The Peterman Pod

Charlie Marsh is the founder of Astral, the Python devtool startup that was acquired by OpenAI. I inteviewed him about how software engineering is changing and learnings from starting his own company as an engineer.• My ergonomic keyboard project I mentioned, you can follow along here: https://read.compose.llc/• The Kickstarter page for it: https://www.kickstarter.com/projects/ryanlpeterman/compose-simple-ergonomics-beautifully-donePodcast links:• YouTube: https://youtu.be/Iw65FD4MGgs• Apple: https://podcasts.apple.com/us/podcast/the-peterman-pod/id1777363835• Transcript: https://www.developing.dev/p/openai-eng-and-dev-tools-founderThank you to this episode's sponsor for supporting my work:• WorkOS: makes your app Enterprise Ready with easy to use APIs to add SSO, SCIM, RBAC, and more in just a few lines of code, check them out at https://workos.com/Timestamps:(00:00) Intro(00:40) Origin story(06:04) The front page of Hacker News(14:35) Why he chose Rust(20:10) Full codebase migration from Zig to Rust(28:40) LLM generated code and open source(35:34) Performance optimizations(44:54) Optimization with AI and combating slop(01:02:08) Learnings as an eng starting a company(01:17:55) Top technical talk recommendation(01:18:56) Advice for his younger self(01:22:00) OutroWhere to find Charlie:• LinkedIn: https://www.linkedin.com/in/marshcharles/• GitHub: https://github.com/charliermarsh• X/Twitter: https://x.com/charliermarshWhere to find Ryan:• Newsletter: https://www.developing.dev/• X/Twitter: https://x.com/ryanlpeterman• LinkedIn: https://www.linkedin.com/in/ryanlpeterman/• Threads: https://www.threads.com/@ryanlpeterman• Instagram: https://www.instagram.com/ryanlpeterman• TikTok: https://www.tiktok.com/@ryanlpetermanReferenced in this episode:• Python tooling could be much, much faster: https://notes.crmarsh.com/python-tooling-could-be-much-much-faster• The coolest PR he's ever seen: https://github.com/astral-sh/uv/pull/789• Andrew Kelley’s data-oriented design talk: https://www.youtube.com/watch?v=IroPQ150F6c• Ruff: https://github.com/astral-sh/ruff• uv: https://github.com/astral-sh/uv• ty: https://github.com/astral-sh/ty• Salsa: https://github.com/salsa-rs/salsa

Austen McDonald is a former hiring committee member at Meta, where he led mobile hiring and conducted hundreds of interviews. In this episode, we talked about what happens behind the scenes in a hiring committee, unethical candidates, and the role referrals play.🔸 (Sponsor) Hello Interview's Website - https://www.hellointerview.com/𝗣𝗼𝗱𝗰𝗮𝘀𝘁 𝗹𝗶𝗻𝗸𝘀:• YouTube: https://youtu.be/nOapM8i5jr0• Apple: https://podcasts.apple.com/us/podcast/the-peterman-pod/id1777363835• Transcript: https://www.developing.dev/p/meta-hiring-lead-on-behind-the-scenes𝗧𝗶𝗺𝗲𝘀𝘁𝗮𝗺𝗽𝘀:00:00:00 - Intro00:00:49 - What goes on in hiring committees00:09:02 - Unethical candidates00:12:50 - How leveling is determined00:23:12 - Can you negotiate level mid-process00:32:30 - How non-tech leads can signal scope00:39:11 - Referrals and bias00:45:28 - What the rubric looks like00:50:00 - OpenAI and Anthropic specific discussion00:52:22 - Most common mistakes senior candidates make01:02:31 - How to prep depending on your level01:08:34 - Subjectivity and bias01:21:02 - The questions you ask at the end matter01:23:59 - Storytelling tips01:30:31 - How he got promoted to Senior Manager (M2) at Meta01:33:32 - His biggest career regret01:38:13 - The best advice he ever received01:39:54 - Advice for younger self01:41:46 - Outro𝗪𝗵𝗲𝗿𝗲 𝘁𝗼 𝗳𝗶𝗻𝗱 𝗔𝘂𝘀𝘁𝗲𝗻:• LinkedIn - https://www.linkedin.com/in/austenmc/• His book - https://thebehavioral.tech/𝗪𝗵𝗲𝗿𝗲 𝘁𝗼 𝗳𝗶𝗻𝗱 𝗥𝘆𝗮𝗻:• Newsletter: https://www.developing.dev/• X/Twitter: https://x.com/ryanlpeterman• LinkedIn: https://www.linkedin.com/in/ryanlpeterman/• Threads: https://www.threads.com/@ryanlpeterman• Instagram: https://www.instagram.com/ryanlpeterman• TikTok: https://www.tiktok.com/@ryanlpeterman

Bryan Cantrill was a distinguished engineer at Sun Microsystems and has now founded his own company called Oxide Computer Company. We discussed his career experiences through boom/busts, what competing with Bezos was like, and career regrets.𝗣𝗼𝗱𝗰𝗮𝘀𝘁 𝗹𝗶𝗻𝗸𝘀:• YouTube: https://youtu.be/qhSL-5GtmQM• Apple: https://podcasts.apple.com/us/podcast/the-peterman-pod/id1777363835• Transcript: https://www.developing.dev/p/distinguished-eng-on-stack-ranking𝗘𝗽𝗶𝘀𝗼𝗱𝗲 𝗹𝗶𝗻𝗸𝘀:• Link to the part in the talk on Oracle/Sun we discussed - https://youtu.be/-zRN7XLCRhc?si=eExjIMZROGjJcDsw&t=1977𝗧𝗶𝗺𝗲𝘀𝘁𝗮𝗺𝗽𝘀:00:00:00 - Intro00:00:42 - Working at Sun Microsystems00:10:17 - His growth to distinguished eng00:19:14 - Why goaling on promotion is bad00:29:34 - Stack ranking and layoffs00:36:00 - Why he hated the Oracle acquisition00:44:19 - Why Bezos is the apex predator of capitalism00:48:04 - Differences between CTO and VP00:49:58 - Starting his own company01:02:37 - Grilling him on his past01:11:57 - AI boom and bust advice01:14:41 - When he was happiest in his career01:17:22 - Top career regret01:19:21 - Advice for younger self01:20:57 - Outro𝗪𝗵𝗲𝗿𝗲 𝘁𝗼 𝗳𝗶𝗻𝗱 𝗕𝗿𝘆𝗮𝗻:• LinkedIn - https://www.linkedin.com/in/bryan-cantrill-b6a1/• Twitter/X - https://x.com/bcantrill• Personal Website - https://bcantrill.dtrace.org/• His company - https://oxide.computer/𝗪𝗵𝗲𝗿𝗲 𝘁𝗼 𝗳𝗶𝗻𝗱 𝗥𝘆𝗮𝗻:• Newsletter: https://www.developing.dev/• X/Twitter: https://x.com/ryanlpeterman• LinkedIn: https://www.linkedin.com/in/ryanlpeterman/• Threads: https://www.threads.com/@ryanlpeterman• Instagram: https://www.instagram.com/ryanlpeterman• TikTok: https://www.tiktok.com/@ryanlpeterman

David Ronca joined Netflix in 2007 and grew to an engineering director there. Later he joined Meta as a Director and transitioned to a Principal engineer working on video technologies. Now he's retired and was graciously willing to share his career story with us. I asked him for everything he learned in his 36 year career.𝗣𝗼𝗱𝗰𝗮𝘀𝘁 𝗹𝗶𝗻𝗸𝘀:• Transcript: https://www.developing.dev/p/retired-netflix-engineering-director• YouTube: https://youtu.be/ApG9vjbHDCk• Apple: https://podcasts.apple.com/us/podcast/the-peterman-pod/id1777363835𝗘𝗽𝗶𝘀𝗼𝗱𝗲 𝗹𝗶𝗻𝗸𝘀:• Netflix culture memo (2009) - https://www.slideshare.net/slideshow/culture-1798664/1798664𝗧𝗶𝗺𝗲𝘀𝘁𝗮𝗺𝗽𝘀:00:00:00 - Intro00:00:40 - How Netflix was different00:08:01 - The legendary Netflix culture memo00:18:54 - How to hire engineers well00:30:52 - The strongest engineer he's ever met00:33:02 - Joining Meta00:50:52 - Near death experience00:59:04 - Where he learned the most01:04:09 - Book that impacted his career most01:11:33 - Advice for his younger self01:18:32 - Outro𝗪𝗵𝗲𝗿𝗲 𝘁𝗼 𝗳𝗶𝗻𝗱 𝗗𝗮𝘃𝗶𝗱:• LinkedIn: https://www.linkedin.com/in/davidronca/• Personal Website: https://www.roncatech.com/𝗪𝗵𝗲𝗿𝗲 𝘁𝗼 𝗳𝗶𝗻𝗱 𝗥𝘆𝗮𝗻:• Newsletter: https://www.developing.dev/• X/Twitter: https://x.com/ryanlpeterman• LinkedIn: https://www.linkedin.com/in/ryanlpeterman/• Threads: https://www.threads.com/@ryanlpeterman• Instagram: https://www.instagram.com/ryanlpeterman• TikTok: https://www.tiktok.com/@ryanlpeterman

Ryan Olson grew from mid-level engineer (IC4) to a principal engineer (IC8) at Instagram through a series of famous projects. The most notable was when he was the lead iOS developer that built Instagram Stories. We discuss his career journey and learnings.𝗣𝗼𝗱𝗰𝗮𝘀𝘁 𝗹𝗶𝗻𝗸𝘀:• Transcript: https://www.developing.dev/p/instagram-principal-eng-ic8-on-building• Spotify: Episode link from Spotify after scheduling• YouTube: https://youtu.be/gpVETZnY9Y0• Apple: https://podcasts.apple.com/au/podcast/the-peterman-pod/id1777363835• Zuckerberg emails I mentioned:Twitter link: https://x.com/TechEmails/status/1944451283236303184Threads link: https://www.threads.com/@techemails/post/DMDi5IWpPyC𝗧𝗶𝗺𝗲𝘀𝘁𝗮𝗺𝗽𝘀:00:00:00 - Intro00:00:31 - Failing his FB interview00:03:27 - Interning /w future billionaires00:14:08 - Interview nerves tip00:16:37 - Early Instagram experiences00:34:08 - Building Instagram Stories00:45:03 - 1 promo per half to Staff (IC6)00:49:51 - Senior staff promo project (IC7)00:57:37 - IG labs & his principal promo (IC8)01:08:19 - Starting Retro and leaving big tech01:21:33 - Small teams hypothetical01:25:17 - Examples of talented individuals01:31:16 - Advice to his younger self01:34:45 - Outro𝗪𝗵𝗲𝗿𝗲 𝘁𝗼 𝗳𝗶𝗻𝗱 𝗥𝘆𝗮𝗻:• Retro (his company): https://retro.app/• LinkedIn: https://www.linkedin.com/in/ryanolsonk/• X/Twitter: https://x.com/ryanolsonk• Instagram: https://www.instagram.com/ryanolsonk/ • Threads: https://www.threads.com/@ryanolsonk𝗪𝗵𝗲𝗿𝗲 𝘁𝗼 𝗳𝗶𝗻𝗱 𝗥𝘆𝗮𝗻:• Newsletter: https://www.developing.dev/• X/Twitter: https://x.com/ryanlpeterman• LinkedIn: https://www.linkedin.com/in/ryanlpeterman/• Threads: https://www.threads.com/@ryanlpeterman• Instagram: https://www.instagram.com/ryanlpeterman• TikTok: https://www.tiktok.com/@ryanlpeterman

In this episode, I talked to Nimit Sohoni, a Stanford PhD and AI Researcher at Cartesia who previously worked as a quant at Citadel. We discussed the differences between AI research and quant careers, including work-life balance and the value of a PhD in these fields. Nimit also shared what he's currently working on and offered advice for those looking to transition into AI research.𝗣𝗼𝗱𝗰𝗮𝘀𝘁 𝗹𝗶𝗻𝗸𝘀:• YouTube: https://youtu.be/_jECS37M3dQ• Apple: https://podcasts.apple.com/us/podcast/the-peterman-pod/id1777363835• Transcript: https://www.developing.dev/p/stanford-phd-ai-researcher-and-quant𝗧𝗶𝗺𝗲𝘀𝘁𝗮𝗺𝗽𝘀:00:00:00 - Intro00:00:45 - Do you need a PhD?00:06:25 - Research taste and finding problems00:09:04 - Why become a quant00:12:01 - What quants do00:14:53 - How quants and SWEs collaborate00:16:29 - Quant vs tech culture00:26:39 - Quant firm tier list00:27:56 - Quant insider trading and perf culture00:30:53 - Going back to AI research00:35:08 - Who the top competitors are in voice AI00:39:22 - AI startups vs big labs00:42:08 - State space models vs transformers00:49:33 - AI labs: research or product?00:52:38 - Advice for SWEs who want to try AI research00:56:48 - Advice for younger self00:57:49 - Outro𝗪𝗵𝗲𝗿𝗲 𝘁𝗼 𝗳𝗶𝗻𝗱 𝗡𝗶𝗺𝗶𝘁:• Twitter/X: https://x.com/nimit_sohoni• LinkedIn: https://www.linkedin.com/in/nimit-sohoni-68998854/• Cartesia: https://cartesia.ai/sonic𝗪𝗵𝗲𝗿𝗲 𝘁𝗼 𝗳𝗶𝗻𝗱 𝗥𝘆𝗮𝗻:• Newsletter: https://www.developing.dev/• X/Twitter: https://x.com/ryanlpeterman• LinkedIn: https://www.linkedin.com/in/ryanlpeterman/• Threads: https://www.threads.com/@ryanlpeterman• Instagram: https://www.instagram.com/ryanlpeterman• TikTok: https://www.tiktok.com/@ryanlpeterman

Laurent Charignon was a Staff engineer at Stripe, Airbnb, and Instagram with some experience in management as well. We discussed the unspoken rules you learn as a manager, how he transitioned, what good mentorship looks like, and advice for senior engineers who are stuck looking to grow to Staff.𝗣𝗼𝗱𝗰𝗮𝘀𝘁 𝗹𝗶𝗻𝗸𝘀:• Transcript: https://www.developing.dev/p/airbnb-staff-eng-on-how-to-not-get• YouTube: https://youtu.be/cgQY_1Uz2b8• Apple: https://podcasts.apple.com/us/podcast/the-peterman-pod/id1777363835𝗧𝗶𝗺𝗲𝘀𝘁𝗮𝗺𝗽𝘀:00:00:00 - Intro00:00:44 - Joining Airbnb and transitioning to EM00:18:29 - Untold rules of calibrations00:23:50 - How to dispute bureaucracy00:29:54 - Airbnb culture00:31:36 - Leaving Airbnb for Meta00:35:56 - Uber TL at Stripe00:42:52 - How to scale yourself00:45:22 - What people get wrong in coaching00:52:58 - Why people get stuck at Senior eng00:57:24 - Most career impacting book00:58:39 - Advice for younger self01:00:27 - Outro𝗪𝗵𝗲𝗿𝗲 𝘁𝗼 𝗳𝗶𝗻𝗱 𝗟𝗮𝘂𝗿𝗲𝗻𝘁:• LinkedIn: https://www.linkedin.com/in/laurentcharignon/• Personal Website: https://blog.laurentcharignon.com/• Twitter/X: https://x.com/lc2817𝗪𝗵𝗲𝗿𝗲 𝘁𝗼 𝗳𝗶𝗻𝗱 𝗥𝘆𝗮𝗻:• Newsletter: https://www.developing.dev/• X/Twitter: https://x.com/ryanlpeterman• LinkedIn: https://www.linkedin.com/in/ryanlpeterman/• Threads: https://www.threads.com/@ryanlpeterman• Instagram: https://www.instagram.com/ryanlpeterman• TikTok: https://www.tiktok.com/@ryanlpeterman