Senior Software Engineer at Shieldpay

Setup: Hybrid
Location: London, England
Type: Full-time
Level: senior
Posted: Jul 28, 2026

Description

Shieldpay is hiring a Senior Software Engineer to modernise core C# and SQL systems by extracting legacy business logic, building clean services, and verifying changes in shadow mode without downtime. The role requires senior-level .NET experience across legacy .NET Framework 4.8 and modern .NET, strong SQL Server stored-procedure refactoring skills, JavaScript/TypeScript proficiency, and experience with golden-master testing, diffing, and shadow verification. AWS Lambda, SQS, SNS, and RDS experience is preferred, and the employer offers flexible working options including hybrid work.

Required Skills

.NET 6+
.NET Framework 4.8
SQL Server
JavaScript/TypeScript
Dependency Injection
Structured logging
Observability
Shadow verification
AWS Lambda

Additional Information

Required Previous Experiences: Senior-level hands-on experience with modern .NET and legacy .NET Framework 4.8
Proficiency in reading, understanding, and safely refactoring complex SQL Server stored-procedure logic
Working proficiency in JavaScript/TypeScript
Experience or comfort with golden-master testing, diffing, and shadow verification
Preferred Qualifications: Hands-on experience with AWS Lambda, SQS, SNS, and RDS
Comfort operating alongside an in-house AI-agent orchestrator

About Shieldpay

Shieldpay

legal paymentsLondon, GB

Shieldpay says it has processed over £18 billion in transactions and supports hundreds of law firms; it is trusted by 40+ of the UK's top 100 law firms. Founded in 2016, the company says it raised a Series A funding round.