Ajax Systems is an international technological company and Europe’s largest security system manufacturer. In addition, the company offers solutions for video surveillance, smart homes, fire detection, and flood prevention. The product portfolio includes 280 wireless and wired devices for security and automation. Today, Ajax protects over 4.5 million users in 187 countries worldwide. 

We are looking for a smart, experienced, and technically proficient Senior Java Developer to join our team in Kyiv office.

Required Experience
- Java: 5+ years of professional backend development in enterprise environment
- Kotlin: Knowledge and practical work experience
- Java Concurrency: Strong understanding and practical application experience

Architecture & Design
- Understanding of SOA, microservice, and event-driven architecture
- Cloud development principles with practical AWS experience
- Ability to scale and ensure high availability of loaded systems

Technologies & Tools
Required:
- Kafka, MongoDB, NATS
- Enterprise-grade stack (messaging brokers, in-memory storages, NoSQL, key-value databases)
- Docker and Kubernetes (containerized applications)
- Git, Gradle, Jenkins

Nice to Have:
- Redis, Netty, Akka, gRPC, Project Reactor

We offer:
- The opportunity to share and implement your own ideas that could impact products and production
- Work with a motivated team and an environment with a zero-bullshit culture
- Competitive salary
- Medical insurance
- Corporate English classes