Filip L.

Austin, TX, USA

Principal engineer, startup VP, founder. Built NBC streaming for 10M+ users, scaled a 0 to 1 startup to $2M+, now building AI security

I've spent 12 years building products end to end, from first commit at a startup to Principal Engineer at NBCUniversal, and I still write production code every day. I move between founder-level strategy, system architecture, and hands-on engineering.


At NBC I was technical lead for streaming apps serving 10M+ users. I held 99.9%+ uptime through Olympics-scale traffic (2,000+ years of watch time in two weeks), cut build times ~90% with a modular architecture migration, and drove AI-assisted develo…

Filip L.

Work

  • Principal Software Engineer at NBCUniversal

    2017–2025 · Remote (Austin, TX)

    promoted Senior → Lead → Principal

    99.9%+ uptime for 10M+ users through Olympics-scale traffic (2,000+ years of watch time in two weeks) and NFL playoff peaks.

    Cut build times ~90% (15 min to ~2 min) by leading a monolith-to-modular migration across 4 platforms, with trunk-based development and feature flags.

    Cut playback start time 40% and rebuffering 4x with a custom …

    play.google.com
  • VP of Engineering at Batelle

    Part-time (~20h/week) · Remote (UK)

    first engineer → VP · team 0 to 6

    Built the full DTC product from scratch: mobile apps (native then React Native), Shopify storefront, WordPress marketing sites, and internal React dashboards.

    Built Stripe payment infrastructure: recurring subscriptions, one-time purchases, complex pricing tiers, and webhook orchestration.

    Migrated native iOS/Android to React Native

    Owned build-vs-buy and the technical roadmap, working directly with founders.

    Company raised $2M+.


  • Founder & Solo Engineer at Can I Trust That

    Founder & Solo Engineer at Can I Trust That

    Built a multi-agent LLM system that runs in production daily: a lead agent maps each app's architecture, then orchestrates 8 specialized investigators in parallel across security and privacy domains. 15,000+ obfuscated classes analyzed per app.

    Production stack: FastAPI backend, React frontend, Stripe billing, OTP auth, and 11 workers across 2 servers handling iOS/Android decompilation, CI/CD, and …

    canitrustthat.com
  • Founder at Calibra Lightbar

    smart-lighting hardware · concept to market

    Took a smart-lighting hardware product from concept to market: industrial design, IoT integration (Alexa, Google Assistant), manufacturing, and supply chain.

    Launched an e-commerce storefront and took pre-orders. Full product lifecycle beyond software.

    calibra.ai

Experience

  • NBC

    NBC

    Principal Software Engineer

    Mar 2020 - Aug 2025

    Principal Android Engineer at NBCUniversal, serving 10M+ users across streaming platforms (Peacock, NBC Sports, Bravo, Telemundo, USA) on Mobile, Fire TV, Android TV, and Kindle. Architected apps through Olympics-scale traffic (2,000+ years of watch time in 2 weeks) at 99.9%+ uptime. Reduced build times ~90% with a modular architecture migration and drove AI-assisted development adoption across teams. Tech: Kotlin, Jetpack Compose, ExoPlayer.

    • Cut video start time 40%, improved rebuffering 200% for 10M+ users
    • Mentored 8+ engineers, set Android standards company-wide
    • Led AI-assisted development adoption across 5 engineering teams
    • Published ExoPlayer optimization article, built HLS/DASH systems at scale
  • UI Centric

    UI Centric

    Lead Mobile Software Engineer

    Jul 2017 - Mar 2020

    Lead mobile engineer building and shipping NBC streaming apps across Android mobile, Fire TV, Android TV, and Kindle. Owned cross-platform delivery and led the mobile team through feature work and releases.

    • Promoted from contractor to team lead within 3 months
  • Lama P

    Lama P

    Software Engineer

    Dec 2014 - Jul 2017

    Built web and mobile apps for clients and managed a small development team, handling client relationships, project scoping, and delivery.

    • Built white-label restaurant platform serving 50+ locations across 6 brands
    • Created interactive wall with low-latency video responding to mobile input

Similar Members

  • Asher B. profile image
    Asher B.
    Fractional Principal Engineer
    1. Get In ContractGet In Contract
    2. MIRRORMIRROR
    Lead technical architect for Mirror, sold to Lululemon, 2x founder
    Hire Asher B.
  • Adam H. profile image
    Adam H.
    Fractional CTO
    1. Digital AlphaDigital Alpha
    2. – Optymizer– Optymizer
    Driving Technological Innovation and Excellence in SaaS and Intelligent Systems
    Hire Adam H.
  • Aaron G. profile image
    Aaron G.
    Fractional CTO
    1. SpotifySpotify
    2. Thrive GlobalThrive Global
    3. SuzySuzy
    Over a decade of CTO experience
    Hire Aaron G.