Cybersecurity Engineer

Infinity Systems Engineering; Colorado Springs (CO); On-site; USD 110,000 - 160,000; Full time

Benefits offered by this job

Health benefits

3 weeks vacation

Sick leave 48 hours

401(k) plan

Education reimbursement

Profit sharing

Professional training

Job summary

Infinity Systems Engineering seeks a Cyber Security Systems Engineer to support RMF compliance, threat assessment, and hardening of MILSATCOM ground and space systems. You will develop, implement, and document approaches to RMF requirements while collaborating with a skilled engineering team.

The role requires DoD 8140/8570 IAT II certification, 4–8 years in DISA STIGs, ACAS, and Trellix, and hands‑on Windows/Linux administration. U.S.

Qualifications

• DoD 8140 or 8570 IAT II certification (e.g., Security+ CE)
• 4–8 years with DISA STIGs and SCC benchmarks
• 4–8 years administering DISA ACAS
• 4–8 years with DISA Endpoint Security Solutions (Trellix)
• 4–8 years of secure config and hardening of DoD IS
• 4–8 years of hands-on Windows/Linux admin
• Experience RMF security controls
• Familiarity with NIST 800-30/37/53 and CNSSI 1253 overlays

Responsibilities

• Provide Cyber Systems Security Engineering expertise to MILSATCOM systems
• Maintain awareness of current and emerging cyber threats
• Assess cyber threats and their impact on systems
• Develop COAs to mitigate threats and prioritize risks
• Develop procedures to counter cyber threats and support mission
• Support recovery planning for system operation restoration
• Contribute to RMF artifact delivery and schedules
• Perform vulnerability scans and track results
• Support SAP and PPIP activities
• Assist with cyber meetings and technical coordination
• Implement intrusion detection and protection where applicable
• Maintain system baselines for security and compliance

Skills

Cybersecurity fundamentals

RMF/DoD security

DISA STIGs

Vulnerability assessment

Incident response

Education

Bachelor’s Degree in a relevant field

Tools

ACAS

Trellix

Splunk

Git/GitLab

Ansible IaC

Xylok STIG Tool

Job description

Infinity’s niche in the aerospace and defense industry is specialized solutions that help bridge the gap between space and ground. This is no small task, and we owe our success to our team who help us fulfill our mission; to match people with their legacies for betterment of the world. There is always a place at Infinity for a motivated, capable individual seeking a career to better the world. We prioritize supporting our team through exceptional benefits, work-life balance, and structured career development. At Infinity, WE ARE MORE – now, come be more with us.

Position Overview

We are seeking a Cyber Security Systems Engineer to join our professional engineering team. This position will support cybersecurity assessments and hardening of operational and support systems to decrease vulnerabilities and increase system and operational resilience. Develop, implement and documentation approaches to satisfy Risk Management Framework requirements.

Primary Responsibilities

• Provide Cyber Systems Security Engineering knowledge and expertise to the MILSATCOM systems to:
• Maintain awareness of current and emerging Cyber threats
• Analyze and assess Cyber threats and determine their impact on the systems
• Evaluate how the systems can mitigate Cyber threats and develop Courses of Action (COAs) to mitigate threats and prioritize risks
• Develop procedures to counter/mitigate Cyber threats to the Ground Systems, Space Vehicle, and payloads while maintaining the mission to the maximum extent possible
• Assist with the development of recovery plans to return the systems to operation
• Apply systems engineering and cyber expertise for the development and implementation of mission recovery support Tactics, Techniques, and Procedures (TTPs) in the event of Cyber incidents
• Assess software and hardware behaviors due to system modifications and any related expected system impacts
• Provide ‘Protected EHF SATCOM’ Cybersecurity Sustaining Engineering support by:
• Supporting and implementing intrusion detection solutions and/or systems into the Protected EHF SATCOM system baselines, including but not limited to:
• Host-based intrusion detection systems (HIDS)
• Intrusion protection systems (IPS), where not covered or inherited by DoD-provided defensive cyber operations (DCO)
• Provide System Security Engineering and Cybersecurity support and expertise by:
• Preparing, maintaining, and submitting the RMF-artifact delivery schedule (which includes identified RMF package delivery dates) as provided in the prime contractor format
• Capturing the status of submission frequency of identified RMF artifacts per system sustainment cybersecurity-related activities in accordance with the contract
• Performing network vulnerability scans in support of Government validation checks for CS systems
• Maintaining the approved Program Protection Implementation Plan (PPIP)
• Supporting Support Security Assessment Plans (SAP)
• Providing technical engineering and cyber support for all required cybersecurity technical meetings

Education Requirement

Bachelor’s Degree in a relevant field; experience will be considered in lieu of degree

Clearance Requirement

Secret clearance required, TS/SCI desired

Minimum Qualifications

• Must possess a DoD 8140 or 8570 IAT II Certification (e.g., Security+ CE, or higher)
• 4-8 years of experience with DISA STIGs, SCC (SCAP, Benchmarks)
• 4-8 years of experienceadministering DISA Assured Compliance Assessment Solution (ACAS)
• 4-8 years of experiencewith DISA Endpoint Security Solutions (Trellix) or legacy Host Based Security System
• 4-8 years of experiencewith secure configuration and hardening of DoD Information Systems
• 4-8 years of hands on experience administering configuring, trouble-shooting, and securing Windows Servers and/or RedHat Linux servers and workstations
• Experience with assessing and implementing Risk Management Framework (RMF) security controls
• Familiarity with NIST 800-30, NIST 800-37, NIST 800-53, CNSSI 1253 and associated overlays

Preferred Qualifications

• Hands on experience with implementing and tuning Splunk
• Hands on experience with implementing ClamAV
• Experience with Agile Development Lifecycle, including use of JIRA Project Management Tool
• Experience with Defense Counterintelligence and Security Agency Authorization packages
• Experience with Git source control and Gitlab CI/CD Pipelines
• Experience with Infrastructure as Code (IaC) (Ansible playbooks)
• Experience with Xylok STIG Automation Tool

Infinity Benefits

Company Culture. Infinity firmly believes that our success is due to the happiness and personal satisfaction of our employees.

Health Benefits. Infinity covers 100% of the monthly medical and dental premiums for you and your family.

Rest and Relaxation. Enjoy three weeks of vacation, with the flexibility to use vacation hours in advance before fully accrued.

Health and Wellness. In addition to vacation, we provide 48 hours of sick leave, plus Flex-Spending Account (FSA) options for medical and dependent care.

Prepare for the Future. Our 401(k) plan includes company contributions without requiring matching, along with access to free professional financial planning services.

Education and Professional Training Reimbursement. We invest in our team’s growth with our Education Reimbursement Program, supporting your career advancement.

Profit Sharing Plan. Our employees are key to our success, which is why all eligible team members receive an annual payout through our Profit-Sharing Plan.

And more!

Citizenship

U.S. Citizenship is required.

Application Deadline

This will be posted for a minimum of 30 business days or until a sufficient candidate pool has been collected. Job posting may come down early due to volume of applicants.