Senior Java Developer (Smart Home)

Location: Lviv, Ukraine; onsite

Company

hirify.global is an international Ukrainian product company that develops security systems and a software ecosystem for residential and commercial properties, including intrusion protection, video surveillance, fire safety, and automation.

What you will do

• Design and develop core backend services and data pipelines for the product line.
• Build maintainable, production-ready Java code and contribute to backend architecture and technical decisions.
• Document solutions for reliable deployment and operations, with a focus on scalability, performance, and cost efficiency.
• Ensure unit and integration test coverage and follow continuous delivery and DevOps practices.
• Maintain production reliability through monitoring, alerting, dashboards, and runbooks.
• Investigate complex production issues and collaborate with product and engineering teams on new and existing services.

Requirements

• 5+ years of commercial backend development experience with Java in an enterprise environment.
• Strong understanding of Java concurrency and hands-on experience with concurrent programming in production systems.
• Solid understanding of SOA, microservices, and event-driven architecture.
• Practical experience with cloud computing platforms and Kubernetes.
• Experience building and supporting high-load, scalable, and highly available systems.
• Hands-on experience with messaging brokers and modern backend infrastructure, including NoSQL, key-value databases, and in-memory storage.
• Experience with Git, Gradle, or other CI/CD tools.
• Strong knowledge of unit testing and automated testing approaches.

Nice to have

• Experience with Redis, Netty, Akka, NATS, AWS, Kafka, MongoDB, or gRPC.
• Practical experience with Kotlin.
• Desire to grow into a team leadership role.

Culture & Benefits

• Opportunity to propose and implement ideas that directly influence the product and its mass production.
• Work in a fast-growing company with a motivated engineering team.
• Medical insurance and English classes.
• Access to an internal beta-testing program for security systems.
• Discounts from partner companies and on Ajax products.