SOFTWARE DEVELOPER UNIT TESTER

Overview

Quantum Research International, Inc. (Quantum) is a certified DoD Contractor providing services and products to US/Allied governments and industry in the following main areas: (1) Cybersecurity, High Performance Computing Systems, Cloud Services and Systems; (2) Space and Ground Support Systems; (3) Aviation Systems; (4) Missile Systems; (5) Artificial Intelligence/ Machine Learning Systems and Experimentation/Training; and (6) Audio Visual Systems and Services. Quantum's Corporate Office is in Huntsville, AL, but Quantum actively hires for positions nationwide and internationally. We pride ourselves on providing high quality support to the U.S. Government and our Nation's Warfighters. In addition to our corporate office, we have physical locations in Aberdeen; MD; Colorado Springs, CO; Orlando, FL; Crestview, FL; and Tupelo, MS.

Mission

Quantum is seeking a Software Developer Unit Tester, you will collaborate with developers, cybersecurity engineers, and mission stakeholders to ensure test coverage, traceability, and documentation meet both technical requirements and government quality standards.

Responsibilities

• Develop, maintain, and execute unit test scripts for .NET applications in accordance with PWS quality assurance and software assurance deliverables.
• Ensure compliance with DoD testing frameworks and provide traceability to requirements, use cases, and acceptance criteria.
• Apply test-driven development (TDD) and best practices to increase automation and reduce reliance on manual testing.
• Utilize test frameworks such as NUnit, xUnit, and MSTest, and integrate them into government-directed CI/CD pipelines (GitLab, Azure DevOps, Jenkins).
• Employ mocking/stubbing frameworks (e.g., Moq, NSubstitute) to support isolated testing of C# components.
• Provide test documentation, including Test Plans, Test Procedures, and Test Results Reports, aligned with RMF, DISA STIGs, and software assurance checklists.
• Participate in code reviews and contribute to government-led Configuration Control Boards (CCBs).
• Support integration with mission systems hosted at the Force Tracking Mission Management Center (MMC) and other Army/Joint environments.
• Document findings and deliver defect reports, corrective action recommendations, and regression testing results in accordance with contract data requirements (CDRLs). 
  
  

Required Skills And Qualifications

• Must have an Active Secret Security Clearance and be able to obtain a DOD Top Secret Security Clearance and be eligible for SCI
• Minimum 3–5 years of experience with C# .NET framework/core development and testing.
• Demonstrated experience with unit testing frameworks (xUnit, NUnit, MSTest).
• Familiarity with mocking frameworks (Moq, NSubstitute, RhinoMocks).
• Experience integrating tests into DoD-approved DevSecOps pipelines.
• Strong understanding of object-oriented programming (OOP) and secure coding practices.
• Knowledge of version control (Git), branching strategies, and government-mandated repository management.
• Active DoD 8570/8140 certification (e.g., Security CE, CISSP, CASP ) or ability to obtain within contract timeframe.     
  
  

Desired Skills And Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, or related field.
• Experience supporting Army Software Factory or DoD software assurance initiatives.
• Familiarity with RMF processes, STIG compliance, and automated security scans (SonarQube, Fortify, Sonatype).
• Knowledge of containerized environments (Docker, Kubernetes, AWS EKS) supporting Army/Joint cloud adoption.
• Prior experience supporting SMDC, J6, or mission systems within the friendly force tracking ecosystem.
• Strong documentation skills to support contract deliverables (CDRLs, PWS tasking, and TO metrics).
  
  

Equal Opportunity Employer/Affirmative Action Employer M/F/D/V: All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, disability, veteran status, genetic information, sexual orientation, gender identity, or any other characteristic protected by law. *Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.