Senior Software Test Engineer (TS/SCI)

This position requires an active U.S. Government Security Clearance at the TS/SCI level.

We are looking for a Software Tester to support a large-scale big data analytics platform supporting U.S. Government intelligence analysts. The selected candidate will work closely with software engineers, systems engineers, DevOps personnel, and end users to ensure the quality, reliability, performance, and usability of mission-critical applications and data services. This role requires strong analytical skills, hands-on testing experience in complex distributed systems, and the ability to operate effectively in an Agile development environment supporting national security missions.

Principal Responsibilities

• Design, develop, and execute manual and automated test plans, test cases, and test procedures.
• Validate functionality, performance, scalability, and reliability of web-based and data-centric applications.
• Perform integration, regression, system, and user acceptance testing across distributed environments.
• Identify, document, track, and verify software defects using issue tracking tools.
• Collaborate with developers, product owners, and system administrators to troubleshoot and resolve issues.
• Support CI/CD testing activities and participate in Agile ceremonies, including sprint planning and retrospectives.
• Verify data integrity and data flow across large-scale analytics and ingestion pipelines.
• Contribute to test automation frameworks and continuous quality improvement initiatives.
• Rigorously document detailed test processes.

Minimum Qualifications

• US citizenship and an active TS/SCI clearance is mandatory for this position and required for consideration. Must be willing to obtain a CI Poly.
• Minimum of 14 years of total professional experience in a technical support role, of which 5+ years has been in software testing, quality assurance, or related technical roles.
• Experience testing web applications, APIs, and distributed systems in a variety of environments.
• Knowledge of performance testing and security testing methodologies.
• Familiarity with Agile software development methodologies and DevOps practices.
• Experience with automated testing tools and scripting languages (e.g., Playwright, Selenium, Cypress, Python, JavaScript, or similar).
• Understanding of software defect tracking and test management tools such as Jira, TestRail, or equivalent.
• Demonstrated self-starter who consistently takes initiative with limited guidance and instruction.
• BS in Systems Engineering, Geographic Information Systems (GIS), Computer Systems Analysis, Electrical Engineering, Software Engineering or equivalent or related technical field.
• SCIF presence a minimum of 3 days per week, as program needs dictate.

Preferred Qualifications

• Familiarity with big data technologies such as Hadoop, Spark, Kafka, Elasticsearch, or similar platforms.
• Experience testing cloud-native applications in AWS, Azure, or Kubernetes environments.
• Experience with CI/CD pipelines and tools such as Jenkins, GitLab CI, or GitHub Actions.
• ISTQB or other software testing certifications.
• Experience working in high-availability, mission-critical production environments.
• Experience as a military/intelligence analyst, supporting the military/IC, or knowledge of some IC PED systems is a plus!

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Pay Transparency: To support pay transparency, Vantor includes salary ranges in all U.S. job postings. Starting pay for this role will fall within the listed range and will be based on factors such as experience, qualifications, skills, location, and market conditions. Candidates who meet the minimum requirements for the role should not expect to receive compensation at the top of the range. The listed range reflects the expected pay for this position, and final offers will be determined based on each candidate’s experience, expertise, and alignment with the role.

• The base pay for this position within the Washington, DC metropolitan area is: $120,000.00 - $160,000.00 - $176,000.00 annually.

For all other states, we use geographic cost of labor as an input to develop market-driven ranges for our roles, and as such, each location where we hire may have a different range.

Benefits: Vantor offers a competitive total rewards package that goes beyond the standard, including a robust 401(k) with company match, mental health resources, and unique perks like student loan repayment assistance, adoption reimbursement and pet insurance to support all aspects of your life. You can find more information on our benefits at: https://www.Vantor.com/careers

The application window is three days from the date the job is posted and will remain posted until a qualified candidate has been identified for hire. If the job is reposted regardless of reason, it will remain posted three days from the date the job is reposted and will remain reposted until a qualified candidate has been identified for hire.

The date of posting can be found on Vantor's Career page at the top of each job posting.

To apply, submit your application via Vantor's Career page.

EEO Policy: Vantor is an equal opportunity employer committed to an inclusive workplace. We believe in fostering an environment where all team members feel respected, valued, and encouraged to share their ideas. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, gender identity, sexual orientation, disability, protected veteran status, age, or any other characteristic protected by law.