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MiddleSenior Java Developer (Video Integration Team)
Job Location:
Monthly Salary:
Posted:
30 July 2026 (30+ days ago)
Posted:
Application Deadline:
27 October 2026
Application Deadline:
Vacancies:
1 Vacancy
Vacancies:
Job Summary
Ajax Systems an international tech company and the largest manufacturer of security systems in Europe.
We are looking for a new team member to join our System devisions 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.
The division works with Java Kotlin Swift C C and Python. It includes embedded cloud mobile and desktop engineers who ensure the stable operation of Ajax as a single digital platform.
We are looking for a new team member to join our System devisions 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.
The division works with Java Kotlin Swift C C and Python. It includes embedded cloud mobile and desktop engineers who ensure the stable operation of Ajax as a single digital platform.
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
- Actively participate in developing and improving architecture
- Document architectural decisions and operational knowledge for successful deployment and service operations
- Ensure appropriate test coverage with unit and integration testing
- Focus on performance and cost efficiency for areas of responsibility
- Follow best practices in software design and development and promote them within the team
- Ensure reliable alerting dashboards and runbooks for production services
- Debug production issues analyze complex cases and conduct investigations
- Work smoothly in a technical culture with testing CD and DevOps
- Collaborate within the team and with other engineering teams to develop new features and products according to business needs
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
- 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
Required:
- Any NoSQL database
- Any message broker
- Enterprise-grade stack (messaging brokers in-memory storages NoSQL key-value databases)
- Docker and Kubernetes (containerized applications)
- Git Gradle Jenkins
Nice to Have:
- Redis Netty Akka gRPC Project Reactor NATS Kafka. MongoDB
- Strong knowledge of unit testing and automated test paradigms
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 Ajaxs internal beta-testing program for security systems
- Discounts from partner companies
- Discounts on Ajax products
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 330000 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.
Required Experience:
Senior IC
About Company
Ajax alarm system includes everything you need to protect your property | Professional home security system that combines CCTV, fire alarm and automation
