Jakub Chadim, portrait
Jakub Chadim
EngineeringProduct15 years

Product engineer.
Founder in the making.

Founding frontend engineer behind a $31M ARR company. Co-founder of two SaaS products. Now building toward my own.

Kostelec nad Orlicí · CZ ↓

Founding frontend engineer at the fastest-growing tech company in Central Europe. Scaled the product from zero to $31M ARR and a $95M valuation. Now building toward my own venture-scale company.

$31M

ARR at Oddin.gg, where I owned the frontend from day one

300+

operators running products I built

30+

languages in a B2C app used daily

100k+

schemas deployed by my SaaS

Now

  1. 01

    Valka.AI

    AI-native entertainment: real-time synthetic video and AI personas. €12M pre-seed.

    senior frontend engineer

    ↗
  2. 02

    Instant Schema

    Crawls a whole website, generates structured data for every page with AI and keeps it in sync as content changes.

    co-founder

    ↗
  3. 03

    3DAY.STUDIO

    Senior design, engineering and marketing team for technical B2B founders. 60+ projects shipped.

    engineering partner

    ↗

Track record

  1. 2019 – 2025Founding Frontend Engineer → Product Architect

    Oddin.gg

    $31M ARR

    One of three founding engineers and the only one on frontend. Took the flagship products from idea to production while the company scaled to $31M ARR and a $95M valuation. Deloitte Fast 50 winner two years in a row.

    • Solely designed and built the trading platform — GraphQL schema, flows, UX and UI — processing billions of EUR. Rated by traders as the best tool they had used.
    • Delivered the B2C betting app solo, then led its redesign into a tokenized design system that operators customize through configuration.
    • Architecture ran for 7 years without a rewrite; now powering esports betting for Stake, Betway, Betsson and 300+ operators.
  2. 2024 – nowCo-founder

    Schema Flow

    1,950+ users

    Webflow app for structured data that became a Top 3 SEO app in its category — 1,950+ active users and 100k+ schemas deployed.

    • Built a no-code editor rendered dynamically from JSON-LD, and infrastructure that handles high traffic at minimal cost.
    • Evolved an AI schema generator into a full-site analysis engine — which became Instant Schema.
  3. 2017 – 2019Frontend Developer

    RTSmunity

    market makers

    Mission-critical back-office trading application. Designed and built a new trading tool for market makers end to end.

  4. 2013 – 2016Web Developer

    Freelance

    the beginning

    Websites and platforms for agencies and design studios — from pixel-perfect frontends to PHP backends.

How I build

01

Own it end to end

Problem, architecture, UX, code, launch. I have shipped products without a designer and without a spec — and they held up.

02

Build for year seven

Simple, testable systems that stay easy to change long after the first launch.

03

Ship, then listen

Small teams, fast loops, real users. The market decides what the product becomes.

TypeScript · React · Next.js · Node.js · GraphQL · Tailwind CSS · LLM pipelines & evals · Design systems

What’s next

Let’s build something big.

I’m preparing to build my own venture-backed company — product-led, AI-native, built to scale. If you are a founder looking for a technical co-founder, an investor, or an engineer who wants to build something big from day one, I’d like to hear from you.

[email protected]LinkedInCV.pdf