Mechanical engineering jobs in Los Angeles, CA

Long Beach, California

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Today

At Relativity Space, we're building rockets to serve today's needs and tomorrow's breakthroughs. Our Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. But that's just the start. Achieving commercial success with Terran R will unlock new opportunities to advance science, exploration, and innovation, pioneering progress that reaches beyond the known. Joining Relativity means becoming part of something where autonomy, ownership, and impact ex

Full-time

USD 128,000.00 - 176,000.00 per year

Specialist, Mechanical Engineering

Yorba Linda, California

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Today

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris is the Trus

Full-time

USD 88,500.00 - 164,500.00 per year

Tech 1, Mechanical Engineering

Brea, California

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Today

Job Description: We are seeking a Product Development Tech for our Brea, CA facility. This person contributes to the completion of routine technical tasks and develops solutions to routine technical problems of specified scope. Their contacts are primarily with immediate supervisor, project leaders, and other professionals in the unit. Responsibilities: Gathers, maintains, formats, compiles, and manipulates technical data, such as laboratory or material test results and engineering design change

Full-time

Director, Mechanical Engineering, Tooling

Long Beach, California

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Today

Full-time

USD 195,000.00 - 268,500.00 per year

Sr Director, Mechanical Engineering, Tooling

Long Beach, California

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Today

Full-time

USD 223,000.00 - 307,000.00 per year

Mechanical Engineering Consultant 2 - Nuclear

Remote

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Today

Description This position will offer you the opportunity to manage project(s) consisting of engineers, designers, controls and scheduling professionals involved in the design, modification, and analysis of new and existing nuclear power plant modifications. The position will involve coordinating with multiple internal and external departments to manage the life cycle of project execution. Responsible for project execution, coordination of resources from each discipline as requiredTake ownership

Full-time

USD 142,710.00 - 215,440.00 per year

Manager, Avionics Mechanical Design Engineering

Long Beach, California

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Today

Full-time

USD 154,000.00 - 211,000.00 per year

Mechanical Engineering Senior Consultant - Nuclear

Remote

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Today

Part-time

Compensation information provided in the description

Mechanical Engineering Consultant 2 (Power Uprates) - Nuclear

Remote

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Today

Description This will be a remote Mechanical Analysis position to support Power Uprates. Our electric power generation clients are seeking to increase the power output of their existing power plants to meet the electric demands. This is expanding work in the nuclear industry. You will work on major systems, equipment and plant process in the following areas: Perform consulting level work for power uprates in the nuclear industry.Interface with clients and project teams to present technical dis

Full-time

USD 142,710.00 - 215,440.00 per year

Opto-Mechanical Engineering Manager

Remote or Goleta, California

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Today

Job Description You will be the Opto-Mechanical Engineering Manager for the Lockheed Martin Missiles & Fire Control (MFC) organization. Our team develops cutting edge infrared (IR) sensors for missile and aerospace applications, delivering high performance mechanical designs that enable precision, durability and survivability. What You Will Be Doing As the Opto-Mechanical Engineering Manager you will provide functional, group and technology leadership for a multidisciplinary mechanical enginee

Full-time

USD 128,400.00 - 226,435.00 per year

Mechanical Design Engineer (Building Engineering)

Remote or Seattle, Washington

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Today

Arcadis is the world's leading company delivering sustainable design, engineering, and consultancy solutions for natural and built assets. We are more than 36,000 people, in over 70 countries, dedicated to improving quality of life. Everyone has an important role to play. With the power of many curious minds, together we can solve the world's most complex challenges and deliver more impact together. Role description: Arcadis is seeking an experienced Mechanical Engineer (HVAC) heating, ventil

Full-time

USD 80,000.00 - 115,000.00 per year

Engineer VI

El Segundo, California

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Today

Job Summary General Atomics ASI is hosting and Invitational Hiring Event at our newest facility in El Segundo, CA on April 30th and May 1st. We are looking to fill the following Senior, Staff and Senior Staff Engineering positions in our El Segundo and San Diego offices: Survivability Engineer Survivability Integration Engineer IR Designer & Analyst Flight Autonomy Architect Low Observable Design & Integration Engineer Survivability Materials and Process Engineer Loads and Dynamics Engineer St

Full-time

GSE Mechanical Engineers (Sys GSE)

Los Angeles, California

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Today

Location: Los Angeles, CA Salary: $50.00 USD Hourly - $60.00 USD Hourly Description: Title: GSE Mechanical Engineers Duration: 3 Month+ Location: Los Angeles, CA 2 openings Duties: Provide on-site support for hardware integration activities. Responsibilities include supporting integration across multiple hardware elements, assisting with MGSE design and development, helping plan and execute integration activities, troubleshooting hardware/interface issues, and supporting ECNs in coordination

Contract

USD 50.00 - 60.00 per hour

Tech 3, Mechanical Engineering

Brea, California

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Today

Job Description: We are seeking a Product Development Tech for our Brea, CA facility. This person contributes to the completion of routine technical tasks and develops solutions to routine technical problems of specified scope. Their contacts are primarily with immediate supervisors, project leaders, and other professionals in the unit. Responsibilities: Gathers, maintains, formats, compiles, and manipulates technical data, such as laboratory or material test results and engineering design chan

Full-time

MEP Commissioning Engineer

Los Angeles, California

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Today

JLL empowers you to shape a brighter way. Our people at JLL are shaping the future of real estate for a better world by combining world class services, advisory and technology for our clients. We are committed to hiring the best, most talented people and empowering them to thrive, grow meaningful careers and to find a place where they belong. Whether you?ve got deep experience in commercial real estate, skilled trades or technology, or you?re looking to apply your relevant experience to a new i

Full-time

Skilled Rack Systems HVAC/R Service Technician - Commercial & Industrial

Los Angeles, California

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Today

Overview: At CoolSys, we offer more than just a job?we provide stability, growth, and industry-leading benefits for our employees. As a large company serving diverse customers, we invest in our team with: Competitive Compensation:Competitivepay from $45.00 hr - $60 hr range and sign-on bonus up to $5,000 DOERelocation Available!Ongoing Education & Training:Access to state-of-the-art facilities and paid online training.Comprehensive Benefits:Medical, Dental, Vision, and Prescription coverage, pai

Full-time

Compensation information provided in the description

Integration Technicians

El Segundo, California

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Today

Location: El Segundo, CA Salary: $43.00 USD Hourly - $45.00 USD Hourly Description: Job Title: Integration Technician Duration: 12-week contract (Starting ASAP) Work Type: Onsite (In-person only) Location: El Segundo, CA 90245 Pay: $45/hr. on W2 About the Role We are seeking Integration Technicians to support hands-on assembly and integration activities for prototype, test, or production hardware. This role involves close collaboration with engineering and operations teams and requires s

Contract

USD 43.00 - 45.00 per hour

Senior Mechanical Design Engineer MEP

Santa Clarita, California

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8d ago

The Senior Mechanical Engineer will lead MEP design efforts, mentor junior staff, and help drive the continued growth of our firm. This role requires hands-on HVAC and plumbing design in Revit, strong leadership skills, and a practical understanding of construction. The ideal candidate is collaborative, detail-oriented, and ready to take an active role in project delivery, internal training, and business development. Key Responsibilities: Lead HVAC and plumbing system design for a range of buil

Easy Apply

Full-time

100,000 - 130,000

Tech 2, Mechanical Engineering

Brea, California

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Today

Full-time

Engineering Intern - Energy (Summer 2026)

Pasadena, California

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Today

Learning begins in the classroom but there's no better place to gain real-world experience than with Stantec. Interns are an integral part of our teams, working to solve some of the world's most complex challenges. As an intern, you'll work alongside our experienced practitioners and with our clients and communities. This hands-on experience will equip you with practical skills, build your network, and provide opportunities that set you up for success. Explore a career that takes on one of the w

Full-time

USD 23.47 - 34.50 per hour

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Mechanical engineering jobs in Los Angeles, CA, USA