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Senior Mechanical Engineer

Lumentum.com

Office

Pathumthani (Navanakorn)

Full Time

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!

Senior Mechanical Engineer
Lumentum (NASDAQ: LITE) is a global leader in the manufacturing of innovative optical and photonic products, powering optical networking and commercial laser applications worldwide. Our optical components and subsystems are integral to diverse networks, spanning telecom, enterprise, and data centre environments. Lumentum’ s innovative lasers drive sophisticated manufacturing techniques and 3D sensing capabilities, making an impact across industries. Headquartered in Milpitas, California, Lumentum has a global presence with R&D, manufacturing, and sales offices worldwide. For comprehensive information, please visit www.lumentum.com.


Lumentum Switzerland AG, as a prominent design centre for ultrafast pico- and femtosecond laser systems, offers outstanding performance and stability, primarily catering to commercial applications in the micromachining markets.
We're currently seeking a Senior Mechanical Design Engineer to join our and fast-paced international development team. This role demands strong skills to lead product development, ensuring a seamless transition to volume production.

Job Responsibilities:

  • Undertake component and system level design, analysis, and validation.
  • Innovate conceptual layouts, prototype packaging, and design fixtures and tooling.
  • Drive mechanical design of sophisticated laser systems.
  • Implement design strategies for quality (DFQ) and manufacturability (DFM).
  • Conduct design verification testing (DVT).
  • Develop lean and zero-defect manufacturing processes.
  • Supervise the qualification phase and facilitate the transfer of new products and components to our production facility in Thailand.
  • Build work instructions for multilingual manufacturing sites.
  • Collaborate within multifunctional teams, working closely with development partners and external service providers.

Success Indicators:

  • Strong mechanical design skills, emphasizing quality and manufacturability.
  • Outstanding analytical skills and problem-solving ability.
  • Outstanding teamwork and interpersonal skills.
  • Adaptability to multitasking in a fast-paced environment.
  • Creative problem-solving foresight, coupled with a proven grasp of project management.
  • Dedicated to rapid hardware design and adhering to mechanical engineering standard processes.

Minimum Requirements:

  • Bachelor's degree in Mechanical Engineering with 2+ years of validated industrial development experience.
  • Proficiency in CAD tools for 3D design and 2D drawing creation (SolidWorks preferred).
  • Familiarity with PDM-PLM (SW PDM-Agile preferred).
  • Application of mechanical design standards (ISO, ANSI) and GD&T best practices to mechanical drawing specifications.
  • Willingness to travel internationally (up to 10-15%) to assess vendors and collaborate with design and manufacturing teams.
  • Excellent English verbal and written communication skills.
  • Proven understanding of various production methods and materials selection.
  • High integrity, work ethic, responsiveness, and a dedication to continuous improvement.

Additional Desired Experience:

  • Master's degree in Mechanical Engineering.
  • Exposure to manufacturing processes. 
  • Proficiency in thermal and structural analysis using Finite Element Analysis (ANSYS preferred), including design and tolerance analysis.
  • Experience in Test & Reliability engineering (HALT/HASS).
  • Conduct environmental stability tests (temperature cycles, shock, vibration) at the component, module, and system levels.
  • Familiarity with fiber optics and/or opto-mechanical design for commercial laser products

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.

Senior Mechanical Engineer

Office

Pathumthani (Navanakorn)

Full Time

September 16, 2025

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Lumentum

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