1 to 25 of 274 C# Jobs in London

Experience Essential Technical Skills Extensive experience leading and mentoring high-performing software engineering teams. Strong hands-on expertise with the Microsoft .NET ecosystem: C#, ASP.NET MVC, Entity Framework, Visual Studio. Solid understanding of web technologies such as JavaScript, React, Angular, HTML. Strong grounding in software engineering principles, including SOLID, design ...

TypeScript React.js (preferred), Angular, or Vue.js Responsive design (Bootstrap, Tailwind), state management (Redux, Context API) Front-end testing (Jest, React Testing Library, Cypress) Backend C#, ASP.NET Core/.NET 6+ RESTful and GraphQL APIs Entity Framework Core, LINQ Authentication & authorisation (OAuth2, JWT, Azure AD) Secure coding and API versioning Data ...

Senior C# Developer/Engineer (C# .Net Core) London/WFH to £85k Are you a skilled C# Developer looking to progress your career in a senior, hands-on role? You could be at a successful and scaling Retail FX Brokerage working on Greenfield systems. As a Senior C# Developer … designing and developing high quality, maintainable, and reliable code for a real-time, low latency trading systems built mostly in C# and React deployed to Azure. You'll focus on C# .Net backend development within an AWS environment, but also with exposure across the full technology stack in a modern ...

right task, you can expect to work with the following technologies to ensure scalable, high-performance applications: Programming Languages: JavaScript/TypeScript, Java, C# Frameworks: Vue/Angular/React/Node/Next, Spring/Spring Boot, .NET/ASP.NET Cloud platforms: AWS, GCP, Azure CI/CD: Jenkins ...

client led Solid experience in UI development for business-critical applications in Angular (8 and above), Java Script, Typescript, HTML/CSS, Java, C# Exposure to AWS services Personal traits you should have: Excellent attention to detail and an ability to think laterally to solve business problems. Ability ...

C# Developer - C#/Sql server/Fixed income The Front office (Fixed Income) software development team requires an agile and versatile specialist and team player with mid level expertise in .Net/C# software. The role requires an experienced individual who is comfortable to work in close partnership with … variety of front office stakeholders, globally. Role details Title: Software Developer (software engineer) Technical stack C#.NET. Wider stack .Net, .Net Core, C#, SQL Server Permanent role, salary £60-75,000 Location: London City and home working hybrid Focus: Front office Fixed Income Requirements: Good experience with C#/Sql server ...

C# Developer - C#/Sql server/Fixed income The Front office (Fixed Income) software development team requires an agile and versatile specialist and team player with mid level expertise in .Net/C# software. The role requires an experienced individual who is comfortable to work in close partnership with … variety of front office stakeholders, globally. Role details Title: Software Developer (software engineer) Technical stack C#.NET. Wider stack .Net, .Net Core, C#, SQL Server Permanent role, salary £60-75,000 Location: London City and home working hybrid Focus: Front office Fixed Income Requirements: Good experience with C#/Sql server ...

databases (e.g., MongoDB) or SQL (e.g., Postgres) Understanding of web standards, accessibility and development best practice Experience with Apache NiFi Bonus Skills Microservices in C# Integrating LLMs (e.g., LangChain, Vercel AI) Experience using the GOV.UK Design System and Nunjucks What You'll Love You'll be part of a culture ...

more reliable development through improved observability and testing strategies. What you'll bring: 7+ years of professional software development experience with .NET/C#, including 3+ years in a technical leadership role. Proven track record architecting and delivering Windows desktop applications using WPF, including custom controls, UI animations, and advanced ...

contract Fullstack Data reporting engineer and Python software developer. Fullstack Data reporting engineer (Python/.Net) - Contract: Required Skillset: 5+ years Software engineering experience C# Full Stack .NET development SQL Server & SQL Server Reporting Services Python for data engineering and Power BI Strong SQL knowledge Git/GitHub React/ ...

contract Fullstack Data reporting engineer and Python software developer. Fullstack Data reporting engineer (Python/.Net) - Contract: Required Skillset: 5+ years Software engineering experience C# Full Stack .NET development SQL Server & SQL Server Reporting Services Python for data engineering and Power BI Strong SQL knowledge Git/GitHub React/ ...

C#, .NET, .NET Core, SQL Server, T-SQL, Entity, Azure, App Services, Azure Service Bus, Event-driven architecture, API's, CI/CD, DevOps. We have 2 great permanent job opportunities to join our client in early 2026. A degree in computing, software engineering or computer science would be ideal ...

commitments What we're looking for: 5+ years' experience as a software engineer in enterprise or regulated environments Strong commercial experience with Java (Spring); C# experience is a plus Solid background building RESTful services and APIs Front-end experience with Angular Strong understanding of secure coding practices (OAuth, OpenID Connect ...

Microsoft Developer Strong Academic Background with Demonstrable Achievements Proven ability to excel in time-constrained, algorithmic problem-solving Technical Expertise: Advanced Proficiency in: C# and .NET Framework Microsoft Azure Cloud Platform SQL and SQL Server Complex Data-Driven Software Development Strong Algorithm and Data Structure Knowledge Preferred Background: Experience ...

Code tools NoSQL databases (especially MongoDB) or SQL (e.g., Postgres) Understanding of web standards, accessibility and development best practice Bonus Skills Building microservices in C# or Java Integrating LLMs (e.g., LangChain, Vercel AI) Using the GOV.UK Design System and Nunjucks What You'll Love You'll join a community that ...

pair programming, peer reviews, and continuous improvement practices. Contribute to good engineering culture through documentation, clean code, and technical transparency. Required Technical Skills C# Full Stack .NET developer with strong experience in: SQL Server SQL Server Reporting Services (SSRS) ASP.NET web framework Team Foundation Server (TFS) Expertise in reading, interpreting ...

pair programming, peer reviews, and continuous improvement practices. Contribute to good engineering culture through documentation, clean code, and technical transparency. Required Technical Skills C# Full Stack .NET developer with strong experience in: SQL Server SQL Server Reporting Services (SSRS) ASP.NET web framework Team Foundation Server (TFS) Expertise in reading, interpreting ...

other IaC tools NoSQL (ideally MongoDB) or relational databases (e.g., Postgres) Apache NiFi Web standards, accessibility and development best practice Bonus Experience Microservices in C#/.NET Integrating LLMs with tools like LangChain or Vercel AI Additional Information You must be fully flexible for client assignments, which may involve short ...

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 ...

engineering, with a focus on large-scale, complex systems. Polyglot engineer comfortable working across multiple languages and frameworks (weve used Python, Java, Kotlin, Node.js, C#, JavaScript, Express, React and Next.js to name a few). Passion for learning new technologies and helping others do the same. Proven track record ...

technologies and frameworks like React, Angular, Vue, Advanced JavaScript, HTML, CSS, SASS, LESS, Webpack Well versed with technologies and frameworks like JAVA/C#, Node, Python, Spring, AWS technologies like Lambda, ECS, S3, EMR, DynamoDB, Cognito, IOT, Step Functions, EC2, API Gateways Clear understanding of developing UI as well ...

Discovery and integration of new technologies Help to embed a culture of engineering excellence and continuous improvement Required skills: +5 years experience working in C#/.NET Experience developing front and middle office systems Strong SQL experience Experience developing cloud native solutions in Azure or AWS Experience with event-based ...

track record leading QA/test automation teams in fast-paced environments Expertise building scalable, maintainable frameworks from scratch using JavaScript/TypeScript, Java, C#, or Python Strong command of OOP principles, SOLID, and clean code practices Experience with BDD/ATDD using Cucumber or SpecFlow Knowledge of web, mobile ...

leadership in QA/testing roles, with experience guiding teams and managing delivery in Agile environments (SCRUM, Kanban). Strong programming skills in Java, C#, JavaScript/TypeScript, or similar. Deep expertise in test automation frameworks such as Selenium, Playwright, Cypress, or RestAssured. Experience with integration testing, test strategy ...

/CD, automation, observability, and DevOps practices, with experience driving adoption of new tools, frameworks, or processes. Technical Skills & Tools Languages & Frameworks: C#/.NET (Framework & Core), React Platforms & Infrastructure: Azure, AKS, Docker, Windows Server (on-prem), SQL Server, MongoDB IAM & App Gateways: Okta, APIM, Apigee Monitoring & Observability: Dynatrace, Application ...