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Senior Systems Engineer - MANTIS SEIT (Onsite)
RTX
United States
Qualifications You Must Have
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RTX

Senior Systems Engineer - MANTIS SEIT (Onsite)

United States

The salary range for this role is 95,500 USD - 181,700 USD.

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Job details

Pay: The salary range for this role is 95,500 USD - 181,700 USD.
Posting language: English
Posted: Nov 10, 2026

Original job description

Date Posted:

2026-11-10

Country:

United States of America

Location:

US-CA-EL SEGUNDO-E04 ~ 2006 E El Segundo Blvd ~ BLDG E04

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:

DoD Clearance: Secret

Security Clearance Status:

Active and existing security clearance required after day 1

Raytheon Company, Managed by Collins Aerospace

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 MANTIS (Mission Assured Nav, Timing, Inertials, and Sim) SEIT Department as a Senior Systems Engineer, where you will play a critical role in supporting the development, integration, and validation of resilient navigation systems. You will contribute to cutting-edge solutions that enhance GPS receiver and navigation technologies.

The (MANTIS) product line is responsible for providing U.S. and coalition forces with accurate GPS navigation capability to successfully achieve their missions - free of disruption and jamming. GNS solutions equip manned aircraft, unmanned systems, precision weapons, and ground systems. These products include anti-jam systems, integrated GPS/INS navigators, high-performance Selective Availability Anti-Spoof Module (SAASM) receivers, and Military Code (M-Code) receivers.

Sign-on Bonus Eligible

What You Will Do

Develop and manage software and hardware requirements, ensuring traceability throughout the engineering lifecycle.
Create and maintain systems engineering documentation, including test plans, test procedures, and test reports.
Support system integration, acceptance testing, troubleshooting, and requirements-based testing/verification and validation.
Collaborate with multidisciplinary teams of engineers, including electrical, mechanical, software, and logistics professionals.
Perform modeling and simulation tasks, including 6-DOF analysis, to evaluate system performance.
Contribute to the design and analysis of guidance and navigation systems, including GPS receiver system design, integration, and test.
Ensure compliance with industry standards such as RTCA, MIL-STD, requirements.
Utilize commercial test equipment, such as oscilloscopes and signal generators, to support system development and testing.

Qualifications You Must Have

Experience in hardware/software development, system integration, and requirements-based testing.
Experience with guidance and navigation systems, including GPS receiver system design, integration, and test.
Experience with test equipment/tools, technical design reviews, and production readiness.
Experience with Agile development and tools such as JIRA and Confluence.
Experience with requirements development, management, traceability, and allocation for systems, software, and hardware.
The ability to obtain and maintain a U.S. government-issued Secret security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience

Qualifications We Prefer

Experience with Agile development and tools such as JIRA and Confluence.
Proficiency in DOORS, DOORS NG tools for requirements management.
Knowledge of industry standards such as MIL-STD-810, MIL-STD-461, MIL-STD-704, ARINC, and RTCA DO standards.
Background in RF signal processing and experience with commercial test equipment, such as spectrum analyzers, logic analyzers, electronics, navigation (GPS or Inertial), modeling, and simulation.
Familiarity with EVMS, ETCs, and ECPs.

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
May be eligible for Relocation
And more!

Learn More & Apply Now!

Mission Systems:

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 consider the following role type definitions as you apply for 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.

At Collins, the paths we pave together lead to limitless possibility. And the bonds we form – with our customers and with each other – propel us all higher, again and again.

Apply now and be part of the team that’s redefining aerospace, every day. #MISENG

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 95,500 USD - 181,700 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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More about this job

Skills

GPS
Military code
M-code
Documentation
Test procedures
ICT system integration
Troubleshooting
Logistics
Regulatory compliance
Software development
Agile development
Atlassian JIRA
Atlassian Confluence
Signal processing
European Train Control System

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Jobs in the United States