Space Systems ISSE: RMF‑Driven Security Engineer

Foundation Capital; Arvada (CO); On-site; USD 110,000 - 150,000; Full time

Benefits offered by this job

100% company-paid medical, dental, and

Vision insurance

Life and disability coverage

Flexible time off

401(k) and equity

Daily catered lunches

Parental leave

Relocation assistance

Job summary

Loft Federal is seeking an Information Systems Security Engineer (ISSE) to help design and secure the systems powering national security space missions. You will partner with software, systems, infrastructure, and mission engineers to integrate cybersecurity throughout the system lifecycle—from architecture and implementation through authorization and continuous monitoring.

This role combines hands-on security engineering with RMF execution, ensuring our systems meet government security

Qualifications

• Bachelor's degree in a technical field and 5+ years of ISSE/cybersecurity engineering experience.
• Experience implementing RMF and NIST SP 800-53 security controls.
• Experience developing RMF artifacts and supporting Authority to Operate (ATO).
• Familiarity with Windows and Linux system hardening and vulnerability management.
• Strong communication and collaboration skills; active TS clearance or TS/SCI eligibility.

Responsibilities

• Embed cybersecurity into space and ground system design and development.
• Develop secure architectures and implement security controls per RMF/NIST.
• Work with engineering teams to identify, assess, and remediate vulnerabilities.
• Support system hardening, vulnerability management, and continuous monitoring.
• Perform security architecture reviews, threat modeling, and risk assessments.
• Collaborate with DevSecOps to integrate security into CI/CD pipelines.
• Coordinate with government customers, ISSMs, and program teams to maintain compliant systems.

Skills

Information security

Cybersecurity

RMF

NIST SP 800-53

Windows

Linux

Communication

Collaboration

Security architecture

DevSecOps

Education

Bachelor's degree in Cybersecurity, Computer Science, Engineering, or related technical field

Tools

ACAS

Nessus

DISA STIGs

Kubernetes

Job description

About Loft Federal

Loft Federal is committed to delivering theU.S. national security space communityafast, affordable, and streamlinedpathway to orbit. As awholly owned U.S. subsidiaryof Loft Orbital Solutions, Inc., we specialize in providing mission-ready space infrastructure with unmatched efficiency.

At Loft, we empower our team withautonomy, ownership, and bold problem-solving opportunitieswhile fostering atight-knit, supportive environment. We believe thatdiversity, inclusivity, and communityare the foundation of an open and innovative culture. We valuekind, collaborative, and mission-driven teammateswho excel inproblem-solving and communication—because great solutions come from great teams.

Are you ready to embark on this exciting journey with us?

Loft Federal is seeking an Information Systems Security Engineer (ISSE) to help design and secure the systems that power our national security space missions. You'll partner with software, systems, infrastructure, and mission engineers to integrate cybersecurity throughout the system lifecycle—from architecture and implementation through authorization and continuous monitoring.

This role combines hands-on security engineering with RMF execution, ensuring our systems meet government security requirements while enabling rapid mission delivery.

What You'll Do

• Embed cybersecurity into the design and development of space and ground systems.
• Develop secure system architectures and implement security controls aligned with NIST RMF and DoD requirements.
• Partner with engineering teams to identify, assess, and remediate security vulnerabilities.
• Support system hardening, vulnerability management, and continuous monitoring.
• Conduct security architecture reviews, threat modeling, and risk assessments.
• Collaborate with DevSecOps teams to integrate security into automated development pipelines.
• Work closely with government customers, ISSMs, and program teams to maintain compliant, mission-ready systems.

Must Haves

• Bachelor's degree in Cybersecurity, Computer Science, Engineering, or a related technical field.
• 5+ years of Information Systems Security Engineering or cybersecurity engineering experience.
• Experience implementing the DoD Risk Management Framework (RMF) and NIST SP 800-53 security controls.
• Experience developing RMF artifacts and supporting Authority to Operate (ATO) efforts.
• Familiarity with Windows and Linux administration, system hardening, and vulnerability management.
• Strong understanding of secure system architecture and cybersecurity best practices.
• Excellent communication and collaboration skills.
• Active Top Secret security clearance; TS/SCI eligibility preferred.

Nice to Haves

• Experience supporting DoD, Intelligence Community, or national security space programs.
• Knowledge of cloud security, Kubernetes, containers, or DevSecOps.
• Experience with ACAS, Nessus, DISA STIGs, or other security assessment tools.
• Familiarity with Zero Trust Architecture.
• CISSP, ISSEP, CAP, Security+, or similar cybersecurity certifications.

Some of Our Awesome Benefits:

• 100% company-paid medical, dental, and vision insurance option for employees and dependents
• Flexible Spending (FSA) and Health Savings (HSA) Accounts offered with an employer contribution to the HSA
• 100% employer paid Life, AD&D, Short-Term, and Long-Term Disability insurance
• Flexible Time Off policy for vacation and sick leave, and 12 paid holidays
• 401(k) plan and equity options
• Daily catered lunches and snacks in office
• Fully paid parental leave; 14 weeks for birthing parent and 10 weeks for non-birthing parent
• Carrot Fertility provides comprehensive, inclusive fertility healthcare and family-forming benefits with financial support
• Off-sites and many social events and celebrations
• Relocation assistance when applicable

Per Colorado law, we are required to disclose the base compensation range for this role. This range is intentionally wide as we assess individuals based on their unique abilities and experience to find the best fit for our needs. Ultimately, your compensation will be determined by your education, experience, knowledge, skills, and abilities.

In addition to a competitive salary and benefits package, you will find a truly remarkable culture guided by transparency and collaboration and work that is challenging and meaningful. We can't wait to meet you and see what you may add to our team!

Salary Range

$110,000—$150,000 USD

Equal Employment Opportunity & Affirmative Action

Loft Federal is an Equal Employment Opportunity and Affirmative Action Employer. We consider all qualified applicants for employment without regard to race, color, age, religion, sex, gender identity or expression, sexual orientation, marital status, national origin, ancestry, veteran status, genetic information, disability, pregnancy, or any other legally protected status.

Accessibility & Accommodations

If you require a reasonable accommodation due to a disability when applying for an open position, please contact us at [e-mail] for assistance.

We Hire for Talent, Not Just Resumes

Research shows that while men apply for jobs when they meet about60% of the qualifications, women and other underrepresented groups tend to apply only when they meet100% of the listed criteria. At Loft Federal, wevalue diverse perspectives, respectful debate, and people who challenge assumptions. If you’re excited about a role but don’t meet every requirement, we strongly encourage you to apply.

Third-Party Recruiters & Agencies

No outside recruiters, please. Loft Federal does not accept unsolicited resumes from headhunters, staffing agencies, or third-party recruiters. We will not pay fees for candidates submitted without a signed agreement in place.