Lead Process Engineer AllSTEM Connections - 3.9 Ontario, CA Job Details $110,000 - $140,000 a year 1 day ago Benefits Health insurance Dental insurance 401(k) Vision insurance Paid sick time Qualifications Process flow diagrams Operational analysis Technical engineering Performance improvement leadership Coaters Production data analysis Defect resolution root cause analysis Chemical Engineering Team leadership Preventive action implementation Design of manufacturing processes Materials engineering experience within manufacturing Technical writing experience within manufacturing Production deviation management Engineering process optimization Quality control preventive actions Corrective and preventive actions (CAPA) Chemical process improvement projects Manufacturing standard operating procedures Industrial plating Quality standards in production Collaboration with manufacturing teams Cost reduction analysis Operational excellence initiatives Technical troubleshooting support Senior level Quality improvement programs in engineering Standard operating procedures (SOPs) Machine finishing Product quality failure Full Job Description Job Summary We are seeking a Lead Process Engineer for a direct hire opportunity in Temecula, CA, supporting high-precision manufacturing for aerospace, defense, and commercial applications. This role is ideal for an engineering professional with a strong background in materials science, metallurgy, manufacturing engineering, or chemical engineering who enjoys solving complex process challenges and improving production performance. The Lead Process Engineer will develop, optimize, validate, and sustain manufacturing processes used in precision optical components, coatings, and assemblies. This is a highly collaborative environment with strong cross-functional teamwork across Manufacturing, Quality, Production, and Engineering. The role offers the opportunity to influence process strategy, improve yields, support advanced manufacturing technologies, and provide technical leadership in a stable, quality-focused operation. This is a strong opportunity for someone who values supportive leadership, technical challenge, process ownership, and the ability to make a measurable impact on product quality, manufacturing efficiency, and operational reliability. Key Responsibilities Develop, implement, validate, and continuously improve manufacturing processes for precision optical components, coatings, and assemblies. Analyze production data, process trends, and manufacturing metrics to identify opportunities for yield improvement, cost reduction, and throughput gains. Support vacuum coating, electroforming, plating, machining, finishing, and related operations through process optimization and troubleshooting. Lead root cause analysis for process deviations, nonconformances, and quality issues, including support for CAPA and continuous improvement initiatives. Create and maintain SOPs, work instructions, process flow diagrams, control plans, manufacturing specifications, and technical reports. Partner with Manufacturing, Quality, Production, Engineering, suppliers, and customers to resolve technical issues and ensure process consistency and product conformity.

Compensation and Benefits Salary range:

$110,000 to $140,000 per year.

Job type:

Direct hire.

Location:

Temecula, CA. Equal Opportunity Employer / Disabled / Protected Veterans The Know Your Rights poster is available here: https://www.eeoc.gov/sites/default/files/2023-06/22-088_EEOC_KnowYourRights6.12.pdf The pay transparency policy is available here: https://www.dol.gov/sites/dolgov/files/ofccp/pdf/pay-transp_%20English_formattedESQA508c.pdf For temporary assignments lasting 13 weeks or longer, the Company is pleased to offer major medical, dental, vision, 401k and any statutory sick pay where required. We are committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation for any part of the employment process, please contact your staffing representative who will reach out to our HR team. AllSTEM Connections participates in the E-Verify program in certain locations as required by law. Learn more about the E-Verify program.

https:

//e-verify.uscis.gov/web/media/resourcesContents/E-Verify_Participation_Poster_ES.pdf We also consider for employment qualified applicants regardless of criminal histories, consistent with legal requirements, including, if applicable, the City of Los Angeles' Fair Chance Initiative for Hiring Ordinance. Pursuant to applicable state and municipal Fair Chance Laws and Ordinances, we will consider for employment-qualified applicants with arrest and conviction records, including, if applicable, the San Francisco Fair Chance Ordinance. For Los Angeles, CA applicants: Qualified applications with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. #3421