almazshagiev

 Built and operated payment-processing services handling 10,000+ RPS across multiple Yandex products, implementing provider routing, webhook processing, and failover logic.  Designed and implemented Token payment flows for a high-load payment gateway, increasing conversion and contributing to ~30% revenue growth of the associated product.  Engineered idempotency and exactly-once-style processing guarantees across distributed payment services, cutting duplicate/failed transactions by 80% and improving observability via tracing/alerting

 Optimized ARM-based convolution algorithms with SIMD/vector instructions, achieving 30% performance gains.  Developed parallel tensor-convolution algorithms for Ascend NPU in C++, delivering multi-fold speedups and reduced memory consumption.  Built benchmarking and performance-analysis tooling in Python to support optimization and validation efforts