Senior Software Engineer- .Net C# Restful API backend Dev

Our philosophy is to understand our customers’ business first before we get to the technology.

This approach leads to clever software; streamlining old processes, saving money and delivering positive change.

Our technology has helped the NHS screen millions of babies for hearing loss, ensures hundreds of housing providers are managing their homes efficiently and helps officers in over a dozen different police forces to make better decisions at the frontline.

Based in the UK but working around the world, our 2,000 employees help improve the services that matter most.

We are now part of the NEC corporation, a leader in the integration of IT and network technologies that benefit businesses and people worldwide - this brings in new opportunities without limits for growth and innovation.

Essential Skills

Core Development

• Strong commercial experience with C# and .NET Framework 4.7.2
• Experience designing, developing and maintaining RESTful APIs
• Strong understanding of JSON-based API design and integration
• Excellent knowledge of object-oriented design and development principles
• Experience working with multi-layered enterprise applications
• Strong debugging, troubleshooting and problem-solving skills

Database Development

• Strong experience working with Microsoft SQL Server
• Ability to design, develop and optimize:
  • SQL queries
  • Stored procedures
  • Views
  • Database indexes
• Understanding of database performance tuning and query optimization
• Experience working with large or business-critical data sets

Data Access & Application Architecture

• Experience working with custom or proprietary data access layers
• Understanding of data access patterns and application layering
• Experience integrating with internal and third-party systems and services
• Ability to design maintainable and scalable back-end solutions

API & Security

• Strong understanding of:
  • HTTP and HTTPS
  • REST principles
  • API versioning
  • Authentication and authorization concepts
  • Error handling and logging
• Understanding of secure coding practices and application security principles

Engineering Practices

• Experience using source control systems such as Git and Azure DevOps
• Ability to write clean, maintainable and testable code
• Experience conducting code reviews and providing constructive feedback
• Experience investigating and resolving production issues
• Ability to contribute to technical design discussions and solution reviews

AI-Assisted Development

• Experience using AI-assisted software development tools such as GitHub Copilot, Microsoft Copilot, Cursor or equivalent
• Ability to utilize AI tools to improve development productivity and accelerate delivery
• Experience reviewing, validating and testing AI-generated code
• Understanding of responsible and secure use of AI-assisted development practices

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