5 of 5 Permanent C# Developer Jobs in Leicestershire

C# Developer Location: Swindon - twice a month on-site Salary: £40,000 - £45,000 plus benefits About the Role We're looking for a Junior to Mid-Level Developer with strong C# programming skills to join a small, collaborative team working on enterprise systems … across a variety of industries. This role is ideal for someone with a solid foundation in C# who is eager to grow their experience in modern web development and legacy system support You'll be involved in both maintaining existing WinForms applications and contributing to new development using Blazor. … a collaborative team. They also provide Microsoft enterprise licenses so that you can up skill and gain qualifications Technical Skills Required Strong experience with C# (core language focus) Exposure to Blazor or other modern web UI frameworks (e.g., Razor Pages, React, Angular) Familiarity with WinForms for legacy application support More ❯

Full-time C# Developer - Energy Trading Systems (Remote/Brighton) Location: South-East/Brighton, UK (Remote with occasional Brighton visits) Boutique company seeks a talented C# Developer (10-15+ years .NET) to maintain and enhance a critical Position Management system for a … major UK Energy Trading house. Front Office experience, ideally in Energy (Gas & Power) or commodities, and direct interaction with Traders is key. Required: Strong C#, .NET 7/8, Microservices, XML/JSON/REST APIs, Webservices, Design Patterns, SQL Server, Azure (DevOps, Pipelines, Functions, Security), Git/GitHub More ❯

for any application - even if this is via personal projects, It doesn't need to be commercial experience. Core technologies utilised in this team - C#, F#, TypeScript, SQL Server The Senior Software Developer is likely to have a relevant degree in Computer Science or similar subject and … policy with no requirement to visit an office. Essential experience: Functional programming experience or a vested interest in functional programming even in personal projects C# SQL Web application development Experience in any of the following areas would be advantageous F#, Haskell or similar functional programming language Functional programming in … C# Domain driven design Language-ext Property-based testing Domain specific languages TypeScript Healthcare or medical industry experience If you are seeking a role of this nature, please get in touch for more information. More ❯

a forward-thinking software team making a genuine impact in UK public safety, working for a family-run software house. This hybrid Senior Developer position is perfect for someone who wants to build secure, scalable applications, lead by example, and enjoy autonomy in architectural decisions. The opportunity: You … life—balancing legacy modernisation with brand-new product development. Responsibilities: Designing, developing, and deploying secure, cloud-first applications in high-trust environments Working with C#, .NET Core, Angular, and AWS across multiple projects Writing clean, testable code and implementing CI/CD pipelines Collaborating with Product Owners, QA and … and test coverage About you: Ability to successfully secure Security Clearance to the Government standard 5+ years’ commercial software development experience Proven background in C#, .NET Core, and cloud technologies Solid front-end experience with Angular and JavaScript/TypeScript Knowledge of secure coding principles, clean architecture, and modern More ❯

Senior Full Stack C# .NET DeveloperFully Remote (UK Residents Only) About WebX Systems At WebX, we specialise in technical publishing and content management solutions for the aerospace and defence sectors worldwide. Our flagship products— UltraCSDB®, UltraAuthorTM, UltraXMLTM , and UltraPortalTM —are used globally and combine proven legacy systems with cutting … cloud-native architecture. This role is perfect for someone who enjoys innovating within established environments while also driving forward new development. Technology Stack Legacy C#, .NET Framework, WinForms, WCF Client-Server Architecture, MS SQL Server Modern .NET 9, Blazor, Minimal APIs Entity Framework, Redis, RabbitMQ Aspire (.NET), Cloud-Native … into technical requirements. Continuous Improvement – Proactively refactor and optimise existing codebases; contribute to internal documentation. Required Skills & Experience 5+ years of commercial experience in C# and .NET. Expertise in: .NET Framework and WinForms Modern .NET (.NET 9) SQL Server (including performance optimisation) Front-end tech (HTML, CSS, JavaScript) Proven More ❯