The Pragmatic Engineer

by Gergely Orosz
Software engineering at Big Tech and startups, from the inside. Deepdives with experienced engineers and tech professionals who share their hard-earned lessons, interesting stories and advice they have on building software. Especially relevant for software engineers and engineering leaders: useful for those working in tech. newsletter.pragmaticengineer.com
Episodes

Being a founding engineer at an AI startup
<p><strong>Brought to You By:</strong></p><p>• <a target="_blank" href="http://statsig.com/pragmatic"><strong>Statsig</strong></a> — The unified platform for flags, analytics, experiments, and more. </p><p>• <a target="_blank" href="https://linear.app/pragmatic?utm_source=gergely&utm_medium=newsletter&utm_campaign=pragmatic-engineer"><strong>Linear</strong></a> — The system for modern product development. </p><p>—</p><p><a target="_blank" href="https://www.linkedin.com/in/michlimlim">Michelle Lim</a> joined Warp as engineer number one and is now building her own startup, Flint. She brings a strong product-first mindset shaped by her time at Facebook, Slack, Robinhood, and Warp. Michelle shares why she chose Warp over safer offers, how she evaluates early-stage opportunities, and what she believes distinguishes great founding engineers.</p><p>Together, we cover how product-first engineers create value, why negotiating equity at early-stage startups requires a different approach, and why asking founders for references is a smart move. Michelle also shares lessons from building consumer and infrastructure products, how she thinks about tech stack choices, and how engineers can increase their impact by taking on work outside their job descriptions.</p><p>If you want to understand what founders look for in early engineers or how to grow into a founding-engineer role, this episode is full of practical advice backed by real examples</p><p>—</p><p><strong>Timestamps</strong></p><p>(00:00) Intro</p><p>(01:32) How Michelle got into software engineering </p><p>(03:30) Michelle’s internships </p><p>(06:19) Learnings from Slack </p><p>(08:48) Product learnings at Robinhood</p><p>(12:47) Joining Warp as engineer #1</p><p>(22:01) Negotiating equity</p><p>(26:04) Asking founders for references</p><p>(27:36) The top reference questions to ask</p><p>(32:53) The evolution of Warp’s tech stack </p><p>(35:38) Product-first engineering vs. code-first</p><p>(38:27) Hiring product-first engineers </p><p>(41:49) Different types of founding engineers </p><p>(44:42) How Flint uses AI tools </p><p>(45:31) Avoiding getting burned in founder exits</p><p>(49:26) Hiring top talent</p><p>(50:15) An overview of Flint</p><p>(56:08) Advice for aspiring founding engineers</p><p>(1:01:05) Rapid fire round</p><p>—</p><p><strong>The Pragmatic Engineer deepdives relevant for this episode:</strong></p><p>• <a target="_blank" href="https://newsletter.pragmaticengineer.com/p/thriving-as-a-founding-engineer">Thriving as a founding engineer: lessons from the trenches</a></p><p>• <a target="_blank" href="https://newsletter.pragmaticengineer.com/p/from-software-engineer-to-ai-engineer">From software engineer to AI engineer</a></p><p>• <a target="_blank" href="https://newsletter.pragmaticengineer.com/p/ai-engineering-in-the-real-world">AI Engineering in the real world</a></p><p>• <a target="_blank" href="https://newsletter.pragmaticengineer.com/p/the-ai-engineering-stack">The AI Engineering stack</a></p><p>—</p><p>Production and marketing by <a target="_blank" href="https://penname.co/"></a><a target="_blank" href="https://newsletter.pragmaticengineer.com/p/engineers-leading-projects">https://penname.co/</a>. For inquiries about sponsoring the podcast, email podcast@pragmaticengineer.com.</p> <br/><br/>Get full access to The Pragmatic Engineer at <a href="https://newsletter.pragmaticengineer.com/subscribe?utm_medium=podcast&utm_campaign=CTA_4">newsletter.pragmaticengineer.com/subscribe</a>

How AI will change software engineering – with Martin Fowler
<p><strong>Brought to You By:</strong></p><p>• <a target="_blank" href="http://statsig.com/pragmatic"><strong>Statsig</strong></a> — The unified platform for flags, analytics, experiments, and more. AI-accelerated development isn’t just about shipping faster: it’s about measuring whether, what you ship, actually delivers value. This is where modern experimentation with Statsig comes in. <a target="_blank" href="http://statsig.com/pragmatic">Check it out.</a></p><p>• <a target="_blank" href="https://linear.app/pragmatic?utm_source=gergely&utm_medium=newsletter&utm_campaign=pragmatic-engineer"><strong>Linear</strong></a> — The system for modern product development. I had a jaw-dropping experience when I dropped in for the weekly “Quality Wednesdays” meeting at Linear. Every week, every dev fixes at least one quality isse, large or small. Even if it’s one pixel misalignment, <a target="_blank" href="https://x.com/GergelyOrosz/status/1970855759639425349?s=20">like this one</a>. I’ve yet to see a team obsess this much about quality. Read more about <a target="_blank" href="https://linear.app/now/quality-wednesdays?utm_source=gergely&utm_medium=newsletter&utm_campaign=pragmatic-engineer">how Linear does Quality Wednesdays</a> – it’s fascinating!</p><p>—</p><p>Martin Fowler is one of the most influential people within software architecture, and the broader tech industry. He is the Chief Scientist at Thoughtworks and the author of <a target="_blank" href="https://www.amazon.com/Refactoring-Improving-Existing-Addison-Wesley-Signature/dp/0134757599"><em>Refactoring</em></a> and <a target="_blank" href="https://www.amazon.com/Patterns-Enterprise-Application-Architecture-Martin/dp/0321127420"><em>Patterns of Enterprise Application Architecture</em></a>, and several other books. He has spent decades shaping how engineers think about design, architecture, and process, and regularly publishes on his blog, <a target="_blank" href="http://MartinFowler.com">MartinFowler.com</a>.</p><p>In this episode, we discuss how AI is changing software development: the shift from deterministic to non-deterministic coding; where generative models help with legacy code; and the narrow but useful cases for vibe coding. Martin explains why LLM output must be tested rigorously, why refactoring is more important than ever, and how combining AI tools with deterministic techniques may be what engineering teams need.</p><p>We also revisit the origins of the Agile Manifesto and talk about why, despite rapid changes in tooling and workflows, the skills that make a great engineer remain largely unchanged.</p><p>—</p><p><strong>Timestamps</strong></p><p>(00:00) Intro</p><p>(01:50) How Martin got into software engineering </p><p>(07:48) Joining Thoughtworks </p><p>(10:07) The Thoughtworks Technology Radar</p><p>(16:45) From Assembly to high-level languages</p><p>(25:08) Non-determinism </p><p>(33:38) Vibe coding</p><p>(39:22) StackOverflow vs. coding with AI</p><p>(43:25) Importance of testing with LLMs </p><p>(50:45) LLMs for enterprise software</p><p>(56:38) Why Martin wrote Refactoring </p><p>(1:02:15) Why refactoring is so relevant today</p><p>(1:06:10) Using LLMs with deterministic tools</p><p>(1:07:36) Patterns of Enterprise Application Architecture</p><p>(1:18:26) The Agile Manifesto </p><p>(1:28:35) How Martin learns about AI </p><p>(1:34:58) Advice for junior engineers </p><p>(1:37:44) The state of the tech industry today</p><p>(1:42:40) Rapid fire round</p><p>—</p><p><strong>The Pragmatic Engineer deepdives relevant for this episode:</strong></p><p>• <a target="_blank" href="https://newsletter.pragmaticengineer.com/p/vibe-coding-as-a-software-engineer">Vibe coding as a software engineer</a></p><p>• <a target="_blank" href="https://newsletter.pragmaticengineer.com/p/the-ai-engineering-stack">The AI Engineering stack</a></p><p>• <a target="_blank" href="https://newsletter.pragmaticengineer.com/p/ai-engineering-in-the-real-world">AI Engineering in the real world</a></p><p>• <a target="_blank" href="https://newsletter.pragmaticengineer.com/p/what-changed-in-50-years-of-computing?utm_source=publication-search">What changed in 50 years of computing</a></p><p>—</p><p>Production and marketing by <a target="_blank" href="https://penname.co/"></a><a target="_blank" href="https://newsletter.pragmaticengineer.com/p/engineers-leading-projects">https://penname.co/</a>. For inquiries about sponsoring the podcast, email podcast@pragmaticengineer.com.</p> <br/><br/>Get full access to The Pragmatic Engineer at <a href="https://newsletter.pragmaticengineer.com/subscribe?utm_medium=podcast&utm_campaign=CTA_4">newsletter.pragmaticengineer.com/subscribe</a>

Netflix’s Engineering Culture
<p><strong>Brought to You By:</strong></p><p>• <a target="_blank" href="http://statsig.com/pragmatic"><strong>Statsig</strong></a> — The unified platform for flags, analytics, experiments, and more. Statsig enables two cultures at once: continuous shipping <em>and</em> experimentation. Companies like Notion went from single-digit experiments per quarter to over 300 experiments with Statsig. <a target="_blank" href="http://statsig.com/pragmatic">Start using Statsig</a> with a generous free tier, and a $50K startup program.</p><p>• <a target="_blank" href="https://linear.app/pragmatic?utm_source=gergely&utm_medium=newsletter&utm_campaign=pragmatic-engineer"><strong>Linear</strong></a> — The system for modern product development. When most companies hit real scale, they start to slow down, and are faced with “process debt.” This often hits software engineers the most. Companies switch to Linear to hit a hard reset on this process debt – ones like Scale cut their bug resolution in half after the switch. Check out <a target="_blank" href="http://linear.app/switch?utm_source=gergely&utm_medium=newsletter&utm_campaign=pragmatic-engineer">Linear’s migration guide</a> for details.</p><p>—</p><p>What’s it like to work as a software engineer inside one of the world’s biggest streaming companies?</p><p>In this special episode recorded at Netflix’s headquarters in Los Gatos, I sit down with Elizabeth Stone, Netflix’s Chief Technology Officer. Before becoming CTO, Elizabeth led data and insights at Netflix and was VP of Science at Lyft. She brings a rare mix of technical depth, product thinking, and people leadership.</p><p>We discuss what it means to be “unusually responsible” at Netflix, how engineers make decisions without layers of approval, and how the company balances autonomy with guardrails for high-stakes projects like Netflix Live. Elizabeth shares how teams self-reflect and learn from outages and failures, why Netflix doesn’t do formal performance reviews, and what new grads bring to a company known for hiring experienced engineers.</p><p>This episode offers a rare inside look at how Netflix engineers build, learn, and lead at a global scale.</p><p>—</p><p><strong>Timestamps</strong></p><p>(00:00) Intro</p><p>(01:44) The scale of Netflix </p><p>(03:31) Production software stack</p><p>(05:20) Engineering challenges in production</p><p>(06:38) How the Open Connect delivery network works</p><p>(08:30) From pitch to play </p><p>(11:31) How Netflix enables engineers to make decisions </p><p>(13:26) Building Netflix Live for global sports</p><p>(16:25) Learnings from Paul vs. Tyson for NFL Live</p><p>(17:47) Inside the control room </p><p>(20:35) What being unusually responsible looks like</p><p>(24:15) Balancing team autonomy with guardrails for Live</p><p>(30:55) The high talent bar and introduction of levels at Netflix</p><p>(36:01) The Keeper Test </p><p>(41:27) Why engineers leave or stay </p><p>(44:27) How AI tools are used at Netflix</p><p>(47:54) AI’s highest-impact use cases</p><p>(50:20) What new grads add and why senior talent still matters</p><p>(53:25) Open source at Netflix </p><p>(57:07) Elizabeth’s parting advice for new engineers to succeed at Netflix </p><p>—</p><p><strong>The Pragmatic Engineer deepdives relevant for this episode:</strong></p><p>• <a target="_blank" href="https://newsletter.pragmaticengineer.com/p/thte-scoop-23">The end of the senior-only level at Netflix</a></p><p>• <a target="_blank" href="https://newsletter.pragmaticengineer.com/p/the-scoop-29">Netflix revamps its compensation philosophy</a></p><p>• <a target="_blank" href="https://newsletter.pragmaticengineer.com/p/live-streaming-at-world-record-scale">Live streaming at world-record scale with Ashutosh Agrawal</a></p><p>• <a target="_blank" href="https://newsletter.pragmaticengineer.com/p/shipping-to-production">Shipping to production</a></p><p>• <a target="_blank" href="https://newsletter.pragmaticengineer.com/p/what-is-good-software-architecture">What is good software architecture?</a></p><p>—</p><p>Production and marketing by <a target="_blank" href="https://penname.co/"></a><a target="_blank" href="https://newsletter.pragmaticengineer.com/p/engineers-leading-projects">https://penname.co/</a>. For inquiries about sponsoring the podcast, email podcast@pragmaticengineer.com.</p> <br/><br/>Get full access to The Pragmatic Engineer at <a href="https://newsletter.pragmaticengineer.com/subscribe?utm_medium=podcast&utm_campaign=CTA_4">newsletter.pragmaticengineer.com/subscribe</a>