Major Derby IT & Digital
Software Developer
Job Description
Salary: £45,000 - 55,000 per year
Requirements:- We are looking for an experienced C# .NET v10 developer with strong React v19 skills.
- We need at least 5 years of commercial experience developing .NET applications.
- We are looking for strong experience in React-based development features.
- We need experience with React, TypeScript, Visual Studio, and .NET 10.
- We need knowledge of SignalR for real-time communication.
- We need experience with Tailwind CSS and UI development.
- We need a solid understanding of OOP, Entity Framework, and dependency injection.
- We need experience with unit and integration testing.
- We need experience with PostgreSQL and SQL Server, including vector search.
- We need experience integrating APIs.
- We need familiarity with AI tools such as Claude or Copilot.
- It is highly desirable to have experience with Python for AI tooling and evaluation scripts.
- It is highly desirable to have experience with Semantic Kernel or LangChain.
- It is highly desirable to have Linux or Docker experience.
- It is highly desirable to have MCP experience.
- We are developing new features for our software products.
- We are building new applications.
- We are delivering API integrations.
- We are supporting the development of real-time functionality using SignalR.
- We are working with AI tools as part of the role.
- We are based in Chesterfield and require office attendance at least 2 days per week, including Wednesdays.
- AI
- API
- ARM
- C#
- Copilot
- CSS
- Docker
- Linux
- MCP
- OOP
- PostgreSQL
- Python
- React
- SQL
- SignalR
- TypeScript
- Visual Studio
- UX UI Design
- ASP.NET
- Support
More:
We are a leading international business with over 30 years of experience delivering industrial IT solutions across the manufacturing, energy, and utility sectors. We have achieved the Investors in People award for the last 20+ years and continue to invest in self-development for all our internal teams. This is a brand new role within our Chesterfield software development arm, offering the opportunity to join a well-established development team during a period of continued expansion. We provide an intensive training and development programme, along with a learning budget to help you upskill in AI tools and related technologies.
last updated 33 week of 2026
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About Major Derby IT & Digital
Major Derby IT & Digital
Chesterfield
IT
Skills & Technologies
Inferred from job description
Salary Insight
£50,000
This role
£55,000
UK median
This salary is 9% below the UK median for Developers (£55,000/yr).
Based on 2024–2025 UK technology sector benchmarks