Senior Software Test Engineer TS/SCI | Mission-Critical QA

Vantor Inc.; Herndon (VA); On-site; USD 120,000 - 176,000; Full time

Benefits offered by this job

401(k) match

Mental health resources

Student loan repayment assistance

Adoption reimbursement

Pet insurance

Job summary

Vantor Inc. is seeking a Software Tester to support a large-scale big data analytics platform for U.S. Government intelligence analysts.

You will work with software engineers, systems engineers, DevOps, and end users to ensure quality, reliability, performance, and usability of mission-critical applications and data services. The role requires strong analytical skills, hands-on testing in complex distributed systems, and the ability to operate in an Agile environment supporting national security

Qualifications

• US citizenship and active TS/SCI clearance required; CI Poly may be needed.
• Total 14+ years in technical roles; 5+ years in software testing/QA.
• Experience testing web apps, APIs, and distributed systems.
• Knowledge of performance and security testing methodologies.
• Familiarity with Agile and DevOps practices.
• Experience with automated testing tools and scripting languages (Playwright, Selenium, Cypress, Python, JavaScript).
• Understanding defect tracking and test management tools (Jira, TestRail or equivalent).
• Self-starter with initiative and minimal guidance.
• BS in Systems Engineering, GIS, Computer Systems Analysis, EE, SE or related field.
• SCIF presence requirement (3 days/week as needed).

Responsibilities

• Design, develop, and execute manual and automated test plans and cases.
• Validate functionality, performance, and reliability of web and data-centric apps.
• Perform integration, regression, system, and user acceptance testing.
• Identify, document, track, and verify defects; use issue tracking tools.
• Collaborate with developers, product owners, and sysadmins to resolve issues.
• Support CI/CD testing activities and participate in Agile ceremonies.
• Verify data integrity across large-scale analytics and ingestion pipelines.
• Contribute to test automation frameworks and quality initiatives.
• Rigorously document detailed test processes.

Skills

Playwright

Selenium

Cypress

Python

JavaScript

Agile methodologies

DevOps practices

Performance testing

Security testing

Test automation

Jira

TestRail

Jenkins

GitLab CI

GitHub Actions

Education

BS in Systems Engineering

Tools

Jira

TestRail

Jenkins

GitLab CI

GitHub Actions

Job description

Vantor Inc. is seeking a Software Tester to support a large-scale big data analytics platform for U.S. Government intelligence analysts.

You will work with software engineers, systems engineers, DevOps, and end users to ensure quality, reliability, performance, and usability of mission-critical applications and data services. The role requires strong analytical skills, hands-on testing in complex distributed systems, and the ability to operate in an Agile environment supporting national security