Senior ‐Stack Engineer

PAJ is a leading manufacturer, distributor, and consultant in GPS tracking technology, based in Windeck-Hurst. We offer the perfect GPS tracker for almost any application. We are a dynamic, growing company with many creative and passionate minds, both in Germany and abroad. We thrive on open communication and exceptional personalities. If you enjoy variety and challenges, you ll feel right at home with us!

• Familial atmosphere: A warm, supportive team.
• Active participation: Your voice matters – actively shape our solutions.
• Varied tasks: Exciting everyday work with growing opportunities
• Stay healthy & happy: A sports subscription is included, and you ll also get a day off on your birthday.
• Support for further education: Outstanding performance is rewarded.
• Flexible working: 100% remote work – or work from anywhere in the world!

• Backend Development (Java / Quarkus): Design, implement, and optimize backend services using Java and Quarkus (including Netty and data protocols where applicable), with a focus on performance, reliability, and clean architecture.
• Database Administration: Deploy, monitor, and maintain scalable database clusters, including MySQL
  , MongoDB
  , Cassandra/ScyllaDB
  , and Redis
  , ensuring high availability and performance.
• Streamline Data Flow: Manage and enhance data streaming and messaging systems with Kafka and RabbitMQ for reliable and efficient communication.
• Infrastructure Oversight: Administer Linux servers, ensuring their security, reliability, and smooth operation, while implementing and maintaining cutting-edge open-source solutions.

• Database Specialist: Strong experience with MySQL and familiarity with MongoDB
  , Cassandra/ScyllaDB
  , and Redis
  , ideally including deploying and maintaining database clusters.
• Infrastructure Savvy: Hands-on Linux administration skills and the ability to implement open-source tools effectively in a Dev Ops environment.
• Problem Solver: Adept at identifying and resolving system anomalies, with a proactive approach to ensuring system stability and reliability.
• Team Player: You have a self-sufficient way of working and are always ready to support your team with your expertise.

Type of contract: Permanent Employment Contract

Type of position: Full-time

Language: Proficient English (Required), German (nice to have)

Work location: Remote or Windeck, Hurst 51570 Germany