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Ajax Systems
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Middle Java/Kotlin Developer (Cloud Development Department)
Ukraine
· Full-time
·
Not Applicable
Ajax Systems — міжнародна технологічна компанія і найбільший у Європі виробник охоронних систем. Продуктам Ajax довіряють уже понад 4,5 мільйони кінцевих користувачів і 330 тисяч PRO-користувачів у більш ніж 180 країнах. Компанія пропонує комплексні рішення для захисту житлових і комерційних об'єктів різного масштабу. Нині портфоліо Ajax налічує 280 пристроїв для захисту від вторгнення, відеоспостереження, пожежної безпеки та комфорту й автоматизації. Кожного року ми демонструємо кратне зростання як у чисельності команди, так і в кількості користувачів у всьому світі.
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
Required Experience
Required:
Долучайтеся, щоб зробити Made in Ukraine 🇺🇦 синонімом надійності.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. 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.
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
- 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
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
- 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
- Redis, Netty, Akka
- gRPC, Project Reactor
- NATS, Kafka
- MongoDB
- Strong knowledge of unit testing
- Understanding of automated testing practices
- 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
Долучайтеся, щоб зробити Made in Ukraine 🇺🇦 синонімом надійності.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. 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.
Key Skills
Ranked by relevance
ajax
java
kotlin
cloud
aws
c
artificial intelligence
continuous delivery
microservices
ai tools
storage
android
python
gradle
nosql
swift
mysql
kafka
rtos
ios
ai
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- Posted
- Apr 01, 2026
- Type
- Full-time
- Level
- Not Applicable
- Location
- Kyiv
- Company
- Ajax Systems
Industries
Appliances
Electrical
Electronics Manufacturing
Categories
Engineering
Information Technology
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