Backend Engineer (Player Journey)

2 Minutes ago • 6 Years + • Backend Development

Job Summary

Job Description

At Papaya, we create skill-based mobile games enjoyed by millions. We're seeking a Backend Developer to shape the crucial 7-day experience for new players. You'll design and deliver scalable backend systems, own architectural decisions, and write production-ready code for millions of players. We are a fast-growing, profitable company with a startup spirit, offering a hybrid work model in Warsaw.
Must have:
  • Design and implement backend features that support onboarding and early user engagement.
  • Own the architecture and evolution of scalable, performant backend systems.
  • Collaborate closely with Unity developers, product managers, and analysts to deliver full-stack experiences.
  • Ensure system robustness, reliability, and maintainability in a high-traffic environment.
  • Provide technical guidance to drive backend excellence across the team.
  • Write high-quality and performant code following industry best practices and standards.
  • Experiment with new technologies, tools, and 3rd party frameworks.
  • Mentor new members of the team.
  • 6+ years of proven record in server applications design and development.
  • Hands-on experience with cloud architecture.
  • Proficient in a major development language.
  • Strong understanding of system architecture, scalability, and performance optimization.
  • Experience working in full-stack teams and integrating with game clients or frontend systems.
  • Ability to write clean, maintainable, and well-documented code.
Perks:
  • Join a profitable company with the heart of a startup.
  • Enjoy a hybrid work model with flexibility and a growing Warsaw office.
  • Receive competitive compensation tailored to the Polish market- B2B Service agreement.
  • Comfortable office in central Warsaw equipped with all the necessary tools.
  • Luxmed Medical services.
  • Monthly 'Uber Eats' voucher.
  • Multisport card.
  • Monthly Happy Hours.
  • Snacks and Breakfasts.

Job Details

Description

At Papaya, we believe in the power of play. We create skill-based mobile games that combine fun, competition, and real rewards — enjoyed by millions of players worldwide.

We're building a platform where players join tournaments, connect with others, and keep coming back. With a strong focus on innovation, scalability, and user experience, we aim to redefine what mobile gaming can offer.

We’re a fast-growing, profitable company with the spirit of a startup — no corporate bureaucracy, no endless layers of approvals. Everyone on the team makes a real impact on the product, and your voice truly matters.

We’re looking for a Backend Developer to join the team shaping the first 7-day experience of new players — a crucial journey in Papaya’s product.

You’ll play a key role in designing and delivering backend systems that power seamless, scalable experiences. As a technical leader within the team, you’ll own core architectural decisions, guide backend direction, and write production-ready code that supports millions of players.We offer a hybrid work model with flexibility at our growing Warsaw office.

Responsibilities

  • Design and implement backend features that support onboarding and early user engagement.
  • Own the architecture and evolution of scalable, performant backend systems.
  • Collaborate closely with Unity developers, product managers, and analysts to deliver full-stack experiences.
  • Ensure system robustness, reliability, and maintainability in a high-traffic environment.
  • Provide technical guidance to drive backend excellence across the team.
  • Write high-quality and performant code following industry best practices and standards.
  • Experiment with new technologies, tools, and 3rd party frameworks. Utilize them to deliver state-of-the-art tech.
  • Mentor new members of the team.
  • Tech stack: AWS, Kubernetes, NodeJs, Typescript, Redis, MySQL
  • Supporting recruitment process.

Requirements

  • 6+ years of proven record in server applications design and development.
  • Hands-on experience with cloud architecture.
  • Proficient in a major development language.
  • Passion for learning new technologies and applying them to make a difference.
  • Strong understanding of system architecture, scalability, and performance optimization.
  • Experience working in full-stack teams and integrating with game clients or frontend systems.
  • Ability to write clean, maintainable, and well-documented code.

What We Offer:

  • Join a profitable company with the heart of a startup – stable, growing, and full of energy.
  • Enjoy a hybrid work model with flexibility and a growing Warsaw office.
  • Receive competitive compensation tailored to the Polish market- B2B Service agreement
  • Comfortable office in central Warsaw equipped with all the necessary tools to conquer the universe
  • Luxmed Medical services
  • Monthly 'Uber Eats' voucher
  • Multisport card
  • Monthly Happy Hours
  • Snacks and Breakfasts

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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. Our primary focus is transforming single-player games into rewarding, multi-player skill-based tournaments. Whether it's our users or employees, we challenge everyone to take risks, try new things, and push themselves to new heights of achievement.

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