VB.Net Developer at Crosstide, London/Remote, 6 Months, £Contract Rate (Outside IR35)

Crosstide is a London-based digital transformation consultancy with a proven track record of delivering high-value, complex software solutions for enterprise businesses. Engineering quality and speed to value are at the heart of everything we do, reflecting our founding values of quality, simplicity, and collaboration.

We are looking for an experienced Senior Developer to join our engineering team. This is a hands-on engineering role focused on designing, building, and maintaining software across a mixed legacy and modern .NET estate.

Key Responsibilities:

• Design, develop, and maintain features.
• Work with a large, multi-repository codebase, including legacy and maintenance-mode systems.
• Contribute to improving code quality, performance, and reliability.
• Support incremental modernisation and refactoring efforts where appropriate.
• Participate in code reviews and contribute to shared engineering standards.
• Help diagnose and resolve production issues.

Key Requirements:

• Strong commercial experience with .NET, including ASP.NET and C#
• Strong Experience with VB.NET
• Experience working with legacy .NET Framework applications
• Solid understanding of SQL Server and relational database design
• Experience working with CI/CD pipelines and structured deployment processes
• Comfortable working in complex, long-lived enterprise systems

Contract Details:

• Outside IR35
• 6 months
• London - 1 day per week