Game Mathematician

We  are a product powerhouse building a full-stack ecosystem for iGaming businesses. 40M+ players. 250 brilliant minds. One bet: our technology is so rock-solid that we stake our own business on it.
From our hubs in Ukraine, Georgia, the UK, and the Philippines, we blend real-world experience, a battle-tested Tech Radar, all within an open-door culture. 

We invite Game Mathematician  to join the VeliPlay team.
VeliPlay is our homegrown game studio — where crash, instant, and real-time mechanics meet bold ideas and sharp execution. Backed by the full power of the VeliTech ecosystem, we built games for today’s players — and tomorrow’s hits. 
Here, dev meets design, sound meets strategy, and every sprint is driven by one goal: crafting gameplay that feels alive. 

In this role, you will:

• Design and develop mathematical models for slot and crash games, including RTP, volatility, hit frequency, paytables, reel strips, multiplier curves, and house edge.
• Model and balance game features such as free spins, multipliers, Hold & Win, jackpots, Buy Feature, and cash-out mechanics.
• Tune RTP and volatility according to business, market, operator, and regulatory requirements.
• Develop Monte Carlo simulation tools to validate game mathematics across millions or billions of rounds.
• Ensure crash-game models and crash-point generation are statistically sound and provably fair where applicable.
• Work with developers to verify correct math model, RNG, and outcome logic implementation.
• Prepare mathematical documentation and support game certification with testing labs and regulators.
• Analyze live game performance, including RTP, hit rates, and crash-point distribution.
• Investigate and resolve math-related production issues, including payout, RTP, rounding, and edge-case errors.

Skills and experience you will need:

• Strong foundation in probability, statistics, combinatorics, distributions, expected value and variance.
• Experience in slot and crash game mathematics: reel strips, symbol weighting, paytables, feature frequency, multiplier/growth curves and house edge.
• Proficient in Monte Carlo simulations and mathematical modeling using Python and/or C#.
• Ability to visualize mathematical models and progressions in Python using libraries such as Matplotlib, including data preparation, charts and clear annotations of key stages.
• Knowledge of RNG and provably-fair mechanisms, including hash-based seeds, HMAC and verification.
• Comfortable with Excel/Google Sheets and basic SQL for modeling and game/player data analysis.
• 2–4 years of experience as a Game Mathematician, Quant, or similar, ideally with slots, crash or instant-win games.
• Familiarity with UKGC, MGA, Curaçao and other gaming certification requirements.
• Understanding of real-money/FinTech requirements, including transaction integrity, auditability and financial accuracy.
• Strong analytical, problem-solving and communication skills; able to explain complex mathematical concepts visually and to non-technical stakeholders.
• Comfortable working cross-functionally with Engineering, Design, Legal/Compliance and QA.

Intro Call with TA Specialist → Technical Interview → Final interview → Offer

Work your way. Remote, hybrid, Kyiv office — find your rhythm.
Level up daily. Real mentorship, a clear career path, and support to lead your product. 
Battle-tested tech stack. Work with what we bet on: microservices, serverless, SRE strength.
Health comes first. Insurance and 10 days' sick leave — because your health is a priority.
Time off that matters. 20 days paid vacation, public holidays — to recharge your way.
Build your brand. Share your story, grow your voice — inside and out.
Culture with a pulse. Team offsites, community events, and the energy of people who care.