Senior Systems Security Engineer — Onsite (Secret Clearance)

globalhr; Cedar Rapids (IA); On-site; USD 87,000 - 165,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Three weeks vacation

401(k) with matching

Tuition reimbursement

Job summary

Collins Aerospace, a key RTX company, is seeking a Senior Systems Security Engineer for onsite work in Cedar Rapids, IA. The role focuses on securing products through SSDLC, threat modeling, and defense-grade testing, requiring active or ability to obtain a SECRET clearance and U.S. citizenship.

The candidate will engage with security tools, mentor teammates, and contribute to RMF compliance while supporting a global aerospace missions. Relocation assistance may be available.

Qualifications

• Degree in STEM with 5+ years of relevant experience, or advanced degree with 3+ years of experience.
• U.S. citizenship is required for security clearance eligibility.
• Experience in product security or secure system design, including threat modeling or fuzzing/penetration testing.
• Embedded software engineering knowledge (Python and Java/C/C++).

Responsibilities

• Analyze data flows to identify attack vectors across products.
• Develop threat models and data-flow diagrams for proper data isolation.
• Ensure security measures are implemented during product development.
• Develop and deploy tools to identify product security flaws.
• Mentor junior product security engineers and advance their skills.
• Follow MIL RMF security processes and SSDLC guidelines.

Skills

Threat modeling

Fuzzing

Embedded software

Python

Java/C/C++

Education

STEM degree

Tools

PKI

SAST tools

Penetration testing tools

RMF processes

Job description

Collins Aerospace, a key RTX company, is seeking a Senior Systems Security Engineer for onsite work in Cedar Rapids, IA. The role focuses on securing products through SSDLC, threat modeling, and defense-grade testing, requiring active or ability to obtain a SECRET clearance and U.S. citizenship.

The candidate will engage with security tools, mentor teammates, and contribute to RMF compliance while supporting a global aerospace missions. Relocation assistance may be available.