VB.Net Developer

Crosstide Ltd; Greater London; On-site; GBP 60,000 - GBP 80,000; Full time

Job summary

A London-based consultancy is seeking an experienced Senior Developer to join their engineering team. This hands-on engineering role involves designing, building, and maintaining software within a mixed legacy and modern .NET environment. Candidates must have strong experience in .NET technologies, including ASP.NET and C#, and a solid understanding of SQL Server. The position requires contributions to code quality and reliability across a large codebase, making it ideal for someone comfortable with complex enterprise systems.

Qualifications

• Strong commercial experience with .NET, including ASP.NET and C#.
• Experience working with legacy .NET Framework applications.
• Solid understanding of SQL Server and relational database design.
• Experience working with CI/CD pipelines.

Responsibilities

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

Skills

ASP.NET

C#

VB.NET

SQL Server

CI/CD pipelines

Job description

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 modernization 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