Job Description

Ultimate Staffing is actively seeking a dedicated and experienced Mechanical Engineer to join their client's team in California. This exciting opportunity is perfect for a professional ready to lead innovative projects and contribute to the development of cutting-edge technologies. The successful candidate will be involved in a range of engineering tasks, from design to implementation, with a focus on thermal battery systems.

• Own subsystem design by leading the architecture, analysis, detailed design, and testing of structural, thermal, and fluid components within thermal batteries.
• Perform rigorous analysis through calculations, finite element analysis (FEA), and trade studies to guide design decisions.
• Drive validation and reliability by leading prototyping, testing, and root cause analysis to ensure robust, reliable hardware.
• Pursue cost-down initiatives by identifying and implementing design and manufacturing approaches that reduce cost without sacrificing performance.
• Collaborate cross-functionally to define system requirements, lead design reviews, and integrate feedback across teams.
• Establish best practices by developing and maintaining CAD standards, documentation, and engineering infrastructure.
• Mentor and lead junior engineers, serving as a technical lead.

• Bachelor's degree in Mechanical Engineering required.
• Senior Engineer: 6+ years relevant industry experience (Bachelor's) OR 4+ years (Master's) OR PhD.
• Staff Engineer: 10+ years relevant industry experience (Bachelor's) OR 8+ years (Master's) OR PhD with 4+ years.
• Examples of relevant industry experience include power generation, aerospace, propulsion, or other industrial hardware products.
• Proven track record of taking complex mechanical systems from concept to deployed hardware.
• Strong proficiency with CAD (SolidWorks or similar), PDM systems, and creating detailed drawings (GD&T, ASME Y14.5).
• Deep experience with machined components for low- to mid-volume production; additional experience with sheet metal, castings, or composites is a plus.
• Proficiency in structural and/or thermal analysis (FEA and hand calculations).
• Familiarity with systems analysis and risk management tools such as FMEA.
• Experience developing engineering processes, standards, and best practices.

Monday through Friday, during first shift hours.

The role offers competitive compensation, with a salary range between $120,000 and $190,000, dependent on experience and qualifications.

All qualified applicants will receive consideration for employment without regard to race, color, national origin, age, ancestry, religion, sex, sexual orientation, gender identity, gender expression, marital status, disability, medical condition, genetic information, pregnancy, or military or veteran status. We consider all qualified applicants, including those with criminal histories, in a manner consistent with state and local laws, including the California Fair Chance Act, City of Los Angeles' Fair Chance Initiative for Hiring Ordinance, and Los Angeles County Fair Chance Ordinance. For unincorporated Los Angeles county , to the extent our customers require a background check for certain positions, the Company faces a significant risk to its business operations and business reputation unless a review of criminal history is conducted for those specific job positions.

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