Senior Slot Math Designer / Game Mathematician (In-House Studio)

We are looking for a senior-level specialist who can combine deep expertise in slot mathematics with a strong understanding of game development and simulation processes.

The role involves end-to-end ownership of slot mathematical models, active participation in internal framework development and close collaboration with cross-functional teams.

About the role

We develop slot games in-house and are looking for a strong senior mathematician. You will not only design the mathematical models of our games, but also help shape the framework in which those models are built and simulated: advising on architecture and contributing to its development.

Requirements

Industry experience

• 5+ years of commercial experience designing slot math at a provider or studio (not an operator).
• At least 10 games released to production, ideally with titles that have performed well in the market.

• Experience across game types: classic reel slots, ways/Megaways, cluster pays, grid slots, buy features, jackpots.

   

Slot mathematics

• Strong command of probability theory, combinatorics and mathematical statistics as applied to slots.
• Ability to design a model from scratch against target parameters: RTP, volatility, hit frequency, max win, win distribution, feature RTP contribution.
• Design and tuning of reel strips, symbols and paytables, free spins, multipliers, cascades, bonus rounds and progressive mechanics.
• Understanding of bonus buy and ante bet math, as well as multiple RTP versions of the same game.
• Ability to balance gameplay feel: feature pacing, hit frequency and win size.

Validation and simulation

• Accurate RTP calculation, both analytical (where possible) and simulation-based (Monte Carlo over billions of spins).
• Analysis of variance, confidence intervals and simulation convergence.
• Knowledge of regulatory and test-lab requirements (GLI, BMM, eCOGRA, iTech Labs, etc.): math reports, PAR sheets, RTP certification.

Soft skills and language

• Fluent English (documentation, regulators, communication with partners).
• Ability to explain math clearly to game designers, producers and developers.
• Autonomy: able to own a game’s math from concept through certification.
• Mentoring experience or willingness to coach mid-level and junior mathematicians.

Nice to have

Programming (a big plus)

• Fluency in at least one of: Python, C++, C#, Rust, Java or Go.
• Ability to write high-performance simulation code: optimization, multithreading, handling large data volumes.
• Experience with Git, code review and testing.
• Ability to follow and contribute to architecture discussions with tech leads: interfaces, modularity, reproducibility of results (seeds, determinism).

Education and related experience

• Higher education in mathematics, applied mathematics, statistics, physics or a related field (Master’s degree or higher preferred).
• Experience contributing to or designing an internal framework/engine for building slot math.
• Knowledge of optimization methods (automated tuning of reels and tables to target parameters: genetic algorithms, simulated annealing, linear programming).
• Experience with crash games, instant games and other non-standard formats.
• Understanding of how math integrates with the game client and server.
• Publications, conference participation (ICE, SiGMA, G2E) and involvement in industry communities.

What you’ll do

• Design the math models for new slot games based on game design concepts, aligning with producers.
• Take part in designing and evolving our internal math and simulation framework: define requirements, review architecture, write code.
• Run simulations, validate RTP and prepare documentation for certification.
• Analyze production data from live games and propose improvements.
• Advise the team on math, optimization and risk when developing new mechanics.
• Build up in-house expertise and math development standards.

We offer

• Flexible schedule
• Competitive salary and annual performance review
• 20 days of vacation, 5 days off, 15 sick leaves, weekends on public holidays
• Birthday gifts, new year bonuses, and bonuses on the occasion of important events in the life of employees
• Medical insurance from the UNIQA company
• The opportunity for career and professional growth
• Free participation in conferences and other professional events
• Personal work equipment
• The ability to work in the office in a comfortable environment
• Corporate discounts and merch