Hydrogen Group
Senior .NET Developer
Hydrogen GroupUnited Kingdom9 hours ago
ContractEngineering

Are you an experienced .NET Developer looking to work on high-impact projects in the financial domain? We’re partnering with a leading global financial services organisation to expand their London technology team. This is an excellent opportunity to contribute to cutting-edge systems in Capital Markets and Risk Management, working with modern tools and robust enterprise-level platforms.

Key Responsibilities

  • Design, develop, and maintain robust applications using C#, .NET Core / .NET Framework.
  • Collaborate with business and technology teams across the full software development lifecycle — from requirements gathering to deployment.
  • Build scalable, high-performance solutions using MVC architecture, RESTful APIs, and strong OOP principles.
  • Develop and optimise complex SQL queries for SQL Server databases.
  • Apply design patterns and best practices to deliver maintainable, high-quality code.
  • Enhance and support Windows desktop applications (WinForms, WPF) working with large on-premise data sets.
  • Participate in code reviews, documentation, and CI/CD pipelines using Git and modern DevOps practices.
  • Support both legacy and modern systems, contributing to technology uplift initiatives.

Skills & Experience

  • 8–10 years of hands-on experience in .NET software development.
  • Strong proficiency in C#, .NET Core / .NET Framework, and SQL Server.
  • Proven experience developing Windows desktop apps (WinForms, WPF) and working with large on-prem databases.
  • Solid understanding of MVC, RESTful APIs, OOP, and software design patterns.
  • Exposure to Azure or AWS cloud environments.
  • Familiarity with Git, CI/CD, and modern deployment methodologies.
  • Excellent communication skills with the ability to engage both technical and non-technical stakeholders.

Preferred:

  • Domain experience in Capital Markets — particularly Market Risk, Credit Risk, Counterparty Risk, or Trade Lifecycle systems.

What We’re Looking For

  • A detail-oriented and analytical developer with strong problem-solving skills.
  • Someone proactive, collaborative, and comfortable working in a fast-moving financial environment.
  • Experience in banking or financial services is a plus.

Key Skills

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