Mechanical Engineer
$75k - $90kAEI
Mechanical Engineer I
Join a team where engineering excellence drives opportunity. At Affiliated Engineers, Inc. (AEI), we bring together expertise and innovation to solve the most complex challenges. Since 1978, we've supported mission-driven organizations in designing systems and environments that advance society and improve lives. Today, with more than 900 professionals across 22 offices, we help shape the future of healthcare, science and technology, energy, education, and other vital sectors.
From elevating patient care in Mayo Clinic's world-class hospitals to enabling discovery in high-containment laboratories for U.S. agencies and driving environmental progress with Microsoft's renowned Thermal Energy Center, our work enriches the human experience, safeguards the environment, and pushes the boundaries of possibility.
AEI consistently earns national recognition from leading industry publications, including Building Design+Construction, Engineering News-Record, and Consulting-Specifying Engineer, with distinctions such as being named the #1 Laboratory Engineering Firm in the nation and receiving multiple Best of the Best Project awards, underscoring the lasting legacy of our work.
At AEI, you'll join a collaborative community where your expertise fuels innovation, your ideas drive progress, and your work helps shape a brighter future.
As a Mechanical Engineer I in our Pasadena office, you will help us empower our clients to achieve energy-efficient building solutions, save global environments, and create a better, greener future for all.
Why we need you:
Within our team framework, you will initially work with and be mentored by experienced engineers and will yourself help to mentor designers. Your initial assignments will include performing load calculations, determining system sizing and layouts, calculating equipment sizes, selecting equipment, completing field surveys, and reviewing equipment shop drawings. As you gain project experience, you will take on a greater role in leading mechanical project teams, writing specifications, participating in project meetings with clients and other consultants, and supporting construction-phase work.
Expertise of our most successful Mechanical Engineer I:
- BSME/BSAE from ABET accredited school.
- Minimum GPA of 2.5.
- Non-academic internship.
- Leadership involvement in extracurricular activities/student organizations preferred.
- EIT certification (Passed the FE exam) a plus.
- Internship experience in the MEP consulting engineering field preferred.
Effective skills to help you flourish:
- Strong spoken and written communications skills.
- Excellent organization and time management skills.
- Quick technical comprehension and motivation focused on client outcomes.
- Able to effectively prioritize multiple tasks.
- Effective working individually and within team environments.
When you work here, you can expect:
- A flexible, collaborative environment where your well-being matters—because your best work happens when you're supported.
- Real opportunities to grow—through mentorship, professional development programs, and exposure to high-impact projects across disciplines.
- To collaborate with inspiring teammates who challenge the status quo, foster innovation, and pave the way for future leaders.
- A benefits package that offers health, dental, vision, and retirement, a performance-based year-end bonus, and thoughtful perks tailored to your needs—whether that's a flexible work environment, wellness resources, or community-focused initiatives, we'll continue to invest in.
Estimated Starting Salary Range: $75,000 to $90,000 If this dynamic environment and the chance to contribute to transformative projects resonate with your ambitions, we would love to connect with you. Join us and make an impact!
$90k - $120k
...Overview Join a Team Where Engineering Excellence Drives Opportunity At Affiliated Engineers, Inc. (AEI) , we bring together... ...progress, and your work helps shape a brighter future. As a Mechanical Engineer II in our Los Angeles office, you will help us...SuggestedWork at officeFlexible hours$97k - $136.9k
...Caltech is a world-renowned science and engineering institute that marshals some of the world's brightest minds and most innovative tools... ...Caltech Optical Observatories (COO) is seeking a talented mechanical engineer to join its Optical and Infrared (OIR) Instrumentation...SuggestedFull timeFor contractorsCasual work$50 - $72 per hour
...Job Summary: The Senior Engineer position is responsible for independently delivering engineering services, from conceptual design... ...Management ~8+ years of experience with a Design/Build Mechanical Contractor or HVAC consultant Desired: ~ Professional...SuggestedHourly payTemporary workFor contractorsWork experience placementWork at officeMonday to Friday$106k - $150k
...At Inversion, we are designing and building cutting edge reentry vehicles which rely on efficient, first-principles based mechanical engineering design. As a Mechanical Engineer II at Inversion, you will play a critical role in the design, functionality, and performance...SuggestedPermanent employmentFull timeWork at office$87k - $149k
...breaking down barriers to innovation for a more connected, compassionate world. About the Role Minimed is seeking a Senior Mechanical Design Engineer to join our team and make an immediate impact. Apply now and join our team! Responsibilities may include the following...SuggestedFull timeWork at officeLocal areaImmediate startFlexible hours$137k - $193k
...Inversion is pushing the boundaries of what’s possible in space-based defense and logistics. What You’ll Do: As a Senior Mechanical Design Engineer at Inversion, you will play a critical role in the design, packaging, and rapid iteration of hardware across multiple...Permanent employmentFull time$15.63 - $41.54 per hour
Clean Harbors Phoenix, AZ is looking for a Mobile Vehicle Mechanic to join their safety conscious team! This position will be responsible for routine maintenance, inspections, and repairing of all company fleet at branch locations throughout the area. Why work for...Hourly payFull timeTemporary workFlexible hoursNight shift$142k - $189k
...our world class Space Systems team is empowering some of the boldest and most ambitious space missions. MANAGER, MECHANICAL ENGINEERING Based on site at Rocket Lab Robotics in Pasadena, CA, the Manager, Mechanical Engineering will lead and support the mechanical...Permanent employmentFor contractorsLocal areaFlexible hours- ...HVAC Controls Engineer - Los Angeles, CA Our client is a Engineering Design and Commissioning Company that has a national footprint... ...Building Automation Systems (BAS systems) as it pertains to Mechanical / HVAC equipment design in a data center environment. The...For subcontractor
- ...Sr. Opto-Mechanical Engineer Location US-CA-Pasadena Job ID 2026-3423 # Positions 1 Experience (Years) 10 Type of Position Regular Full-Time Level Mid-Level (Non-Manager) Visa Requirements Citizen...Full timeWork at office
$83.6k - $145.2k
...: Position Summary: As a mid-level refrigeration design engineer at Henderson Engineers, you will have the opportunity to contribute... ...: Mid-Level - II Bachelor's degree in mechanical or architectural engineering preferred and 3 years of relevant...Casual workWork at officeFlexible hours- ...Job Description HVAC Project Engineer needed for a well-respected, growing mechanical contractor in California! This company has many years of proven excellence and shows no signs of slowing down!! If you can bring HVAC Project Engineering experience to...For contractors
$24 - $25 per hour
14522 Title: HVAC Engineer Pay Rate: $24-25/HR Hours: Wednesday - Sunday 6:00am to 2:30pm with OT available Location: 627... ...email HVAC Engineer, you will be responsible for maintaining mechanical and electrical equipment for complex commercial HVAC systems...Work at office$138k - $230k
...About the job Senior Mechanical Project Manager Pay: $138,000.00 - $230,000.00 per year Why This Is a Great Opportunity... ...management, estimating, or design experience , a BS in Mechanical Engineering (or related field), and experience developing business. Local...Contract workFor contractorsFor subcontractorWork at officeLocal area$185k - $200k
...Principal Mechanical Engineer Los Angeles, CA K2 is building the largest and highest-power satellites ever flown, unlocking performance levels previously out of reach across every orbit. Backed by $450M from leading investors including Altimeter Capital, Redpoint...Permanent employmentShift work$73k - $88k
...Job Title: Mechanical Design EngineerJob Description The Mechanical Design Engineer will be responsible for designing, validating, and sustaining pressure and temperature sensing products for aerospace applications. This role requires expertise in electromechanical...Permanent employmentWork at officeMonday to Friday$90k - $120k
...job summary: Industry leader seeks a Mechanical Design Engineer to design, develop, and optimize industrial steel pallet racking systems and integrated storage solutions. You should have experience designing racking systems or automated storage retrieval systems (AS...Permanent employmentFull timeTemporary workWork experience placementWork at officeLocal areaRemote workRelocation package- ...united around reindustrializing American manufacturing for the 21st century and beyond. The Role We are seeking a Mechanical Design Engineer to support the development of custom industrial machinery, automation equipment, robotic tooling, and mechanical systems....Permanent employmentLocal areaRelocationFlexible hours
$121.02k - $169.43k
...building sustainable infrastructure for our transport of crew and cargo from Earth to the lunar surface. We are seeking a Mechanical Design Engineer to support NASA's Artemis program by leading the design and development of lunar pump hardware used in water, coolant,...Permanent employmentTemporary workLocal area$125k - $150k
...Mechanical Engineer Los Angeles, CA Parallel Systems is pioneering autonomous battery-electric rail vehicles designed to transform freight transportation by shifting portions of the $900 billion U.S. trucking industry onto rail. Our innovative technology offers cleaner...Full timeInternshipLocal areaShift work- ...Insight Global is seeking a Mechanical Design Engineer II to join the Accurate Landing Team, focused on the development of next-generation reentry and recovery systems. This individual will play a critical role in designing and building mechanical systems for a rapidly...Shift work
$108.97k
...Pacific Light & Hologram, Inc. seeks a Process Engineer in San Gabriel, CA to support the implementation and optimization of semiconductor processing techniques for nanometer and micrometer-scale device fabrication. Master's degree (or foreign equivalent) in Electrical...$129.1k - $146.7k
...to Arup, to your career, to our members and to the clients and communities we serve. Our West Coast mechanical team is looking for a Senior Mechanical Engineer to join our multi-disciplinary team anchored in San Francisco. Arup is known for designing innovative and...Local areaRemote workFlexible hours- ...missions. In this role you will be a member of the Facilities Engineering Section and will report to the Supervisor of the Facilities... ...Responsibilities include but are not limited to: Design mechanical systems to comply with various project scopes of work in accordance...Permanent employmentContract workTemporary workFor contractorsWork experience placementLocal area
- ...Propulsion Mechanical Engineer Apex is seeking a Propulsion Mechanical Engineer to own mechanical designs for our spacecraft propulsion systems. You will drive the design, analysis, and qualification of propulsion hardware that must perform reliably through launch environments...Full timeWork at office
$125k - $155k
...Senior Mechanical Engineer - Advanced Development Location: On-site - California, USA Salary: $125,000 - $155,000 Work Type: Full-time Clearance: US Citizen required About the Role We are hiring a Senior Mechanical Engineer to focus on early-stage...Full time$210k - $235k
...Senior Mechanical Engineer Location: Playa Vista, California (in-person, five days per week) The return lane isn't going to build itself. Come build it with us. Outpost is an orbital logistics company rewriting the rules of global logistics by building...Temporary workPart timeWork at officeLocal areaNight shift- ...job-related skills, experience, and relevant education or training. JOB DESCRIPTION This is an opportunity to be a Mechanical Design Engineer in the Engineering Design group at JPL, which engages in the engineering and design of advanced spacecraft, instruments and...Contract workFor contractorsLocal area
$106.9k - $184.3k
...collaborative team environment. Rotating Equipment Reliability Engineer Job Summary The Marathon Los Angeles Refinery, located in... ...practices. Define expectations and project deliverables related to Mechanical Integrity and reliability requirements, as well as site...Hourly payFull timeH1bLocal areaRelocationVisa sponsorshipWork visa$80k - $120k
...Job Description Job Description Mechanical Engineer / Project Manager Los Angeles Metropolitan Area Direct Hire/ Permanent Placement $80k-$120k, Hybrid, Full Benefits, Bonuses, 401k match EPC STAFF works with Architectural, Engineering, and Construction...Permanent employment
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Mechanical Engineer. Be the first to apply!


