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# Information Systems Security Engineer (ISSE) - FULLY CLEARED wit

- **Company:** Constellation Technologies, Inc.
- **Location:** Annapolis Junction, MD, United States
- **Experience:** Expert
- **Salary:** $140,000.0 - $265,000.0
- **Contract:** Permanent contract
- **Skills:** Software System Penetration Testing, Systems Engineering, User Authentication, Communications Protocols, Cyber Security, Information Systems Security Engineering Professional, Nmap, Public Key Infrastructure, Systems Development Life Cycle, Software Engineering, Wireshark, Web Services, Scripting, Software Security, Information Technology, Nessus, Server Operating Systems & Platforms
- **Published:** October 5, 2026
- **Apply:** https://www.clearancejobs.com/jobs/8871461/information-systems-security-engineer-isse-fully-cleared-wit

## About the Role

* Must be a US Citizen
 * Must have TS/SCI clearance w/ active polygraph
 * Bachelor's degree in Computer Science, Information Assurance, Information Security System Engineering, or a related discipline.
 * Must have twelve (12) years of experience working as an ISSE on a large technical program.
 * Must have a solid understanding of security practices and policies and hands-on vulnerability testing experience using Customer tools.
 * Must have experience applying Risk Management Framework.
 * Must have experience formulating and assessing IT security policy.
 * Must have demonstrated knowledge of and experience with common security tools, such as Nessus, NMAP and Wireshark hardware/software security implementation, communication protocol, encryption techniques/tools, and web services.
 * Must have experience with secure configurations of commonly used desktop and server operating systems.
 * Must be comfortable working on multiple systems and components simultaneously in various configurations.
 * Must have strong verbal and written communications skills.
 * Must be committed to adopting and adhering to best practices.
 * Must be able to effectively plan and prioritize tasking and communicate clearly regarding technical options and trade-offs.
 * Must be capable of performing high quality work both independently and with a team in a fast-moving environment., * Bachelor's degree in Computer Science, Information Assurance, Information Security System Engineering, or a related discipline.
 * Five (05) years of experience with Defense in Depth Principals/technology (including access control, authorization, identification and authentication, public key infrastructure, network and enterprise security architecture) and applying risk assessment methodology to system development.
 * DoD 8570 compliance with IASAE Level 2 or 3.
 * Information Systems Security Engineering Professional (ISSEP) Certification.
 * Computer Information Systems Security Professional (CISSP) Certification.
 * Experience developing/implementing integrated security services management processes, such as assessing and auditing network penetration testing, anti-virus planning assistance, risk analysis, and incident response.
 * Experience providing information assurance support for application development that includes system security certifications and project evaluations for firewalls that encompass the development, design, and implementation.
 * Experience with penetration testing tools.
 * Experience with scripting languages.