# Mathew Dostal — Fractional CTO & Principal Architect > Strategic technology leader specializing in Edge AI, Fintech Infrastructure, and Enterprise Scale. 15+ years architecting systems for Costco, Hertz, Wayfair, DaVita, and growth-stage startups. Based in Austin, TX. Available for fractional CTO engagements. ## About Mathew Dostal is a Fractional CTO and Principal Architect who helps growth-stage companies scale their technology, teams, and architecture. His experience spans enterprise retail (Costco, Kohl's), travel (Hertz — 6,000% throughput improvement), e-commerce (Wayfair), healthcare (DaVita dialysis infrastructure), and Edge AI (Frontiers Market livestock monitoring with Raspberry Pi clusters). He offers fractional CTO services, technical advisory, architecture reviews, and interim CTO engagements. ## Key Pages - [Home](https://mdostal.com): Portfolio overview and introduction - [Fractional CTO](https://mdostal.com/fractional-cto): Service offerings, engagement models, and how to work together - [Services](https://mdostal.com/services): Full list of advisory and consulting services - [Portfolio](https://mdostal.com/portfolio): Case studies and project highlights - [Resume](https://mdostal.com/resume): Complete career history and accomplishments - [Writing](https://mdostal.com/blog): Technical blog on architecture, AI, leadership, and scaling - [Contact](https://mdostal.com/contact): Get in touch or book a call - [Book a Call](https://book.mdostal.com): Schedule a conversation directly ## Case Studies - [Hertz - Digital Transformation & Performance](https://mdostal.com/portfolio/hertz-digital-transformation): Led digital transformation and performance engineering for a global rental leader, achieving a 6,000% throughput improve - [Chick-fil-A - Offline-First Ordering & Device Mesh](https://mdostal.com/portfolio/chickfila-offline-ordering): $20M EY engagement: architected offline-capable ordering with Ditto and event queues for device-to-device communication, - [Frontiers Market - Edge AI NVR System](https://mdostal.com/portfolio/frontiers-edge-ai-nvr): Local-first video monitoring infrastructure for livestock management in low-connectivity rural environments using Raspbe - [Frontiers Market - Escrow & Payment Rails](https://mdostal.com/portfolio/frontiers-escrow-payments): Financial settlement infrastructure using Stripe Connect with separate charges and transfers to create a trustless escro - [Wayfair - Supply Chain Optimization](https://mdostal.com/portfolio/wayfair-supply-chain): Built internal tools that rectified supply chain workflows, improved image pipelines, reduced fraud, and optimized day-t - [Costco Mobile Commerce](https://mdostal.com/portfolio/costco-mobile-commerce): Mobile architect for one of the world's largest retailers, designing the mobile web shopping experience on IBM WebSphere - [Frontiers Market - Livestock Mobile App](https://mdostal.com/portfolio/frontiers-mobile-app): Native iOS application with on-device computer vision for livestock identification and management, featuring store-and-f - [Frontiers Market - Marketplace Platform](https://mdostal.com/portfolio/frontiers-marketplace): Multi-tenant marketplace platform for cattle trading with comprehensive registry, lineage tracking, and real-time invent - [Reserved - Venue Management SaaS](https://mdostal.com/portfolio/reserved-venue-management): Multi-tenant SaaS platform for venue reservation management with dynamic rules engine for complex regulatory compliance - [Shindig - Event Discovery](https://mdostal.com/portfolio/shindig-event-discovery): Kotlin Multiplatform mobile application aggregating events from Ticketmaster, Eventbrite, and Facebook with geo-spatial - [Tabletop Archive - P2P Rental Marketplace](https://mdostal.com/portfolio/tabletop-archive-marketplace): Peer-to-peer rental marketplace for gaming equipment with Stripe escrow, state machine-driven inventory management, and ## Blog Posts - [How to Hire Engineers](https://mdostal.com/blog/how-to-hire-engineers): Google's own research found zero correlation between interview scores and job performance. After hiring dozens of engine - [Why You Probably Don't Need a Full-Time CTO](https://mdostal.com/blog/why-your-startup-doesnt-need-a-full-time-cto): The work I do now as a fractional CTO isn't new. But it's different from consulting in ways that matter — and the compan - [The Architecture Behind a 6,000% Throughput Improvement at Hertz](https://mdostal.com/blog/architecture-behind-6000-percent-throughput-hertz): Rates changed 10,000 times per second — too fast to cache. But the tens of thousands of rules that determined which rate - [I Built a 35-Agent AI Coding Swarm That Runs Overnight](https://mdostal.com/blog/35-agent-ai-coding-swarm): I built a 35-agent AI coding swarm that processes 20-40 tickets overnight, turning them into PRs by morning. It runs on - [Right-Sizing Your DevOps Stack](https://mdostal.com/blog/right-sizing-your-devops-stack): Most DevOps problems aren't about tools, they're about people. Stop over-engineering and start shipping with a right-siz - [What Does a CTO Actually Do?](https://mdostal.com/blog/what-does-a-cto-actually-do): Hint: it's not picking databases. The CTO role is about translating between two worlds that don't speak the same languag - [The Week I Stopped Coding: Orchestrating an Army of AI Agents](https://mdostal.com/blog/the-week-i-stopped-coding): I've stopped coding, but not building. Orchestrating an army of AI agents now, I see how it echoes enterprise digital tr ## Contact - Website: https://mdostal.com - LinkedIn: https://www.linkedin.com/in/mdostal - GitHub: https://github.com/mdostal - X/Twitter: https://x.com/dammitdostal - Facebook: https://www.facebook.com/dostal.technology - Email: dostalmathew@gmail.com - Book a Call: https://book.mdostal.com