C# Developer

C# Developers are central to modern application delivery, building scalable, maintainable systems that power digital transformation. This publication focuses on contract-based opportunities in London where mid-level expertise in .NET and cloud technologies could drive real impact across distributed teams and enterprise platforms. Please note the content of this advert does not represent a live vacancy. About The Opportunity This is an opportunity to register your interest in future C# Developer opportunities within London-based technology teams. Roles of this type sit within organisations modernising their application landscapes, often working on microservices architectures, cloud migration initiatives and API-driven platforms. The work could involve collaborating across distributed systems, contributing to CI/CD pipelines and leveraging Azure or AWS infrastructure to deliver solutions that scale. Typical Role Overview

• Location: London, Greater London, England
• Type: Contract
• Full-time
• Rate: £400–500 per day
• Domain: Software Development
• .NET / ASP.NET
• Cloud & Microservices What You Would Do Typical responsibilities could include:
• Developing and maintaining C# applications using .NET and ASP.NET frameworks
• Building and integrating APIs and microservices within distributed system architectures
• Contributing to CI/CD pipeline implementation and automation using modern tooling
• Working with cloud platforms such as Azure or AWS to deploy, scale and monitor applications
• Collaborating with cross-functional teams on design, code review and technical problem-solving
• Writing clean, maintainable code and contributing to technical standards across the team
• Supporting the integration of front-end frameworks such as React where applicable
• Participating in containerisation and orchestration work using Docker and Kubernetes What You Could Bring Most roles of this type require the following:
• 2–5 years' professional experience developing in C# and .NET / ASP.NET
• Solid understanding of object-oriented design principles and software architecture patterns
• Experience building or consuming APIs and working with microservices
• Familiarity with cloud platforms (Azure, AWS or GCP) and cloud-native development
• Working knowledge of SQL databases and data access patterns
• Experience with version control, CI/CD concepts and automated testing
• Bachelor's degree in Computer Science or equivalent professional experience
• Authorization to work in the United Kingdom Nice-to-have experience includes:
• Microsoft Certified: Azure Developer Associate or Microsoft Certified Solutions Developer (MCSD)
• Experience with containerisation (Docker, Kubernetes)
• Knowledge of distributed systems, event-driven architecture or messaging patterns
• Familiarity with additional languages such as Java, Python or F5
• Experience with infrastructure-as-code tools such as Terraform
• Understanding of BPMN, UML or data pipeline concepts What Roles Of This Type Could Offer Most roles of this type offer the following, dependent on the industry and seniority of the role:
• Contract-based flexibility and competitive daily rates (£400–500 per day)
• Exposure to modern cloud-native architectures and emerging technologies
• Opportunity to work on high-impact platforms serving large user bases
• Collaboration with skilled engineering teams across distributed systems
• Potential for professional development through exposure to cutting-edge frameworks and platforms
• Scope to influence technical decisions and contribute to architectural improvements
• Work aligned with modern DevOps and agile delivery practices About SThree SThree is the global STEM workforce consultancy. We advise businesses, build expert teams and deliver project solutions to outpace tomorrow, together. Across the UK, we connect talented specialists with cutting-edge opportunities across technology, engineering, life sciences and financial services supported by our offices in London, Birmingham, Manchester, Glasgow and Leeds How To Register Interest If you are interested in being added to our database to be considered for future opportunities, registering is quick and easy. No cover letter required. We will be in touch when we are instructed on these roles to discuss the next step in your career. : Please note that the content of this advert does not represent a live vacancy or any guarantee of future vacancies, and by responding to this advert you agree to us adding your details to our database for future opportunities.