Mechanical Engineer
$75.8k - $144.2kRTX Corporation
Date Posted: 2026-06-26 Country: United States of America Location: El Segundo, CA (2000 E Imperial Hwy, BLDG R01) Position: Mechanical Engineer – Airborne Radar Design Type: Onsite A U.S. citizen with or able to obtain a DoD Secret clearance is required. What You Will Do Provide technical support on major programs and interface with Lead Mechanical Engineers and Chief Engineers to support design objectives. Lead small teams through design development and ensure procedures are followed while meeting all program design objectives. Provide support to suppliers fabricating components and assemblies. Maintain positive relationships with Engineering and Program Management through strong communication skills. Qualifications You Must Have Typical requirement: Bachelor’s degree in Science, Technology, Engineering, or Mathematics (STEM) or a minimum of 3+ years of relevant experience. Experience with CREO or similar 3D solid modeling software. Mechanical design, development, documentation, fabrication, assembly, and test/delivery of military electronic products. Ability to obtain and maintain a U.S. security clearance. Qualifications We Prefer Broad hardware engineering background. Excellent interpersonal, multi‑tasking, written, and verbal communication skills. Ability to work independently and lead small teams. Experience in defense or aerospace environments. Exposure to RF principles, RF circuit card design, RF materials, manufacturing and producibility. What We Offer Salary range: $75,800 – $144,200 USD. Eligibility for medical, dental, vision, life insurance, short‑term and long‑term disability, 401(k) match, flexible spending accounts, paid time off, holidays, and potential incentive compensation. Relocation assistance may be provided. Benefits may vary based on business unit and collective‑bargaining agreement. We are 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. #J-18808-Ljbffr RTX Corporation
$95k - $115k
...SpaceX is actively developing the technologies to make this possible, with the ultimate goal ofenabling human life on Mars. MECHANICAL ENGINEER (COMPONENTS BUILD ENGINEER STARSHIP) The Starship Components Manufacturing team assembles, tests, troubleshoots, and delivers...SuggestedPermanent employmentTemporary workInternshipWeekend work- United States Digital Space LLC in California is seeking a Mechanical Engineer specialized in manufacturing components for the Starship project. The role involves designing high-quality flow control devices and working closely with engineers to optimize production processes...Suggested
$80k - $120k
...Facility Service Group Sales Sales Engineer The Facility Service Group typically handles projects that require quick turnaround.... ...Why join ACCO? ACCO Engineered Systems is one of the largest mechanical contractors in the country. Since 1934, owners and builders have...SuggestedTemporary workFor contractorsWork experience placementWork at officeMonday to FridayFlexible hours- Pow.bio, located in El Segundo, CA, is seeking a Mechanical Engineer, Fluids Systems to take ownership of fluid systems for the Kaleidos reactor project. Responsibilities include analyzing thermal and fluids systems, component selection, and managing suppliers to achieve...SuggestedFlexible hours
- Radiant Industries in El Segundo is seeking a Senior Mechanical Engineer specializing in structural design for their portable nuclear microreactors. You'll develop critical structures, ensuring reliability through thermomechanical analyses. The ideal candidate has a Bachelor...Suggested
- ...practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use... ...About the Role Radiant is seeking a highly motivated Senior Mechanical Engineer to design and develop critical structures within...Full timeSummer workImmediate startRemote workFlexible hoursWeekend work
- Radiant Industries, based in El Segundo, California, seeks a highly motivated Staff Mechanical Engineer. This role focuses on owning critical fluid systems for the innovative Kaleidos microreactor project, pioneering the industry with portable nuclear solutions. The ideal...
$100k - $180k
...both at once. Today Forge is actively developing the technology to rapidly scale the deployment of nuclear fission. Founding Mechanical Engineer Our Founding Engineering team designs Ember, our first nuclear reactor. We will go from company founding to producing electricity...Full timeInternshipWork at officeLocal areaRelocationWeekend work$75.8k - $144.2k
...Position Mechanical Engineer II – Space Mechanisms Team Location El Segundo, California (On‑site) Security Clearance TS/SCI without polygraph required. The candidate must be a U.S. citizen and have an active security clearance after day1. Responsibilities Design mechanical...Temporary workRelocation packageFlexible hours- ...Mechanical Engineer We are looking for a Mechanical Engineer to join Mycronic's Global Technologies division working within our Applied Plasma business line (Surfx Technologies). This role involves contributing to the design, prototyping, testing, and optimization of complex...Full timeWork at officeLocal area
- ...beyond Earth. Led by former SpaceX, Varda, Impulse, and Relativity engineers, our vision is to dominate cislunar space and build the... ...technology to reshape the space domain for good. Job Description As a Mechanical Engineer, you will work closely with a focused technical team...Permanent employmentLocal areaShift work
- ...refugee. Summary Supports the development and documentation of mechanical systems, including system design, proposals, and high-level... ...Skills Bachelor's or Master's degree in Aerospace or Mechanical Engineering Minimum of 12 years of relevant design, analysis, or...Permanent employmentWork at office
- ...Overview Join a Team Where Engineering Excellence Drives Opportunity At Affiliated Engineers, Inc. (AEI) , we bring together expertise... ...progress, and your work helps shape a brighter future. As a Mechanical Engineer I in our Pasadena office, you will help us empower our...InternshipWork at office
$100k - $121k
...actively seeking passionate, collaborative, energetic, and forward‑thinking individuals to join our team. We are looking to add a Mechanical Engineer II to our team. If you enjoy working in a startup environment and are passionate about developing leading‑edge hardware for...Permanent employmentFull timeContract workWork experience placementLocal area- ...escalate. Nowhere is the pattern more glaring than in small unmanned aerial systems (sUAS)—drones. What you will be doing As a Mechanical Engineer at Neros, you will own key components of our products, starting from the conceptual design phase all the way through...
- Dormont Manufacturing Co is looking for a Mechanical Build specialist in El Segundo, California. In this role, you'll own the mechanical... ...build process of Poseidon robotic systems, collaborating with engineers to ensure high-quality production standards are met. We're...
$100k - $130k
...components for platforms such as the F-35, F-16, F/A-18, 737MAX, 787, A320neo, A321, Mk-48, and M1 Abrams. Overview The Mechanical Build Engineering role is responsible for owning the build procedures used to develop qualification hardware, and iterate on the initial builds...Permanent employmentInternshipFlexible hours- Radiant Industries in El Segundo seeks a Senior Equipment Engineer to collaborate with design engineers and manufacturing teams in innovating production equipment for their nuclear microreactor system. This role requires a bachelor’s degree in a relevant engineering discipline...
- Pow.bio is seeking a Senior Equipment Engineer in El Segundo, CA, to work closely with design and manufacturing teams to innovate custom... ...will have a Bachelor's degree and at least 4 years of mechanical equipment design experience. The role involves developing equipment...
- ...Overview Wardstone is looking for a Mechanical and Structural Engineer to own the mechanical architecture and structural integrity of our first missile interceptor, Hailstorm. This role includes missile interceptor sizing, outer mold line (OML) design, actuator mechanics...Temporary work
- United States Digital Space LLC in Hawthorne, CA is seeking a Sr. Mechanical Engineer (HVAC) to design and activate advanced manufacturing facilities. You will become an expert in HVAC and fluid systems, driving impactful solutions in the quest for space exploration. The...
$130k - $180k
...SPACE EXPLORATION TECHNOLOGIES CORP in Hawthorne, CA is seeking a Sr. Mechanical Engineer for the Flight Termination System for Starship. The role involves developing high-performance explosive devices and ensuring robust hardware integration. Ideal candidates will have...- The Boeing Company in El Segundo, CA is seeking a Facilities Mechanical HVAC Engineer at Experienced or Senior level to support Southern California's infrastructure. You will ensure compliance with building codes and regulations while providing valuable recommendations...
$110k - $200k
...SENIOR MECHANICAL ENGINEER Freeform builds AI-native manufacturing systems that unify software, hardware, and physics to produce industrial-scale parts at the speed of human ideation. By treating manufacturing as a single integrated system, we unlock a new era of innovation...Casual workRelocation packageFlexible hours$111.35k - $150.65k
...Find your future with us. Boeing’s Global Real Estate and Facilities (GREF) organization is currently seeking a Facilities Mechanical HVAC Engineer , at Experienced or Senior level, to join our Engineering and Technology (E&T) team in El Segundo, CA to provide support...Permanent employmentFor contractorsWork experience placementInterim roleRelocationVisa sponsorshipWork visaFlexible hoursShift workDay shift$111.35k - $150.65k
Facilities Mechanical HVAC Engineer (Experienced or Senior) Company: The Boeing Company Boeing’s Global Real Estate and Facilities (GREF) organization is currently seeking a Facilities Mechanical HVAC Engineer , at Experienced or Senior level, to join our Engineering and...Permanent employmentFor contractorsWork experience placementInterim roleRelocationVisa sponsorshipWork visaFlexible hoursShift work- ...practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory‑built microreactors that use... ...About the Role Radiant is seeking a highly motivated Senior Mechanical Engineer to join the team responsible for the power...Full timeSummer workImmediate startRemote workFlexible hoursWeekend work
- Dormont Manufacturing Co is seeking a Mechanical Engineer to bridge site infrastructure and next-generation autonomous manufacturing in Hawthorne, California. The role involves designing and implementing infrastructure for the Skyfall printing system, ensuring systems operate...
$111.35k - $150.65k
The Boeing Company is seeking a Facilities Mechanical HVAC Engineer in El Segundo, CA. The role involves ensuring compliance with building codes and customer requirements while developing technical designs and cost estimates. Candidates should have a Bachelor's degree...$135k - $190k
...SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. SR. MECHANICAL ENGINEER (HVAC) As a member of the construction and infrastructure team, you will design, build, and activate some of the world’s most...Permanent employmentTemporary workWeekend work
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