1 to 25 of 275 C# Jobs in London

improve development processes Work with databases to design and optimize queries Ensure application security, performance, and scalability Required Skills & Qualifications Strong experience with C# and .NET Framework/.NET Core Hands-on experience with ASP.NET MVC/Web API Familiarity with Entity Framework/LINQ Experience with SQL Server ...

Required Experience Proven experience as a Senior Software Engineer working on scalable, production-grade systems Strong full-stack development experience (TypeScript/React and C#/.NET or similar) Deep understanding of software design principles, patterns, and architecture Experience building and evolving APIs, microservices, and distributed systems Hands-on 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. Strong knowledge of integration testing and automation frameworks . Experience leading small teams of testers and contributing to the overall ...

Experience designing and consuming RESTful APIs/REST API services Proficiency in at least two of the following programming languages: Python Java JavaScript .NET (C#) Experience working in Agile/Scrum environments Excellent problem-solving skills and attention to detail Desirable Skills Experience with cloud platforms (Oracle Cloud, AWS, Azure ...

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 APIs and microservices ...

stack required ideally: 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/ ...

experience with Azure Integration Services (APIM, Logic Apps, Azure Functions, Service Bus, Event Grid) Experience delivering containerised workloads in AKS Strong programming capability in C#, .NET, JavaScript or TypeScript Solid understanding of REST APIs, OAuth2 and modern API security practices Experience with SQL and data integration technologies Familiarity with ...

across the business Requirements Proven experience as a full-stack developer, ideally with experience in a technical lead role Strong proficiency in JavaScript, .NET (C#), and modern frontend frameworks Solid experience with SQL databases and API design and integration Demonstrated leadership ability with strong communication and organisational skills A proactive ...

Full Stack Developer to build scalable, AI-powered applications on Microsoft Azure. The Role Develop modern UIs using React, TypeScript Build APIs and microservices (C#/.NET or Python) Integrate AI capabilities into web applications Work across Azure services (Service Bus, Event Grid, SQL, Cosmos DB) Deliver secure, scalable, cloud ...

Full Stack Developer to build scalable, AI-powered applications on Microsoft Azure. The Role Develop modern UIs using React, TypeScript Build APIs and microservices (C#/.NET or Python) Integrate AI capabilities into web applications Work across Azure services (Service Bus, Event Grid, SQL, Cosmos DB) Deliver secure, scalable, cloud ...

junior engineers Driving quality through testing, reviews, and best practices What we’re looking for: 5+ years’ software development experience Strong skills in Python, C#/.NET, TypeScript/Angular, and SQL (MySQL) Experience with REST APIs and AWS (EC2, Lambda, S3, RDS) Solid problem-solving and debugging skills Bonus ...

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 ...

architectures Desirable: Experience supporting financial systems (e.g. accounting or policy systems) Azure DBA experience Knowledge of Azure Analysis Services or SSAS Experience with C#, ASP.NET MVC, or web application development Familiarity with AI tools such as GitHub Copilot Exposure to VBA or SharePoint Online Skills & Attributes Strong analytical and problem ...

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 ...

modern data engineering techniques (e.g. distributed systems, data streaming, event-based architectures etc) Software development experience with one or more languages (e.g. Python, Java, C# ) Solid software engineering and DevOps skills as well as the complete SDLC applied to data, e.g. design patterns, automation, testing, contract definition, clean code ...

multi-currency processing. What you’ll be doing: Architecting and building cloud-first solutions in Azure Developing across the stack: ASP.NET Core/C#, Angular (TypeScript), SQL Server Owning quality through TDD/BDD, CI/CD (Azure DevOps), and production-grade observability Leading technical design, mentoring engineers, and influencing ...

services (buy‐side preferred, sell‐side also welcome). Solid background in treasury, collateral, middle‐office, or financial operations technology. Strong programming skills in C# + Python Front‐end experience with Vue.js , React , or Angular . Experience with databases such as SQL Server, Databricks, or Azure SQL. Strong understanding ...

ability to work with evolving requirements. Lead a team of experienced Software Engineers Nice to Have Backend experience in Go and/or C# Experience with microservices architecture. Familiarity with infrastructure as code (e.g., Terraform, CloudFormation). Experience with CI/CD pipelines and DevOps principles. Experience with authentication/ ...

global financial markets. The Technical Stack You will be working within a modern, engineering-first culture. The core stack includes: The Engine: Expert-level C# and .NET Core mastery. Architecture: Deep understanding of SOA (Service Oriented Architecture) and complex Object-Oriented design patterns. System Dynamics: Specialized knowledge of concurrency, asynchrony ...

required, on implementation, quality and operability. Our Contract Assignments are Inside IR 35, hybrid working. Initially 6-9 months About the role: Experience with C#/.NET, other additional languages highly desirable ie Java, Python React/TypeScript RESTful API design Apache Kafka PostgreSQL Git/GitHub workflows Automated testing ...

/Online. Proven SPFx development skills. Proficiency in TypeScript, JavaScript, React, HTML5, CSS3. Strong REST API and Microsoft Graph integration experience. Solid C#/.NET framework experience. Deep knowledge of SharePoint onprem administration, performance tuning, patching and troubleshooting. Experience with BCS and creating External Content Types. Strong SQL Server skills. ...

Full Stack Developer to build scalable, AI-powered applications on Microsoft Azure. The Role Develop modern UIs using React, TypeScript Build APIs and microservices (C#/.NET or Python) Integrate AI capabilities into web applications Work across Azure services (Service Bus, Event Grid, SQL, Cosmos DB) Deliver secure, scalable, cloud ...

defencefinancialservicesandtransport.WithteamsthatoperategloballyfromofficesacrosstheUK,Ireland,theUS,Nordics,andNetherlands. JobDescription WhyconsiderjoiningtheDigital&Datacommunity Growaflexibleanduniquecareerwithinatrust-basedenvironmentthatvaluesexcellence,innovation,andcuriosity.Youhavetheoptiontoprogresswithusonatechnicalcareertrack.NoneedtogoontothePartnercareertrackifthisdoesntalignwithwhatyouwanttodo. Workonabroadvarietyofprojectsandtechstacksforclientsacrosssevensectors-noprojectiseverthesame Techstackrequiredideally: Whileweadvocateforusingtherighttechfortherighttask,youcanexpecttoworkwiththefollowingtechnologiestoensurescalable,high-performanceapplications: ProgrammingLanguages:JavaScript/TypeScript,Java,C# Frameworks:Vue/Angular/React/Node/Next,Spring/SpringBoot,.NET/ASP.NET Cloudplatforms:AWS,GCP,Azure CI/CD:Jenkins,GitHubActions ...

SMEs. Run usability testing , gather real‐world feedback, and iterate with purpose. Champion accessibility and consistency across platforms (WCAG). Integrate with backend services (C#, Azure) and contribute to API‐driven development—ideal if you want to broaden your backend exposure. Maintain and evolve design systems and component libraries ...

practices Skills & Experience Strong experience with CMS platforms, particularly Umbraco Solid understanding of front-end development, with some back-end knowledge Experience with JavaScript, C#, and .NET technologies Familiarity with ASP.NET Core MVC, Web API, and CMS-based solutions Strong troubleshooting and debugging skills Good eye for design and experience ...