William Morgan is the CEO of Buoyant and the creator of Linkerd, the world's first service mesh and a CNCF graduated project powering production Kubernetes infrastructure at thousands of companies. Before founding Buoyant, William spent nearly four years at Twitter as a software engineer and engineering manager, where he shipped core platform features like the Twitter photo service and embed timelines — and watched the legendary monolith-to-microservices transformation unfold firsthand.

In this episode, we cover what it was like engineering at Twitter during the fail whale era, how decomposing a monolith introduces entirely new networking challenges, why William invented the term "service mesh," and how Linkerd gives platform teams reliability, security, and observability without developers having to think about it.

Whether you're a platform engineer running Kubernetes in production, an SRE trying to make sense of service-to-service communication, or a developer curious about what infrastructure teams actually do — this conversation is packed with hard-won lessons from a decade of building critical open source infrastructure.

🔸 Key Topics:

- Engineering at Twitter in 2010: the Rails monolith, Scala rewrite, and microservices transformation

- How replacing function calls with network calls changes everything

- What a service mesh is and why the term had to be invented

- Control plane vs data plane architecture

- Why Linkerd rewrote its proxy from Scala/JVM to Rust

- Latency-aware load balancing, mTLS, and protocol detection

- Multi-cluster communication and mesh expansion to VMs

- Common service mesh implementation mistakes

- Linkerd vs Istio: William's honest take

- Open source sustainability and enterprise monetization

- The enterprise sales journey from engineer to CEO

- Book recommendations: Hyperion, Gideon the Ninth, The Book of the New Sun

🔗 FOLLOW WILLIAM

💼 LinkedIn: https://www.linkedin.com/in/wmorgan/

🐦 X/Twitter: https://x.com/wm

🌐 Buoyant: https://buoyant.io

🎙️ FOLLOW & SUBSCRIBE

📸 Instagram: https://www.instagram.com/senorsatscale/

📸 Instagram: https://www.instagram.com/neciudev

🎙 Podcast URL: https://neciudan.dev/senors-at-scale

📬 Newsletter: https://neciudan.dev/subscribe

💼 LinkedIn: https://www.linkedin.com/in/neciudan

💼 LinkedIn: https://www.linkedin.com/company/señors-scale/

📚 ADDITIONAL RESOURCES

- Linkerd: https://linkerd.io

- Buoyant: https://buoyant.io

- Linkerd Getting Started: https://docs.buoyant.io

- Linkerd GitHub (Proxy): https://github.com/linkerd/linkerd2-proxy

- Hyperion by Dan Simmons

- Gideon the Ninth by Tamsyn Muir

- The Book of the New Sun by Gene Wolfe

- Simon Willison's Blog (AI/LLMs): https://simonwillison.net

#Linkerd #ServiceMesh #Kubernetes #Rust #CloudNative #Buoyant #CNCF #Microservices #Infrastructure #PlatformEngineering #SoftwareEngineering #SenorsAtScale

💬 What's the most complex networking issue you've debugged in a microservices environment? Share your war stories in the comments!

You can never build anything faster than your slowest database query. In this episode, Tyler Benfield, Staff Software Engineer at Prisma, breaks down everything developers need to know about database performance, from why your queries are slow to how Prisma scales Postgres to handle billions of requests on bare metal infrastructure.

Tyler's path into databases started at Penske Racing, writing trackside software for NASCAR pit stops, and eventually led him deep into query optimization, connection pooling, and building Prisma Postgres from the ground up. We cover the most common ORM anti-patterns, why indexes are the single biggest performance lever most developers ignore, how Prisma Accelerate turns database connections into HTTP calls, and why Tyler thinks the SQL query language itself is fundamentally broken for modern web apps.

Whether you're a frontend developer afraid to touch the database or a backend engineer scaling past your first million users, this conversation is packed with practical, immediately actionable advice.

🔸 Key Topics:

- ORMs vs raw SQL vs query builders and when to use each

- The most common Prisma anti-patterns that tank your app performance

- How database indexes actually work (the address book analogy)

- Connection pooling, serverless runtimes, and the problem Prisma Accelerate solves

- Scaling Postgres on bare metal with memory snapshots and scale-to-zero

- Per-query pricing and why Prisma charges differently than other providers

- NoSQL vs SQL and when Postgres can handle both

- Why SQL is a bad query language for nested relational data

- The future of AI agents and databases, MCP servers, and ephemeral environments

🔗 FOLLOW TYLER

💼 LinkedIn: https://www.linkedin.com/in/tylerbenfield/

🐦 X/Twitter: https://x.com/rtbenfield

🦋 Bluesky: https://bsky.app/profile/rtbenfield.dev

🌐 Website: https://tylerbenfield.me

🎙️ FOLLOW & SUBSCRIBE

📸 Instagram: https://www.instagram.com/senorsatscale/

📸 Instagram: https://www.instagram.com/neciudev

🎙 Podcast URL: https://neciudan.dev/senors-at-scale

📬 Newsletter: https://neciudan.dev/subscribe

💼 LinkedIn: https://www.linkedin.com/in/neciudan

💼 LinkedIn: https://www.linkedin.com/company/señors-scale/

📚 ADDITIONAL RESOURCES

- Prisma ORM: https://www.prisma.io

- Prisma Postgres: https://www.prisma.io/postgres

- The Design of Everyday Things by Don Norman

- The Design of Future Things by Don Norman

- Designing Data-Intensive Applications by Martin Kleppmann

- Aaron Francis (database education): https://aaronfrancis.com

#Prisma #Postgres #DatabasePerformance #ORM #TypeScript #ServerlessDatabase #ConnectionPooling #SQLOptimization #WebDevelopment #SoftwareEngineering #FullStack #DatabaseIndexes #SenorsAtScale

💬 What's the worst database performance issue you've ever debugged? Share your war stories in the comments!

TanStack Form gets over a million downloads per week. Corbin Crutchley is the person behind it. But this conversation goes way beyond forms and frameworks.

Corbin started coding professionally at 16, worked minimum wage at a charter school, taught himself Angular through sheer persistence, and eventually became a GitHub Star, Microsoft MVP, author of The Framework Field Guide, and VP of Engineering at Immersive Homes. Along the way, he built one of the most beloved open source form libraries in the JavaScript ecosystem and founded Playful Programming, a nonprofit that teaches people how to code for free.

In this episode, we get into the real stuff: how he joined TanStack through a 30-minute conversation with Tanner Lindsley that turned into an invitation to lead a project, what it actually feels like to maintain a library that millions of projects depend on, why he almost quit open source after a wave of rude issues, and how he thinks about versioning as a social contract with your users. We also talk about framework agnostic architecture, why he wrote a free book that teaches React, Angular and Vue at the same time, the open source funding problem, and his transition from IC to VP of Engineering at Immersive Homes (which started with a game of Magic: The Gathering). He closes with something deeply personal about mental health in tech that I think everyone needs to hear.

📚 RESOURCES MENTIONED

- TanStack Form: https://tanstack.com/form

- TanStack: https://tanstack.com

- The Framework Field Guide: https://playfulprogramming.com/collections/framework-field-guide

- Playful Programming: https://playfulprogramming.com

- Diataxis Documentation Framework: https://diataxis.fr

- Will Larson's Books (An Elegant Puzzle, Staff Engineer): https://lethain.com

- Engineering Management for the Rest of Us by Sarah Drasner

- Shoe Dog by Phil Knight

🔗 FOLLOW CORBIN

- GitHub: https://github.com/crutchcorn

- LinkedIn: https://www.linkedin.com/in/corbincrutchley

- Bluesky: https://bsky.app/profile/crutchcorn.dev

- Twitch: https://twitch.tv/crutchcorn

🎙️ FOLLOW & SUBSCRIBE

📸 Podcast Instagram: https://www.instagram.com/senorsatscale📸 Dan's Instagram: https://www.instagram.com/nicudan📰 Newsletter: https://senorsatscale.substack.com💼 Dan's LinkedIn: https://www.linkedin.com/in/nicudan🌐 Website: https://neciudan.dev

#SoftwareEngineering #OpenSource #TanStack #TanStackForm #JavaScript #TypeScript #ReactJS #Angular #Vue #FrameworkAgnostic #GitHubStar #VPofEngineering #EngineeringLeadership #TechLeadership #MentalHealthInTech #WebDevelopment #SenorsAtScale