We’re working with an established international iGaming business that develops online slot games across regulated markets globally. The business is now investing in the next generation of its game-engine technology, with a focus on modernising the underlying architecture, improving mathematical validation and building a new slot game engine from the ground up. This hire will play a key role in shaping that next engine and the technical direction of the platform. You’ll join a small specialist team alongside another Game Engine Engineer and a Game Mathematician, with significant ownership across architecture, mathematical validation and delivery. What you’ll be doing
* Designing and building a new slot game engine from scratch
* Owning game-engine projects end to end
* Working closely with mathematicians to turn mathematical models into production software
* Building simulations to validate game behaviour and expected outcomes
* Working with RTP, RNG, probability models and payout logic
* Comparing production data against simulations and expected mathematical behaviour




* Investigating discrepancies and improving engine architecture
* Helping define the technical direction of future game-engine development What they’re looking for
* Strong software engineering experience
* Proven experience building or owning game-engine, simulation-engine or similarly complex backend systems
* Ideally, experience building engine technology from scratch
* Strong understanding of mathematical or probability-driven systems
* Experience with simulations, RTP, RNG, probability or payout mechanics
* High ownership and evidence of delivering complex projects end to end
* Ability to work closely with mathematicians and translate mathematical requirements into reliable software
* Direct experience within slots, casino or iGaming is highly desirable The technology stack is C++. This is not a Unity, Unreal, graphics or gameplay-development role. The focus is on the underlying engine responsible for game logic, mathematics, simulations and payout outcomes. #J-18808-Ljbffr

📌 Senior Software Engineer (San Sebastián)
🏢 Stott And May
📍 San Sebastián