Maintenance Manager

Westmag; South San Francisco (CA); On-site; USD 120,000 - 170,000; Full time

Job summary

Westmag, a U.S. manufacturer of drone motors and robot actuators, seeks a Maintenance Manager to build and lead the maintenance function for our South San Francisco facility.

You will own predictive, preventive, and corrective maintenance, develop a team of technicians, and partner with production and engineering to maximize uptime as we scale manufacturing. This on-site role requires Cal/OSHA compliance and strong leadership.

Qualifications

• 7+ years maintenance experience in a manufacturing environment, including 3+ years supervising technicians.
• Hands-on troubleshooting across electrical, mechanical, pneumatic, hydraulic and PLC systems.
• Experience building or running a preventive maintenance program and using a CMMS for work orders and PM scheduling.
• Working knowledge of 120V/240V/480V electrical systems; ability to read schematics, ladder diagrams, P&ID drawings and equipment manuals.
• Strong knowledge of lockout/tagout and OSHA requirements.
• Experience managing spare parts, vendors and service contractors.
• Ability to track maintenance KPIs and present them clearly to leadership.
• Clear written and verbal communication and the ability to train a team.

Responsibilities

• Build and lead Westmag's maintenance function, including hiring, training, scheduling and developing maintenance technicians.
• Own the preventive and predictive maintenance program for production and facility equipment and set PM frequencies based on equipment criticality and failure history.
• Lead response to emergency breakdowns and unplanned downtime and coordinate repairs with production to minimize lost output.
• Drive root-cause analysis on recurring failures and implement corrective actions that improve uptime and mean time between failures.
• Set up and administer the CMMS, including work orders, PM schedules, asset records and parts usage.
• Track and report maintenance KPIs such as equipment uptime, MTBF, MTTR, PM compliance and maintenance cost.

Skills

Maintenance leadership

Preventive maintenance

CMMS

Electrical systems

Mechanical systems

Electrical schematics

Safety compliance

Vendor management

KPIs reporting

Team training

Education

GED or higher

Tools

CMMS software

Job description

About Westmag

Westmag is the American manufacturer of drone motors and robot actuators, backed by Andreessen Horowitz, Founders Fund, Lux Capital, NFDG, Menlo Ventures, and other top investors. Westmag is committed to building and scaling in the U.S. to serve the global market. For more information, visit westmag.com.

About the role

As Maintenance Manager at Westmag, you will build and lead the maintenance function that keeps our production lines and facilities running as we scale manufacturing of drone motors and robot actuators. You will own predictive, preventive and corrective maintenance strategy, build a team of maintenance technicians, and partner with production and engineering to maximize uptime and equipment reliability. This role is central to bringing up our new South San Francisco facility and the automated lines that will drive our next phase of growth.

Responsibilities

• Build and lead Westmag's maintenance function, including hiring, training, scheduling and developing maintenance technicians.
• Own the preventive and predictive maintenance program for production and facility equipment and set PM frequencies based on equipment criticality and failure history.
• Lead response to emergency breakdowns and unplanned downtime and coordinate repairs with production to minimize lost output.
• Drive root-cause analysis on recurring failures and implement corrective actions that improve uptime and mean time between failures.
• Set up and administer the CMMS, including work orders, PM schedules, asset records and parts usage.
• Track and report maintenance KPIs such as equipment uptime, MTBF, MTTR, PM compliance and maintenance cost.
• Manage the spare parts inventory, critical spares list and relationships with equipment vendors and service contractors.
• Own the maintenance budget and recommend repair-versus-replace decisions for aging equipment.
• Partner with production engineering on installation, commissioning and handoff of new and automated equipment, including the new facility move.
• Ensure maintenance work complies with Cal/OSHA requirements, including lockout/tagout (8 CCR §3314), electrical safety, working at heights and confined space procedures.
• Maintain compressed air, HVAC, electrical distribution, lighting, plumbing and general facility infrastructure through the team and outside contractors.
• Develop maintenance SOPs, equipment documentation and technician training programs.
• Provide hands‑on troubleshooting support on complex electrical, mechanical, pneumatic, hydraulic and PLC-controlled equipment as needed.

Required qualifications

• GED, high school diploma, or higher.
• 7+ years of maintenance experience in a manufacturing or industrial environment, including 3+ years supervising or leading maintenance technicians.
• Hands‑on ability to troubleshoot electrical, mechanical, pneumatic, hydraulic and PLC‑controlled systems.
• Experience building or running a preventive maintenance program and using a CMMS for work orders and PM scheduling.
• Working knowledge of 120V/240V/480V electrical systems, and the ability to read electrical schematics, ladder diagrams, P&ID drawings and equipment manuals.
• Strong knowledge of lockout/tagout, electrical safety and Cal/OSHA or federal OSHA requirements.
• Experience managing spare parts, vendors and service contractors.
• Ability to track maintenance KPIs and present them clearly to production and leadership.
• Clear written and verbal communication and the ability to train and coach a team.
• Authorized to work in the United States.
• Valid California driver's license.
• Ability to pass a pre‑employment background check and drug screening.

Preferred qualifications

• Associate's or bachelor's degree in an engineering, industrial maintenance or related technical field or equivalent years work related experience.
• Experience maintaining high‑volume or automated production equipment (automotive, electronics, motors etc.).
• Experience standing up a maintenance function or commissioning equipment in a new facility.
• Experience with reliability practices such as TPM, RCM or condition monitoring (vibration, thermography).
• Certified Maintenance & Reliability Professional (CMRP) or similar certification.

Work environment & physical requirements

• On‑site role in an active production environment with exposure to machinery, electrical systems and moderate noise.
• Ability to lift and carry up to 50 lb unassisted.
• Ability to work at height on ladders and elevated platforms and within confined spaces.
• Ability to stand, kneel, crouch and reach for extended periods during hands‑on troubleshooting.
• PPE required including safety glasses, steel‑toed footwear, hearing protection and gloves as applicable.
• Exposure to lubricants, solvents and cleaning agents; proper handling training provided.
• Availability for on‑call escalation and occasional overtime to support maintenance emergencies and equipment installs.

Westmag is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, creed, sex, national origin, disability, gender identity, sexual orientation, or protected veteran status.