Principal Software Engineer (.NET, AWS)

We are hiring a Principal Engineer for a client that provides a cloud-native SaaS platform supporting global creative teams. The platform leverages AWS serverless technologies, .NET, and React/TypeScript. This senior role focuses on architecture, scalability, engineering leadership, and hands-on development.

Responsibilities

• Lead the architectural direction and modernization of a large-scale SaaS platform.
• Improve system scalability, performance, and reliability.
• Build features in .NET and AWS (Lambda, API Gateway, DynamoDB, RDS, etc.).
• Guide backend, frontend, DevOps, QA, and offshore engineers.
• Implement and uphold engineering best practices and code standards.
• Collaborate with Product leadership to deliver high-quality releases.

Job requirements

• 10+ years of experience building SaaS applications.
• 3+ years in a Principal Engineer or Tech Lead role.
• Strong C#, ASP.NET, .NET Core, and xUnit experience.
• 1+ years AWS experience: Lambda, API Gateway, S3, CloudFormation, RDS, DynamoDB, EC2, Cognito.
• Strong system architecture and distributed systems expertise.
• Ability to review and guide React/TypeScript development.
• Excellent leadership and collaboration skills.
• Bachelor’s degree in Computer Science or related field (preferred).

Work Requirements

• Hybrid (New York, NY)
• Direct hire only.
• Must be a U.S. Citizen or Green Card holder.
• No C2C / No Third Parties.

Pay: $190,000.00 - $210,000.00 per year

Benefits

• Health insurance
• Paid time off

Application Question(s)

• Do you have 10+ years of experience developing SaaS products?
• Do you have expert-level proficiency in C# .NET ASP.NET, and XUnit?
• Do you have 3+ years of experience in a Principal Engineer or Tech Lead role?
• Are you a U.S. Citizen or Green Card holder?
• Do you have a minimum of 1 year of experience with AWS Lambda?

Work Location: Hybrid remote in New York, NY 10001