Sr. Software Test Engineer (Hybrid Remote - TS/SCI Poly) with Security Clearance

Zachary Piper Solutions is seeking a Senior Software Test Engineer to support the modernization of a mission-critical government information system. This role combines advanced software testing, UI validation, backend troubleshooting, automation, and compliance verification to ensure enterprise applications meet performance, usability, and security requirements. The ideal candidate has extensive experience testing web applications in secure environments and can work closely with development, infrastructure, and cybersecurity teams throughout the software development lifecycle.

Work Environment Hybrid role supporting a critical federal modernization effort. Candidates may work from Reston, VA; Joint Base Anacostia-Bolling (Washington, DC); or Annapolis Junction, MD , with 2-3 days onsite each week. This position works closely with development, infrastructure, and cybersecurity teams supporting enterprise applications in a highly secure environment. Responsibilities

• Develop and execute comprehensive test plans, test cases, regression tests, and acceptance test procedures.
• Perform UI validation, cross-browser testing, accessibility testing, and user experience verification.
• Review application, database, and server logs to identify and troubleshoot defects.
• Execute API testing and database validation using SQL.
• Support system installation, configuration, integration, and environment buildout activities.
• Manage defects throughout the testing lifecycle and coordinate issue resolution activities.
• Validate compliance with federal cybersecurity requirements and Section 508/WCAG accessibility standards.
• Develop and maintain automated UI testing frameworks.
• Integrate automated test suites into GitLab CI/CD pipelines.
• Collaborate with developers, business analysts, infrastructure teams, and security personnel to ensure quality across all environments.
• Prepare testing documentation, reports, and recommendations for stakeholders and leadership. Qualifications
• 15+ years of experience in software testing, quality assurance, systems engineering, or related technical disciplines.
• Strong experience performing functional, integration, and regression testing of enterprise web applications.
• Expertise in UI testing, accessibility validation, and cross-browser testing.
• Experience troubleshooting application failures through backend log analysis.
• Strong SQL skills for database validation and testing activities.
• Experience supporting system installations, upgrades, integrations, and environment builds.
• Strong documentation, analytical, and problem-solving skills.
• Experience working in highly regulated or secure government environments. Clearance Requirement
• Active TS/SCI Clearance with CI Polygraph required. Preferred
• Experience with Apache Tomcat, Oracle 19c, Apache Solr, and SAP Business Intelligence platforms.
• Knowledge of Windows Server environments.
• Experience testing RESTful APIs and search platforms.
• Experience developing and maintaining automated testing frameworks.
• Familiarity with GitLab CI/CD and DevSecOps practices.
• Experience supporting federal modernization or enterprise migration programs. Compensation & Benefits:
• Salary Range: $170,000 - $230,000 based on experience.
• Comprehensive benefits package including medical, dental, vision, 401(k), PTO, sick leave, and federal holidays.

Application Period: Opens on 10/22/2026 and will be accepted for at least 30 days from the posting date. #LI-NJ1 #LI-Hybrid