Java Developer (Fibra)

About the Position

Java Developer (Fibra)

We are looking for a new team member to join our System Division as a Senior Java Developer. The System Division is responsible for building and developing the Ajax software ecosystem. The team develops and maintains OS Malevich and the Video Management System, builds scalable cloud infrastructure, and creates client applications for multiple platforms, ensuring that all system components work together as a unified ecosystem.

Responsibilities

• Develop and maintain backend services using Java and Kotlin.
• Ensure the stable operation of Ajax as a single digital platform.
• Work with Java, Kotlin, Swift, C, C++, and Python.
• Collaborate with embedded, cloud, mobile, and desktop engineers.

Requirements

• Java: 3+ 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: MongoDB, NATS, Enterprise-grade stack (messaging brokers, in-memory storages, NoSQL, key-value databases), Docker, Kubernetes, Git, Gradle, Jenkins.
  • Nice to Have: Redis, Netty, Akka, gRPC, Project Reactor.

We Offer

• The opportunity to suggest and implement your own ideas that directly influence the product and its mass production.
• A place in a fast-growing company with a motivated and professional team.
• Competitive salary.
• Medical insurance.
• English classes.
• The opportunity to participate in Ajax’s internal beta-testing program for security systems.
• Discounts from partner companies.
• Discounts on Ajax products.

About the Company

Ajax Systems is a Ukrainian success story that has grown into a global product. Ajax devices are trusted by more than 4.5 million end users and 330,000 PRO users in over 180 countries. The company provides comprehensive solutions to protect residential and commercial properties of all sizes. Today, Ajax portfolio includes 280 devices for intrusion protection, video surveillance, fire safety, and comfort and automation.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

Location: Kyiv, Ukraine

Employment Type: Full-time

Work Location Type: On-site