Senior C# Engineer

• Lead the development and enhancement of complex web applications using C# and .NET Core.
• Architect, design, and optimise backend services with a focus on scalability, security, and maintainability.
• Work with Razor and .NET Framework components where legacy integration is required.
• Design efficient data models, write complex SQL queries, and contribute to database optimisation in SQL Server.
• Provide technical leadership, mentoring, and direction to mid-level developers.
• Collaborate with senior engineers, product owners, and stakeholders to define technical strategy and implementation approaches.
• Take ownership of integrating and leveraging Azure services in production systems.
• Drive continuous improvement across architecture, coding standards, DevOps practices, and overall engineering culture.

Do you have experience in System design?, * 5+ years of commercial experience working with C#, .NET Core, and modern backend architectures.

• Strong understanding of .NET Framework, Razor, and enterprise-level application development.
• Solid experience with SQL Server, database performance tuning, and data access patterns.
• Hands-on experience with Azure services in production environments.
• Proven ability to take responsibility for complex technical decisions and system design.
• Strong problem-solving mindset and the confidence to challenge assumptions and propose better solutions.
• Excellent communication skills and the ability to inspire and guide others within an onsite, collaborative team setting.

• Full-time, on-site role in a well-located office in North London.
• Senior-level ownership and influence within an experienced engineering team.
• Clear path for growth into technical leadership or architecture roles.
• Exposure to a modern and evolving tech stack including .NET Core and Azure.
• Opportunity to work on real products in active development with direct business impact.
• Supportive, startup-style culture with open communication, autonomy, and room for innovation.