Senior Development Engineer – Photonic Devices, VCSEL Epitaxy

🕒 March 3

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Western Digital

WebsiteLinkedInAll Job Openings

10,000+ employees

Founded 1970

👥 B2C

🤝 B2B

🔧 Hardware

💰 $900M Post-IPO Equity on 2023-01

B2C • B2B • Hardware

Western Digital is a leading manufacturer of data storage solutions, including solid state drives (SSDs), hard drives (HDDs), USB flash drives, and memory cards. The company provides a broad range of products for various uses, such as gaming, video surveillance, and data backup. They also offer solutions for data centers, network-attached storage (NAS), and digital photography. Western Digital is renowned for their innovation in developing storage technologies that meet the needs of both consumers and businesses.

📋 Description

• Design and simulate epitaxial layer stacks for VCSEL and other photonic device structures to meet optical, electrical, and thermal device requirements. • Develop and refine device and epitaxy simulation models (e.g., optical cavity / mode simulations, carrier transport, thermal behavior) to support architecture decisions. • Translate system and device requirements into epitaxial specifications (materials, layer sequences, thicknesses, doping profiles). • Work closely with epitaxy, process, and device characterization teams to: Define experiments and DOEs. Interpret measurement and reliability data. 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, coordinating with colleagues across different locations and time zones (with substantial overlap to EU working hours). • Mentor junior engineers and students in topics such as semiconductor device physics, simulation methodology, and data analysis.

🎯 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

• Competitive salary • Flexible working hours • Professional development budget • Home office setup allowance • Global team events