Sr. Embedded Systems Security Engineer (Onsite - Largo, FL) Secret Clearance required

Prattwhitney; Largo (FL); On-site; USD 86,800 - 165,200; Full time

Benefits offered by this job

Medical Insurance

Dental Insurance

Vision Insurance

Vacation 3 weeks

401(k) Matching

Tuition Reimbursement

Life Insurance

Disability Coverage

Parental Leave

Wellness Programs

Group Legal

E-Health Services

Job summary

RTX, located in Largo, FL, seeks a Senior Embedded System Security Engineer to join a defense-focused team onsite. You will support RMF ATO processes, analyze requirements, and help integrate security into system designs with engineers across disciplines.

Active DoD Secret clearance is required. The role emphasizes hands-on testing, security documentation, and staying current with evolving threats and industry best practices.

Qualifications

• Degree in a STEM discipline or advanced degree with minimum 3–5 years of relevant experience.
• Active, transferable Secret clearance and U.S. citizenship.
• Direct experience in System Security Engineering.
• Experience with RMF applied to mission systems in disconnected DoD environments.
• Experience with technical security concepts, technologies, and implementations.
• Technical writing skills and ability to develop security documentation.
• Experience interpreting system models, diagrams, and architectures to assess security risks.

Responsibilities

• Support system certification and accreditation efforts, including RMF Authorization to Operate (ATO) and NSA Type1 Cryptographic Certification.
• Support cybersecurity requirement decomposition, allocation, implementation, and verification using system engineering practices.
• Analyze system requirements, models, and diagrams to identify potential security vulnerabilities.
• Participate in system design discussions and provide security engineering input.
• Collaborate with systems engineers and developers to integrate security considerations into system design.
• Contribute to a culture of collaboration and continuous learning as part of a team.
• Maintain awareness of evolving security threats and industry best practices.
• Participate in Security-focused System Verification and Validation, including writing test plans and procedures, performing tests, and providing remediation recommendation analysis.

Skills

System security engineering

RMF / ATO

Technical writing

Security documentation

System models interpretation

Education

B.S./B.E. in STEM

Advanced degree

Tools

DOORS

JIRA

Confluence

Cameo MBSE

SCC

Nessus

ACAS

Evaluate-STIG

eMASSter

Job description

Senior Embedded System Security Engineer

Location: Largo, FL (Onsite – relocation assistance available)

Clearance required: Active, transferable DoD Secret clearance, U.S. citizenship required.

What You Will Do

• Support system certification and accreditation efforts, including Risk Management Framework (RMF) Authorization to Operate (ATO) and NSA Type1 Cryptographic Certification.
• Support cybersecurity requirement decomposition, allocation, implementation, and verification using system engineering practices.
• Analyze system requirements, models, and diagrams to identify potential security vulnerabilities.
• Participate in system design discussions and provide security engineering input.
• Collaborate with systems engineers and developers to integrate security considerations into system design.
• Contribute to a culture of collaboration and continuous learning as part of a team.
• Maintain awareness of evolving security threats and industry best practices.
• Participate in Security‑focused System Verification and Validation, including writing test plans and procedures, performing tests, and providing remediation recommendation analysis.

Qualifications You Must Have

• Degree in a STEM discipline or advanced degree with minimum 3–5 years of relevant experience.
• Active, transferable Secret clearance and U.S. citizenship.
• Direct experience in System Security Engineering.
• Experience with RMF applied to mission systems in disconnected DoD environments.
• Experience with technical security concepts, technologies, and implementations.
• Technical writing skills and ability to develop security documentation.
• Experience interpreting system models, diagrams, and architectures to assess security risks.

Preferred Qualifications

• Advanced security‑related certifications (e.g., CISSP, Security+).
• Electrical or Computer Engineering degree.
• Experience with NSA cryptographic certification, Cross‑Domain Solution (CDS) requirements, and NIAP.
• Experience with security protocols used in embedded systems and aerospace communications.
• Familiarity with DOORS, JIRA, Confluence, Cameo (MBSE), or other agile tools.
• Familiarity with DoD‑focused security assessment tools (e.g., SCC, Nmap, Evaluate‑STIG, Nessus, ACAS, Vulnerator, eMASSster).
• Analytical skills for deep‑dive evaluations of system requirements.
• Willingness to learn about satellite and communication systems and evolving security technologies.

Compensation and Benefits

• Salary range: $86,800 – $165,200 USD.
• Medical, dental, and vision insurance.
• Three weeks of vacation for new hires.
• 401(k) plan with employer matching and a lifetime income strategy.
• Tuition reimbursement and student‑loan repayment program.
• Life insurance, disability coverage, and optional supplemental coverages (pet, auto, home, accident, critical illness, ID theft protection).
• Parental leave and adoption assistance.
• Wellness incentives, virtual doctor visits, and health‑planning tools.
• Optional benefits: group legal, E‑Health services, child and elder care, etc.

Equal Opportunity

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, veteran status or other protected class. RTX provides affirmative action in employment for qualified individuals with a disability and protected veterans in compliance with applicable laws.