Senior C# Developer

TRIAD GROUP PLC; Milton Keynes; On-site; GBP 39,000 - 65,000; Full time

Benefits offered by this job

25 days annual leave

Matched pension contributions (5%)

Private healthcare with Bupa

Gym membership support

Job summary

Triad Group Plc is seeking a Senior C# Developer to design, develop, and maintain software using .NET Core and modern web frameworks. You will collaborate with cross‑functional teams to deliver high‑quality code that meets client needs.

The role requires 8+ years of C# experience, strong OOP skills, and familiarity with Agile/Scrum. UK-based work options include client sites, remote, or offices in Godalming or Milton Keynes; SC clearance is required for eligibility.

Qualifications

• 8+ years of experience as a C# developer or similar software development role.
• Proficiency in C# and the .NET framework, including .NET Core.
• Strong understanding of object‑oriented programming principles.

Responsibilities

• Design, develop, and maintain C# applications, components, and systems.
• Write clean, efficient, and maintainable code following best practices and coding standards.
• Collaborate with cross‑functional teams including designers, product managers, and other developers to understand project requirements and deliver high‑quality solutions.
• Participate in code reviews to ensure code quality and provide constructive feedback to peers.
• Troubleshoot and debug software applications to resolve issues and optimise performance.
• Stay updated with the latest trends and technologies in web development and software engineering.
• Document code and technical specifications.
• Contribute to the continuous improvement of development processes and methodologies.

Skills

C# / .NET

Agile / Scrum

SQL & ORMs

Code reviews & debugging

Team collaboration

Communication

Problem solving

Independent worker

Version control (Git)

AI-assisted development tools

Education

Degree in computer science or related field

Tools

Entity Framework

SQL Server

Git

React/Blazor/Angular basics

Job description

Senior C# Developer – SC Cleared (Permanent)

Based at client locations, working remotely, or based in our Godalming or Milton Keynes offices.

Salary up to £65k, plus excellent company benefits.

Role Summary

Triad Group Plc is seeking a skilled and experienced Senior C# Developer to join our dynamic team. As a Senior Developer, you will design, develop, and maintain software applications using .NET Core with associated web frameworks (React, Blazor, Angular). You will collaborate with cross‑functional teams to understand project requirements, propose solutions, and deliver high‑quality code that meets our clients’ needs.

Key Responsibilities

• Design, develop, and maintain C# applications, components, and systems.
• Write clean, efficient, and maintainable code following best practices and coding standards.
• Collaborate with cross‑functional teams including designers, product managers, and other developers to understand project requirements and deliver high‑quality solutions.
• Participate in code reviews to ensure code quality and provide constructive feedback to peers.
• Troubleshoot and debug software applications to resolve issues and optimise performance.
• Stay updated with the latest trends and technologies in web development and software engineering.
• Document code and technical specifications.
• Contribute to the continuous improvement of development processes and methodologies.

Skills and Experience

• 8+ years proven experience as a C# Developer or similar software development role.
• Proficiency in C# and the .NET framework, including .NET Core.
• Strong understanding of object‑oriented programming principles.
• Experience with Agile or Scrum development methodologies.
• Familiarity with relational databases (SQL Server, MySQL, PostgreSQL) and ORM frameworks (Entity Framework).
• Excellent problem‑solving and analytical skills.
• Good communication and collaboration abilities.
• Ability to work independently and in a team environment.
• Strong attention to detail and dedication to delivering high‑quality work.
• Experience with version control systems (Git preferred).
• Experience using AI‑assisted development tools (Claude, GitHub Copilot, or similar) with an understanding of responsible and secure AI use.

Qualifications & Certifications

• A degree or equivalent qualification in a related field – Desirable.
• Must be willing and eligible to obtain an SC clearance; must have resided in the UK for a minimum of 5 years and have the right to work in the UK.
• Must hold an active SC clearance.

Triad’s Commitment to You

• Continuous Training & Development: Access to top‑rated Udemy Business courses.
• Work Environment: Collaborative, creative, and free from discrimination.
• 25 days of annual leave, plus bank holidays.
• Matched pension contributions (5%).
• Private healthcare with Bupa.
• Gym membership support or access to Lakeshore Fitness.

Triad is an equal opportunities employer and welcomes applications from all suitably qualified people regardless of sex, race, disability, age, sexual orientation, gender reassignment, religion, or belief. We are proud that our recruitment process has been recognised as inclusive and accessible to disabled people who meet the minimum criteria for any role. We are a signatory on the Tech Talent Charter and a Disability Confident Leader.