Senior Test Engineer

Celestar Corporation; Washington (District of Columbia); On-site; USD 170,000 - 220,000; Full time

Job summary

Celestar Corporation seeks a Senior Test Engineer to lead testing for a government information system. You will ensure functionality, accessibility, security, and performance across a complex enterprise environment, with strong front-end testing and backend troubleshooting skills.

You will develop automated UI tests, validate integrations, and support deployments. This role requires collaboration with developers, analysts, admins, and security personnel to deliver quality releases.

Qualifications

• Experience performing functional and regression testing of web-based user interfaces.
• Strong UI validation and cross-browser compatibility testing skills.
• Ability to troubleshoot application and server-side issues via log analysis.
• Experience with defect tracking tools and processes.
• Experience creating and executing SQL queries to validate data.
• API testing experience including RESTful services.

Responsibilities

• Develop and execute comprehensive test plans, procedures, and cases.
• Perform functional, regression, integration, and UI testing.
• Validate cross-browser compatibility and accessibility compliance.
• Conduct backend troubleshooting via logs, APIs, and DB queries.
• Execute build verification, installation, configuration, and integration testing.
• Verify integrations with Tomcat, Oracle 19c, Solr, LDAP, and BI tools.

Skills

UI testing

Cross-browser testing

Log analysis

Defect tracking

API testing (REST)

SQL queries

Education

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

Tools

GitLab CI/CD

Oracle 19c

Apache Tomcat

Apache Solr

LDAP

SAP Business Intelligence

Job 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