Senior Software Test Engineer (Hybrid)

DAn Solutions•Washington, DC

2d•Hybrid

About The Position

DAn Solutions is seeking a detail-oriented Senior Software Test Engineer to support testing and modernization of a critical government information system. The role emphasizes functional and regression testing of Java-based web applications, including UI validation, accessibility compliance, and cross-browser compatibility. It also involves backend troubleshooting through application and server log review, API validation, and database queries to isolate defects and provide actionable diagnostic information to developers. The position supports enterprise systems incorporating Apache Tomcat, Oracle 19c, Apache Solr, LDAP, and SAP Business Intelligence. The work includes test planning and execution, compliance and accessibility testing, test automation and integration, system component testing, and collaboration and documentation. The role follows a hybrid schedule requiring approximately 2–3 days on-site per week, with seating available in Annapolis Junction, Maryland; Washington, DC; or Reston, Virginia. No remote work is available. An active TS/SCI clearance with polygraph is required by the posting.

Requirements

U.S. citizenship.
Ability to obtain TS/SCI clearance with CI polygraph; the posting also states that an active TS/SCI clearance with polygraph is required.
Extensive experience performing functional and regression testing of web application user interfaces.
Strong UI testing experience, including interface validation and cross-browser compatibility.
Demonstrated experience troubleshooting backend application failures by reviewing application and server logs to determine root cause.
Proficiency with defect tracking systems.
Experience writing and executing SQL queries to validate application data.
Experience verifying system installation, configuration, integration, and overall system buildout.
18 years of experience in software engineering, systems engineering, or a closely related field with comparable scope and responsibilities. A bachelor's degree may substitute for four years of experience; a master's degree may substitute for six years of experience.

Nice To Haves

Excellent analytical skills and thorough technical documentation practices.
Strong collaboration skills and experience working with cross-functional teams in regulated environments.
Knowledge of federal cybersecurity requirements and Section 508/WCAG accessibility standards.
Familiarity with Windows Server environments.
Experience testing Apache Tomcat application servers, Oracle 19c databases, and SAP Business Intelligence interfaces.
API testing experience involving Apache Solr and RESTful services.
Experience with CI/CD pipelines, preferably GitLab.
Active TS/SCI security clearance with polygraph.

Responsibilities

Develop comprehensive test plans and test cases for system upgrades and new functionality.
Perform functional and regression testing of Java-based web applications.
Conduct UI validation and cross-browser compatibility testing.
Execute manual testing for complex application scenarios.
Review and troubleshoot backend application and server logs to identify causes of application failures.
Perform API testing for backend services, including Apache Solr and RESTful services.
Execute SQL queries to validate application data and database integrity.
Verify system buildout activities, including installation, configuration, and integration.
Track, document, and manage software defects while coordinating resolution with development teams.
Validate application compliance with federal cybersecurity requirements.
Ensure adherence to Section 508 and Web Content Accessibility Guidelines (WCAG).
Test enterprise applications operating in Windows Server environments.
Verify security controls and data protection measures.
Develop and maintain UI automation frameworks for regression testing.
Integrate automated testing into GitLab CI/CD pipelines.
Support improvements to automated test execution and overall testing efficiency.
Test Apache Tomcat application server deployments and configurations.
Validate authentication and backend interactions with LDAP services.
Test Oracle 19c database integrations and data flows.
Verify data migration integrity and application integrations with Apache Solr.
Test SAP Business Intelligence reporting interfaces and outputs.
Ensure a consistent and reliable user experience across the modernized platform.
Collaborate with developers, business analysts, cybersecurity personnel, and other technical stakeholders.
Document testing activities, results, defects, and quality metrics.
Prepare detailed analytical reports regarding system quality, defects, and release readiness.