Middle Java/Kotlin Developer (Cloud Development Department)

• →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.

• Design and implement core backend services and data pipelines
• Write clean, readable, and maintainable code

• Participate in designing and improving system architecture
• Document architectural decisions and operational processes to support reliable deployment and service operations

• 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

• Set up and maintain alerting, dashboards, and runbooks for production services
• Debug production issues, analyze complex cases, and conduct investigations

• 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

• 3+ years of professional backend development in Java (enterprise environment)
• Strong understanding and practical experience with Java Concurrency

• Understanding of SOA, microservices, and event-driven architecture
• Practical experience with AWS and cloud development principles
• Experience building scalable, high-availability systems

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

• Strong knowledge of unit testing
• Understanding of automated testing practices