the City of London

Full Stack & Cloud Engineering

Hiring Organisation
Cloud Elemental
Location
City of London, London, United Kingdom
Participating in Agile ceremonies and code reviews Troubleshooting and resolving technical issues Contributing to architecture discussions Supporting production environments where required Typical technologies include: React TypeScript JavaScript C# .NET Node.js Python SQL Cloud Engineering & DevOps Work with experienced consultants to design, automate and manage cloud environments. You'll gain experience ...

Java + CloudNative

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£65000 - £70000/annum
seeking a highly skilled Specialist with 5 to 7 years of hands-on experience in Core Java, React, and cloud-native architecture to join our client's Investment Banking engineering team. In this role, you will design, build, and maintain high-throughput, low-latency applications tailored for risk management systems. ...

.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 ...

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 ...

Technical Lead

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
security considerations Technical skills & experience: The candidate should have strong commercial experience in modern software development. .NET/C# and/or Python React, ideally React 18+, Redux Toolkit, React Query HTML5, Material UI and SCSS Testing frameworks such as Jest and React Testing Library Working with and designing RESTful ...

Solution Engineer

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
facing consulting or solution engineering experience. Strong programming skills in Python and/or JavaScript . Experience with modern front-end frameworks such as React , Angular , or Vue . Knowledge of Git and modern development workflows. Experience with cloud platforms including AWS , Azure , or Google Cloud Platform (GCP) . Understanding ...

Site Reliability Engineer

Hiring Organisation
iXceed Solutions
Location
City of London, London, United Kingdom
troubleshooting and problem-solving skills ━━━━━━━━━━━━━━━━━━━━━━ 🔹 Nice to Have ⭐ Azure & Google Cloud Platform (GCP) ⭐ PostgreSQL, Neo4j, ClickHouse, Elasticsearch, or Redis ⭐ Prometheus & Grafana ⭐ FastAPI, TypeScript/React ⭐ Experience in Life Sciences or Biomedical domains ━━━━━━━━━━━━━━━━━━━━━━ 🔹 Technology Stack 💻 Python • Shell • Kubernetes • Helm • Docker • GitHub Actions • Harbor • PostgreSQL • Neo4j • ClickHouse • Elasticsearch • Redis • Prometheus • Grafana • Azure ...

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 ...

Kotlin/JVM Software Engineer

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
modern stack consisting of Kotlin/JVM for the back end interacting with other Java/JVM services internally, and a React based front end. We reach out to many APIs internally and externally to create and service our insurance policies and claims. We are in a period of expansion … technologies such as JavaScript, HTML, CSS, TypeScript, C#, SASS, Stylus, Stylus, Python, and LESS. Web frameworks – knowledge and experience working with different frameworks like React Native, AngularJS, Angular2, VueJS, SocketIO, Backbone, KnockoutJS, Svelte, and Bootstrap. Software testing tools – A good working knowledge in testing code using Mocha, Jest, Unit-tests ...

Ecommerce AI Engineer (Contract)

Hiring Organisation
Salt
Location
Westminster, London, City of Westminster, United Kingdom
Employment Type
Contract
Contract Rate
£250 - £275/day
would be beneficial: * Hospitality, travel or multi-property booking platforms * WooCommerce, Shopify or similar ecommerce technologies * HubSpot, Salesforce, Zoho or comparable CRM platforms * Django, React, Angular, AWS or other cloud and application-development technologies * WhatsApp Cloud API, Twilio or similar communication platforms What Success Looks Like Success in this position ...

Ecommerce AI Engineer

Hiring Organisation
Salt
Location
Westminster, London, City of Westminster, United Kingdom
Employment Type
Permanent
Salary
£45000 - £55000/annum
would be beneficial: * Hospitality, travel or multi-property booking platforms * WooCommerce, Shopify or similar ecommerce technologies * HubSpot, Salesforce, Zoho or comparable CRM platforms * Django, React, Angular, AWS or other cloud and application-development technologies * WhatsApp Cloud API, Twilio or similar communication platforms What Success Looks Like Success in this position ...

Principal Software Engineer - C#

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
.NET host), comfortable with WebSocket bridges, local service APIs, or IPC mechanisms to connect web UIs with native desktop applications. Sufficient front‐end literacy (React, TypeScript, Node) to make architectural decisions, review code, and collaborate effectively with dedicated front‐end teams. Demonstrated ability to leverage coding agents in spec‐driven ...

Principal Software Engineer - C#

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
custom .NET host); comfortable with WebSocket bridges, local service APIs, or IPC mechanisms to connect web UIs with native desktop applications.Sufficient front-end literacy (React, TypeScript, Node) to make architectural decisions, review code, and collaborate effectively with dedicated front-end teams.Demonstrated ability to leverage coding agents in spec-driven development ...

Development Lead (Manager)

Hiring Organisation
Oliver Wyman
Location
City of London, London, United Kingdom
full-stack development across a modern back-end stack (e.g. C#/.NET Core and/or Python ) and front end (e.g. Angular or React , JavaScript/TypeScript). Strong database and data-modelling skills (e.g. SQL Server/PostgreSQL; schema design; DBML or equivalent). Experience building and maintaining … project and client to client; the list below is representative rather than fixed. Back end: C#/.NET Core, Python Front end: Angular or React, JavaScript/TypeScript Data: SQL Server, PostgreSQL, DBML, NoSQL databases Cloud & DevOps: Azure, AWS, Docker, Azure DevOps, GitHub, CI/CD, PowerShell, YAML Ways ...

Full Stack Engineer (Front End focus) - Banking

Hiring Organisation
AMS CWS
Location
City of London, London, United Kingdom
Employment Type
Contract
knowledge-sharing initiatives. The skills you'll need: Full-stack software development experience, with strong expertise in front-end engineering. Strong commercial experience with ReactJS, TypeScript, JavaScript, HTML5 and CSS3, building scalable and responsive web applications. Experience with modern front-end frameworks and tooling, including Next.js and Tailwind CSS. Experience ...

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 ...

Front-end Software Engineer III

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
coding hygiene and system architecture Required qualifications, capabilities, and skills Formal training or certification on software engineering concepts and advanced applied experience Proficiency in React, JavaScript/TypeScript, including automated unit/integration testing Respect for clean coding and best practices Hands-on practical experience in system design, application development ...

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 ...

Founding AI Platform Engineer

Hiring Organisation
MBN Solutions
Location
City of London, London, United Kingdom
founding team — fast decisions, no bureaucracy What we're looking for: ✅ 5+ years building production software ✅ Strong full-stack chops (Python/FastAPI + React/TypeScript or equivalent) ✅ Solid SQL & data modelling instincts — comfortable in data-heavy B2B products ✅ Bonus: experience with agentic/LLM-powered products, tool ...

Graduate / Junior Developer, Python, JavaScript, PHP - London

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£35,000 - £50,000 per annum
Graduate/Junior Developer who have recently graduated from university and have a basic understanding of any of the following technologies: Python, JavaScript, PHP, React, React Native, Django, Postgres, Docker and Agile; which might have been acquired as part of your degree course or through a placement year in industry. ...

Senior React Developer

Hiring Organisation
E-Solutions
Location
City of London, London, United Kingdom
Description: React Developer (React, TypeScript & Low-Latency) Role Overview We are seeking a highly skilled UI Developer with strong expertise in building time-critical, high-availability, and high-performance applications. The ideal candidate will have hands-on experience across the full UI development lifecycle, including design, development, testing, and deployment. … Technical Skills & Expertise ✅ Expert-level proficiency in HTML, CSS, JavaScript, React, and TypeScript ✅ Strong understanding of WebSockets, Server-Sent Events (SSE), and REST APIs ✅ Solid experience with state management libraries (e.g., Redux) and reactive programming paradigms ✅ Strong understanding of Micro-Frontends and Single Page Applications (SPA) ✅ Hands-on experience with ...

Google AI FDE

Hiring Organisation
Tata Consultancy Services
Location
City of London, London, United Kingdom
augmented generation (RAG)-like architectures to power enterprise AI solutions. Experience implementing multi-agent systems using frameworks (e.g., LangGraph, CrewAI, ADK) and patterns (e.g., ReAct, self-reflection, hierarchical delegation). Knowledge of LLM-native metrics (e.g., tokens/sec, cost-per-request) and techniques for optimizing state management and granular ...

.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, C# 14 - Global Technology Brand - London (Tech stack: .NET Developer, .NET 10.0, ASP.NET, C# 14, WPF, React, Angular 21, Microservices, Azure, ASP.NET Core Web API, Entity Framework, Agile, Programmer, Full Stack Engineer, Architect, .NET Developer) Our clients fascinating story dates back to 1981; today they have fast become … development (.NET Core, C#) or winforms/WPF (C#) development. Our client will provide you with training into: .NET 10.0, WPF, MVVM, Prism, 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 Azure SQL. ...

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 ...