Software Development Engineer in Test (SDET)

Position Summary

We are seeking an engineering-focused Software Development Engineer in Test (SDET) to support the development and quality assurance of enterprise-grade .NET Core and Azure-based applications. This role is responsible for designing scalable unit test automation, validating cloud-native systems, and integrating automated testing into CI/CD pipelines. The ideal candidate is a strong software engineer with experience in automation, API/backend validation, cloud environments, and modern quality engineering practices.

Requirements

• U.S. Citizenship required.

• Ability to pass federal and local background investigations.

• Hybrid schedule: 2 days/week onsite in Rockville, MD.

• Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or related field.

• Required Experience:

  • 3+ years of experience in software engineering, quality engineering, or test automation.
  • Strong programming experience with C#, .NET Core/.NET.
  • Experience building and maintaining automated test frameworks MsTest or NUnit.
  • Experience testing web applications, REST APIs, distributed systems, and Azure-hosted applications.
  • Experience integrating automated testing into CI/CD pipelines using Azure DevOps, GitHub Actions, Jenkins, or similar platforms.
  • Experience with Git workflows, SQL/database validation, and backend testing.
  • Strong debugging, analytical, and root-cause analysis skills.
  • Understanding of SDLC, Agile methodologies, and modern quality engineering practices.
  • Ability to perform targeted manual exploratory and edge-case testing when needed.

Preferred Experience

• Experience with Azure services including App Services, Azure Functions, Azure SQL, Service Bus, Application Insights, and Azure Monitor.

• Familiarity with Microsoft Entra ID (Azure AD), OAuth, OIDC, and RBAC.

• Experience with Docker, Kubernetes, or containerized environments.

• Experience with performance, load, or reliability testing.

• Experience testing AI-enabled or machine learning-powered applications.

• Familiarity with regulated or compliance-driven environments (FedRAMP, NIST, etc.).

Responsibilities

• Design, develop, and maintain scalable automated testing frameworks and quality engineering infrastructure.

• Create automated UI, API, integration, regression, and end-to-end tests.

• Integrate automated testing into CI/CD deployment pipelines.

• Collaborate with software engineers, product owners, and technical teams throughout the development lifecycle.

• Participate in sprint planning, code reviews, and technical design discussions with a quality-first mindset.

• Troubleshoot defects, perform root-cause analysis, and support resolution efforts.

• Validate APIs, backend services, authentication flows, data integrity, and cloud-based system integrations.

• Build reusable testing utilities, mocks, fixtures, and automation tooling.

• Support performance, reliability, security, and scalability testing initiatives.

• Continuously improve automation coverage, testing processes, and engineering best practices.

About Potawatomi Federal Solutions

Potawatomi Federal Solutions is a federal government contractor who provides essential services and administrative support to Potawatomi Business Development Corporations’ family of industry-leading federal government contracting subsidiaries. We are 100% tribally owned small business of the Forest County Potawatomi Community of Wisconsin. In 2007, we launched with one mission in mind: to create a profitable tribal enterprise to allow us to invest in the health, wellness, education, environment and future of our people for generations to come.