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 Serverless SQL to Query Data Lakes in Real Time

    How One Startup Uses Serverless SQL to Query Data Lakes in Real Time
    Jul 4 2026
    Lucas and Luna dive into the story of a logistics startup that replaced nightly batch ETL jobs with serverless SQL queries against their data lake. The founders were struggling with a 24-hour delay in shipment tracking data. By switching to Athena and Presto on S3, they cut query latency from hours to seconds and reduced their data infrastructure bill by 60%. Lucas explains the technical architecture: partitioned Parquet files, columnar compression, and how they used AWS Glue for schema inference. Luna asks the hard questions about when this approach breaks down—like concurrency limits and hot partitions. They also discuss the trade-offs between serverless SQL and traditional data warehouses like Redshift or Snowflake. If you're building analytics on raw data without wanting to manage a cluster, this episode is a practical blueprint. #ServerlessSQL #DataLake #Athena #Presto #AWSGlue #Parquet #ColumnarStorage #Logistics #RealTimeAnalytics #ETL #DataEngineering #Business #Technology #FexingoBusiness #BusinessPodcast #TechnicalCoFounder #StartupStack #Infrastructure Keep every episode free: buymeacoffee.com/fexingo
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    9 mins
  • How One Startup Uses WebGPU for In-Browser ML Inference

    How One Startup Uses WebGPU for In-Browser ML Inference
    Jul 3 2026
    This episode explores how a small AI startup replaced cloud-based GPU inference with WebGPU, running neural networks directly in the browser. Lucas and Luna break down the technical details: how WebGPU maps to modern GPUs, the performance trade-offs compared to server-side inference, and why latency-sensitive applications like real-time video filters benefit from client-side compute. They walk through a concrete example—a startup called PixelMind that cut inference latency from 200ms to under 10ms by moving their model to the client. The hosts discuss the challenges: limited memory on mobile GPUs, browser sandbox restrictions, and the need to quantize models without losing accuracy. They also touch on the broader implications for privacy and edge computing. Tune in for a specific, numbers-driven look at one team's journey from cloud to browser. #WebGPU #MachineLearning #InBrowserML #GPUCompute #EdgeAI #PixelMind #StartupTech #RealTimeInference #ModelQuantization #LatencyOptimization #ClientSideAI #TechDeepDive #BusinessAndTech #FexingoBusiness #BusinessPodcast #Engineering #CTO #TechnicalCoFounder Keep every episode free: buymeacoffee.com/fexingo
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    10 mins
  • How One Startup Uses SignalR for Real-Time Dashboard Syncing

    How One Startup Uses SignalR for Real-Time Dashboard Syncing
    Jul 3 2026
    In this episode, Lucas and Luna explore how a growing fintech startup replaced polling-based dashboard refreshes with ASP.NET Core SignalR, cutting server load by 70% and delivering sub-200ms updates to 50,000 concurrent users. They walk through the startup's migration from WebSocket raw sockets to SignalR's automatic transport fallback, the hub architecture that avoided memory leaks, and the one scaling gotcha that nearly broke their Redis backplane. No hype—just the concrete tradeoffs of using persistent connections for live data at mid-scale. #SignalR #RealTimeDashboards #ASPNetCore #WebSockets #Fintech #SystemDesign #BackendEngineering #Scaling #Redis #ServerPush #LatencyOptimization #EngineeringPodcast #Business #Technology #FexingoBusiness #BusinessPodcast #TheTechnicalCoFounder #StartupEngineering Keep every episode free: buymeacoffee.com/fexingo
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    8 mins
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