Systems Security Cyber Engineer II - Contingent (Onsite - Aurora, CO) TS/SCI required

Collins Aerospace; Aurora (CO); On-site; USD 69,000 - 131,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Three weeks vacation

Generous 401(k) plan with matching

Tuition reimbursement

Employee assistance program

Job summary

Collins Aerospace, an RTX company, seeks a Cyber Engineer II for the Product Cybersecurity Organization in Aurora, CO. You will contribute to security design, RMF documentation, and DoD compliance while performing system-level security engineering for warfighter programs.

The role requires active TS/SCI clearance and onsite work. Travel up to 25% may be required as projects evolve in a dynamic defense environment.

Qualifications

• Requires STEM degree and 2+ years of relevant experience, or an advanced related degree.
• U.S. citizenship and TS/SCI clearance required prior to start date.
• DoD 8140.03 compliant certification (e.g., Security+, CISSP) required.
• Knowledge of RMF, A&A processes and cybersecurity controls.

Responsibilities

• Collaborate with cybersecurity architecture teams on designs.
• Develop RMF documents and controls validation testing for DoD ATOs.
• Maintain STIGs and migrate templates to updated formats.
• Coordinate with SMEs to complete STIG templates (network switches, DB, OS).
• Perform routine and ad-hoc scans using ACAS.
• Develop cybersecurity requirements and architecture artifacts, plans and policies.
• Domestic/international travel up to 25%.

Skills

Cybersecurity experience

RMF knowledge

Vulnerability scanning

DoD 8140.03 cert

Communication skills

Education

STEM degree

Advanced degree beneficial

Tools

Tenable Security Center

STIG Viewer

SCAP Tools

Job description

Date Posted:

2026-10-09

Country:

United States of America

Location:

US-CO-AURORA-S76 ~ 16430 E Hughes Dr ~ BLDG S76

Position Role Type:

Onsite

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

Active and transferable U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Security Clearance Type:

TS/SCI - Current

Security Clearance Status:

Active and existing security clearance required on day 1

THIS ROLE IS CONTINGENT: Employment is based on contract award and customer funding.

Raytheon Company, Managed by Collins Aerospace

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.

Join our highly visible team and perform technically challenging assignments, which willcloselycontributeto protecting our nation and our products. We are seeking aCyber Engineer II to function as a key contributor for the Product Cybersecurity Organization (PCO) team.

As a member of the High Band Mission Application Software (HBMAS) Systems Security Engineering (SSE) team, you will develop solutions to secure the Warfighter’s technical advantage. The SSE team creates comprehensive security solutions by leveraging multiple disciplines, including Anti-Tamper (AT), Software and Hardware Assurance, Cryptography, and Supply Chain Risk Management (SCRM), to implement robust program protection across diverse systems.

This role will be worked onsite in Aurora, CO and requires an active TS/SCI clearance. Relocation assistance is not available.

What You Will Do:

• Work with cybersecurity architecture
• Assist in the development of RMF documents and controls validation testing for DoD Authorizations to Operate (ATOs)
• Maintain the latest versions of all applicable Security Technical Implementation Guides (STIGs) by downloading updates from the DoD Cyber Exchange website and migrating existing checklists to the newest templates
• Coordinate with other Subject Matter Experts (SMEs) to complete the STIG templates, such as those for network switches, database, operating systems, etc.
• Perform routine and ad-hoc scans using the ACAS tool
• Supportthe development of cybersecurity requirements, design and architecture artifacts, plans, and policies.
• CONUS/OCONUS travel (up to 25%)

What You Will Learn:

• You will learn to be a more effective Systems Security Engineer and leader by gaining niche skills enabling you to be unique in all you do
• You will develop technical expertise to become a cybersecurity subject matter expert (SME), while gaining valuable exposure to diverse business models and product lines in a dynamic, ever-evolving field. We are growing and so can you!

Qualifications You Must Have:

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 2 years of prior relevant experience, or an Advanced Degree in a related field
• U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
• Active and transferable TS/SCI U.S. government issued security clearance is required prior to start date
• DoDM 8140.03 compliant certification (e.g., Security+, CISSP, or equivalent)
• Knowledge of Security Technical Implementation Guidance (STIG) and Risk Management Framework (RMF) as described in NIST Special Publication 800-37 and DoD Instruction 8510.01
• Knowledge of Systems Engineering requirements, specifications, and experience implementing DoD and Federal Assessment and Authorization (A&A) Processes and cybersecurity controls and developing and maintaining associated A&A documentation
• Experience with utilizing vulnerability scanning tools to include Tenable Security Center, STIG Viewer, SCAP Compliance Checker/Tools

Qualifications We Prefer:

• Familiarity with Linux Commands
• Familiarity with Containerization (e.g., Docker/Kubernetes)
• Familiarity with Cross Domain Solutions (CDS)
• Awareness of Program Protection Plans (PPP), DoDI 5000.02, and DoDI 5200.39
• Understanding of IT, network, and system security administration, including security configuration and account management best practices for Windows, UNIX, Red Hat Enterprise Linux, and Cisco Systems.
• Familiarity with information security toolsets, including anti-virus, vulnerability assessment, HIDS/NIDS, host-based and endpoint security, Multi-Factor Authentication (MFA), Security Information and Event Management (SIEM), and centralized auditing resources
• Written and verbal communications skills, with the ability to work independently

What We Offer:

Some of our competitive benefits package includes:

• Medical, dental, and vision insurance
• Three weeks of vacation for newly hired employees
• Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option
• Tuition reimbursement program
• Student Loan Repayment Program
• Life insurance and disability coverage
• Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance,critical illnessinsurance, group legal, ID theft protection
• Birth, adoption, parental leave benefits
• Carrot Health, fertility, and family planning
• Adoption Assistance
• Autism Benefit
• Employee Assistance Plan, including up to 10 free counseling sessions
• Healthy You Incentives, wellness rewards program
• Doctor on Demand, virtual doctor visits
• Bright Horizons, child and elder care services
• Teladoc Medical Experts, second opinion program
• And more!

Collins Aerospace, an RTX company, is a leader in technologically advanced and intelligent solutions for the global aerospace and defense industry. Collins Aerospace has the capabilities, comprehensive portfolio, and expertise to solve customers’ toughest challenges and to meet the demands of a rapidly evolving global market.

Collins Aerospace makes modern flight possible. Of course, that wouldn’t be possible without the capabilities and technologies of our organization, as well as our engineers – a highly skilled, accomplished network that spans more than 180 sites, 24 countries and 6 Strategic Business Units (SBUs).

Our industry-leading experts are setting the standards for the aerospace industry and paving the way for the future. But as new challenges present themselves, we need fresh, creative and motivated minds to overcome these hurdles, help us break barriers and achieve new levels of innovation. Do you have what it takes to join a global organization that doesn’t shy away from big opportunities? If so, we invite you to join our ranks and create the next generation of aerospace technologies.

Together, we will nurture an engineering culture that values intellectual curiosity, risk takers and integrity. A place where we will challenge ourselves, our teams, and the status quo and where we will work to find a way – the right way – to achieve what others can only dream of.

*Please ensure the role type (defined below) is appropriate for your needs before applying to this role. This position is classified as:

Onsite:

Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attendselect 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 68,900 USD - 131,100 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.