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General information

Requisition #
R66922
Locations
USA-TX-San Antonio
Posting Date
04/06/2026
Security Clearance Required
Secret
Remote Type
Onsite
Time Type
Full time

Description & Requirements

Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we’ve been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now—unleash your potential with MANTECH!

MANTECH seeks a motivated, career and customer-oriented Senior CNO Vulnerability Researcher to join our team in San Antonio, TX. In this role, you will lead and execute advanced vulnerability research initiatives while collaborating with highly skilled cyber professionals to deliver impactful mission outcomes.

Responsibilities include, but are not limited to:

  • Researching and discovering software vulnerabilities across diverse platforms and environments
  • Reverse engineering software to identify security weaknesses and develop security mechanism bypasses
  • Performing as a team lead on projects when suitable, providing technical direction and mentorship
  • Designing, developing, documenting, and debugging user land and kernel software and systems
  • Researching and maintaining proficiency in tools, techniques, countermeasures, and trends in computer network vulnerabilities, static and dynamic program analysis, network security, and encryption
  • Communicating status, findings, and technical risks with leadership and customers
     

Minimum Qualifications:
 

  • BS degree and and 5+ years of relevant experience, or High School Diploma and 7+ years of relevant experience
  • Experience in vulnerability research
  • Experience in reverse engineering and common security research tools (e.g., IDA Pro, Ghidra, Radare, Binary Ninja, SysInternals, GDB, WinDBG)
  • Experience in Python, C/C++, and Assembly (x86/x64) programming
  • Experience with CNO capability development
  • Experience with low-level internals in one or more technology areas (e.g., Windows, Linux, Mobile)
  • Experience with troubleshooting and debugging
     

Preferred Qualifications:
 

  • Experience developing fuzzers and static analysis tools
  • Experience with modern security system features
  • Experience using Atlassian products (JIRA, Confluence, Crucible)
  • Experience applying Agile Scrum methodologies
  • Experience mentoring junior vulnerability researchers
     

Security Clearance Requirements:

  • Must have an active/current Secret clearance
     

Physical Requirements:

  • Must be able to remain in a stationary position 50% of the time


MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.

If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.