Mercury Systems

Principal Mechanical Engineer

Mercury Systems • $120K — $145K *
Torrance, CA 90503In-Person
Aerospace & Defense
5 - 7 years of experience
Today
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Job Overview by Ladders

Qualifications

  • Bachelor's degree in mechanical or aerospace engineering
  • Minimum 6 years relevant mechanical engineering experience
  • Proficiency in GD&T and ASME Y14.5 standards
  • Experience in electronics packaging design for harsh environments (MIL-STD-810)
  • Skilled in 3D CAD software like SolidWorks or CREO
  • Familiarity with configuration management and material control processes
  • Ability to obtain and maintain a U.S. government security clearance

Responsibilities

  • Lead products from concept development to production release
  • Perform mechanical activities for rugged subsystems and PCB assemblies
  • Collaborate with cross-functional teams including Hardware/Electrical Engineering and Quality Engineering
  • Develop and maintain Bills of Material (BOMs) for accurate production control
  • Manage Engineering Change Requests (ECRs) and Change Orders (ECOs)
  • Conduct thermal and structural analysis for environmental performance
  • Mentor and train junior engineers

Benefits

  • Opportunity to work on high-performance products for military and space applications
  • Collaborative, multidisciplinary team environment
  • Hands-on role with diverse engineering tasks
  • Potential for career advancement and professional development
  • Ability to impact mission-ready solutions in a fast-paced setting
Full Job Description
Job Summary:

This is a great opportunity for a principal level mechanical engineer to join a high-performing enigneering team who brings technical experience and a fresh perspective to complex design challenges. You will play a hands-on role in designing, analyzing, and testing rugged subsystems and complex PCB assemblies that are core to Mercury's high-performance product portfolio. The ideal candidate thrives in a fast-paced, multidisciplinary environment and is driven to translate innovative ideas into impactful, mission-ready solutions.

Job Responsibilities:
  • Lead products through the full lifecycle; from concept development to integration, testing, and production release.
  • Perform mechanical engineering activities for rugged subsystems and complex PCB assemblies, including mechanical packaging, connector selection, cable and label design, prototype inspection and assembly, environmental testing, and supporting hardware documentation procurement
  • Collaborate closely with cross-functional partners such as Hardware/Electrical Engineering, Manufacturing, Quality Engineering, and Procurement
  • Develop and maintain Bills of Material (BOMs/PLs) to support accurate configuration and production control
  • Draft, submit, and manage Engineering Change Requests (ECRs) and Engineering Change Orders (ECOs)
  • Conceptualize, design, analyze, and document mechanical hardware and systems intended for rugged military and space environments
  • Conduct thermal and structural analysis and/or simulations to ensure robust mechanical and environmental performance
  • Design complex fixtures to support product testing and advanced manufacturing processes
  • Create detailed 3D models and engineering drawings
  • Communicate design concepts and produce clear, high-quality product documentation for diverse internal and external audiences
  • Support environmental and functional design verification testing in accordance with MIL-STD-810 for severe operating conditions
  • Provide hands-on support during initial build validation of new designs, ensuring form, fit, and function are met
  • Perform failure analysis of discrepant material in partnership with Manufacturing and Quality Engineering teams
  • Develop test plans, inspection reports, and associated documentation in support of verification and validation activities
  • Mentor and train junior engineers

Required Qualifications:
  • Bachelor's degree in mechanical or aerospace engineering
  • Typically requires a minimum of 6 years of relevant mechanical engineering experience
  • Familiarity with GD&T, ASME Y14.5, Y14.100
  • Experience and understanding of PWA/CCA design and associated manufacturing processes
  • Proven experience designing electronics packaging for severe environments, including compliance with MIL-STD-810
  • Proficiency with 3D CAD software such as SolidWorks or CREO
  • Broad knowledge of both conventional and advanced manufacturing techniques, including machining and post-processing for CCAs and metal components
  • Strong foundational understanding of heat-transfer design principles and dynamic system design for shock and random vibration environments
  • Familiarity with configuration management and material control processes, including routers, work instructions, and related tools i.e. Agile, Oracle, EPDM
    Proficiency with standard engineering documentation and presentation tools
  • This role requires the ability to obtain and maintain a U.S. government security clearance; U.S. citizenship is required


Preferred Qualifications:
  • Master's degree in mechanical or aerospace engineering
  • Aerospace and Defense Industry experience
  • Expertise with GD&T, ASME Y14.5, Y14.100
  • Experience performing thermal analysis using tools such as 6Sigma, Celsius, SC Stream, or SC Flow
  • Experience performing Structural analysis using tools such as SolidWorks Simulation, Femap/NASTRAN)


Click here read about our recent press release.

About Mercury Systems

Mercury Systems is a technology company that specializes in the design and manufacture of open architecture, secure processing systems and subsystems for commercial, defense, and intelligence applications. The company's products and solutions are used in a variety of applications, including radar, electronic warfare, signals intelligence, and cyber security. Mercury Systems was founded in 1981 and is headquartered in Andover, Massachusetts.
Learn more about Mercury Systems
Size
2,294 employees
Market Cap
$2.5 billion
Industry
Aerospace & Defense
Net Income
$79.2 million
Founded
1981
5 Year Trend
+19.3%
Revenue
$841.6 million
NASDAQ
MRCY
* Ladders Estimates

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