syrym94
Senior Full Stack Backend Engineer
Senior Backend Engineer with 10+ years shipping high-performance Go & Node.js microservices. Proven track record of cutting latency 60–90 %, leading monolith-to-microservices migrations, and building observability that eliminates 3 a.m. pages. Currently strengthening core infrastructure at a fintech-scale platform. Remote worldwide.
Experience: 11 years
Yearly salary: $70,000
Hourly rate: $35
Nationality: 🇰🇿 Kazakhstan
Residency: 🇰🇿 Kazakhstan
Experience
Software Engineer
Sumatosoft 2022 - 2024
Reduced REST & WebSocket API latency 85 % (800 ms → 120 ms) for high-volume trading clients. Architected microservices platform handling 500k+ daily active traders. Delivered React + TypeScript trading dashboards with sub-second updates.
Golang Developer
Technodom LLP 2020 - 2021
Built high-load e-commerce backend in Go sustaining 50,000+ RPS during peak sales. Implemented Redis-backed rate-limiting and promotion engines with zero over-redemption.
Software Engineer
VEON Ltd (Beeline Kazakhstan) 2019 - 2020
Delivered full-stack internal tools for 15,000+ concurrent users with <100 ms P95 latency.
Software Engineer – Crypto Arbitrage Platform
DARWIN Trading Solutions 2018 - 2019
Engineered real-time cross-exchange & triangular arbitrage system connected to 30–40 crypto exchanges (Binance, Bybit, OKX, KuCoin, Huobi, Gate.io, etc.). Built ultra-low-latency WebSocket aggregators in Go → detection-to-execution under 180 ms. Designed profitable triangular arbitrage strategies across 500+ trading pairs. Optimized market-data pipeline to ingest 1.5M+ price updates/sec with zero drops. Reduced execution slippage 70 % through smart routing and co-location improvements.
Node.js / JavaScript Developer
Simple Solutions LLP 2015 - 2018
Developed and scaled multiple real-time web platforms with Node.js + Socket.io. Integrated Stripe, LiqPay and early crypto payment gateways with 100 % reconciliation rate.
Skills
backend
crypto
golang
mongo
postgres
full-stack
english
kazakh
russian