Slot Backend Developer | Node.js

What are you working on?

• The name of the project(s): Sticky Slots

For which tasks (responsibilities)?

• Strong Node.js / TypeScript

• Experience with REST APIs and WebSockets

• Experience with Git (branching, PRs, code review)

• Basic CI/CD understanding (GitLab CI, GitHub Actions, etc.)

What kind of professional are we looking for?

• Hands-on work with RGS platforms (Tequity or similar: EveryMatrix, SoftSwiss, etc.)

• Ability to:

  • Integrate game logic into an existing RGS framework

  • Define and handle game rounds, spins, features, and bonus states

  • Work with RGS APIs for balance, sessions, players, and operators

• Understanding of:

  • How RGS communicates with client/front-end and casino platforms

  • Logging, game history, and audit requirements on an RGS
    
    3. Math → Code Translation

    • Comfortable reading math specifications from a mathematician:

      • Paytables, symbol distributions, reel strips

      • Probability, hit rates, volatility, RTP

    • Ability to convert this into:

      • Deterministic game flow (what happens each spin/feature)

      • Code that respects the RTP and volatility targets

    • Understanding of RNG / PRNG concepts (even if RNG itself is provided)

    • Experience validating math with:

      • Test simulations (many spins)

      • Comparing theoretical vs. actual RTP

    4. Data & Architecture

    • Experience with databases (SQL or NoSQL) for storing sessions, history, logs

    • Knowledge of caching and performance optimization

    • Basic understanding of scalable services (horizontal scaling, stateless design where needed)

    • Experience with error handling, logging, monitoring (e.g. Winston, Elastic, Sentry, etc.)

    5. Quality & Testing

    • Writing unit tests and integration tests for game logic

    • Ability to create or use tools to:

      • Run mass simulations (millions of spins)

      • Analyze distributions, RTP, and edge cases

    • Working closely with QA engineers and math team to verify correctness

What is important for us in a person?

• Can communicate clearly with:

  • Mathematician (to clarify formulas)

  • Game designer (to understand features/UX)

• Comfortable challenging unclear requirements and proposing technical solutions

• Responsible, detail-oriented, careful with small math changes

• English: upper-intermediate or higher for specs and calls

Why do we enjoy working here?

Intangible Benefits:

• Opportunity to work on unique and technically interesting game products.

• Direct impact on the final product — your backend logic will shape the player experience.

• Flat team structure and clear communication.

• Freedom to propose and implement improvements.

• Transparent decision-making process.

• A culture that values quality, speed, and autonomy.

What are the conditions and bonuses?

• Fully remote or hybrid work setup

• Flexible working hours.

• Paid vacation and sick leave.

• Relocation support if needed.

• Competitive salary and performance bonuses.

• Health insurance / gym compensation.