Space Systems ISSE — RMF-Driven Security Engineer

Loft Orbital Solutions; Arvada (CO); On-site; USD 110,000 - 150,000; Full time

Benefits offered by this job

Medical, dental, vision insurance

HSA/FSA contributions

Life, AD&D, disability insurance

Paid holidays

401(k) with equity options

Daily catered lunches

Relocation assistance

Job summary

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

This role combines hands-on security engineering with RMF execution to meet DoD security requirements while enabling rapid mission delivery.

Qualifications

• 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 RMF and NIST SP 800-53 security controls.
• Experience developing RMF artifacts and supporting 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.

Responsibilities

• Embed cybersecurity into the design and development of space and ground systems.
• Develop secure system architectures and implement security controls aligned with RMF/NIST 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.

Skills

Security engineering

RMF knowledge

Communication

Vulnerability management

System hardening

Windows/Linux admin

Education

Bachelor’s degree

Tools

ACAS

Nessus

DISA STIGs

Job description

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

This role combines hands-on security engineering with RMF execution to meet DoD security requirements while enabling rapid mission delivery.