Lead Game Mathematician

Math is our edge. You'll design the models that make our games thrilling, fair and certifiable — and set the standard for every title we ship.

Responsibilities

• Design and own complete slot math models: RTP, volatility, hit frequency, feature triggers, max-win profiles
• Build simulations and tooling to validate models across millions of rounds
• Partner with developers to implement math faithfully and with the Producer to hit certification RTP targets
• Push mechanical innovation — the kind of high-volatility, streamer-friendly math that defines the category

Must-haves

• Degree in Mathematics, Statistics, Physics or similar (advanced probability)
• 7+ years designing slot/casino game math in iGaming
• Strong programming for simulations (Python/C#/C++ or similar)
• Track record of shipped, certified titles

Nice-to-haves

• Experience with lab certification (GLI/BMM/eCOGRA)
• Novel mechanic design
• Understanding of player engagement/retention data

What we offer

• Founding-team equity/phantom shares
• Top-of-market salary for this rare skill
• 25+ days leave
• Private health insurance
• Multisport
• Hardware & training budgets
• Remote-friendly
• The freedom to invent mechanics, not tweak templates

About us

Open Games is a new, founder-funded B2B games studio building original, high-volatility online casino games for the real-money iGaming market. We'll distribute through leading aggregators to operators worldwide, and we're assembling a small, senior founding team in Bulgaria — offices in Sofia and Plovdiv, remote-friendly across the country. Our plan is deliberate: ship a tight portfolio of genuinely distinctive games, win on math and art, and grow with the people who built us. Join now and you're not employee #200 at a corporation — you're a founding voice with real ownership of the product.