Tech Stack

JavaGradleSpigotPaperBukkitVelocityKotlinJenkinsKubernetesNext.jsGLSLPostgreSQLRedisRabbitMQ

About the role

Overview

Join our team as a confirmed Java developer responsible for designing and implementing complex game mechanics for our Minecraft servers. You'll work closely with Game Designers and the internal technical team, optimizing server performance and resolving live environment incidents.

Key Responsibilities

Implement progression systems, economy, PvP/PvE, crafting, trades, and skills
Design and establish code architecture adapted to project features and constraints
Collaborate with Game Designers to translate complex gameplay mechanics into robust, performant implementations
Optimize server performance and manage live production issues

Required Profile

Minimum 3 years of Java development experience
Strong experience with custom Minecraft servers preferred, OR experience with real-time backend architectures with high performance constraints (online games, distributed systems, concurrent applications)

Key Competencies

Languages & Environment

Advanced mastery of Java and OOP principles
Experience with Gradle
Knowledge of Minecraft server APIs (Spigot, Paper, Bukkit, Velocity)

Nice-to-Have

Kotlin
DevOps / CI-CD (Jenkins, pipelines)
Kubernetes / containerization
Web development (e.g., Next.js)
GLSL shader development

Architecture & Performance

Deep understanding of Minecraft's single-thread model and its constraints
Concurrency management (threads, async tasks, locks)
CPU/memory optimization
Clean, maintainable object-oriented design

Data & Persistence

SQL database experience
Understanding of ACID principles and data consistency
Knowledge of distributed architecture and concurrency challenges
Caching concepts and Redis experience
RabbitMQ experience

What We're Looking For

A developer who understands that technology serves gameplay
Ability to transform complex gameplay mechanics into clean, performant implementations
Autonomous, structured profile capable of challenging decisions when necessary
Product sensitivity: understanding of retention, scalability, and long-term stability concerns

About Rivrs

Rivrs is a game development company that creates custom Minecraft servers with complex gameplay mechanics. They focus on building engaging multiplayer experiences with sophisticated systems like progression, economy, and PvP/PvE gameplay.