W

Western Digital

Makes hard drives for cloud and AI data centers

Principal / Technologist Firmware Engineer

Full-Time
No salary listed
Expert
Bachelor's, Master's
Shenzhen, Guangdong Province, China
In Person
Software EngineeringEmbedded Engineering

About the job

Requirements
  • A B.S. or M.S. in Electrical Engineering, Computer Engineering, Computer Science, or a related discipline.
  • At least 8 years of professional embedded software or firmware development experience.
  • Deep proficiency in C/C++ for resource-constrained targets, experience with at least one commercial or open-source RTOS, and a solid understanding of real-time scheduling, interrupt handling, synchronization primitives, and deterministic timing.
  • Demonstrated experience with Linux kernel internals, including driver development, kernel module programming, user-space/kernel-space interfaces such as ioctl, sysfs, and netlink, and cross-compilation toolchains.
  • Hands-on development in Verilog or VHDL targeting Xilinx and/or Intel (Altera) platforms; familiarity with synthesis, timing closure, simulation, and on-chip debug (ILA/SignalTap).
  • A proven track record building PC-side applications for embedded device interaction, including serial/USB/Ethernet communication stacks, GUI or CLI tools, and automated test frameworks.
  • Expert-level use of JTAG/SWD debuggers, logic analyzers, and oscilloscopes; proficiency with version control (Git), CI/CD pipelines, and build systems (Make, CMake, Yocto/Buildroot).
  • Strong technical writing and verbal communication skills, including the ability to produce clear design documents, interface specifications, and technical reports.
  • Proficient English verbal communication and the ability to collaborate and conduct technical discussions across cross-functional and cross-regional teams.
Responsibilities
  • Architect, develop, debug, and optimize firmware and software for embedded platforms spanning bare-metal, RTOS, and embedded Linux environments.
  • Write and maintain board support packages (BSPs), bootloaders, peripheral drivers, and hardware abstraction layers for microcontrollers and SoCs.
  • Develop and maintain Linux kernel modules, device drivers, device-tree configurations, and root filesystem customization for embedded Linux targets.
  • Design, implement, and verify FPGA logic (Verilog/VHDL); collaborate with hardware teams on FPGA-based prototyping, signal processing pipelines, or custom peripheral integration; and develop and debug firmware-FPGA interfaces.
  • Develop host-side applications (C/C++, Python, C#, or Qt-based) for device communication, data acquisition, test automation, calibration tools, and production diagnostics.
  • Lead board bring-up activities, integrate software, firmware, and FPGA components, and drive system-level debugging using oscilloscopes, logic analyzers, JTAG/SWD debuggers, and protocol analyzers.
  • Profile and optimize system performance, including latency, throughput, memory footprint, and power consumption; implement robust error handling, watchdog strategies, and fault-tolerant designs.
  • Provide architectural guidance and code reviews; mentor junior engineers; establish coding standards, documentation practices, and development workflows for the embedded team.
  • Work closely with hardware, mechanical, test, and product teams to translate system requirements into embedded software specifications and deliver integrated solutions.
Desired Qualifications
  • Experience with high-speed interfaces such as PCIe, USB 3.x, Ethernet (including RGMII/SGMII), or MIPI.
  • Familiarity with hardware description and verification methodologies (SystemVerilog, UVM) or High-Level Synthesis (HLS).
  • Experience with signal/image processing algorithms implemented in firmware or FPGA fabric.
  • Proficiency in Python for scripting, test automation, and rapid prototyping.
  • Experience with Agile/Scrum development methodologies in a hardware-software co-development environment.
  • Familiarity with storage systems, motor control, or industrial/IoT domains.

About the company

Western Digital, which goes by WD, designs and makes hard disk drives, mostly the high-capacity models that cloud and AI data centers use to store huge amounts of data cheaply. In 2013, its HGST unit shipped the first helium-filled hard drives, which fit more disks into each drive and use less power. Its drives store data on stacks of spinning magnetic disks, and the lineup runs from Ultrastar data center drives to WD Red and WD Purple drives for home servers and security cameras. WD makes its money selling these drives to cloud companies, PC makers, and retail shoppers. Western Digital was founded in 1970 and is based in San Jose, California, and in 2025 it spun off its flash memory business as Sandisk.

Company Size

10,001+

Company Stage

IPO

Headquarters

San Jose, California

Founded

1970

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Simplify's Take

What believers are saying

  • Sales are accelerating: revenue rose 44% in the quarter ended July 2026, and WD forecast up to 49% growth next.
  • Demand is locked in: in January 2026, WD said 2026 was nearly sold out, with contracts into 2028.
  • Room to grow: WD listed 346 open roles in October 2026, including 31 internships and 92 US jobs.

What critics are saying

  • A few buyers drive the business: three customers made 44% of fiscal 2026 revenue; the top 10, 73%.
  • WD trails on denser drives: Seagate's 44TB laser-heated drives reached two cloud giants by March 2026; WD's come in 2027.
  • Job cuts continue despite growth: WD booked $103 million in severance costs in the nine months to April 2026.

What makes Western Digital unique

  • It sells mostly to data centers, not shoppers: cloud customers made 89% of revenue in mid-2026, consumers 5%.
  • Most staff work in Asia: 88% of WD's roughly 40,000 employees are in Asia Pacific, where it builds its drives.
  • It stretches older drive technology further: by July 2026, WD was shipping 40TB drives without Seagate-style laser heating.

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Benefits

  • Paid sick leave & vacation time
  • Medical/dental/vision insurance
  • Life, accident, & disability insurance
  • Tax-advantaged flexible spending and health savings accounts
  • Employee assistance program
  • Tuition reimbursement
  • Employee stock purchase plan
  • Western Digital Savings 401(k) Plan

Growth & Insights and Company News

6 month growth

-4%

1 year growth

-3%

2 year growth

-3%
Yahoo Finance
Oct 22nd, 2026
Western Digital reports October 22: Wall Street expects $4.15B revenue after four straight beats

Western Digital will report first-quarter fiscal 2027 results on October 22 after the market closes. The data storage maker has beaten analysts' estimates in each of the past four quarters. Analysts expect revenue of $4.15 billion and earnings of $3.99 per share. Management guided to $4.1 billion in revenue and $4 per share. In the fourth quarter, revenue rose 44% to $3.75 billion, with cloud accounting for 89% of the total. The stock has gained 200% over 52 weeks but trades 55% below its June 18 record of $799.87. Bank of America raised its price target to $800 from $720, while Morgan Stanley cut its target to $643 from $676.

Yahoo Finance
Oct 22nd, 2026
BofA raises Western Digital target to $800 despite slower capacity growth

Bank of America (BofA) raised its Western Digital price target to $800 from $720 on October 21, even as it cut its forecast for storage-capacity shipment growth. Analyst Wamsi Mohan expects fiscal first-quarter exabyte shipments to rise 21% from a year earlier, below management's longer-term target of about 25%. He expects average price per terabyte to rise 24%, as demand for hard drives still exceeds supply. BofA raised its fiscal 2027 earnings estimate to $22.37 per share from $19.17. It applies a lower 16-times earnings multiple, down from 19. Western Digital reports results on October 22. BofA expects revenue of $4.22 billion and adjusted earnings of $4.29 per share. Shares closed at $378.51 on October 21, up 3.89%.

International Employment Lawyer
Oct 22nd, 2026
Continue reading international employment lawyer.

Continue reading international employment lawyer. * Community. Western Digital taps Smiths Group for first EMEA counsel Ming Evans settles into first week, telling IEL she's excited to add her knowledge to data storage firm as it targets regional growth Jenna Lomax Community Editor Thursday 22 October 2026 US data storage company Western Digital has appointed Ming Evans as its new EMEA associate general counsel for employment law. Get access. Enter your email address. Enter the password that accompanies your email address. Need access? Find out how to enjoy unlimited access

Yahoo Finance
Oct 21st, 2026
Western Digital stock is down 34.5% since July; past shocks suggest a 68% fall is possible

Western Digital shares have fallen 34.5% since July 22, 2026, while the S&P 500 gained 3.1%. The stock dropped 13% on August 6 after its gross margin forecast for fiscal Q1 2027 missed expectations set by rival Seagate. In past market shocks, the stock fell 34.8% on average, more than twice the S&P 500's 15.8% drop. It lost 68% in the 2008-2009 financial crisis. Recovery took a median of 8.7 months. The business itself is stronger. Revenue reached $12.9 billion over the four quarters ended July 3, 2026, up 35.7%, with an operating margin of 35.6%. Debt fell to $1.05 billion from $7.43 billion two years earlier. Exabyte shipments grew 22% in fiscal Q4 2026, below the 25% rise for the full year. Management guided to a gross margin of 55% to 56%, just above the prior quarter's 54.4%.

CNBC
Oct 21st, 2026
Tokenized stock trading surges overseas to $11.31B on Robinhood Chain as Goldman, Microsoft object in US

Tokenized stock trading is growing overseas while major US companies resist it at home, according to Bitwise Asset Management's latest quarterly report. On Robinhood Chain, tokenized stock volume rose from $526 million in July to $2.21 billion in August, then to $11.31 billion in September. Tokenized equities were also the fastest-growing category on Solana. Goldman Sachs, Microsoft, Qualcomm, Caterpillar, McDonald's, Western Digital, and Alphabet have objected to tokenized versions of their shares trading on OKXICE, a venue launched by crypto exchange OKX and Intercontinental Exchange. Sixteen companies have now objected. The US Securities and Exchange Commission's innovation exemption lets companies opt out. OKXICE co-chairman Andrew Cuomo said many companies would "wait and see" before taking part.