Secure Systems Engineer I (Onsite)

Collins Aerospace; Cedar Rapids (IA); On-site; USD 57,000 - 109,000; Full time

Benefits offered by this job

Relocation Eligible

Job summary

RTX's Cybersecurity Engineering team in Cedar Rapids is seeking a Secure Systems Engineer I to join a shared services group supporting product security across the Avionics SBUs. You will develop threat models and information flow diagrams, implement MAC via SELinux, and run fuzzing to assess attack surfaces.

Embed with development teams, review code for security weaknesses, conduct vulnerability assessments, and help create security documentation for Airworthiness Certification.

Qualifications

• Requires a degree in Science, Technology, Engineering or Mathematics (STEM).
• Coding experience in C++ or Python.
• Familiarity with Linux OS.

Responsibilities

• Develop threat models and data flow diagrams to ensure data isolation.
• Embed with development teams to address product security concerns.
• Develop and execute fuzzing and robustness tests to evaluate attack surface.
• Conduct vulnerability assessments of proposed and in-service systems.
• Assist with creation of security documentation to support Airworthiness Certification.

Skills

C++

Python

Linux

Education

STEM degree

Job description

Location

US-IA-CEDAR RAPIDS-121 ~ 350 Collins Rd NE ~ BLDG 121

Date Posted

2026-10-21

Country

United States of America

Location

US-IA-CEDAR RAPIDS-121 ~ 350 Collins Rd NE ~ BLDG 121

Position Role Type

Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements

U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract.

Security Clearance Type

None/Not Required

Security Clearance Status

Not Required

Are you ready to explore the world of aerospace and defense? Do you want to learn from and collaborate with some of the greatest minds in the industry? At RTX, our internships, co-ops and full-time careers provide an exceptional foundation to work on complex problems, advance your skills and create a safer, more connected world. Discover opportunities to make a difference at RTX.

What You Will Do

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.

Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense.

The Cybersecurity Engineering team needs an additional Secure Systems Engineer I. The Cybersecurity Engineering team is a shared services team that supports the development of products throughout the Avionics Strategic Business Unit wherever the customer has security requirements, or the system is exposed to cyber threats by it’s connectivity or operational use. We develop tools and testing techniques to highlight residual defects in product design or implementation. These defects can lead to vulnerabilities that negatively impact the confidentiality, integrity, or availability of a system. Members of the security engineering team pursue security excellence by embedding with the design and implementation teams as subject matter experts supporting our Secure System Development Life Cycle (SSDLC).

Supporting this Cyber Security Engineering team’s mission involves: developing threat models and information flow architectures to ensure data can be properly isolated in motion and while at rest, implementing mandatory access controls (MAC) through the development of Security Enhanced Linux (SELinux) policies, developing and executing fuzzing and penetration tests to evaluate the robustness of the exposed attack surface, reviewing code to identify weaknesses in the implementation of security functions, and conducting vulnerabilities assessments of proposed and in-service systems.

• Developing and executing fuzzing and robustness tests to evaluate a products attack surface
• Conducting vulnerability assessments of proposed and in-service systems
• Embedding with development teams to address product security concerns
• Developing threat model / data flow diagrams to ensure data can be properly isolated in motion and at rest
• Assisting w/ implementing mandatory access controls (MAC) through the development of SELinux policies
• Assisting with creation of security documentation to support Airworthiness Certification

Qualifications You Must Have

• Requires a degree in Science, Technology, Engineering or Mathematics (STEM).
• Coding experience in C++ or Python
• Familiarity with Linux OS

Qualifications We Prefer

• Strong problem-solving and analytical skills with a demonstrated passion for the field.
• Completed coursework or personal projects focusing on embedded systems security.
• Experience with embedded system integration and testing.
• Understanding of IP networking architectures and concepts.
• Knowledge of version control systems (e.g., Git).
• Proficiency in the Microsoft Office Tool Suite.

What We Offer

• Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Trust, Respect, Accountability, Collaboration, and Innovation.
• Relocation Eligible

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

The salary range for this role is 57,200 USD - 108,800 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.

Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.

Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.

This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.

RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

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, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.