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Senior Development Engineer – Photonic Devices, VCSEL Epitaxy
Location
Germany
Posted
4 days ago
Salary
0
Seniority
Senior
Job Description
Senior Development Engineer – Photonic Devices, VCSEL Epitaxy
Western Digital
• Drive the design and optimization of epitaxial stacks for VCSEL and related photonic device structures. • Translate device‑level requirements into robust epitaxial designs, using advanced semiconductor physics and numerical simulations. • Develop and refine device and epitaxy simulation models (e.g., optical cavity / mode simulations, carrier transport, thermal behavior). • Work closely with epitaxy, process, and device characterization teams to define experiments and DOEs. • Interpret measurement and reliability data and iterate designs based on feedback from wafer- and device‑level results. • Contribute to device architecture and development strategies, including roadmaps for performance, reliability, and manufacturability improvements. • Analyze and correlate simulation, epitaxial, and device performance data to identify root causes and optimization paths. • Prepare and present technical reports, design reviews, and development status updates for internal stakeholders. • Collaborate in a multi‑disciplinary, international R&D environment. • Mentor junior engineers and students in topics related to semiconductor device physics.
Job Requirements
- PhD in Materials Science, Physics, Electrical Engineering, or a closely related field.
- Extensive professional experience with a strong record of sustained impact and increasing responsibility in R&D or applied academic research, ideally including collaboration with industry partners or participation in translational initiatives.
- Solid track record in semiconductor devices, preferably in photonic devices such as lasers, LEDs, or VCSELs.
- Deep understanding of semiconductor physics, including: Heterostructures and quantum wells, Optical cavities and resonant structures, Carrier transport, recombination mechanisms, and thermal effects.
- Experience with device or epitaxial stack simulations, for example: Optical mode / cavity simulations, Electronic band structure and carrier confinement, Thermal / electro‑thermal simulations.
- Strong ability to interpret experimental data (e.g., I‑V, L‑I, spectral, far‑field, lifetime/reliability data) and connect results to physical mechanisms and design choices.
- Fluent English (spoken and written), with the ability to write clear technical documentation and present complex topics to a mixed audience.
- Ability and willingness to work at least partially in EU time zones to ensure effective collaboration with European teams.
Benefits
- Health insurance
- 401(k) matching
- Paid time off
- Flexible work arrangements
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