Senior Operations Manager — Electronics Manufacturing & Lean

Flex; Milpitas (CA); On-site; USD 110,000 - 150,000; Full time

Job summary

Flex is seeking an Operations Manager to lead day-to-day manufacturing operations in Milpitas, CA, overseeing SMT, PCBA, mechanical, backend, and cleanroom areas to ensure safe, efficient production aligned with SQDCI targets.

You will drive continuous improvement, coach a high-performing team, and coordinate with cross-functional partners to deliver on efficiency, quality, and delivery goals. A Bachelor’s degree and 5+ years in electronics manufacturing leadership are required.

Qualifications

• Bachelor’s degree in Engineering, Industrial Engineering, Operations Management, Manufacturing, Business, or related field; equivalent experience may be considered.
• 5+ years of manufacturing operations leadership experience within electronics manufacturing or a similar industry.
• Proven experience leading supervisors, team leads, and production teams in high‑volume environments.
• Strong knowledge of SMT, PCBA, system integration, mechanical assembly, backend manufacturing, and cleanroom operations.
• Expertise in Lean Manufacturing, Six Sigma, Kaizen, and continuous improvement methodologies; Lean Six Sigma certification preferred.
• Working knowledge of production planning, inventory control, quality systems, KPIs, and operational performance improvement.
• Proficiency with ERP, MES, and Microsoft Office applications; data-driven decision making.
• Strong leadership, communication, coaching, and team-building skills; EMS experience and IPC standards knowledge preferred.

Responsibilities

• Lead daily manufacturing operations across SMT, PCBA, mechanical assembly, backend assembly, and cleanroom production areas.
• Drive execution of production plans to achieve Safety, Quality, Delivery, Cost, and Inventory (SQDCI) objectives.
• Ensure production schedules are met while maintaining customer, regulatory, and quality compliance.
• Monitor and improve key operational metrics, including throughput, OEE, productivity, FPY, labor efficiency, and inventory performance.
• Partner with cross-functional teams to resolve operational challenges and support business growth initiatives.
• Implement continuous improvement initiatives using Lean Manufacturing, Six Sigma, Kaizen, and visual management principles.
• Develop workforce capabilities through coaching, training, performance management, and succession planning.
• Lead problem-solving, corrective actions, capacity planning, NPI, and resource allocation to drive operational excellence.

Skills

Lean Manufacturing

Six Sigma

Kaizen

Leadership

ERP/MES

SMT/PCBA

Data-driven decisions

Cross-functional collaboration

Education

Bachelor's degree in Engineering

Tools

ERP

MES

Microsoft Office

Job description

Flex is seeking an Operations Manager to lead day-to-day manufacturing operations in Milpitas, CA, overseeing SMT, PCBA, mechanical, backend, and cleanroom areas to ensure safe, efficient production aligned with SQDCI targets.

You will drive continuous improvement, coach a high-performing team, and coordinate with cross-functional partners to deliver on efficiency, quality, and delivery goals. A Bachelor’s degree and 5+ years in electronics manufacturing leadership are required.