1 to 25 of 256 Permanent C# Jobs in London

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 ...

Senior Software Engineer/Developer (C# .Net) London onsite to £150k Join a global hedge fund specialising in sports trading as a Senior Software Engineer, working on high-performance, real-time trading systems. You'll own greenfield projects, partner directly with quants and strategy teams and build low-latency backend … components and APIs with C# click apply for full job details ...

within a Microsoft Azure environment essential. Strong knowledge of Azure services, monitoring, and incident response. Strong working background within a Microsoft tech stack including C# .net. Background in automation and performance optimisation. Excellent communication, problem-solving, and cross-team collaboration skills. Ability to work under pressure and manage multiple priorities. ...

implement preventive measures. Approve production releases, ensuring testing adequacy and adherence to change-management processes. Development & Tooling Take full ownership of our internal C# dashboard tool used to monitor and administer the product suite. Extend and enhance this tool as needed to support evolving operational requirements. Ensure it provides deep … implement preventive measures. Approve production releases, ensuring testing adequacy and adherence to change-management processes. Development & Tooling Take full ownership of our internal C# dashboard tool used to monitor and administer the product suite. Extend and enhance this tool as needed to support evolving operational requirements. Ensure it provides deep ...

SeniorFullStackEngineerTypescript,C#,AWS,IAM,Security OutstandingopportunitytojointhisglobalB2BSaaSleaderasaSeniorFullStackEngineerwithsomesecurityandIAMexposurerequiredtodevelopAPIstoconnecttheirIAMsolutiontotheircoreapplications.ThispermanentroleoffersthechancetoshapehowfullstackapplicationsembraceZeroTrustauthenticationandauthorizationservicesinacutting-edge,AI-drivenenvironment. AbouttheRole: Buildfull-stackAPIsandintegrationsinTypeScript,C#,AWSIAM Deliversecurelogin,SSO,MFA,RBAC/ABAC,andtenantisolationatscale,leveragingAWSservices(Lambda,IAM,CloudFront,APIGateway,CDK) CollaborateacrossProduct,Security,andEngineeringteams,embedidentityintonewfeatures,andupholdengineeringexcellencethroughCI/CD,testing,andincidentresponse Requiredexperience: Strongfull-stackdevelopmentskills(TypeScript,C#,AWS) Anin-depthsecuritymindsetwithanunderstandingofZeroTrust&OAuth2 ProvenexperiencewithOIDC-compliantIDPs(Auth0,Okta,Cognito ...

will join a extremely talented development team and you will be exposed to creating and maintaining our client's own applications based around a C#/.NET/SQL Server/ASP.NET universe click apply for full job details ...

will work closely with other developers, UX/UI designers and stakeholders to ensure that our products meet the highest standards. Your expertise in C#, .NET, React and Azure will be crucial in driving our technology initiatives forward. The Senior Developer is a key role within BDO IT's Solutions … Proven hands-on track record of successfully building and delivering digital products (web apps and services) to market using agile methodologies. Strong proficiency in C#, .NET, React and Azure. Other development skillsets: JavaScript, HTML/CSS, Azure PaaS (Azure Functions, Azure Logic Apps, Cosmos DB, Azure App Service, Azure Service ...

Infrastructure Engineers and Analysts Experienced in the following: Infrastructure Development and Automation: Building use cases and creating infrastructure applications using programming languages such as C#, C++, and Python to process data locally Containerization and Orchestration: Using tools like Docker and Kubernetes to package and manage applications for scalable and efficient ...

.NET Developer, C# 14 - Financial Consultancy - London (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, .NET MAUI, ML.NET, Azure AI, GitHub Copilot, Docker, Kubernetes, .NET Aspire, CI/CD, HTML Living Standard, CSS Living Standard, Programmer, Full Stack Engineer, Architect, .NET Developer) Established in the early 1970s … Oracle, SAP, etc), they have evolved into a modern consulting firm. We are seeking 4 .NET Developer to work on complex Greenfield .NET/C# software development projects within the banking arena. You will be given full project life cycle exposure and the opportunity to technically lead teams ...

.NET Developer, .NET 10.0, C# 14 - Computer Gaming Company - London (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Azure, Angular 21, Vue.js, TypeScript, Multithreading, RESTful, ASP.NET Core Web API, EF Core 10.0, Programmer, Full Stack Engineer, Architect, .NET Developer) Having sold over 100 million games consoles and over … opportunity to work on the full project life cycle. .NET Developer applicants should have a skill set that encompasses: .NET, .NET Core, C# and Azure SQL. Our client can provide with exposure to: .NET 10.0, C# 14, Azure, Angular 21, Vue.js, TypeScript, Multithreading, RESTful, ASP.NET Core Web API, EF Core ...

.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 … expand their award winning .NET software development team. We are seeking .NET Developer candidates with experience of either web application 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 ...

.NET Developer - Global Phenomenon - London (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, .NET Aspire, CI/CD, Azure DevOps, EF Core 10.0, Agile, HTML Living Standard, CSS Living Standard, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client has created a global phenomenon, connecting people online … operate, and more. We are seeking .NET Developer with a strong grasp of object orientated development principles and sound knowledge of: .NET, .NET Core, C# and Azure SQL. You will receive industry recognized training in all aspects of: .NET 10.0, C# 14, .NET Aspire, CI/CD, Azure DevOps ...

.NET Developer - World Class Entertainment Company - 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) Our client has been producing unparalleled entertainment experiences for over 50 years. Today their … business comprises of: film studios, television stations, theme parks, media networks and retail outlets. They are about to embark upon several joint .NET/C# software development projects with Microsoft that will take the IT industry by storm! We are seeking several .NET Developer with full project life cycle experience ...

.NET Developer - Social Messaging Platform - London (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Azure SQL, .NET MAUI, GitHub Copilot, Docker, Kubernetes, Microservices architecture, Angular 21, Vue.js, TypeScript, Programmer, Full Stack Engineer, Architect, .NET Developer)In 2012 our client launched a social messaging platform that has been taking … these new markets and help enhance this already successful company! Successful .NET Developer candidates should be able to demonstrate strong knowledge of: .NET Core, C# and Azure SQL. Any experience in the following is desirable: .NET 10.0, C# 14, Azure SQL, .NET MAUI, GitHub Copilot, Docker, Kubernetes, Microservices architecture, Angular ...

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 ...

/CD pipelines-all while ensuring compliance with strict security standards. Requirements: Active SC Clearance (mandatory) Strong .NET Core/.NET Framework and C# skills Experience with RESTful APIs , OAuth/JWT , and API security Familiarity with Azure App Services, Functions, Storage, SQL Experience using Azure DevOps for CI/ ...

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 ...

skills. Able to communicate to stakeholders at all levels of the organisation and 3rd parties . Experience working with the following technologies: JavaScript, React, C# . NET , Python, SQL, APIs , Azure, Power Platform, SaaS , PaaS , IaC . Exposure to and understanding of emerging technologies e.g. AI, LLMs, Machine Learning ...

SENIOR SOFTWARE ENGINEER TO HAVE. Current enhanced DV clearance Experience with at least one or more of the following: Java, Python, C++, .NET, C#, JavaScript, React Experience mentoring juniors or leading a team Experience/Knowledge of automation IT WOULD BE NICE FOR THE SENIOR SOFTWARE ENGINEER TO HAVE. Cloud ...

testing tools like JMeter, Gatling, K6, Neoload, or Webload . Strong coding skills in at least one language such as Java, TypeScript JavaScript, Python, C#, , Scala, or PHP. Experience designing and building automation frameworks . Familiarity with Agile development environments (SCRUM, Kanban, TDD, BDD). Implementing pipelines using common tooling ...

growth product or consultancy setting. • Deep technical experience with Azure's AI ecosystem (AI Foundry, Azure AI Search, AKS). • Expertise in Python and C#, with strong architectural understanding of microservices and scalable APIs. • Hands-on familiarity with GitHub Actions, Docker, and Kubernetes. • Ability to design, review, and enforce coding ...

functional teams. Desirable Experience: Exposure to CEP engines (Esper) or other live stream aggregation technologies. Familiarity with authentication, authorization, and endpoint security. Experience with C#/HTML/JavaScript and AWS/Terraform/CI-CD pipelines. Why Join CMC Markets? Work on high-performance trading systems that have global ...

Senior Developer | Global Gaming Company | 4 days in London office What you'll do: Refactor C# apps into Python for performance Build real-time data pipelines with Snowplow Develop API integrations (Appsflyer, Firebase, sGTM) Design cloud solutions in Azure with alerting and failover Ensure scalability and reliability across global operations ...

professional software development Experience in professional, non-internship software development Experience programming with at least one modern language such as Java, C++, or C# including object-oriented design Preferred Experience Bachelor's degree in computer science or equivalent Experience with full software development life cycle, including coding standards, code reviews ...

Senior Software Engineer/Developer (C# .Net) London onsite to £150k Join a global hedge fund specialising in sports trading as a Senior Software Engineer, working on high-performance, real-time trading systems. You'll own greenfield projects, partner directly with quants and strategy teams and build low-latency backend … components and APIs with C# .Net, plus occasional frontend work in React. What you'll do: Design and develop real-time trading and pricing systems Lead greenfield feature builds with significant business impact Build backend services, APIs and trading engine components in C# Collaborate closely with strategy, quant and engineering ...