Cybersecurity Engineer

To be considered for this role, you must be a US Citizen with a US government security clearance. Additionally, you must either live near or be willing to move to the Boulder, CO area.

About Centil

Centil , a Sabel Systems company, is a mission-focused engineering team supporting some of the highest-priority space defense programs in the U.S. Space Force portfolio, including missile defense and missile warning systems for Space Systems Command. Our work spans DevSecOps, CI/CD product development, and space-domain systems engineering, and our people are embedded directly in the programs they support.

In January 2026, Sabel Systems acquired Centil to expand its Advanced Engineering Services capabilities. For our team, that means access to a broader portfolio of programs, deeper corporate resources, and new career pathways - while preserving the technical ownership and small-team culture that defines how we work. It's an exciting time to join Centil: we're growing, the mission portfolio is expanding, and we're building the team that will define what comes next. If you are interested in learning more about Centil or our team, check out our website at

About the role

The Cybersecurity Engineer we hire for this role will work to identify and mitigate cybersecurity vulnerabilities for a ground system for a new United States Space Force (USSF) satellite constellation. This person will work with the program's engineering team to architect, develop and sell-off products to a government customer. Work will include configuration development, Security Technical Implementation Guide (STIG) compliance and testing, and delivery of a secure environment for Overhead Persistent Infrared (OPIR) mission operations. Ideally, this candidate has experience in Risk Management Framework (RMF). We consider experience with OPIR missions to be a significant bonus for this role.

Please note: this role is required to be onsite in Boulder.

What you'll do

Key responsibilities for the Cybersecurity Engineer include:

• Develop Cyber Plans and Procedures for an environment that consists of, amongst other technologies, Containerized Software Applications, Juniper network devices, Red Hat Linux, Red Hat Identity Manager, Jenkins, IBM AIX, iSCSI Storage, VSAN, ESXi, AND VMWare
• Work with Systems Engineers to develop solutions that manage cybersecurity risks within systems
• Look for opportunities to automate cyber workflows through Ansible, Python, and Bash scripting
• Maintain Cybersecurity tools, development, and code repositories in gitlab
• Perform cybersecurity scans, analyze results and harden systems
• Generate documentation required to achieve approval to operate systems
• Serve as a key member of the test team by leading cyber test events, conducting technical security assessments, and coordinating directly with customers and ASCA stakeholders throughout test execution
• Interface with the customer, leveraging strong interpersonal skills and attention to detail
• Deliver regular demonstrations and presentations to customers on cybersecurity processes, tools, and automation techniques

Required Qualifications

• Must hold DoD Secret Clearance, at minimum
• Bachelor of Science degree in Engineering, Mathematics, Physical Sciences, Computer Science (Relevant experience will be considered in lieu of education)
• Minimum of five (5) years of experience in CyberSecurity Engineering
• Experience with cyber tools, including ACAS and HBSS
• Strong understanding of Cybersecurity frameworks and standards
• Experience running DISA SCAP Scan and working with DISA STIGs for operating systems, network devices, and other infrastructure related services (LDAP, AD, ESXi, Virtual Machines)
• Ability to work with system and security SMEs to harden and mitigate vulnerabilities identified by cyber tools
• Experience with incident response and management
• Ability to communicate technical information via oral presentation and written format
• Strong focus on internal and external customer success
• Ability to work full time onsite in Boulder

Preferred/Bonus Qualifications

• Possess CompTIA Security+ and CISSP or similar certifications
• Cybersecurity engineering experience with embedded systems development for DoD
• Understanding of networking fundamentals, programming languages, and operating systems
• Familiar with Risk Management Framework (RMF)
• Understanding of ethical hacking and penetration
• Experience working within an agile workflow
• Experience with Jira and Confluence
• Experience with Overhead Persistent Infrared (OPIR)
• Automate system processes through the development and maintenance of custom Ansible playbooks and scripts

Other Company Requirements

In addition to job-specific requirements, Centil believes it is important for all employees to possess the following skills/characteristics:

• Strong communication (written and verbal) and presentation skills. Ability to passionately deliver high-level messaging to various types of audiences-this will eventually include senior leaders. Ability to explain technical concepts clearly to non-technical personnel
• Self-motivated individual who actively and independently seeks out opportunities for learning and development
• Collaborates well; enjoys working as part of a team
• DoD Secret or higher clearance is preferred. All applicants must be US citizens eligible for a US Government security clearance

Expected Salary Range

Depending on experience and skillset, most candidates will earn between $120,000 and $160,000 per year.

Please note that the salary range is a general guideline only. We consider many factors when determining salaries including, but are not limited to, scope and responsibilities of the position, candidate's work experience, education, training, certifications, key skills, and mission/customer familiarity. We combine these factors with market and business considerations to extend a job offer.

Benefits

Centil offers a comprehensive benefits package including the following:

• Generous PTO for vacation, personal, or sick days
• Ten (10) paid holidays per year: 8 fixed holidays, plus 2 additional Floating Holidays per year (taken at Employee's discretion)
• Flex time and the ability to create your own schedule
• Discretionary bi-annual bonus plan, based on individual and company performance
• 401K retirement plan with immediately vested company contributions, no matching required
• Healthcare coverage plan through an Individual Coverage Health Reimbursement Arrangement (ICHRA)
• Employer-paid Life, Long-Term Disability, and Accidental Death and Dismemberment insurances
• Access to optional, employee-paid Life, Accident, Critical Illness, and Hospital Indemnity insurances
• Access to a Dependent Care Flexible Spending Account (FSA)
• Paid training and conference attendance
• Additional benefits, as needed, for significant life events: parental leave, bereavement leave, jury duty pay, military leave pay
• One-time home office reimbursement
• Phone plan reimbursement
• Employee Assistance Program (EAP) services, supporting emotional health and well-being of employees and their families

Centil is an Equal Opportunity Employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability, protected veteran status or any other status protected by applicable law.