Lee Park
Offer call went well. He wants until Monday to decide.
Every component in every state. Ported from Kumo 1846759 on Base UI 1.9.0, with Phosphor icons.
Senior physical design engineer at Tenstorrent, 2021 to now. Before that, four years at Apple on the A15 and A16.
MS Electrical Engineering, University of Illinois Urbana-Champaign.
Ana and I worked together on the A16 power grid. She is the person I call when timing will not close.
Kai Ito · Oct 14
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Accepted by Sam Lee · Oct 14
The Ashby owner was wrong. Moved to Kai Ito, who ran the first screen.
Ana Ruiz
Thanks for the call today. Could you send the tape-out timeline before Friday?
Kai Ito
Moving our chat to Thursday at 10:00. The Taipei trip is still on.
Four rounds: hiring manager, two technical screens and a team lunch.
Expects a level above the current offer. Sam Lee to follow up.
Sep 30 · Sourced from the Hot Chips attendee list.
| Candidate | Role | Referred by |
|---|---|---|
| Ana Ruiz | ASIC design engineer | Sam Lee |
| José Núñez | Firmware engineer | Kai Ito |
| Lee Park | Thermal engineer | Sam Lee |
| Mira Osei | Physical design lead | Ana Ruiz |
Candidate id 4321.
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Walked through a timing closure on a 5 nm block without notes. Asked good questions about bring-up.
Sam Lee
Ana Ruiz has 2 notes from the last loop.
Run ID: run_7f3a91c2
| Run | Chip | Status |
|---|---|---|
| run_7f3a91c2 | Chip 14 | Passed |
| run_2b80e4d7 | Chip 15 | Failed |
| run_9c4d2e1f-0a7b-4c3e-9f12-6b8a5d3e7c01 | Chip 16 | Queued |
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| Ana Ruiz |
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24 open roles · 9 referrals
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Run 1284 passed at 71 °C.
| Role | Candidates |
|---|---|
| ASIC design engineer | 14 |
| Firmware engineer | 9 |
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Chip SH-24A-0193 Loading chip status is being checked.
| Employee | Path strength |
|---|---|
| Sam Lee | |
| Kai Ito | |
| Ana Ruiz |
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Toronto · Hiring manager: Sam Lee · 2 openings
Hiring manager: Sam Lee · 2 openings
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ASIC design engineer
Run 1,284 · 3 steps · 42 s
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| Role | Stage | Owner | Updated | |||
|---|---|---|---|---|---|---|
| Ana Ruiz | ASIC design engineer | Interviewing | Sam Lee | 4 | Oct 14 | |
| José Núñez | Firmware engineer | Scheduled | Kai Ito | 12 | Oct 13 | |
| Lee Park | Thermal engineer | Hired | Sam Lee | 11 | Oct 9 | |
| Mira Osei | Physical design lead for the next tape-out, a title long enough to wrap | We Passed | Ana Ruiz | 1 | Sep 30 |
| Role | Stage | Owner | Updated | ||
|---|---|---|---|---|---|
| José Núñez | Firmware engineer | Scheduled | Kai Ito | 12 | Oct 13 |
| Lee Park | Thermal engineer | Hired | Sam Lee | 11 | Oct 9 |
| Ana Ruiz | ASIC design engineer | Interviewing | Sam Lee | 4 | Oct 14 |
| Mira Osei | Physical design lead for the next tape-out, a title long enough to wrap | We Passed | Ana Ruiz | 1 | Sep 30 |
| Role | Stage | Owner | Updated | ||
|---|---|---|---|---|---|
| Ana Ruiz | ASIC design engineer | Interviewing | Sam Lee | 4 | Oct 14 |
| José Núñez | Firmware engineer | Scheduled | Kai Ito | 12 | Oct 13 |
| Lee Park | Thermal engineer | Hired | Sam Lee | 11 | Oct 9 |
| Mira Osei | Physical design lead for the next tape-out, a title long enough to wrap | We Passed | Ana Ruiz | 1 | Sep 30 |
| Name | Role | Owner |
|---|---|---|
| Silicon | ||
| Ana Ruiz | ASIC design engineer | Sam Lee |
| José Núñez | Firmware engineer | Kai Ito |
| Systems | ||
| Lee Park | Thermal engineer | Sam Lee |
| Mira Osei | Physical design lead for the next tape-out, a title long enough to wrap | Ana Ruiz |
| Candidate | Role | Stage | Recruiter | Updated |
|---|---|---|---|---|
| Ana Ruiz | 2 applications | Oct 14 | ||
| Application 1 | ASIC design engineer | Interviewing | Sam Lee | Oct 14 |
| Application 2 | Verification engineer | We Passed | Kai Ito | Sep 2 |
| José Núñez | Firmware engineer | Scheduled | Kai Ito | Oct 13 |
| Lee Park | 3 applications | Oct 9 | ||
| Application 1 | Thermal engineer | Hired | Sam Lee | Oct 9 |
| Application 2 | Packaging engineer | Revisit | Ana Ruiz | Aug 21 |
| Application 3 | Power engineer | No Response | Kai Ito | Jul 30 |
Candidate | Role | Stage | Recruiter | Updated |
|---|---|---|---|---|
Ana Ruiz | 2 applications | Oct 14 | ||
Application 1 | ASIC design engineer | Interviewing | Sam Lee | Oct 14 |
Application 2 | Verification engineer | We Passed | Kai Ito | Sep 2 |
José Núñez | Firmware engineer | Scheduled | Kai Ito | Oct 13 |
Lee Park | 3 applications | Oct 9 | ||
Application 1 | Thermal engineer | Hired | Sam Lee | Oct 9 |
Application 2 | Packaging engineer | Revisit | Ana Ruiz | Aug 21 |
Application 3 | Power engineer | No Response | Kai Ito | Jul 30 |
Nothing open.
| Role | Conviction | Stage | Notes | |
|---|---|---|---|---|
Ana Ruiz | Interviewing | Led the clock tree rework on the last tape-out; wants to stay close to silicon bring-up. | ||
José Núñez | Scheduled | Strong on bootloaders. Asked about the on-call rotation. | ||
Lee Park | Hired | Built the liquid cooling test bench at their last job. | ||
Mira Osei | We Passed | Referred by Sam. Prefers to start after the next quarter. |
| Name | Calls |
|---|---|
| José Núñez | 12 |
| Lee Park | 11 |
| Ana Ruiz | 4 |
| Mira Osei | 1 |
No row open.
| Role | Stage | Owner | Updated | ||
|---|---|---|---|---|---|
| Ana Ruiz | ASIC design engineer | Interviewing | Sam Lee | 4 | Oct 14 |
| Chen Wei | Packaging engineer | Offer | Ana Ruiz | 9 | Oct 10 |
| Eva Novak | Systems engineer | We Passed | Ana Ruiz | 2 | Oct 3 |
| Ivan Petrov | DFT engineer | Scheduled | Sam Lee | 3 | Oct 11 |
| José Núñez | Firmware engineer | Scheduled | Kai Ito | 12 | Oct 13 |
| Lee Park | Thermal engineer | Hired | Sam Lee | 11 | Oct 9 |
| Lena Vogel | Test engineer | Interviewing | Sam Lee | 8 | Sep 27 |
| Mira Osei | Physical design lead for the next tape-out, a title long enough to wrap | We Passed | Ana Ruiz | 1 | Sep 30 |
| Noor Haddad | Verification engineer | Interviewing | Kai Ito | 7 | Oct 12 |
| Omar Farouk | Compiler engineer | Hired | Sam Lee | 14 | Oct 6 |
| Raj Mehta | Board designer | Scheduled | Kai Ito | 6 | Sep 29 |
| Sara Lind | Power engineer | Interviewing | Kai Ito | 5 | Oct 8 |
| Name | Role | Stage | Owner | |
|---|---|---|---|---|
| Ana Ruiz | ASIC design engineer | Interviewing | Sam Lee | |
| José Núñez | Firmware engineer | Scheduled | Kai Ito | |
| Lee Park | Thermal engineer | Hired | Sam Lee | |
| Mira Osei | Physical design lead for the next tape-out, a title long enough to wrap | We Passed | Ana Ruiz |
Last action: none.
| Name | Owner | Calls |
|---|---|---|
| Ana Ruiz | Sam Lee | 4 |
| José Núñez | Kai Ito | 12 |
| Lee Park | Sam Lee | 11 |
| Mira Osei | Ana Ruiz | 1 |
| Noor Haddad | Kai Ito | 7 |
| Ivan Petrov | Sam Lee | 3 |
| Role | Team | Openings |
|---|---|---|
No roles match these filters | ||
| Candidate | Interviewer | Date |
|---|---|---|
| Candidate | Owner | Updated |
|---|---|---|
| Name | Role | Stage | Calls |
|---|---|---|---|
| Ana Ruiz | ASIC design engineer | Interviewing | 4 |
| José Núñez | Firmware engineer | Scheduled | 12 |
| Lee Park | Thermal engineer | Hired | 11 |
| Mira Osei | Physical design lead for the next tape-out, a title long enough to wrap | We Passed | 1 |
| Name | Owner | |
|---|---|---|
| Ana Ruiz | Sam Lee | |
| José Núñez | Kai Ito | |
| Lee Park | Sam Lee | |
| Mira Osei | Ana Ruiz |
Staff ASIC design engineer with nine years on timing closure and power grids, most recently on 5 nm inference parts.
Tenstorrent, 2021 to now: led physical design for two tape-outs. Apple, 2017 to 2021: power grid and IR drop on the A15 and A16.
Recruiter screen on Oct 2, technical interview on Oct 9, and a four-person onsite on Oct 16. Three of four have sent feedback.
Sam Lee (manager at Groq) has replied. Kai Ito (peer at Cerebras) is scheduled for Thursday.
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xs: Run 1,284 finished on bench B-14 at 02:14. The chip held 71 °C under full load for six hours.
sm: Run 1,284 finished on bench B-14 at 02:14. The chip held 71 °C under full load for six hours.
base: Run 1,284 finished on bench B-14 at 02:14. The chip held 71 °C under full load for six hours.
lg: Run 1,284 finished on bench B-14 at 02:14. The chip held 71 °C under full load for six hours.
body: Thermal soak on bench B-14
secondary: Thermal soak on bench B-14
success: Thermal soak on bench B-14
error: Thermal soak on bench B-14
bold: Owner changed to Ana Ruiz
Strong on clock trees and timing closure. Wants to stay close to silicon bring-up, and asked twice about the Taipei lab and the tape-out schedule for next spring.
Sam Lee, Oct 14: The Ashby owner was wrong, so the candidate moved to Kai Ito, who ran the first screen. Kai will set up the loop with the thermal team after the offsite, and send the take-home before Friday.
SH-24A-0193 thermal soak, full load, six hours, bench B-14, night shift
Started by Sam Lee, ID run_7f3a91c2
Office hours, in quarter hours.
| Run | Status | Owner |
|---|---|---|
| Thermal soak 1284 | Passed | Sam Lee |
| Power cycle 1285 | Failed | Kai Ito |
| Memory stress 1286 | Running | Sam Lee |