Senior Principal Systems Engineer (Contingent)

Date Posted:

2025-10-01

Country:

United States of America

Location:

CA620: AST160N Riverview Anaheim Hill 160 North Riverview Drive Suite 300, Anaheim, CA, 92808 USA

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:

TS/SCI without Polygraph

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

Raytheon Company Managed by Collins Aerospace

Applied Signal Technology (AST) is seeking a Senior Principal Systems Engineer with deep expertise in Global Navigation Satellite Systems (GNSS) operating within a complex electronic warfare environment to lead the development of multi sensor guidance and navigation systems.

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 with 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 located at our Anaheim Hills, CA location.  To find out more about AST please, click the link below: Applied Signal Technology: WHO WE ARE

What You Will Do:

• Drive system-level architecture, performance analysis, and integration of candidate systems.
• Algorithm development, signal processing, and modeling & simulation related to characterizing performance of candidate systems for assured position navigation, and timing.
• As a technical leader, you will collaborate with multi-disciplinary teams to design resilient and precise navigation systems that operate in challenging and contested environments.
• 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
• Typically requires 10 years of experience in GNSS/GPS system design and analysis.
• Experience working with navigation technologies such as Inertial Guidance, Kalman Filters, Sensor Fusion, spread spectrum signal acquisition and tracking.
• Familiarity with Government Reference Architectures (AMS, Big Iron)
• Familiarity with anti-jam, anti-spoofing techniques, and resilient navigation approaches.
• Experience with performing modeling & simulation, system testing, data analysis, and statistical Analysis for systems operating within an electronic warfare environment.
• Proven experience leading system engineering efforts for complex PNT systems.
• Experience with modeling tools (e.g., MATLAB, Python) and system simulation.
• Excellent written and verbal communication skills; ability to brief senior stakeholders and write technical documentation.
• Ability to obtain and maintain a Top-Secret SCI (TS/SCI) U.S. government issued security clearance is required.
• U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Qualifications We Prefer:

• Bachelor’s degree in Electrical Engineering, Aerospace Engineering, Systems Engineering, or related field.
• Master’s or Ph.D. strongly preferred.
• Field testing geolocation or navigation prototypes within a contested RF environment.
• Experience with GNSS receivers (GPS, Galileo, GLONASS, BeiDou).
• Experience working on DoD or aerospace programs.
• Existing Top-Secret SCI (TS/SCI) U.S. government issued security clearance (within the 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  ​
• 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  ​
• Learn More & Apply Now!​

• Adoption Assistance           ​

• Autism Benefit  ​

• Eligible For Relocation

• And More!

• Birth, adoption, parental leave benefits ​
• Ovia Health, fertility, and family planning  ​
• 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  ​
• 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 137,000 USD - 275,000 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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