Staff Mechanical Component Engineer

Lumentum Japan, Inc.; San Jose (CA); On-site; USD 112,000 - 160,000; Full time

Benefits offered by this job

Annual bonus

Equity

Health benefits

Job summary

Lumentum is seeking a Mechanical Component Engineer to manage the selection, qualification, lifecycle, and reliability of mechanical components for optical, telecom, and electronic products.

You will collaborate with Mechanical Design, R&D, Supplier Quality, Procurement, Manufacturing, and suppliers to ensure that design, performance, quality, and long-term availability meet criteria across the product lifecycle.

Qualifications

• Bachelor’s degree in Mechanical, Materials, or Manufacturing Engineering.
• 5+ years in mechanical component engineering or related fields.
• Strong knowledge of machining, stamping, molding, casting, extrusion, plating, and assembly.

Responsibilities

• Collaborate with Engineering and Supplier Quality to drive manufacturability into design.
• Own Component Engineering activities: requirements, selection, qualification, lifecycle, reliability.
• Collaborate to define component specs, drawings, CTQs, tolerances, acceptance criteria.
• Lead qualification of new and alternate mechanical components (dimensional, material, environmental).
• Partner with Supply Chain on alternate-source development and risk assessment.
• Assess performance, materials, processes, tolerance stack-ups, and reliability risks.
• Evaluate PCNs, EOLs, and engineering changes for impact.
• Lead problem-solving and failure analysis for component-related issues.

Skills

Mechanical design judgment

Tolerance analysis

Metrology

Cross-functional collaboration

Supplier technical collaboration

Root-cause analysis

Education

Bachelor’s in Mechanical Engineering

Bachelor’s in Materials Engineering

Bachelor’s in Manufacturing Engineering

Tools

Creo

SolidWorks

CATIA

ASME Y14.5

CMM

Job description

It's fun to work in a company where people truly BELIEVE in what they're doing!
We're committed to bringing passion and customer focus to the business.

If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!

About Lumentum

At Lumentum, we’re building the tech behind the world’s fastest networks and most advanced systems. Our optical and photonic solutions power everything from AI and cloud computing to data centers, telecom, and advanced manufacturing.

We’re a global team of innovators working where light meets technology, solving big challenges that keep the world connected and moving forward. If shaping the future of connectivity excites you, you’ll fit right in.

Why You’ll Love This Role

The Mechanical Component Engineer is responsible for the selection, qualification, approval, lifecycle management, and reliability oversight of mechanical components used in optical, telecom, datacom, and electronic products.

The candidate will work closely with Mechanical Design, R&D, Supplier Quality, Procurement, Manufacturing, Compliance, and suppliers to ensure that mechanical components meet design, performance, quality, reliability, cost, and long-term availability requirements.

Key Responsibilities

• Collaborate with Engineering and Supplier Quality to drive manufacturability into mechanical component design and selection.
• Own Component Engineering activities for mechanical components, including technical requirements, selection, qualification, lifecycle management, reliability, and engineering change assessment.
• Collaborate with R&D and Supplier Quality to drive manufacturability into mechanical component design, specifications, and selection.
• Define and review component specifications, drawings, CTQs, tolerances, and acceptance criteria to ensure robust and manufacturable designs.
• Lead technical qualification of new and alternate mechanical components, including dimensional, material, functional, environmental, and reliability validation.
• Partner with Supply Chain and Supplier Quality on alternate-source development, providing technical qualification and component risk assessment.
• Assess mechanical component performance, materials, manufacturing processes, tolerance stack-ups, and reliability risks throughout the product lifecycle.
• Evaluate PCNs, EOLs, material/process changes, and engineering changes for technical and product impact.
• Lead technical problem-solving and failure analysis for component-related issues, partnering with Supplier Quality on supplier corrective actions.
• Support R&D, Manufacturing, and Contract Manufacturers in resolving component-related design, assembly, manufacturability, and production issues.
• Establish and maintain mechanical component engineering standards, qualification requirements, and technical documentation .

Required Qualifications

• Bachelor’s degree in Mechanical Engineering, Materials Engineering, Manufacturing Engineering, or a related discipline.
• Five or more years of experience in mechanical component engineering, mechanical design, supplier quality, manufacturing engineering, or a related field.
• Strong knowledge of mechanical components, materials, and manufacturing processes used in precision electromechanical, electronic, or optical products.
• Experience interpreting mechanical drawings, specifications, material standards, and inspection reports.
• Strong understanding of manufacturing processes such as machining, stamping, molding, casting, extrusion, plating, surface finishing, and mechanical assembly.
• Working knowledge of tolerance analysis, dimensional control, metrology, and root-cause analysis.
• Experience reviewing material certifications, RoHS/REACH declarations, certificates of compliance, and supplier quality documentation.
• Ability to evaluate mechanical and material risks associated with environmental exposure, vibration, shock, thermal cycling, corrosion, and long-term operation.
• Strong analytical, problem-solving, communication, and technical-writing skills.
• Ability to manage multiple technical activities and work effectively with global suppliers and cross-functional engineering teams.

Preferred Qualifications

• Experience with optical communication, telecom, datacom, photonics, electronics, aerospace, medical, or other high-reliability products.
• Experience with precision mechanical components, tight-tolerance assemblies, and mechanical interfaces used in optical or electronic products.
• Experience with 3D CAD tools such as Creo, SolidWorks, CATIA, or equivalent.
• Experience with GD&T standards such as ASME Y14.5.
• Experience with dimensional and mechanical characterization methods, including CMM, surface-finish measurement, and coating/thickness measurement.
• Experience with component lifecycle and engineering change management, including PCNs, EOLs, engineering changes, and alternate-component qualification.
• Familiarity with applicable mechanical, material, reliability, and industry standards.
• Experience with thermal management, thermal interface materials, and thermal-mechanical design is a plus.

Key Competencies

• Mechanical engineering judgment
• Materials and manufacturing-process knowledge
• Component reliability and technical risk assessment

• Dimensional and tolerance analysis
• Data-driven root-cause problem solving
• Cross-functional and supplier technical collaboration
• Ability to influence without direct authority

Pay Range:
P60-USA-1 :$112,050.00 - $160,050.00
Disclaimer:

Final base salary for the successful candidate will depend on multiple factors, including but not limited to, job location, where work will be performed, qualifications, work history and relevant experience. With our continual goal of making Lumentum a best place to work for our employees, we strive to offer employees competitive total compensation packages, which may include annual bonus, commission for certain sales roles, equity, and health and welfare benefits.