Open to opportunities

Aleks User

@aleksuser1

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I build low-latency Go systems for trading, market data, and AI-powered operations.

Georgia

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What I'm looking for

I'm looking to build high-performance distributed systems in FinTech or data-intensive products, especially low-latency trading infrastructure, real-time pipelines, and production AI/LLM agents.

At BitsGap, I built Go/gRPC trading infrastructure, including an event-driven execution service handling 10k+ orders per second and a LangChain multi-agent system for real-time market sentiment and signal generation.

I reduced WebSocket processing p99 latency by about 30% through pprof-guided optimization, jsoniter parsing, sync.Pool buffers, and batched database writes. I also helped reduce AI-agent decision-making latency by about 20%.

At Wildberries, I led a monolith-to-Go-microservices transition and integrated an internal LLM tool that cut manual incident triage time by about 25%. I also reduced database load by about 40% while scaling a video-processing service for upload spikes.

Earlier, I built crypto market-data ingestion, order-book processing, backtesting engines over multi-terabyte time-series data, portfolio analytics, and real-time risk calculations. My biostatistics background supports the statistical modeling and data-heavy work behind these systems.

Experience

Work history, roles, and key accomplishments

Backend Developer

BitsGap

Mar 2025 - Jun 2026 (1 year 3 months)

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.