Principal Crypto Embedded Software Engineer; Onsite

Principal Crypto Embedded Software Engineer (Onsite)

Collins Aerospace, an RTX company, seeks an experienced Crypto Embedded Software Engineer for the Secure Processing Software team in El Segundo, California. This onsite role requires a U.S. citizen and a transferable Secret clearance.

• Architecture, design, development, integration, and testing of embedded software for a network security appliance, including device management software, communication protocols, device drivers, and control‑plane security features.
• Collaborate with software engineers to ensure implementations meet product requirements.
• Socialize designs and integrate feedback; unit‑test components for module functionality and data consistency.
• Participate in design and implementation/code reviews.
• Document designs and create project documentation in support of contract deliverables (development plans, specifications, test docs).
• Independently manage time and prioritize tasks to meet cost and schedule constraints.

• Proven experience in large, complex software/hardware development.
• STEM degree with minimum 8 years relevant experience or an advanced degree with 5 years experience.
• Active Secret U.S. government‑issued clearance prior to start.

• Experience with high‑level programming languages (Rust, C/C++, Python) and hardware‑software integration in real‑time embedded systems.
• Crypto algorithm experience.
• Knowledge of network security protocols (TLS, SSL, OpenSSL, X.509, etc.).
• Experience with Key Management Infrastructure (KMI‑3300) and OTNK, and SysML/UML modeling tools.
• Control‑plane implementation for Ethernet‑based network appliances.
• Experience developing in Amazon Web Service virtual environments.

• Medical, dental, and vision insurance.
• Three weeks of vacation for newly hired employees.
• Generous 401(k) plan with employer match and separate retirement contribution.
• Tuition reimbursement program.
• Student loan repayment program.
• Life insurance and disability coverage.
• Optional additional coverages (pet, home and auto, life and accident, critical illness, group legal,  protection).
• Birth, adoption, parental leave benefits.
• Ovia Health, fertility, and family planning.
• Adoption assistance.
• Autism benefit.
• Employee assistance plan with up to 10 free counseling sessions.
• Healthy You incentives, wellness rewards.
• Doctor on Demand virtual visits.
• Bright Horizons child and elder care services.
• Teladoc Medical Experts second‑opinion program.
• Relocation assistance.
• And more.

Role type:
Onsite – Employees working onsite will primarily be based at El Segundo, CA. This position is U.S.‑based. Salary range: $112,000 – $224,000 USD.

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status.

Apply now and join Collins Aerospace’s mission to deliver secure communications and systems worldwide.