Aibek Yermekbayev

Senior Backend Engineer (Java / Go)

Built backend services for a fintech payment platform handling 3,000+ RPS under high production load. Designed Kafka-based event flows for 1M+ daily events across distributed services. Improved service resilience with retries, circuit breakers, and timeout controls. Reduced P99 latency by 40% (250ms to 150ms) through JVM and query optimization.

• Built backend services for a fintech payment platform handling 3,000+ RPS under high production load
• Designed Kafka-based event flows for 1M+ daily events across distributed services
• Reduced P99 latency by 40% (250ms to 150ms) through JVM and query optimization

Backend Engineer (Java)

Built 15+ integrations between core banking systems and external financial gateways. Supported message pipelines processing 50k+ messages/hour for banking workflows. Reduced Mean Time to Recovery (MTTR) by 40% by resolving critical production issues. Applied integration patterns to reduce end-to-end latency by 25%.

• Built 15+ integrations between core banking systems and external financial gateways
• Supported message pipelines processing 50k+ messages/hour for banking workflows
• Reduced Mean Time to Recovery (MTTR) by 40% by resolving critical production issues
• Applied integration patterns to reduce end-to-end latency by 25%

Backend Engineer (Java / Kotlin)

Developed Smart Bridge integrations for National IT serving 20+ government-scale consumers. Contributed to decomposing a legacy monolith into microservices, reducing redundancy by 40%. Improved CI/CD pipelines, shortening deployments from bi-weekly to on-demand. Developed high-load REST/SOAP APIs supporting 5,000+ concurrent requests.

• Developed Smart Bridge integrations for National IT serving 20+ government-scale consumers
• Contributed to decomposing a legacy monolith into microservices, reducing redundancy by 40%
• Improved CI/CD pipelines, shortening deployments from bi-weekly to on-demand
• Developed high-load REST/SOAP APIs supporting 5,000+ concurrent requests

Junior Backend Engineer (Java)

Developed backend features for e-commerce credit-processing and notification services. Improved admin module efficiency by 30%. Increased unit test coverage by 25% and fixed 30+ production issues. Participated in code reviews and API documentation using Swagger/OpenAPI.

• Improved admin module efficiency by 30%
• Increased unit test coverage by 25% and fixed 30+ production issues
• Participated in code reviews and API documentation using Swagger/OpenAPI