Backend Engineer (Payments & Fraud)

2 Weeks ago • 6 Years + • Backend Development

Job Summary

Job Description

Papaya Gaming seeks an experienced Backend Engineer for its Payments & Fraud team. Responsibilities include developing and maintaining a high-scale backend platform for millions of users, designing end-to-end solutions, writing high-quality code, experimenting with new technologies, and mentoring team members. The role involves working with AWS, Kubernetes, Node.js, TypeScript, Redis, and MySQL to build scalable, resilient, and high-performance backend services for payments and fraud prevention, integrating with multiple banking systems and developing fraud detection mechanisms.
Must have:
  • 6+ years server-side development
  • Cloud architecture experience
  • Node.js or similar proficiency
  • Scalable backend systems expertise
  • High-quality code development
Perks:
  • Comfortable office in Warsaw
  • MacBook, external screen
  • Luxmed medical services
  • Monthly Uber Eats voucher
  • Multisport card
  • Monthly Happy Hours
  • Snacks
  • Hybrid work model

Job Details

Description

At Papaya Gaming, we believe in the power of play. Our mission is to create engaging, high-quality mobile gaming experiences that entertain millions of players worldwide. We specialize in skill-based games that combine fun, competition, and real rewards, fostering a strong sense of community and engagement.

A key part of our platform is tournaments, where players can compete, improve, and connect with others. By building thriving tournament communities, we create an immersive gaming experience that keeps players coming back for more. With a strong focus on innovation, technology, and user engagement, we continuously push the boundaries of what’s possible in mobile gaming.

The Core R&D group is a key part of Papaya Gaming’s Platform division, responsible for developing and maintaining core products that shape the player’s journey. From registration, account management, payments, and restrictions to tournaments and matchmaking, the team ensures a seamless and scalable gaming experience for millions of players worldwide.

We handle payments and fraud prevention across the platform. The team integrates with multiple banking systems, manages secure transactions, and develops fraud detection mechanisms. Supporting millions of players, Typhoon ensures smooth and safe financial operations within Papaya’s ecosystem.

We are looking for an experienced Backend Developer to join our Payments & Fraud team and help build high-scale, mission-critical backend solutions. You will work in a fast-paced, highly technical environment, designing and developing scalable, resilient, and high-performance backend services that power the Payments and Fraud ecosystem.

Responsibilities

  • Develop and maintain a high-scale backend platform serving millions of users.
  • Design and implement end-to-end solutions that reduce time-to-market and improve system efficiency.
  • Write high-quality, performant, and maintainable code following industry best practices.
  • Experiment with new technologies, tools, and third-party frameworks to drive innovation.
  • Mentor new team members and contribute to a culture of engineering excellence.


Tech Stack

  • AWS, Kubernetes, Node.js, TypeScript, Redis, MySQL

Requirements

  • 6+ years of experience in server-side development and architecture.
  • Hands-on experience in cloud-based architectures and scalable backend systems.
  • Proficiency in Node.js or another major backend language.
  • Passion for learning and adopting new technologies.
  • A can-do approach, problem-solving mindset, and ability to work in a fast-paced environment.

What We Offer

  • Comfortable office in central Warsaw with all the tools you need (MacBook, external screen, etc.).
  • Luxmed medical services.
  • Monthly Uber Eats voucher.
  • Multisport card to keep you active.
  • Monthly Happy Hours to unwind with the team.
  • Snacks available all day long.
  • Hybrid work model for flexibility and work-life balance.


Join Papaya Gaming and help shape the future of secure gaming transactions!

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About The Company

Since 2019, Papaya has been committed to shaping the future of gaming through an innovative and forward-thinking approach to game development. We believe that gaming should be about more than just luck, which is why our games are designed to reward skill, strategy, and perseverance. 


Ranked by Dun’s 100 as one of the top 50 hi-tech companies in Israel to work for.

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