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Cyber Software Engineer with Security Clearance

Cornerstone Defense
Linthicum Heights, MD Full Time
POSTED ON 11/3/2026
AVAILABLE BEFORE 11/30/2026
Title: Cyber Software Engineer Location: Linthicum Heights, MD Compensation Range: $170 -$190K

  • Clearance:
  • Active TS/SCI w/ Polygraph needed to apply
  • Company Overview: Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation's toughest and most secure problems. If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don't look any further than Cornerstone Defense. Benefits Overview: Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans
  • Generous PTO Policy
  • 401(k)
  • HSA and FSA options
  • Life and Disability Insurance
  • Tuition Reimbursement and Training
  • Perks at Work Discount Program
  • Referral Program
  • Leads Generation Program
  • CollegeAmerica 529
  • Fitness Reimbursement Program
  • Travel Assistance
  • Norton Lifelock Benefit Solutions
  • Life Planning Financial & Legal Services
  • Position Required Skills
  • The ideal candidate will perform Software Engineering and vulnerability research with a focus on OCO (Offensive Cyber Operations) and DCO (Defensive Cyber Operations) activities.
  • Work with customers directly performing full cycle system engineering, gathering requirements and source code, to technical documentation and specifications.
  • Performing long-term, in-depth vulnerability assessments using reverse engineering, kernel debugging, and exploitation technologies.
  • Engineers are encouraged to be creative and exhaust every technical avenue to uncover weaknesses of the system and exploit them.
  • Performs software development tasks and assists in the design and architecture of software applications individually or as a team member
  • Develops production quality software based on pre-defined software requirements and designs
  • Reviews, analyzes, and modifies programming systems to include coding, testing, debugging, installing, and documenting to support organizations software applications
  • Implement software development process improvement activities in accordance with organizational procedures
  • Develop unit and integration tests and test plans for software applications and prepares software test reports
  • Write documentation for software and software interfaces Required Qualifications:
  • High School and Seven [7] years experience in software development technologies and methodologies.
  • Or BS in STEM field (Electrical/Computer/Software Engineering, Computer Science, Math or Information Systems) and Three (3) year of experience in software development technologies and methodologies.
  • C/C Software development skills
  • Experience in x86/x64 assembly, software reverse engineering, kernel debugging, and protocol stacks
  • Experience developing computer exploits Preferred Technical Skills
  • Experience developing computer exploits
  • Experience in Software Reverse Engineering with at least 1 of the following tool or an equivalent: IDAPro, GDB, WinDbg, Immunity/OllyDbg
  • Experience in malware analysis and mitigation techniques
  • Strong understanding of the Windows and Linux Operating System internals and APIs
  • Knowledge of analyzing shellcode, packed and obfuscated and the associated algorithms a plus
  • Experience with scripting languages such as Python, Bash, Pearl, etc
  • Experience in host and network analysis to identify and characterize anomalies and vulnerabilities in the platform
  • Experience documenting findings in reports and briefings

Salary : $170,000 - $190,000

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