Information Systems Security Engineer
Reston, VA
TS/SCI with Polygraph Overview: We are seeking a highly skilled
Information Systems Security Engineer (ISSE) to join our team. In this role, you will design, implement, and maintain enterprise security solutions to protect mission-critical systems, networks, and data. You will collaborate with cross-functional teams to ensure compliance with government security standards while proactively addressing vulnerabilities and threats.
Company Benefits: Cornerstone Defense offers a comprehensive list of benefits, designed to give employees and their families several options to choose from when selecting benefits that best fit their needs. These offerings include not only a full suite of the traditional Medical/Dental/Vision insurances, but also a number of other benefits and perks to include, but not limited to: A 401(K) plan with a company match, tuition and training assistances, paid vacation/leave, a fitness reimbursement program, college savings plan, commuter benefits, financial advisory services, flex spending accounts, health savings accounts, STD/LTD coverage, life and AD&D insurance, employee assistance programs, life financial planning assistance, and legal resources.
Key Responsibilities - Design, deploy, and manage security solutions including firewalls, IDS/IPS, endpoint protection, and encryption mechanisms.
- Conduct regular security assessments to identify and remediate weaknesses in systems, networks, and applications.
- Develop and implement incident response plans; investigate anomalies and breaches, and take swift action to mitigate risks.
- Collaborate with IT, development, and compliance teams to establish security policies, procedures, and best practices aligned with frameworks such as NIST SP 800-53, RMF, ICD 503, FISMA, and FedRAMP.
- Monitor network traffic, system logs, and alerts to detect potential threats; utilize tools like Splunk for log aggregation and analysis.
- Integrate security controls into all phases of system and software development, including cloud, containerized, and DevSecOps environments (IL5-IL6+).
- Maintain detailed documentation of security configurations, processes, and incident reports.
Required Qualifications - Education: Bachelor's degree in Computer Science, Information Security, or related field
- Experience: 7+ years in cybersecurity engineering, including:
- Designing and implementing security controls
- Continuous monitoring and compliance auditing
- Cloud and DevSecOps security (IL5-IL6+)
- Log management and analysis (Splunk)
Technical Skills: - Government security frameworks (NIST SP 800-53, RMF, ICD 503, FISMA, FedRAMP)
- Incident response, forensic analysis, and security incident handling
- Familiarity with tools such as Fortify, Acunetix, and Prisma Cloud
- Certifications: CISSP or equivalent (DoD 8140 compliant)
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