Sr. Principal Reverse Engineer

Date Posted:

2026-04-09

Country:

United States of America

Location:

US-CA-ANAHEIM-406 ~ 160 N Riverview Dr ~ BLDG 406, Ste 150

Position Role Type:

Onsite

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

The ability to obtain and maintain a U.S. government issued security clearance is required.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Security Clearance Type:

TS/SCI with Polygraph

Security Clearance Status:

Active and existing security clearance required after day 1

Raytheon Company Managed by Collins Aerospace.

This role is primarily On-Site, with flexibility at hiring manager discretion.

Applied Signal Technology (AST) is seeking a Senior Principal Reverse Systems Engineer who strives for excellence and has a passion to be part of a team that strengthens our nation and improves the security of our world.   AST provides trusted strategic and tactical SIGINT solutions that secure the interests of the U.S. and its partners.  AST’s work in areas such as high-capacity broadband communications, signal processing and analysis, tactical SIGINT, and wireless communications continually challenges our extraordinary engineers to resolve problems and make the world a safer place.  AST’s work environment is dynamic, highly collaborative and provides engineers the freedom to strengthen and expand their skills, explore new and creative ideas, and work closely with our nation’s finest service members all while embracing integrity, innovation and work-life balance.

This is an ONSITE position at our Anaheim Hills, CA location.  To find out more about AST, please click the following link - Applied Signal Technology: WHO WE ARE

What You Will Do:

• You will support multiple programs and will work with other experienced members in R&D on system development and deployments for the protection of our country

• You will generate briefings and present material to team members, customers, and AST management as necessary.

• Travel up to 25%

Qualifications You Must Have:

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 10 years of prior relevant experience

• Ability to obtain and maintain a Top-Secret SCI (TS/SCI) U.S. government issued security clearance is required with the ability to obtain a polygraph after start. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

• Typically requires a minimum of 10 years of practical experience in systems architecture and systems engineering

• Experience working with customers, end users, hardware design teams, and software design teams

• Experience with reverse engineering of embedded systems

• Experience with signal processing in developing proof-of-concept (PoC) use case scenarios and prototypes

• Experience developing system level designs, high level control and data interfaces

• Strong written and verbal communication skills and the ability to work independently yet collaboratively in a team environment.

Qualifications We Prefer:

• Master of Science (MS) Degree in Electrical Engineering, Computer Engineering, Software Engineering, Computer Science, Mathematics, or Physics.

• Experience with RF, optical, and/or electrical telecommunications standards and processing techniques

• Experience with Design, Development, Integration and Test of Open Systems Architectures

• Experience in developing proof-of-concept (PoC) use case scenarios in support of creation of novel waveforms

• Experience formalizing, developing and documenting requirements, plans, and procedures based on customer discussions, briefings, interactions, and statements of work

• Understanding of telecommunications systems concepts and signal processing fundamentals

• Existing Top-Secret SCI with Polygraph (Active within the last 24 months)

What We Offer​

• 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 illness insurance, group legal, ID theft protection ​

• Birth, adoption, parental leave benefits ​

• Ovia 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  ​

•  Eligible for relocation

• And More!

Learn More & Apply Now!​

Do you want to be a part of something bigger? A team whose impact stretches across the world, and even beyond? At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions — whatever and wherever they may be. Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions. By joining our team, you’ll have your own critical part to play in ensuring our customer succeeds today while anticipating their needs for tomorrow. Are you up for the challenge? Join our mission today. ​ 

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

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.

#AST

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 145,600 USD - 276,800 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.

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