1 to 25 of 244 C# Jobs in London

Full Stack Developer - React - Next.js

Hiring Organisation
Devonshire Hayes
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 45,000 - 55,000 Annual
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 8 Python REST APIs/Web APIs Microservices Architecture Messaging & Caching RabbitMQ Redis DevOps & Cloud Azure DevOps Git/Repos CI/CD Pipelines ...

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
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 8 Python REST APIs/Web APIs Microservices Architecture Messaging & Caching RabbitMQ Redis DevOps & Cloud Azure DevOps Git/Repos CI/CD Pipelines ...

Lead Developer - SC or DV Cleared (Azure / .NET / Microservices)

Hiring Organisation
Jobleads-UK
Location
City of Westminster, England, United Kingdom
integration with government platforms (e.g. payments, notifications, identity services) Contribute hands‐on to development where required Skills & Experience Required Core Engineering Strong experience with C#/.NET (Core, 6, 7, 8+) Deep knowledge of REST APIs, Web APIs, and distributed systems Experience building event‐driven microservices architectures Strong understanding ...

Solution Architect (Contract Role)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
engineering progressing into solution architecture, with hands‐on design of data-intensive systems, ideally in insurance, reinsurance, or financial services. Strong programming skills in C#/.NET or Python, solid SQL knowledge, and experience with modern UI frameworks such as React or Angular with TypeScript. Hands-on infrastructure-as-code ...

Full Stack Engineer (Contract Role)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
production systems end to end. Experience in insurance, reinsurance or wider financial services is a plus, but not essential. Backend: Strong programming skills in C#/.NET or Python, with solid API design and strong SQL. Frontend: Practical experience building modern user interfaces with React or Angular and TypeScript. Cloud ...

Full Stack Engineer (Contract Role)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
production systems end to end. Experience in insurance, reinsurance or wider financial services is a plus, but not essential.* **Backend:** Strong programming skills in C#/.NET or Python, with solid API design and strong SQL.* **Frontend:** Practical experience building modern user interfaces with React or Angular and TypeScript.* **Cloud ...

Solution Architect

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
designed data‐intensive systems you also helped build, ideally in insurance, reinsurance or wider financial services. Technical Stack: Current, practical programming skills, ideally in C#/.NET or Python, with strong SQL, working knowledge of modern UI frameworks such as React or Angular with TypeScript, and hands‐on experience with ...

Senior Software Engineer, Risk

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
within an agile team environment Skilled at operating within an agile development environment Experience with Azure Services Deep knowledge and expertise in .NET and C# Advanced knowledge of Microsoft SQL Server Skilled in designing and implementing CI/CD pipelines within Azure DevOps Preferred Knowledge/Experience: Experience ...

Lead .NET Developer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
term technical standards. Must Haves: Proven experience leading and mentoring engineering teams in a modern software environment Strong hands on background building .NET/C# and Angular web applications Deep understanding of modern architecture patterns (microservices, event driven systems, service oriented architecture) Cloud native development expertise with AWS services (Lambda ...

Software Developer

Hiring Organisation
Proactive Appointments
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
date, and following development best practice. Staying up to date with new technologies, including Azure, AI, and the Microsoft Power Platform. Experience Required: C#/.NET, ASP.NET and .NET Core. SQL Server. JavaScript, HTML and CSS. REST APIs. Microsoft Azure. Azure DevOps and Git. SharePoint Online. Power Automate (Microsoft Power ...

Application Support Engineer / Developer

Hiring Organisation
Leo Technology Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £65,000 per annum
priorities Excellent communication skills and the ability to work with both technical and non-technical stakeholders Desirable: Commercial experience with Java and/or C# Experience working with Microsoft Azure Knowledge of Docker, Kubernetes and Azure DevOps Experience using Git for source control Front-end development experience, ideally with React ...

Software Engineer / Developer (All Levels) - UK Wide

Hiring Organisation
describe.me
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £140,000 per annum
larger initiatives, mentor engineers, set engineering standards What You'll Bring Technical Expertise: Strong proficiency in one or more of: Python, Java, Kotlin, Go, C#/.NET, TypeScript/Node, Ruby, PHP, Scala, Rust Hands-on experience with modern frameworks (Spring, .NET, Django, FastAPI, Rails, Express/NestJS, Laravel, React ...

Senior Software Developer in Test - Senior Consultant

Hiring Organisation
Scale Factory
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Experience: Eligibility for SC clearance Significant experience in Agile environments (e.g., SCRUM, Kanban). Solid technical development background with strong coding skills in Java, C#, TypeScript, JavaScript, or similar Proven expertise in automation testing, with hands-on experience using tools like Playwright, Selenium, Cypress, or RestAssured Strong knowledge of integration ...

Senior Software Engineer (C++ network programming)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
skillNice to haveFamiliarity with large scale deployments: Kubernetes, Docker, TerraformFamiliarity with CI/CD pipelines and associated scriptingKnowledge in other programming languages like Java, C#, Ruby, R, Go, Node.js, and Perl is a plus.Knowledge of CMake is a plusExposure to AI to optimize development tasks is a plusBenefits ...

Principal Software Engineer, C#

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Responsibilities Provide technical leadership across our technology function, driving the design, delivery, and continuous improvement of enterprise applications and digital services. Define architecture, establish engineering standards, oversee delivery, and ensure solutions are scalable, secure, maintainable ...

C# Principal Software Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Role Purpose We are seeking a highly experienced Principal Software Engineer to provide technical leadership across our technology function, driving the design, delivery, and continuous improvement of enterprise applications and digital services. This is a ...

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
Azure cloud experience. Knowledge of containerisation and distributed geospatial processing. Experience with raster/vector tiling, remote sensing or 3D geospatial datasets. Exposure to C#/.NET environments. Guidant, Carbon60, Lorien & SRG - The Impellam Group Portfolio are acting as an Employment Business in relation to this vacancy. ...

Senior Tech Lead (Sitecore)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Skills & Experience Strong hands‐on experience delivering Sitecore (XM/XP) solutions, including Sitecore Helix principles and multi‐site implementations. Expertise in .NET/C#, ASP.NET, Web APIs, and modern engineering practices. Experience with Sitecore JSS and/or headless architectures (e.g., Sitecore Headless Services) and modern JavaScript frameworks (React ...

Applications Engineer

Hiring Organisation
Picture More
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £90,000 per annum
APIs and systems integration SQL Server, data flows, ETL, reporting or database development Power Platform, Power Apps, Power Automate, Power BI or Microsoft Fabric C#/.NET application development Good understanding of application architecture, troubleshooting, data movement and integration points. Experience working with stakeholders, users, vendors and technical teams. Comfortable ...

IT Development Team Lead (Full Stack)

Hiring Organisation
Euro Car Parks
Location
Central London, London, United Kingdom
Employment Type
Permanent
skills, accountabilities and development areas. Desirable Skills: 5+ years experience in working with the .NET framework, particularly with ASP.NET Core, React/React Native, C#, Web API Strong experience in working with Azure (preferably certified) including App Services, Azure Function, Service Bus Experience leading and mentoring small-to-medium hybrid ...

Software Engineer-MUST HAVE CURRENT DV CLEARANCE

Hiring Organisation
Reed
Location
London, South East, England, United Kingdom
Employment Type
Temporary
Salary
£597 per day
practices Required Skills & Experience We are interested in professionals with experience across some or all of the following: Development & Engineering Java, Python, JavaScript, C++, C# Software application development Automated testing frameworks Spec-driven software development DevOps & Automation Git, GitOps GitLab, Jenkins Terraform, Ansible, Chef, Puppet ArgoCD, Flux CI/ ...

Senior Technical Lead

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

Senior Full Stack Software Developer

Hiring Organisation
Corpay
Location
Central London, London, United Kingdom
Employment Type
Permanent
system. Qualifications and Experience Education: B.S. in Computer Science, Engineering, or equivalent experience. Experience: 8+ years of professional software engineering experience. Required Experience: C# and .NET development across web and/or desktop applications. JavaScript or TypeScript. SQL Server, relational database design, stored procedures, and T-SQL. HTTP APIs ...

DevOps Engineer - Dynamics 365

Hiring Organisation
Robert Walters
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £75,000 per annum
Service Bus, API Management, and Key Vault. Experience with SQL Server, REST APIs, and Infrastructure as Code (Terraform, ARM, or Bicep). Knowledge of C#, .NET, or JavaScript/TypeScript. Experience working in Agile environments and applying DevSecOps principles. Robert Walters Operations Limited is an employment business and employment agency ...

Senior Microsoft Dynamics Developer - Hybrid

Hiring Organisation
Celon Group Limited
Location
South East London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£65,000
management, and deployment processes Troubleshoot and resolve complex technical issues Required Experience 8+ years' experience working with Microsoft Dynamics 365 Strong development experience with C#, .NET, and JavaScript or TypeScript Proven experience building plugins, workflows, and integrations Experience working across the full delivery lifecycle of Dynamics solutions Hands-on experience ...