Middle Java/Kotlin Developer (Cloud Development Department)

System Department робить пристрої розумними, перетворюючи їх на повноцінний IoT. Вони створили й розвивають OS Malevich (модульна RTOS для різних апаратних платформ) і хмарний сервіс Ajax Cloud (Java 20 / Kotlin, AWS, Akka, NATS, Kafka, Mongo, MySQL). Для керування, обслуговування та моніторингу системи користувачами, інсталяторами й інженерами охоронних компаній розроблені додатки для iOS (Objective-C, Swift), Android (Java, Kotlin), Windows/macOS (Python / C++, QT, QML)

Responsibilities: Core Development Design and implement core backend services and data pipelines Write clean, readable, and maintainable code Develop services for the B2B product line Architecture & Documentation Participate in deg and improving system architecture Document architectural decisions and operational processes to support reliable deployment and service operations Quality Assurance Ensure proper test coverage (unit and integration tests) Optimize performance and cost efficiency within owned areas Follow and promote best practices in software design and development Operations & Monitoring Set up and maintain alerting, dashboards, and runbooks for production services Debug production issues, analyze complex cases, and conduct investigations Collaboration & Culture Work in an engineering culture focused on testing, Continuous Delivery, and DevOps Collaborate with team members and other engineering teams to deliver features aligned with business needs

Requirements: Required Experience 3+ years of professional backend development in Java (enterprise environment) Hands-on experience with Kotlin Strong understanding and practical experience with Java Concurrency Architecture & Design Understanding of SOA, microservices, and event-driven architecture Practical experience with AWS and cloud development principles Experience building scalable, high-availability systems Technologies & Tools Required: Experience with NoSQL databases Experience with message brokers Familiarity with enterprise-grade stack (messaging systems, in-memory storage, key-value databases) Docker and Kubernetes Git, Gradle, Jenkins Nice to Have: Redis, Netty, Akka gRPC, Project Reactor NATS, Kafka MongoDB Testing & Quality Strong knowledge of unit testing Understanding of automated testing practices

What You Will Get Opportunity to propose and implement your own ideas with a real impact on the product and production Work in a highly motivated team with a zero-bullshit culture Competitive salary Health insurance Corporate English classes Compensation for professional development and learning Opportunity to participate in beta testing of Ajax security systems — get early access to and test new devices before their official release