
Nolimit city Stockholm AB · Stockholm
To design our slot games isn't an easy task - especially not the mechanic side of the games. If you're a great dude/gal with amazing math skills that is up for ...
To design our slot games isn't an easy task - especially not the mechanic side of the games. If you're a great dude/gal with amazing math skills that is up for the challenge - then we're very interested to get in contact with you. We've got one thing which is important; you need to have great knowledge in casino products and hopefully also slots experience, and a general passion for games.
Who you are
You have a fantastic understanding for what makes a game exciting and fun.
In a team environment consisting of product management, graphic artistry, sound creation, game development and server development, you will contribute to deliver the best casino games in the market today.
Good knowledge of and solid experience of working with Java is a must.
Your strong analytical skills will help us to follow up on game performance to make the next game even better.
Who we are
We are the best and fastest growing slot provider in the world with the operator and product in focus, and the mobile future on our minds. Nolimit is a team of experienced professionals from the gambling industry in Stockholm, Sweden, Malta and Gurugram, India. Our company has derived from hands on work at some of the most successful gambling software providers and operators over the last 15 years. Our mission is to offer a fast, reliable and flexible team that cooperates with the best operators in the world, taking gambling to the next level.
We have a clean code high performance modern mini/micro service portable system platform for mobile and desktop that is 100 % under our own control. Since we have our own platform, this allows us to deliver special features and smooth, customizable marketing campaigns that are tailored to the operator's specific needs. We think it's time for a new angle to the gambling software industry – one where the product is in focus and we fully engage their promotion, marketing and country manager system/activities with our games. Nolimit work with customers on a global scale and the largest gambling operators in the world have our games everywhere.
Nolimit City, Stockholm based development team. We provide you with your choice of OS and IDE.
Send your application to wai@nolimitcity.com
About the Role Playson is a leading online gaming supplier with worldwide recognition which was founded in 2012. We offer complete gaming solutions based on the latest technologies and detailed market analysis for the leading iGaming operators. Operating with growth and scalability, we are excited to invite experienced Mathematicians to apply for the opening in the Game development squad. The chosen candidate will be collaborating with Product Owners and Mathematicians, and have an opportunity to contribute to the company’s overall goals. Key Responsibilities * Develop engaging game mathematics and mechanics in collaboration with Product Owners and cross-functional teams * Fine-tune game mathematics and mechanics into the best possible product * Perform simulations of game math to understand how it compares with the desired outcome and with other games in the portfolio * Provide competitive game math analysis to reveal valuable insights * Rapid prototyping of game mechanics to prove the concept * Be involved in the game creation process from start to finish * Collaborate with development teams, provide game math specifications * Be a discussion sparring partner inside our team to help build better games * Analyse risks and determine the probability of wins for player investigations * Share knowledge, establish best practices, and challenge the status quo * Provide analytical support, including Big Win validations, player session analysis, and RTP deviation monitoring to ensure game integrity and performance Requirements * Proven track record (3+ years) of successful work as a game mathematician in online gambling * Scripting skills, any programming language (Typescript, Javascript preferred) * Good understanding of main programming paradigms * Talent for solving abstract and highly complex math problems * High attention to detail: ability to spot even small mistakes in your math models and troubleshoot them * Interest in slot games both from a developer and player point of view * Ability to quickly prototype rough ideas * Basic understanding of HTTP client-server requests * Data-driven and analytical mindset in decision-making * Motivated by challenges and stretch goals * Good level of spoken and written English Nice to Have * Strong mathematical intuition, creativity, and curiosity * Ability to look at games from the players’ point of view * Practical experience with workflow management tools (Jira), collaboration software (Confluence) What we Offer * Competitive Salary: We offer a competitive salary in EUR, subject to annual performance reviews * Quarterly Bonuses: Benefit from a transparent and systematic quarterly bonus system * Flexible Schedule: We offer a flexible work schedule to accommodate your needs * Remote Work Option: Choose to work remotely, providing greater flexibility and comfort * Medical Insurance: Receive comprehensive medical insurance for both you and a significant other * Financial Support for Life Events: We provide financial support during special life events * Unlimited Paid Vacation: Enjoy unlimited paid vacation leave * Unlimited Paid Sick Leave: Take unlimited paid sick leave whenever necessary * Professional Development: Get reimbursement for professional development courses and training Recruitment Process * HR Interview * Take home assignment * Technical Interview * Final Interview
About the Role We’re looking for a Senior Software Engineer to join a newly forming team that will own one of the most specialised and business-critical domains in our technology landscape - Game Engine. This role sits at the intersection of engineering, game mathematics, platform, and compliance. You’ll work on the tools, frameworks, and services that enable our mathematicians and game teams to build, validate, run, and monitor game logic in production. This position is about deep ownership of a very specific technical domain: game engines, mathematical packages, simulation data, RTP monitoring, round details, and integrations with games developed both internally and by external studios. You’ll be part of a small, experienced team with a high level of responsibility. The impact of this work is direct: incorrect game logic, missing round details, or inaccurate RTP monitoring can affect game delivery timelines, business performance, and regulatory readiness. If you enjoy working close to complex domain logic, reviewing technical implementations, understanding how games work under the hood, and owning systems where precision matters - this role will feel like home. Key Responsibilities * Own, maintain, and evolve Playson’s Game Engine domain * Work on internal frameworks and libraries used by mathematicians to implement game logic and mathematical packages. * Review and validate code written by mathematicians, ensuring quality, correctness, maintainability, and proper usage of internal frameworks. * Contribute to the development and support of game engines used to run mathematical logic within our platform. * Support integrations with external game studios by helping build wrappers and bridges between third-party game implementations and Playson’s platform. * Work with data structures and protocols that connect game logic with frontend and backend systems. * Contribute to RTP monitoring processes, including validation of production transaction data against simulation data and expected mathematical behaviour. * Support and evolve tools used for mathematical review, simulations, data files, monitoring, and alerting. * Implement and maintain round details logic required for regulated markets, ensuring that detailed game round information can be correctly provided to partners and regulators. * Collaborate closely with mathematicians, backend engineers, platform teams, compliance stakeholders, and product representatives. * Participate in code reviews and technical discussions to ensure a high engineering standard across the Game Engine domain. * Investigate issues related to game logic, mathematical validation, monitoring, and engine behaviour. * Participate in minimal on-call responsibilities related to the systems owned by the team, mainly around monitoring, alerts, and domain-specific incidents. * Take ownership of a highly specialised area where quality, accuracy, and attention to detail are essential. Requirements * Strong software engineering experience, ideally in backend, game engine, gaming, gambling, betting, or simulation-heavy environments. * Solid experience with Node.js/TypeScript, or strong expertise in another OOP language such as C++, Java, C#, Go, or Python. * Good understanding of software architecture, code quality, testing, debugging, and maintainability. * Experience reviewing complex code and providing clear technical feedback. * Ability to understand domain-specific logic and work with technical systems where business rules, mathematics, and engineering are closely connected. * Strong problem-solving skills and ability to work with complex, non-standard technical challenges. * Experience working with production systems where reliability, accuracy, and correctness are critical. * Understanding of backend systems, APIs, data flows, and service-to-service communication. * Ability to collaborate closely with non-engineering technical experts, especially mathematicians or domain specialists. * Strong ownership mindset and willingness to become a key expert in a narrow but highly important technical domain. * Product-oriented thinking, with an understanding that games are the core product and engineering decisions directly affect delivery, quality, and compliance. * English communication skills sufficient for working in an international environment. Nice to Have * Experience in iGaming, gambling, betting, game development, or casino games. * Experience working with game engines, mathematical engines, simulation tools, or game logic frameworks. * Background in C++ or experience working with legacy C++ systems. * Experience with mathematical models, probability-based systems, simulations, random generators, or RTP-related logic. * Understanding of regulated markets and compliance requirements in iGaming. * Experience with ClickHouse or other analytical/columnar databases. * Experience with monitoring, alerting, and production diagnostics. * Experience with AI-assisted code review or automated validation tools. * Knowledge of microservices architecture and distributed systems. * Familiarity with Kafka, gRPC, Kubernetes, or AWS. * Experience integrating third-party games, external studio products, or wrapper-based solutions. * Ukrainian language skills would be a plus. What We Offer * Competitive Salary * Quarterly Bonuses * Unlimited Paid Time Off * Unlimited Paid Sick Leave * Remote & Flexible Working * Private Medical Insurance * Financial Support for Life Events * Professional Development Budget * International Exposure * Regular Company Events *Benefits may vary depending on location and contractual agreement Recruitment Process * HR interview * Technical interview (with Live coding) * Final interview Join us today!
Your teams own the algorithmic heartbeat of major esports verticals, spanning iconic MOBA titles (Dota 2, LoL) and FPS giants (CS2, Valorant). They manage the entire ML lifecycle—from raw data ingestion and feature engineering to model architecture, rigorous validation, and high-throughput production deployment. While you won't be writing the code yourself, you will serve as the technical anchor who deeply understands this end-to-end flow, ensuring our systems are robust, scalable, and cutting-edge. A critical pillar of your role is high-level strategic alignment. You will act as the key technical bridge between your teams and product managers, infrastructure champions, and domain game specialists, transforming complex technical capabilities into sharp business outcomes and seamlessly integrating domain insights into our modeling strategy. Your Responsibilities Leadership Lead two teams of 4-6 ML engineers and mathematicians, each focused on a different esports vertical (MOBA, FPS). Define team staffing needs and drive hiring across both teams. Manage performance of direct reports. Foster a culture of ownership, accountability, and collaboration. Set the standard for how the teams work with AI tools - lead by example, encourage experimentation, measure and evaluate AI tools and set up impact on delivery. Technical Strategy & Roadmap Partner with senior team members to shape the roadmap; together with a PM ensure alignment with business goals. Review and challenge key high-level technical decisions - model development and validation, ML architecture etc. Work on unblocking the teams - support ML Ops and infrastructure best practices. Evaluate and introduce AI tooling that accelerates model development, validation, and deployment. Delivery & Execution Own the agile delivery process; find a good trade-off between delivery and R&D. Help others break down complex ideas into actionable tasks and research initiatives; drive execution and delivery. Leverage AI tools to accelerate prototyping and iteration cycles. Manage dependencies across teams and represent the teams externally when resolving cross-team initiatives. Skills You Need Individual Contributor Background (4+ years) 4+ years as a hands-on ML engineer. Understanding of model development and validation challenges, pitfalls, and best practices. Practical experience with MLOps. Concrete experience using AI tools to accelerate ML workflows - code generation, prototyping, validation. Manager (3+ years) 3+ years leading a team of 5–10 people focused on ML or mathematical models. Strong communication and collaboration skills - creating a supportive, productive environment. Ability to provide constructive feedback, support growth, and set clear goals. Strong organizational skills - tracking progress across two teams, identifying blockers, ensuring delivery with clear stakeholder insights. Bonus: Industry Experience Experience in betting, quantitative finance, trading, or sports analytics is a significant advantage. Haven't we caught you yet? Help us maintain our position as the No. 1 esports analytics company. Imagine a culture that embraces change and quickly adapts to global opportunities. Experience immense potential for personal growth while contributing to an innovative team. Work remotely or in a hybrid style – whatever suits you best. Enjoy our brand new Norse-myth-inspired offices in Prague. Improve your English with company-sponsored language courses. Participate in quarterly team-building activities to bond with your team. Benefit from a sponsored Multisport card.