Senior Software Test Engineer (TS/SCI)

Vantor•Herndon, VA

8d•Hybrid

About The Position

Vantor is seeking a Software Tester to support a large-scale big data analytics platform for U.S. Government intelligence analysts. The role involves close collaboration 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 position 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. To be eligible, candidates must be U.S. Citizens and possess an active TS/SCI security clearance, with a willingness to obtain a CI Poly. Employment is contingent upon verification of clearance status. Certain roles may be subject to U.S. export control laws, requiring U.S. person status.

Requirements

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.

Nice To Haves

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!

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.