Mechanical Design Engineer

Reposted 9 Hours Ago
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Pathumthani, Pathum Thani, THA
In-Office
Expert/Leader
3D Printing • Marketing Tech • Design
The Role
Design and develop fixtures, jigs, tooling, and mechanical support equipment for manufacturing; manage multiple projects and ensure designs meet manufacturing requirements.
Summary Generated by Built In

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.

Skills Required

  • Bachelor's degree in Mechanical Engineering or related field
  • More than 15 years of experience in mechanical design
  • Strong knowledge of manufacturing processes
  • Strong understanding of design for manufacturability (DFM)
  • Proficiency in CAD software for 3D modeling

Lumentum Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Lumentum and has not been reviewed or approved by Lumentum.

  • Equity Value & Accessibility Equity is positioned as a meaningful part of total compensation, with RSUs frequently framed as a valued component of offers. An employee stock purchase plan with a discount and look-back further reinforces equity access as part of rewards.
  • Retirement Support Retirement benefits are presented as a clear strength, with a 401(k) match and immediate vesting highlighted as supportive features. Auto-enrollment and match eligibility details indicate a structured retirement program for U.S. employees.
  • Healthcare Strength Multiple medical plan options are described, including PPO and HDHP/HSA choices and Kaiser in some locations, suggesting breadth and choice in coverage. Health and well-being programming is also characterized as part of a comprehensive benefits approach.

Lumentum Insights

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The Company
HQ: San Jose, CA
3,219 Employees

What We Do

Lumentum (NASDAQ: LITE) is a market-leading designer and manufacturer of innovative optical and photonic products enabling optical networking and laser applications worldwide. Lumentum optical components and subsystems are part of virtually every type of telecom, enterprise, and data center network. Lumentum lasers enable advanced manufacturing techniques and diverse applications including next-generation 3D sensing capabilities. Lumentum is headquartered in San Jose, California with R&D, manufacturing, and sales offices worldwide. For more information, visit www.lumentum.com.

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