Aleksandr Gladkikh

Backend Developer

Architected a multi-agent system using LangChain for real-time market sentiment analysis and signal generation, reducing decision-making latency by ~20%. Built an event-driven order execution service for trading bots on Go/gRPC, handling 10k+ orders/sec with idempotency and exactly-once event publishing via the outbox pattern. Cut WebSocket message-processing latency by ~30% (p99) via pprof-guided work: jsoniter parsing, sync.Pool buffers, and batched DB writes via group commits.

• Reduced decision-making latency by ~20%
• Handled 10k+ orders/sec with idempotency
• Cut WebSocket message-processing latency by ~30% (p99)

Backend Developer

Led the transition from a monolith to Go-based microservices, improving scalability and team velocity. Integrated an internal LLM tool for automated incident classification, cutting manual triage time by ~25%. Scaled a video-processing service for upload spikes, reducing DB load by ~40% through custom caching and SQL tuning.

• Cut manual triage time by ~25%
• Reduced DB load by ~40%

Backend Engineer (Go), Contract

Built real-time market-data ingestion using WebSockets and optimized order-book processing for crypto exchanges (Binance, OKX). Developed a backtesting engine for trading strategies over multi-terabyte time-series datasets with statistical modeling. Engineered core backend modules for investment platforms: portfolio analytics and real-time risk calculations.