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Lumentum

Mechanical Design Engineer

Thailand - Pathumthani (Navanakorn)

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hirly's read of this role

Seniority
Mid level
Country
TH
Work mode
On-site / unstated
First seen by hirly
21 Oct 2026

Derived automatically from the posting. Upload your resume above to see how the role scores against it.

the posting

  • 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!

We are seeking an experienced Staff Mechanical Designer to lead the design and development of fixtures, jigs, and tooling to support manufacturing, testing, and engineering operations. This role requires strong hands-on design capability, deep knowledge of design for manufacturability (DFM) , and the ability to work independently with minimal supervision.

The candidate is expected to take full ownership of assignments, solve design problems independently, communicate effectively with cross-functional teams, and deliver practical, manufacturable solutions from concept through release.

Key Responsibilities

Design and develop fixtures, jigs, tooling, and mechanical support equipment for manufacturing and engineering applications.

Create detailed 3D models, 2D drawings, BOMs, and design documentation using CAD tools.

Ensure designs meet requirements for functionality, manufacturability, cost, quality, safety, and reliability .

Apply strong DFM/DFA principles to optimize designs for machining, fabrication, assembly, and production use.

Work closely with manufacturing, process, test, quality, and engineering teams to understand needs and convert them into practical design solutions.

Select appropriate materials, tolerances, surface finishes, and standard components based on application and manufacturing methods.

Support prototype builds, design reviews, debugging, and design improvements based on shop floor feedback.

Coordinate with internal and external fabrication suppliers to ensure designs are producible and delivered on schedule.

Drive problem-solving for fixture performance, durability, ergonomics, and usability.

Manage multiple projects independently and complete tasks with little or no day-to-day oversight.

Provide technical guidance and share best practices with junior team members when needed.

Required Qualifications

Bachelor’s degree in Mechanical Engineering or related field, or equivalent practical experience.

More than 15 years of experience in mechanical design , with strong focus on fixture, jig, and tooling design .

Strong knowledge of manufacturing processes such as machining, sheet metal fabrication, welding, assembly, and precision mechanical components.

Strong understanding of design for manufacturability (DFM) and practical engineering design.

Proficiency in CAD software for 3D modeling and detailed drawing creation.

Ability to independently develop designs from concept to final release.

Strong problem-solving and troubleshooting skills.

Good communication skills , with the ability to clearly work with engineers, technicians, suppliers, and manufacturing teams.

Ability to balance technical requirements, cost, schedule, and manufacturability.

Preferred Qualifications

Experience designing tooling or fixtures for high-volume manufacturing , test processes, or automation environments.

Familiarity with tolerance stack-up, GD&T, and mechanical design standards.

Experience working directly with machine shops, suppliers, and contract manufacturers.

Knowledge of fixture validation, ergonomic considerations, and continuous improvement in production environments.

Key Competencies

Independent execution

Mechanical design expertise

Fixture and jig design capability

Manufacturability and cost awareness

Cross-functional collaboration

Clear written and verbal communication

Ownership and accountability

Practical problem-solving

Work independently and complete assignments without close supervision

Make sound technical decisions within their area of responsibility

Lead design activities from concept through implementation

Identify risks early and propose practical solutions

Communicate effectively across functions and influence design direction through technical judgment

We are an equal opportunity employer and value diversity at our company.

We do not discriminate on the basis of race, religion, color, national origin, sex, gender, gender expression, sexual orientation, age, marital status, veteran status, or disability status.

We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment.

Please contact us to request accommodation.

Original posting on Lumentum's site ↗

Listed on hirly, a job board. hirly is not the employer: Lumentum is hiring for this role.

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