W

Western Digital

Makes hard drives for cloud and AI data centers

Quantum Compute Simulation Scientist

Full-TimeDeadline 1/9/27
$184.5k - $246k/yr
Mid
PhD
San Jose, CA, USA
In Person
AI & Machine LearningAI Research
Company Historically Provides H1B Sponsorship

About the job

Requirements
  • A Ph.D. in Physics, Electrical Engineering, Materials Science, or a related field, with coursework background in condensed matter physics, quantum field theory, and quantum error correction control theory.
  • Experience using open-source and commercial software platforms such as PennyLane, TopQAD, scqubits, and SQuADDS.
  • Thorough understanding of superconducting qubit design theory, building in-house simulation tools, and using existing open-source tools.
  • Experience simulating low-temperature DC and RF measurement of qubit devices.
  • Proficiency in programming languages such as Python, Rust, TCL, or C, with the ability to choose an appropriate language for the task, including knowledge of or willingness to acquire knowledge of FPGA-based microcontrollers.
  • Ability to independently pursue fundamental research, including writing and publishing papers.
  • Ability to address challenges outside the immediate field of expertise.
  • Written and verbal communication skills to present complex data and insights clearly to technical and non-technical audiences.
Responsibilities
  • Lead and execute research projects in quantum computing superconducting-qubit simulation of multi-qubit systems using in-house and commercial simulation tools.
  • Collaborate with product teams to address novel challenges and develop solutions.
  • Stay current with industry and academic trends, publish papers, and present at conferences.
  • Develop and present detailed reports and visualizations to communicate findings, trends, and actionable insights to stakeholders at all levels.

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

Headcount

6 month growth

-3%

1 year growth

-3%

2 year growth

-3%
The Markets Daily
Oct 16th, 2026
Super Micro Computer (NASDAQ:SMCI) shares down 9.9% - what's next?

Super Micro Computer (NASDAQ:SMCI) shares down 9.9% - what's next? Super Micro Computer, Inc. (NASDAQ:SMCI - Get Free Report)'s stock price traded down 9.9% on Friday. The stock traded as low as $31.43 and last traded at $31.63. Approximately 43,501,088 shares traded hands during mid-day trading, a decline of 0% from the average session volume of 43,588,617 shares. The stock had previously closed at $35.09. Key Super Micro Computer news. Here are the key news stories impacting Super Micro Computer this week: * New CFO could improve financial oversight: Super Micro appointed Mark Long, a former Western Digital finance executive, as senior vice president and chief financial officer. The change may eventually strengthen accounting leadership and investor confidence after an extended search. * Rosenblatt reaffirmed its Buy rating: The firm maintained a $51 price target, implying substantial upside from recent trading levels and signaling that some analysts view the selloff as excessive. * Low valuation offers potential support but reflects risk: Super Micro trades at roughly 9.8 times earnings, well below the broader market multiple. Investors must determine whether that discount represents a bargain for a fast-growing AI server company or appropriately prices in concerns about cash generation and governance. * CFO transition revived governance concerns: David Weigand's departure came nearly two years after an advisory committee reportedly recommended replacing him. The lengthy delay in appointing a permanent finance chief has raised questions about accounting leadership and management credibility. * AI hardware stocks faced renewed sector pressure: Concerns about how companies and customers will finance the AI infrastructure boom, along with uncertainty over the timing of enterprise spending, pushed Super Micro, Dell and Hewlett Packard Enterprise lower. This suggests the weakness is also driven by sector-wide risk aversion rather than company-specific news alone. Analysts set new price targets. Several brokerages recently issued reports on SMCI. Wedbush upped their price objective on shares of Super Micro Computer from $34.00 to $40.00 and gave the company a "neutral" rating in a research note on Wednesday, August 12th. Weiss Ratings reissued a "hold (c)" rating on shares of Super Micro Computer in a research note on Monday, September 21st. Sanford C. Bernstein set a $42.00 target price on shares of Super Micro Computer in a research note on Thursday, August 13th. The Goldman Sachs Group restated a "sell" rating and set a $34.00 target price (up from $30.00) on shares of Super Micro Computer in a report on Wednesday, August 12th. Finally, Barclays set a $39.00 price target on Super Micro Computer and gave the company an "equal weight" rating in a research report on Wednesday, August 12th. Four analysts have rated the stock with a Buy rating, twelve have assigned a Hold rating and two have given a Sell rating to the company's stock. According to data from MarketBeat.com, Super Micro Computer has an average rating of "Hold" and a consensus target price of $43.07. Super Micro Computer stock performance. The stock has a market cap of $20.78 billion, a price-to-earnings ratio of 9.88, a PEG ratio of 0.69 and a beta of 2.02. The firm's 50-day moving average price is $38.83 and its two-hundred day moving average price is $33.43. The company has a debt-to-equity ratio of 0.65, a quick ratio of 2.07 and a current ratio of 3.87. Super Micro Computer (NASDAQ:SMCI - Get Free Report) last released its quarterly earnings results on Tuesday, August 11th. The company reported $1.70 earnings per share for the quarter, topping analysts' consensus estimates of $0.92 by $0.78. The business had revenue of $11.12 billion during the quarter, compared to analysts' expectations of $11.60 billion. Super Micro Computer had a return on equity of 27.83% and a net margin of 5.71%. The company's revenue was up 93.2% compared to the same quarter last year. During the same period in the prior year, the business posted $0.31 EPS. Super Micro Computer has set its Q1 2027 guidance at 1.010-1.100 EPS. On average, analysts expect that Super Micro Computer, Inc. will post 3.94 EPS for the current fiscal year. Insider transactions at Super Micro Computer. In other Super Micro Computer news, Director Chiu-Chu Liang sold 100,000 shares of Super Micro Computer stock in a transaction dated Wednesday, October 7th. The shares were sold at an average price of $45.02, for a total transaction of $4,502,000.00. Following the completion of the sale, the director directly owned 337,506 shares in the company, valued at $15,194,520.12. This trade represents a 22.86% decrease in their ownership of the stock. The sale was disclosed in a legal filing with the Securities & Exchange Commission, which is available at the SEC website. The transaction was executed under a pre-arranged Rule 10b5-1 trading plan. Also, CEO Charles Liang sold 100,000 shares of Super Micro Computer stock in a transaction dated Wednesday, October 7th. The shares were sold at an average price of $45.02, for a total transaction of $4,502,000.00. Following the sale, the chief executive officer owned 337,506 shares of the company's stock, valued at approximately $15,194,520.12. This represents a 22.86% decrease in their ownership of the stock. The disclosure for this sale is available in the SEC filing. The transaction was executed under a pre-arranged Rule 10b5-1 trading plan. Insiders sold 400,000 shares of company stock worth $16,442,000 in the last ninety days. 16.10% of the stock is currently owned by corporate insiders. Hedge funds weigh in on Super Micro Computer. A number of hedge funds have recently made changes to their positions in SMCI. SHP Wealth Management purchased a new stake in shares of Super Micro Computer during the fourth quarter worth approximately $29,000. TOP Private Wealth LLC. purchased a new stake in shares of Super Micro Computer during the 2nd quarter worth $42,000. Comprehensive Financial Planning Inc. PA purchased a new stake in shares of Super Micro Computer during the 2nd quarter worth $43,000. Banque Cantonale Vaudoise acquired a new position in shares of Super Micro Computer during the first quarter worth $37,000. Finally, Contravisory Investment Management Inc. purchased a new position in Super Micro Computer in the second quarter valued at $49,000. Hedge funds and other institutional investors own 84.06% of the company's stock. Super Micro Computer company profile. Super Micro Computer, Inc develops and sells application-optimized server and storage systems for data centers, cloud computing, enterprise IT, artificial intelligence, and other demanding computing environments. The company offers complete computing platforms as well as modular components, allowing customers to configure systems for specific performance, power, and workload requirements. Its product portfolio includes server and storage systems, workstations, networking equipment, rack-scale solutions, GPU and AI systems, and related software and services. Further reading. Receive News & Ratings for Super Micro Computer Daily - Enter your email address below to receive a concise daily summary of the latest news and analysts' ratings for Super Micro Computer and related companies with MarketBeat.com's FREE daily email newsletter.

Yahoo Finance
Oct 16th, 2026
Western Digital CFO Mark Long leaves for Super Micro Computer role as $136.3B storage giant faces transition

Western Digital confirmed that chief financial officer and chief strategy officer Mark Long is leaving the company. Long has accepted the CFO role at Super Micro Computer, which recently completed an accounting review and saw its auditor resign. Western Digital disclosed the change as a material event. The US group, which has a market value of about $136.3 billion, makes hard disk drive storage hardware. Because Long also ran corporate strategy, attention turns to whether the company keeps its AI-driven drive roadmap on track. That includes a planned 2027 ramp of 44TB HAMR drives and long-term capital spending of 4% to 6% of revenue.

Yahoo Finance
Oct 13th, 2026
Western Digital at $397: 43.6% operating margin, but profit leans on SanDisk stake

Western Digital (NASDAQ: WDC) closed at $397.28 on October 9, up 13.4% over six months. The S&P 500 ETF returned 15.1% in that period. Most of its reported profit comes from a retained stake in SanDisk, the flash memory business it spun off in February 2025, not from drives. Free cash flow came in well below net income. The drive business is still strong. Operating margin is 43.61%, and revenue grew 43.80% as data centres bought high-capacity drives faster than makers could build them. The stock trades at 12.40 times forward earnings but 18.99 times book value. Insider Monkey calls this the profile of a cyclical at its peak, with industry capacity already being added. Hedge fund holders rose to 98 from 83, with stakes worth about $9.94 billion.

Yahoo Finance
Oct 9th, 2026
Western Digital outpaces Apple with 36% revenue growth and wider margins despite stock volatility

Western Digital forecasts fiscal Q1 2027 revenue of $4.1 billion, up from $3.75 billion in the previous quarter. The company's revenue grew 36% over the past twelve months, outpacing Apple's 14.2%. Western Digital reported its average price per terabyte rose by a high-teens percentage year-over-year in fiscal Q4 2026, whilst costs per terabyte fell around 8%. By contrast, Apple warned of rising memory costs during its fiscal Q3 2026 call. Western Digital maintains a 36% operating margin compared to Apple's 33%, and carries less debt relative to market value. However, cloud customers account for 89% of Western Digital's revenue, whilst Apple benefits from diversified income streams including iPhone and services. Western Digital shares returned 224% over twelve months, significantly exceeding Apple's 32%.

Yahoo Finance
Oct 7th, 2026
Western Digital eyes AI labs and autonomous vehicle makers as cloud customers drive 44% revenue growth

Western Digital is attracting new customers from AI labs, emerging cloud companies, and autonomous vehicle manufacturers, though the scale of these purchases remains uncertain. Cloud customers accounted for 88% of the company's fiscal Q4 2026 revenue, generating $3.3 billion — a 44% year-over-year increase. The company shipped 231 exabytes of storage capacity in fiscal Q4 2026, up 22% annually, whilst overall revenue grew 44% in the same period. Management attributed this growth to both increased shipment volumes and higher pricing, with the average price per terabyte rising by a high-teens percentage. Western Digital expects storage demand to grow over 25% annually. The company projects fiscal Q1 2027 revenue of $4.1 billion, plus or minus $100 million, compared to $3.75 billion in fiscal Q4 2026.