Senior .Net Developer

Salary: £50,000 - 85,000 per year

Requirements:

• 5+ years of backend development experience
• Strong .NET and C# skills for API development and business logic implementation
• Expertise in SQL Server, including query optimization, indexing, and stored procedures
• Proficiency in RESTful API development, with a strong understanding of error handling, logging, and monitoring
• Good understanding of Windows Forms
• Experience with Git, version control workflows, and agile development methodologies
• Experience setting up and managing Azure DevOps pipelines for CI/CD automation
• Good familiarity with Swagger for API documentation
• SAP Business One or similar accounting system experience
• Hands-on experience with SAP backend table integration via APIs
• Knowledge of Azure services for API hosting and cloud infrastructure management
• Knowledge of web frontend technologies

Responsibilities:

• Build and maintain RESTful APIs in VB.NET and C#, integrating with SQL Server and SAP Business One backend tables
• Write optimized SQL queries, stored procedures, and indexing strategies to efficiently handle large datasets
• Monitor and enhance API performance, database query execution, and application scalability
• Maintain clear and detailed documentation for APIs, database structures, and back-end infrastructure
• Work closely with SAP consultants, frontend developers, and DevOps engineers to ensure seamless system integration
• Conduct code reviews, debugging, and error handling to maintain system reliability
• Stay up to date with API design standards, database performance tuning, and cloud integration trends

Technologies:

• API
• Azure
• Backend
• C#
• CI/CD
• Cloud
• DevOps
• Frontend
• Git
• SAP
• SQL
• Swagger
• Web
• Windows
• Windows Forms
• ASP.NET
• Security
• Visual Basic

More:

We are an established financial software house based in North London, working with leading brands in retail and media to deliver financial management systems developed in house by our small, dynamic team of tech professionals. This is a Senior .Net Back End Developer role, and the position is fully office based.

last updated 32 week of 2026