Cybersecurity Test Engineer - Top Secret Clearance

Diversified Technical Services, Inc; San Antonio (TX); On-site; USD 95,000 - 135,000; Full time

Job summary

Diversified Technical Services, Inc. is seeking a Cybersecurity Test Engineer with an active TS/SCI clearance to design, execute, and optimize software test procedures for mission-critical capabilities in a secure, classified DoD environment.

You will work on a high-impact program, ensuring operational readiness and cyber resilience across distributed systems, with responsibilities spanning test planning, automation, and rigorous reporting.

Qualifications

• 4+ years of software testing in DoD or secure environments.
• Proficiency with JIRA, TestRail and automated testing frameworks.
• Experience in Agile or DevSecOps environments.
• Active TS/SCI security clearance.
• DoD 8140.03, IA Technician Level II certification (Security+ CE).

Responsibilities

• Conduct rapid testing and deployment of System Support Services in secure test environments.
• Design, implement and conduct test procedures to ensure system requirements are met.
• Develop, maintain and upgrade test scripts and architectures for application products.
• Write, implement and report status for system test cases based on design specs.
• Analyze test cases and provide regular progress reports.
• Serve as SME providing testing know-how for complex software/hardware requirements.
• Ensure documentation is updated with new user requirements.
• Evaluate, recommend and implement automated test tools and strategies.
• Design, document and execute test plans and test cases.
• Perform related duties as assigned by supervisor and maintain compliance with policies.

Skills

Test management tools

Automated testing

Agile/DevSecOps

TS/SCI clearance

DoD 8140.03

Tools

JIRA

TestRail

Job description

DTSI is seeking a Cybersecurity Test Engineer with an active TS/SCI clearance to design, execute, and optimize software test procedures supporting mission-critical capabilities in a secure, classified environment. This role is part of a high-impact program supporting a DoD customer, ensuring operational readiness and cyber resilience across distributed systems.

Duties & Responsibilities

• Conduct rapid testing and deployment of System Support Services using distributed, secure test environments
• Designs, implements and conducts test and evaluation procedures to ensure system requirements are met
• Develops, maintains and upgrades test scripts and architectures for application products
• Write, implement and report status for system test cases for testing based on system design specifications
• Analyze test cases and provides regular progress reports
• Serves as subject matter specialist providing testing know-how for the support of user requirements of complex to highly complex software/hardware applications
• Ensures documentation is updated based on the new user requirements
• Evaluates, recommends and implements automated test tools and strategies
• Must be able to successfully design, document and execute test plans and test case
• Perform related duties as assigned by supervisor
• Maintain compliance with all company policies and procedures

Requirements

• 4+ years of software testing / QA experience in DoD or other secure operational environments.
• Proficiency with test management tools (e.g., JIRA, TestRail) and automated testing frameworks.
• Experience in Agile or DevSecOps environment.
• Active Top Secret (TS/SCI) security clearance
• DoD 8140.03, IA Technician Level II certification (Security+ ce)

Inclusion & Diversity

DTSI is an Equal Opportunity Employer. Applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.

Disclosure

DTSI is an equal opportunity employer that uses E-Verify to confirm work authorization. Background investigations may be conducted to determine applicant's eligibility for a Department of Defense security clearance.

EEOC Know Your Rights

EEOC Know Your Rights

Why DTSI

DTSI has built an unwavering reputation of delivering cutting-edge IT solutions with a focus on exceeding customer expectations and a relentless drive to be the best in the industry. Our success, undoubtedly, is a direct result of our people. We are intentional in seeking individuals who are hard-working, disciplined, visionary, and approach all tasks and interactions with an attitude of excellence. If this is you, we invite you to join Team DTSI!

Benefits

• 401(k) Retirement Plan with Employer Contribution
• Paid Vacation Time
• Paid Federal Holidays
• Paid Sick Leave
• Health Insurance
• Dental & Vision Insurance
• Short and Long Term Disability
• Life Insurance
• Supplemental Insurance (Accidental, Hospital Confinement, Cancer Assistance, Critical Illness)
• Certification & Tuition Reimbursement