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Tomas Zezula's avatar

Tomas Zezula

I help SaaS startups and product-led businesses build, fix, and scale their billing and subscription systems—especially with Stripe.

With 20+ years of engineering experience and a specialty in billing architecture, I guide teams through critical monetization milestones.


Articles

  1. The Real Problem with Usage-Based Billing Isn't Tracking – It's Proofmedium.com
  2. What If Billing Logic Didn’t Live in Code Anymore?medium.com

Social Links


Products

Billing Atlas helps SaaS founders choose the right billing platform (Stripe, Paddle, MoR, etc.) without guesswork.

No vendor bias — just clear comparisons, real trade-offs, and practical guidance based on real-world experience.

Built for developers and founders who need to figure out billing fast.

👉 https://billingatlas.io

  1. Invoice Tracker

    I built a simple system to track unpaid invoices in Google Sheets and act on them with email follow-ups.

Recent activity

Apr 3, 2026created a post
I built a site to answer one question: how should I handle billing?
Dec 12, 2025commented on a post
I wasted 6 months + $8k on a bad idea — built this so you don’t have to

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