Senior Cyber Systems Security Engineer

• Location: Colorado Springs
• Type: Contract
• Job #3706

Job Title: Cyber Systems Security Engineer
Job Location: Colorado Springs
Clearance: TS/SCI
Compensation Range: $140K - $160K

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.

Program Overview:
We are seeking a Cyber Systems Security Engineer (CSSE) to support a MILSATCOM program. This position plays a critical role in protecting space and ground assets from cyber threats and ensuring mission continuity through proactive cybersecurity engineering, monitoring, and risk mitigation.
This role involves a blend of systems engineering, cyber threat analysis, vulnerability remediation, and compliance support. You will operate in a highly secure, mission-critical DoD environment with direct involvement in the cyber defense of national space communication systems.

Job Responsibilities:

• Maintain continuous awareness of current and emerging cyber threats relevant to space and ground systems.
• Analyze threat intelligence to assess potential system impacts and recommend mitigation strategies.
• Develop and recommend Courses of Action (COAs) to address and prioritize cybersecurity risks.
• Create and maintain cyber incident response and mission recovery procedures.
• Support the development of Tactics, Techniques, and Procedures (TTPs) for cyber event response and mission continuity.
• Support the integration and operation of intrusion detection/protection systems (HIDS, NIDS, IPS) within MILSATCOM environments.
• Analyze and report data from tools such as DISA Endpoint Security Solution (ESS) and ACAS.
• Serve as the operational point of contact for the cybersecurity tool suite (Cybersecurity Subsystem - CSS).
• Administer access and monitoring for CSS tools such as Splunk, ACAS, and ESS.
• Conduct Tier 1 troubleshooting of cybersecurity tools and services.
• Prepare and maintain RMF artifact delivery schedules and submission tracking.
• Develop and update system documentation, including hardware/software baselines, PPSM, and network diagrams.
• Coordinate directly with Information System Security Officers (ISSOs) and ISSMs to ensure RMF compliance.
• Perform network vulnerability scans, analyze findings, and prioritize remediation efforts.
• Execute STIG scanning and baseline hardening activities across operating systems and applications.
• Deliver fully tested vulnerability patches and virus signature updates on a regular and emergency basis, with Government approval.
• Support creation and updates of Security Assessment Plans (SAPs) and related artifacts.
• Provide cybersecurity engineering expertise in technical meetings and working groups.
• Collaborate with government personnel and other engineering teams to support ongoing system sustainment and cybersecurity posture improvements.

Required Skills:

• Minimum 7+ years of experience in cybersecurity engineering, preferably supporting DoD or space-related systems
• Experience with RMF, DISA STIGs, and system accreditation processes
• Proficiency with vulnerability management tools such as ACAS, Splunk, and ESS
• Experience with network and host-based intrusion detection/prevention systems (HIDS/NIDS/IPS)
• Strong knowledge of DoD cybersecurity frameworks and best practices
• Bachelor's degree in Computer Science, Information Systems, Engineering, or a related technical field (or equivalent experience)

Preferred Qualifications:

• CISSP, CASP+, or CEH certification
• Familiarity with satellite communications (SATCOM) systems and mission ground segments
• Experience supporting MILSATCOM or other protected tactical communications systems
• Knowledge of Agile and DevSecOps methodologies
• Familiarity with scripting languages (PowerShell, Python, etc.)

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.