Rustem Ospanov
Hi, I’m Rustem Ospanov, a Java software engineer focusing on backend services for banking systems.
About
Hi, I’m Rustem Ospanov, a Java software engineer focusing on backend services for banking systems. I build scalable, reliable back-ends with Java, Spring Boot, Kafka, and cloud deployments, turning complex requirements into robust technical solutions.
I have practical experience with performance optimization, production support, and remote collaboration across time zones. I’m passionate about clean architectures, thorough testing, and continuous learning to help teams ship value faster.
- 4 years' experience
- Joined December 2025
Languages
- RussianFluent
- EnglishAdvanced
Industry experience
- Software & Internet
- Financial Services
- Professional Services
Work experience
Developed backend services using Java and Spring for banking systems. Integrated ML model outputs into risk management services. Supported asynchronous processing and production deployments. Investigated and resolved production issues.
Developed Java backend services using Spring Boot, Hibernate, PostgreSQL; implemented parcel terminal integration and order workflows; optimized task pool and background processing; worked with Kafka-based event-driven workflows; reduced processing time by ~50% via service and DB optimization; supported production systems (monitoring, incidents, on-call).
Wrote and modified scripts in Java, Python and C#; troubleshooting and resolving issues related to iiko software; writing technical documentation and system diagrams.
Education
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