Software Development Engineer in Test; SDET

Position Title

Software Development Engineer in Test (SDET)

Rockville, MD (Hybrid 2 days a week on-site requirement)

$ +

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. This is an engineering-first SDET role rather than a traditional manual QA position. Candidates should demonstrate strong software engineering fundamentals alongside automation expertise, particularly within .NET Core and Azure environments.

• 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.

• 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 Dev Ops, Git Hub 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.

• Experience with Azure services including App Services, Azure Functions, Azure SQL, Service Bus, Application Insights, and Azure Monitor.
• Familiarity with Microsoft Entra  (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.).

• 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.

We offer a comprehensive benefits package designed to support the health, financial security, and overall well-being of our employees and their families. Our offerings include medical and prescription drug plans, dental coverage, group life insurance, and options for supplemental life insurance to provide additional protection. We also provide short-term and long-term disability insurance, flexible spending accounts, and employee assistance programs to help employees manage personal and professional needs.

Our package also includes identity theft protection and a competitive 401(k) retirement savings plan with company contributions, giving employees valuable resources to protect their future and achieve long-term financial goals.

Command Cyber Solutions, LLC is an equal opportunity employer. Command Cyber solutions, LLC does not discriminate in employment opportunities or practices on the basis of race, color, religion, sex, national origin, age, disability, marital status or any other characteristic protected by law.