Principal Software Engineer (.NET, AWS)

Resourceful Talent Group
New York, New York, United StatesFull-timePosted Sep 15, 2026

About the role

We are hiring a Principal Software 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

Direct hire only.

Must be a U.S. Citizen or a Green Card holder.

No C2C / No Third Parties.

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.

Qualifications

  • 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).

Skills mentioned

C#ASP.NET.NETAWSServerless ComputingSystem DesignDistributed SystemsReactTypeScriptUnit Testing

About Resourceful Talent Group

At Resourceful Talent Group, we're passionate about helping others succeed. Our mission is to find the perfect fit for clients and candidates every single time. No matter how unique or tough the ask may be, we pair quality talent with the right team, and we do it with speed. If an organization has a talent need, Resourceful Talent Group has them covered.

Staffing and Recruiting11-50 employeesAventura, Florida