Senior Mechanical Engineer

We are seeking a Senior Mechanical Engineer to lead the design and development of high-speed rotating equipment and centrifugal compressor systems. The individual will be responsible for mechanical design efforts across rotor systems, pressure-containing components, and auxiliary systems while supporting analysis, manufacturability, and testing.

Responsibilities

• Lead the design of centrifugal compressor systems and major components.
• Design high-speed rotating assemblies, pressure casings, and structures.
• Perform engineering analysis including rotor dynamics, stress, fatigue, thermal performance, vibration, and modal analysis.
• Conduct bearing load calculations.
• Create detailed CAD models and manufacturing drawings with GD&T.
• Define specifications for bearings, seals, lubrication systems, and instrumentation.
• Collaborate with manufacturing and suppliers on machining, balancing, and material selection.
• Support prototype builds and testing, including overspeed, hydrostatic, leak, and run testing.
• Conduct root cause analysis and troubleshoot failures.
• Ensure compliance with standards such as API, UL, and IEC.

• 5 years of turbomachinery or compressor design experience.
• Bachelor’s degree in Mechanical Engineering or related field.
• Proficiency in designing mechanical systems, preferably for pressure equipment and rotating equipment.
• Understanding of rotor dynamics, bearings and seal systems, pressure vessels, and piping systems.
• Experience with CAD and FEA tools.
• Skills in creating manufacturing drawings and specifications.

• Experience with turbomachinery and compressor design, specifically centrifugal systems.
• Knowledge of rotor dynamics and high-speed rotating equipment.
• Familiarity with FEA/simulation tools such as ANSYS and MATLAB.
• Proficiency in SolidWorks, CAD modeling, and GD&T.

The work environment is engineering-driven with a focus on product development and collaboration between engineering, manufacturing, and testing teams. It involves a mix of design work and hands-on prototype/test support in a fast-paced, highly technical, and innovation-focused setting. The role emphasizes reliability, performance, and regulatory compliance.

Job Type & Location

This is a Contract to Hire position based out of Cerritos, CA.

The pay range for this position is $70.00 - $90.00/hr.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:
• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)

This is a fully onsite position in Cerritos,CA.

This position is anticipated to close on Jun 16, 2026.

About Actalent

Actalent is a global leader in engineering and sciences services and talent solutions. We help visionary companies advance their engineering and science initiatives through access to specialized experts who drive scale, innovation and speed to market. With a network of almost 30,000 consultants and more than 4,500 clients across the U.S., Canada, Asia and Europe, Actalent serves many of the Fortune 500.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing process due to a disability, please email actalentaccommodation@actalentservices.com for other accommodation options.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.

Salary : $70 - $90