Demo

Senior Test Engineer

Celestar Corporation
Washington, DC Full Time
POSTED ON 10/23/2026
AVAILABLE BEFORE 12/22/2026
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Description

Senior Test Engineer


Summary

We are seeking a Senior Test Engineer to support the modernization and validation of a mission-critical government information system. The successful candidate will lead testing activities for Java-based web applications, ensuring functionality, compliance, accessibility, security, and performance across a complex enterprise environment. This role requires strong front-end testing expertise combined with backend troubleshooting skills to identify defects, validate integrations, and support successful system deployment.


Key Responsibilities
  • Develop and execute comprehensive test plans, test procedures, and test cases.
  • Perform functional, regression, integration, and user interface testing.
  • Validate cross-browser compatibility and accessibility compliance.
  • Conduct backend troubleshooting through application log analysis, API validation, and database queries.
  • Execute system build verification, installation, configuration, and integration testing.
  • Validate Apache Tomcat, Oracle 19c, Apache Solr, LDAP, and SAP Business Intelligence integrations.
  • Verify compliance with federal cybersecurity requirements and Section 508/WCAG standards.
  • Develop and maintain automated UI testing frameworks.
  • Integrate automated testing into GitLab CI/CD pipelines.
  • Track, document, and manage defects through resolution.
  • Produce test reports, readiness assessments, and quality metrics.
  • Collaborate closely with developers, business analysts, system administrators, and security personnel.
Required Qualifications
  • Active or ability to obtain TS/SCI with CI Polygraph; U.S. Citizenship required.
  • 18 years of experience in Software Engineering, Systems Engineering, Testing, or a related technical discipline.
  • Extensive experience performing functional and regression testing of web-based user interfaces.
  • Strong expertise in UI validation and cross-browser compatibility testing.
  • Experience troubleshooting application and server-side issues through log analysis.
  • Proficiency with defect tracking tools and processes.
  • Experience creating and executing SQL queries to validate system data.
  • Experience verifying system installations, configurations, and integrations.
  • API testing experience including RESTful services.
  • Knowledge of federal cybersecurity requirements.
  • Knowledge of Section 508 and WCAG accessibility standards.
  • Experience working in regulated government environments.
  • Strong analytical, documentation, and communication skills.
  • Ability to collaborate effectively across technical and program teams.
Desired Qualifications
  • Active TS/SCI with Polygraph.
  • Experience testing enterprise applications within Windows Server environments.
  • Experience testing Apache Tomcat application servers.
  • Experience validating Oracle 19c databases and data integrations.
  • Experience testing SAP Business Intelligence reporting solutions.
  • Experience validating Apache Solr integrations and search functionality.
  • Experience developing and maintaining automated UI testing frameworks.
  • Experience integrating test automation into GitLab CI/CD pipelines.
  • Knowledge of LDAP authentication and authorization testing.
Education Requirements
  • Bachelor's degree in Computer Science, Information Systems, Software Engineering, or related technical discipline.
  • A Bachelor's degree may substitute for 4 years of experience.
  • A Master's degree may substitute for 6 years of experience.

Security Requirements

  • Active or ability to obtain TS/SCI with CI Polygraph; U.S. Citizenship required.

Salary $170,000- 220,000


Work Location
  • Annapolis Junction, MD
  • Washington, DC
  • Reston, VA

Physical & Work Environment Requirements

  • Employees must be able to perform the essential functions of this position, with or without accommodation.
  • Ability to remain stationary for extended periods while working at a computer.
  • Frequently operate standard office equipment, including computers and telephones.
  • Ability to communicate effectively in person, by telephone, video conference, and email.
  • Occasionally move about the office and lift up to 20 pounds.
  • Ability to work the assigned schedule with regular and reliable attendance.
  • Ability to travel up to 10% as required.
Salary Description
170,000- 220,000

 

Salary : $170,000 - $220,000

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