The Technical Co-Founder Podcast with Fexingo: Engineering Founders, CTOs, and Building from Code cover art

The Technical Co-Founder Podcast with Fexingo: Engineering Founders, CTOs, and Building from Code

The Technical Co-Founder Podcast with Fexingo: Engineering Founders, CTOs, and Building from Code

By: Fexingo
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Lucas and Luna sit down with engineering founders and CTOs who ship code, not slide decks. Each episode deconstructs how a technical leader chose their stack, scaled the engineering team, and balanced building against fundraising — from the first commit to the series A. Lucas presses for concrete metrics: deployment frequency, incident response times, burn rate per engineer. Luna challenges the guest on hiring philosophy, monorepo decisions, and when to rewrite vs. refactor. The show serves experienced software engineers considering a co-founder role, early-stage CTOs looking for war stories, and product-minded developers who want to understand the business side of code. No fluff, no motivational speeches — just the real trade-offs between shipping fast and building robust systems, told by the people who made the calls. You'll walk away with a mental model for choosing your first cloud provider, structuring a two-pizza team, or deciding whether to take outside funding at all. #TechnicalCoFounder #CTO #EngineeringLeadership #StartupEngineering #TechStack #SoftwareArchitecture #FounderAdvice #CodeReview #Scalability #DevOps #StartupCulture #EngineeringManagement #VentureCapital #StartupFunding #BusinessPodcast #FexingoBusiness #Business #Technology Keep every episode free: buymeacoffee.com/fexingo© 2026 Fexingo. All rights reserved. Economics
Episodes
  • How One Startup Uses Developer-Led Security to Ship Without a Dedicated Sec Team

    How One Startup Uses Developer-Led Security to Ship Without a Dedicated Sec Team
    Jun 29 2026
    Episode 80 of The Technical Co-Founder Podcast — Lucas and Luna explore how a 25-person B2B SaaS startup called LayerVault replaced traditional security tooling with developer-led practices. They walk through LayerVault's adoption of Sigstore for software supply chain signing, OpenSSF Scorecards for open-source dependency hygiene, and a lightweight threat modeling ritual that engineers run as part of their sprint planning. Lucas breaks down how the company reduced its mean time to remediate critical vulnerabilities from 14 days to under 48 hours without hiring a single dedicated security hire. Luna challenges whether this approach scales past 50 engineers and presses on the cultural prerequisites. The episode closes with a reflection on when developer-led security becomes a bottleneck rather than an enabler. #LayerVault #Sigstore #OpenSSF #DeveloperLedSecurity #ThreatModeling #SoftwareSupplyChain #ShiftLeft #B2BSaaS #EngineeringCulture #VulnerabilityManagement #SprintPlanning #StartupSecurity #BusinessAndTechnology #TechnicalCoFounder #FexingoBusiness #BusinessPodcast #SecureDevelopment #DevSecOps Keep every episode free: buymeacoffee.com/fexingo
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    10 mins
  • How One Startup Uses Schema Drift Detection to Prevent Database Disasters

    How One Startup Uses Schema Drift Detection to Prevent Database Disasters
    Jun 28 2026
    In this episode, Lucas and Luna explore how a fast-growing B2B SaaS company called DataSync avoided a catastrophic production outage by catching a silent schema drift before it reached production. They walk through the specific tooling — a combination of declarative migrations, CI checks, and a custom drift detector that compares the intended schema against the live database on every deploy. The case study shows how the team reduced deployment-related database incidents from five per quarter to zero over six months. Lucas explains why traditional migration scripts are insufficient when multiple engineers ship database changes in parallel, and how treating schema as code with automated verification closes a critical gap in the deployment pipeline. The episode also touches on the broader principle: as organizations adopt trunk-based development and deploy many times a day, database schema management becomes the bottleneck — and drift detection is the overlooked solution. #SchemaDrift #Database #DataSync #B2BSaaS #DevOps #CI #TrunkBasedDevelopment #Migration #TechOps #DatabaseReliability #Infrastructure #SoftwareEngineering #Startup #BusinessAndTechnology #FexingoBusiness #BusinessPodcast #Engineering #PostgreSQL Keep every episode free: buymeacoffee.com/fexingo
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    9 mins
  • How One Startup Uses WebAssembly to Replace Container Sidecars

    How One Startup Uses WebAssembly to Replace Container Sidecars
    Jun 28 2026
    Episode 78 dives into a specific technical decision: how one early-stage infrastructure startup replaced its sidecar proxies with WebAssembly modules running in the data plane. Lucas and Luna walk through the company's original architecture—a standard Envoy sidecar per pod—and the problems that emerged as they scaled to 200 microservices: memory overhead, version drift, and cold-start latency. They explain the shift to a Wasm-based filter chain, how it cut memory-per-node by 60 percent and reduced deployment coupling between platform and product teams. Luna raises the operational trade-off: Wasm debugging is still immature. Lucas points to the emerging Wasm ecosystem—specifically the bytecode alliance's runtime and the rise of Wasm-native API gateways. The episode ends with a reflection on when a sidecar replacement makes sense and when it doesn't, using the startup's specific metrics as the guide. If you're evaluating service mesh alternatives or wondering where WebAssembly fits in production infrastructure, this episode gives you one grounded example to start from. #WebAssembly #SidecarProxy #Envoy #ServiceMesh #CloudNative #Infrastructure #Startup #Microservices #PlatformEngineering #BytecodeAlliance #WasmRuntime #DataPlane #PodArchitecture #ColdStart #MemoryOptimization #BusinessAndTechnology #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo
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    6 mins
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