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Added 2 mins ago
Environmental Scientist / Senior Environmental Scientist - Oahu
hawaiianel
Honolulu
This posting seeks to fill at either the Environmental Scientist or Senior Environmental Scientist level; whichever level is most suited to the qualifications of the applying candidate.
Added 3 mins ago
TS
Senior Computational Scientist / Engineer, Trajectory Simulation
Triton Systems, Inc.
Chelmsford, MA
- $120,000 to $150,000 USD / year
We are seeking a Senior Computational Scientist / Engineer to provide technical leadership on research and development efforts within our Applied Computational Engineering group. This role…
Added 13 mins ago
Senior Gen AI Engineer
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MA
We are looking for an experienced GenAI Senior Engineer to design, build, and maintain scalable, secure, and production-grade AI platforms and applications. The role will focus on…
Added 16 mins ago
IT Platform Engineer Senior
University of Maryland College Park (UMCP)
United States
The Senior Platform Engineer is a member of the Enterprise Linux Services team. This position is responsible for all aspects of IT system administration, enabling the University's research,…
Added 16 mins ago
Edge Network Engineer Junior
University of Maryland College Park (UMCP)
United States
Ability to follow directions from more senior team members
Added 30 mins ago
Senior Web Platform Engineer
University of Chicago
Chicago, IL
The Senior Web Platform Engineer is the technical lead and co-owner of Advancement's web platforms and supporting technologies. This role combines hands-on back-end web development and…
Added 32 mins ago
Senior Systems Engineer
SAIC
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SAIC is seeking a mid-level Senior Systems Engineer to support the Common Translator (CT), an embedded software module that acts as a translator between existing aircraft software and a new…
Added 32 mins ago
Senior Electrical Engineer
SAIC
Crane, IN
SAIC is seeking a senior electronics engineer with extensive automated test set design and development experience is required to serve as a subject matter expert our team in Crane, IN, in…
Added 33 mins ago
Senior Software Engineer
SAIC
El Segundo, CA
SAIC is seeking a Software Engineer with experience in cryptographic software to join the Positioning, Navigation, and Timing (PNT) Systems Engineering & Integration (SE&I) Team in El…
Added 33 mins ago
Lead Fielding Radio Communications & Data Links Subject Matter Expert (SME)
SAIC
Remote, United States
In this role, you will serve as the team's senior technical authority, providing expertise in Tactical Data Links (TDL), military radio communications, RF systems, antenna systems, and…
Added 33 mins ago
Senior Systems Engineer
SAIC
Aurora, CO · Boulder, CO
Overview: SAIC is seeking a Systems Engineer to provide technical advisory support for Launch and Early On-Orbit Test (LEOT) activities pertaining to the Next Generation Geosynchronous,…
Added 36 mins ago
Electrical Engineer III
Zachry Group
Houston, TX · Corpus Christi, TX
Zachry Group is currently looking talented and self-motivated Electrical Engineer III with design experience to join our Electrical Department in Houston, Texas. This is a great opportunity…
Added 48 mins ago
Data Solutions Engineer
Holland & Knight LLP
United States
The Data Solutions Engineer supports the development and management of the Firm’s data warehouse / lakehouse, data analytics platforms, and related processes. This role contributes to the…
Added 49 mins ago
System Safety Engineer (BT-26215)
Bastion Technologies
Huntsville, AL
The Senior System Safety Engineer - HLS Program will support NASA's Marshall Space Flight Center (MSFC) Safety and Mission Assurance (SMA) initiatives within the Human Landing Systems (HLS)…
Added 49 mins ago
Process Improvement Leader
INEOS AMERICAS LLC
Pasadena, TX
Communicate and influence effectively at all organizational levels, including senior leadership, translating complex technical topics into clear, decision-ready insight.
Added 51 mins ago
Analyst, Data & Software Engineer
Ovative Group, LLC
United States
In this role, you'll execute assigned data and software engineering work within a clearly scoped project, working under the guidance of senior engineers and your DE Manager. You'll help…
Added 52 mins ago
Senior DSP/SDR Engineer
The Aerospace Corporation
Chantilly, VA
We are looking for a Senior DSP/SDR Engineer to join our team and support critical programs that are vital to the success of today’s and tomorrow’s space architectures. This position…
Added 52 mins ago
Spacecraft Thermal Engineer
The Aerospace Corporation
El Segundo, CA · Chantilly, VA
We are looking for a Spacecraft Thermal Engineer (Senior Member of the Technical Staff / Member of the Technical Staff - Aeronautical and Mechanical Engineering) with a strong background in…
Added 52 mins ago
Senior Modeling and Simulation Communications Engineer
The Aerospace Corporation
El Segundo, CA · Colorado Springs, CO
Translate complex analysis into clear, compelling briefings for technical leads, senior leadership, and government customers
Added 52 mins ago
Digital Communication DSP Engineer
The Aerospace Corporation
El Segundo, CA
…Then a role as a Digital Communications & Signal Processing Engineer in the Digital Communication Implementation Department (DCID), under The Aerospace Corporation’s Mission Payloads…
Added 53 mins ago
Engineer/ Senior Engineer - Welding
Dominion Energy
WATERFORD, CT
Millstone Power Station is looking for an experienced, solutions-oriented Welding Engineer, Senior Welding Engineer, or Staff Welding Engineer to lead the Welding and ASME XI…
Added 1 hour ago
SC
Systems Engineer
Schwan's Company
Marshall, MN
- $75,000 to $125,000 USD / year
As a Systems Engineer, located in Marshall, MN, you will support the implementation and maintenance of server and network architecture in a food manufacturing environment.
Added 2 hours ago
G
Sr. Electrical Engineer (PE)
GPAC
Tampa, FL
- $110,000 to $140,000 USD / year
We are partnering with a well-established, employee-focused engineering consulting firm seeking a Senior Electrical Engineer to join its growing MEP team. This opportunity is ideal for an…
Added 2 hours ago
Senior Product Engineer, Accessibility
Humana
Frankfort, KY
…coding agents at the center of how we work. We are hiring a Senior Product Engineer, Accessibility, to own the products that help Humana’s teams build accessible web and mobile experiences…
Added 3 hours ago
DM
Senior Manufacturing Engineer
Davis Machine
Euless, TX
- $80,000 to $120,000 USD / year
The Senior Manufacturing Engineer leads manufacturing planning from quoting through production release. This role uses hands-on machine shop experience and knowledge of equipment…

RTX

Principal Mechanical Engineer

United States

The salary range for this role is 118,300 USD - 224,900 USD.

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Job details

Pay: The salary range for this role is 118,300 USD - 224,900 USD.
Experience: Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat.
Posting language: English
Posted: Nov 5, 2026

Original job description

Date Posted:

2026-11-05

Country:

United States of America

Location:

US-CA-EL SEGUNDO-E01 ~ 2000 E El Segundo Blvd ~ BLDG E01

Position Role Type:

Unspecified

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

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. Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.

What You Will Do The Airborne Radar Mechanical Design Department is currently seeking a Senior Mechanical Engineer for the Receiver & Electronic Packaging Section in El Segundo, CA. The person in this position will be involved in electronics packaging design for Airborne Radar Subsystems including Antenna, Receiver, Exciter, Processor and Power Supply subsystems. Tasks will include:

Mechanical engineering throughout the hardware life cycle, including concept development, preliminary and detail design, transition to production, production support and installation.
Designs will be for tactical airborne defense environment-based sensor systems including ground¬ based, shipboard, airborne, and space sensors.
Typical technologies include high density printed wiring board assemblies, electronic enclosures, thermal heat exchangers, machined components, RF microwave assemblies, and power converter units, all with
Challenging design constraints including Size, Weight, Power, and design to Cost.

What You Will Learn

Design and release mechanical parts and systems for Receiver & Electronic Packaging and other sub-systems.
Provide engineering support to internal operations and external suppliers.
Create 3-D models, 2-D detail drawings, and Change Notices.
Support creation of Design Specification and Acceptance Requirement documents.

Qualifications You Must Have

Typically requires a Bachelor’s in Science, Technology, Engineering, or Mathematics (STEM) degree or a minimum of 5 years’ prior relevant experience, to include any combination of the following:
Experience with completing detailed layouts and design documentation using Computer Aided Design tools
Experience with providing support to suppliers who are fabricating the unit components and assemblies.
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.

Qualifications We Prefer

Proficiency in RF principles, RF circuit card design, RF materials, manufacturing and producibility.
Design experience in high-frequency environments, enclosure design, EMI shielding, and thermal management.
Proficiency with CREO (Pro/E) or similar 3D solid modeling software.
Exposure to manufacturing processes for CCAs, metal housings, and brazements; or experience in a manufacturing and assembly support role.
Strong technical background with high technical aptitude.
Advanced degree in Mechanical, Electrical, or Aerospace Engineering.
Prior experience in Defense or Aerospace
Antenna Mechanical Design Experience
Possess active security clearance

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.

This is an onsite position and offers relocation based on candidate eligibility.

Learn More & Apply Now! This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA CAS), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: https://www.state.gov/m/ds/clearances/c10978.htm ohibited by local laws/regulations.

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 118,300 USD - 224,900 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

Research
Packaging
Packaging processes
Mechanical engineering
Documentation
EMI
Three-dimensional 3D solid modeling
Manufacturing processes
Assembly
Aerospace engineering
Project management

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