Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Senior Mechanical Engineer

$150k - $190k

Rethink Recruit

About CHAOS Industries
CHAOS Industries builds advanced sensing and detection systems for warfighters, commercial air operators, and border protection teams. Their products are powered by Coherent Distributed Networks (CDN), a proprietary architecture that enables distributed, real-time threat detection across complex and contested environments.

Founded in 2022 and backed by $1 billion in funding from 8VC, Accel, and Valor Equity Partners, CHAOS operates at the intersection of defense and deep tech. The mission is direct: give operators time to detect, decide, and act before threats evolve.

The company has grown to over 200 people across offices in Los Angeles, Washington D.C., San Francisco, San Diego, Seattle, and London.

The Opportunity

CHAOS is looking for a Senior Mechanical Engineer to serve as a technical authority for the design, integration, and qualification of electronic hardware and enclosures for aerospace and defense applications. This is a hands-on role with real ownership across programs, from early concept through qualification, production, and fielded sustainment.

You will work directly with mechanical, electrical, RF, power, and systems engineering teams to solve complex design problems and deliver hardware that performs in demanding environments. You will set mechanical direction, drive decisions independently, and serve as a primary interface with customers, suppliers, and manufacturing partners.

What You'll Do
  • Architect and design ruggedized electronic enclosures, chassis, card-level packaging, mounting features, and thermal solutions to meet program and environmental requirements
  • Define and maintain mechanical architectures, interface definitions, and design approaches across multi-disciplinary programs
  • Develop and oversee 3D CAD models, assemblies, drawings, and interface control documentation (ICDs) to production-ready quality
  • Perform first-order structural and thermal analyses to support design decisions and verify compliance with requirements
  • Lead cross-disciplinary technical resolution involving mechanical, electrical, RF, power, and systems teams
  • Serve as primary hardware interface with customers, platform providers, suppliers, and manufacturing partners; conduct make/buy assessments
  • Support production transition, configuration control, and investigation of integration issues on fielded systems
You Should Have
  • 4+ years of experience in mechanical design and integration of electronic hardware for aerospace, defense, or similar high-reliability applications
  • Strong proficiency with mechanical CAD tools such as SolidWorks or equivalent, with experience producing production-ready drawings
  • Experience designing hardware for RF, avionics, power electronics, or embedded computing products
  • Solid understanding of mechanical drafting standards, GD&T, tolerance analysis, and configuration-controlled documentation
  • Experience supporting prototype builds, integration, and qualification testing
  • Eligibility to obtain and maintain a U.S. security clearance
Nice to Have
  • Experience with FEA or multiphysics simulation tools such as NASTRAN, ABAQUS, ANSYS, or COMSOL
  • Familiarity with military specifications and standards such as MIL-STD-810
  • Experience supporting environmental qualification testing including thermal cycling, vibration, and shock
  • Knowledge of military and aerospace connectors such as MIL-DTL-38999, ARINC, or Micro-D
  • Experience with cable harness routing, connector layouts, and electromechanical integration
  • Hands-on prototyping experience using additive manufacturing, CNC machining, or machine shop equipment
  • Master's degree in Mechanical Engineering or related field

Compensation and Benefits

Base Salary: $150,000 - $190,000, depending on experience
Vacancy posted 3 days ago
Similar jobs that could be interesting for youBased on the Senior Mechanical Engineer in Hawthorne, CA vacancy
  • $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... 
    Senior

    SPACE EXPLORATION TECHNOLOGIES CORP

    Hawthorne, CA
    2 days ago
  •  ...Mechanical Engineer We are looking for a Mechanical Engineer who enjoys building real hardware and owning designs from first concept through production. This role is hands-on and execution-focused, involving mechanical design, CAD, prototyping, testing, and production... 
    Senior

    Splash Industries

    El Segundo, CA
    3 days ago
  •  ...Segundo, made up of former SpaceX, Anduril, and Lockheed engineers, to develop and mass produce life-saving systems....  ...around the world. Job Overview: We are seeking a skilled mechanical design engineer with a strong design and testing... 
    Senior
    Permanent employment
    Immediate start

    Singularity Defense Corp.

    Gardena, CA
    3 days ago
  • $205k - $245k

     ...sensing and detection solutions that give the ultimate advantage: time. Role Overview: CHAOS is seeking a Senior Principal Mechanical Engineer to serve as the mechanical authority and provide high-value, hands-on mechanical expertise for the integration of... 
    Senior
    Full time
    Work experience placement
    Casual work
    Relocation package

    Chaos Industries

    El Segundo, CA
    14 hours ago
  • $120k - $160k

     ...Rainmaker Engineering Opportunity Rainmaker is pioneering a modern cloud seeding system to solve water scarcity and inclement weather problems. We develop and incorporate radar validation, weather-resistant UAS, numerical weather modeling, and sustainable cloud seeds... 
    Senior
    Work at office
    Remote work
    Relocation package

    Rainmaker

    El Segundo, CA
    3 days ago
  • $100k - $140k

     ...Mechanical Design Engineer This position is focused on the mechanical design, development, and manufacturing of stationary and mobile antenna systems and related equipment. Essential Job Duties and Responsibilities Work as part of multiple integrated product... 
    Senior
    Casual work
    Immediate start

    ThinKom Solutions Inc

    Hawthorne, CA
    2 days ago
  • $120k - $220k

     ...Senior Mechanical Engineer Icarus was founded on the belief that the Stratosphere is the Forgotten Frontier and that reclaiming it will define the next era of aerospace and what is possible from the sky. We build solar-powered aircraft that fly at 60,000 ft for weeks... 
    Senior
    Work experience placement
    Day shift

    Icarus Inc

    El Segundo, CA
    5 days ago
  • $140k - $230k

     ...Senior Mechanical Design Engineer Torrance, California, United States $ 140,000.00 - 230,000.00 (US Dollar) Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development... 
    Senior
    Permanent employment

    Castelion

    Torrance, CA
    3 days ago
  • $120k - $150k

     ...Senior Mechanical Engineer Do you want to be part of an organization on the cutting edge of technology? We're looking for talented people to join our motivated and friendly team. We have an open, collaborative, and flexible environment. You'll work alongside leading... 
    Senior
    Work at office
    Local area
    Flexible hours

    Mycronic USA

    Redondo Beach, CA
    4 days ago
  • $115k - $136k

     ...Job Description Job Summary (General Responsibilities): As a member of the Mechanical Engineering team, the Senior Mechanical Engineer will be responsible for designing and developing highly desirable consumer products from initial concept all the way to production... 
    Senior
    Work experience placement
    Work at office

    Belkin

    El Segundo, CA
    5 days ago
  • $140k - $180k

     ...SENIOR MECHANICAL ENGINEER Mesh Optical Technologies was founded on the belief that optical photons will be at the center of advanced technologies in the coming century. Making advanced technology ubiquitous means building at scale, and that's exactly what we're... 
    Senior
    Relocation package
    Flexible hours
    Weekend work

    Mesh Optical Technologies

    Gardena, CA
    3 days ago
  •  ...Senior Mechanical Engineer for a well established full service firm (onsite) This Jobot Job is hosted by: Bill Artiga Are you a fit? Easy Apply now by clicking the "Quick Apply" button and sending us your resume. Salary: $1,200,000 - $145,000 per year A bit about us:... 
    Senior
    Permanent employment
    Full time
    Local area

    JOBOT

    Torrance, CA
    1 day ago
  • $140k - $200k

     ...through abundant, low-cost clean energy. Founded by an ex-SpaceX engineer, Critical Energy designs and manufactures factory-built,...  ...the Role: We are seeking an innovative and versatile Senior Mechanical Design Engineer to create new turbomachinery. Collaborating... 
    Senior
    Immediate start
    Flexible hours

    Critical Energy Systems

    Hawthorne, CA
    4 days ago
  • $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... 
    Senior
    Casual work
    Relocation package
    Flexible hours

    Dormont Manufacturing Company

    Hawthorne, CA
    2 days ago
  •  ...Description Mercury Systems is seeking the best and brightest engineering talent to help us deliver cutting‑edge technology for...  ...matters most. In this role, our team is looking for a dynamic senior mechanical engineer who brings technical experience and a fresh... 
    Senior
    Casual work
    Worldwide
    Relocation package

    Mercury Systems

    Torrance, CA
    14 hours ago
  • $109k - $150k

     ...level of commitment to changing the foundational assumptions for everything we do in space. What You’ll Do: The Senior Mechanical Design Engineer will provide guidance for design and prototype builds for the Space Kinetic core technology to achieve our mission of... 
    Senior
    Permanent employment
    Flexible hours

    Space Kinetic

    El Segundo, CA
    4 days ago
  •  ...going electric and Arc is building the platform that powers it. Who we're looking for Who We're Looking For As Arc's Mechanical Engineer, you will own the design and integration of complex electromechanical systems across the full vehicle lifecycle- from early... 
    Senior
    Full time
    Work at office
    Relocation package

    Arc Boat Company

    Torrance, CA
    2 days ago
  • $105k - $155k

     ...Sr. Packaging Engineer Joining King's Hawaiian makes you part of our `ohana (family). We are a family-owned business for over seventy years, respecting our roots while thinking about our future as we continue to grow and care for our customers and the communities we... 
    Senior

    KH Inc

    Torrance, CA
    4 days ago
  • $140k - $230k

     ...Senior Tooling Engineer Torrance, California, United States $ 140,000.00 - 230,000.00 (US Dollar) Castelion is bringing a new approach...  .... Basic Requirements Bachelor's degree in Mechanical, Electrical, or Manufacturing Engineering (or related field... 
    Senior
    Permanent employment

    Castelion

    Torrance, CA
    3 days ago
  • $138.55k - $187.45k

     ...Insight Global is seeking a Senior Welding Engineer in Los Angeles, CA to join a rapidly growing aircraft manufacturer. Responsibilities will...  ...set up welding qualification test campaigns and interpret mechanical testing and NDE results. Support manufacturing... 
    Senior

    Insight Global

    Hawthorne, CA
    4 days ago
  •  ...nuclear development leverages modern software engineering to rapidly deliver safe, factory-built...  ...Radiant is seeking a highly motivated Senior Equipment Engineer who will be working...  ...for fabricating and assembling complex mechanisms and structures. Design, analyze, and... 
    Senior
    Full time
    Summer work
    Immediate start
    Remote work
    Flexible hours
    Weekend work

    Radiant

    El Segundo, CA
    5 days ago
  •  ...Job Description Job Description Description As a Senior Mechanical Engineer for our Electric Propulsion Team at Impulse, you will own the full life cycle of mechanical design for our high-efficiency Hall thrusters and their vehicle interfaces.  You will develop... 
    Senior
    Permanent employment
    Full time

    Impulse Space

    Redondo Beach, CA
    28 days ago
  •  ...Job Description Job Description Description As a Mechanical Engineer at Impulse for our Vehicle Engineering Team, you will own all aspects of the design, analysis, build, test and integration of flight hardware – working with cross-functional engineering teams to... 
    Senior
    Permanent employment
    Full time

    Impulse Space

    Redondo Beach, CA
    17 days ago
  • $133.5k - $184.8k

     ...practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that...  ...About the Role Radiant is seeking a highly motivated Senior Mechanical Engineer (Structures) to design and develop critical structures... 
    Senior
    Full time
    Summer work
    Immediate start
    Remote work
    Flexible hours
    Weekend work

    Radiant Industries

    El Segundo, CA
    12 days ago
  • $158k - $247.28k

     ...practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that...  ...About the Role Radiant is seeking a highly motivated Senior Mechanical Engineer to join the team responsible for the power generation... 
    Senior
    Full time
    Summer work
    Immediate start
    Remote work
    Flexible hours
    Weekend work

    Radiant Industries

    El Segundo, CA
    12 days ago
  •  ...seeking passionate, collaborative, energetic, and forward-thinking individuals to join our team. We are looking to add a  Senior Mechanical Engineer   I to our Mechanical Engineering team. If you enjoy working in a startup environment and are passionate about... 
    Senior
    Permanent employment
    Full time
    Contract work
    Work experience placement
    Local area

    CesiumAstro

    El Segundo, CA
    27 days ago
  •  ...Job Description Job Description Role Overview Luminit Inc. is seeking a Mechanical Design Engineer responsible for the mechanical design, structural analysis, prototyping, and integration of Luminit’s optical product assemblies across aerospace and emerging programs... 
    Senior

    Luminit

    Torrance, CA
    26 days ago
  • $158k - $219.45k

     ...practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that...  ...About the Role Radiant is seeking a highly motivated Senior Mechanical Engineer to own critical Kaleidos fluid systems from preliminary... 
    Senior
    Full time
    Summer work
    Immediate start
    Remote work
    Flexible hours
    Weekend work

    Radiant Industries

    El Segundo, CA
    25 days ago
  •  ...About the Role Join a leading commercial mechanical construction team as a Senior Mechanical Engineer based out of Los Angeles, CA. This role contributes to high-profile projects across mechanical service and works alongside experienced professionals who value collaboration... 
    Senior

    Gulfstream Strategic Placements, LLC

    Los Angeles, CA
    4 days ago
  • $86.8k - $165.2k

     ...than 100 years of experience and renowned engineering expertise to meet the needs of today's...  ...Producibility Readiness Department is seeking a Senior Producibility Engineer. This is an...  ...Management Section works directly with Mechanical Engineering, Materials and Processes,... 
    Senior
    Full time
    Temporary work
    Work experience placement
    Work at office
    Remote work
    Relocation
    Flexible hours

    Raytheon

    Los Angeles, CA
    3 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior Mechanical Engineer. Be the first to apply!