Yurii D.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Mar 30, 2026.

I’m a software engineer with 9+ years of hands-on experience building and deploying algorithmic trading and fintech systems. I’m Top Rated Plus on Upwork with 100% Job Success and long-term clients both on and off the platform. I specialize in quantitative development and algorithmic trading systems — turning trading ideas into reliable, production-ready software. I focus on building stable, scalable, and maintainable automated trading solutions. In my work, I follow best practices in trading system architecture and software engineering. I apply OOP, SOLID principles, and clean design patterns to ensure the systems I build are robust, efficient, and ready for real-market conditions. What I Build & Deliver - Intelligent backtesting & optimization: automated hyperparameter tuning, regime detection, and adaptive risk/portfolio logic - Low-Latency & High-Frequency Trading (HFT) Systems - Arbitrage Trading Systems (Cross-Exchange, Statistical, Latency Arbitrage) - Ninja Trader 8+ | NinjaScript | Strategies and Indicators - Pine Script TradingView Indicators and Strategies - C#/.NET, Python, MQL4/5, C++ | MetaTrader 4/5, crypto & stock-exchange APIs - Exchanges & Brokers: Interactive Brokers (IBKR), Betfair, Binance, BitMEX, Bybit, Coinbase International, Deribit, dYdX v3/v4, Hyperliquid, Kraken, OKX, Polymarket. - Data Providers: Polygon, Databento, Tardis, Yahoo Finance, and various public APIs. - Adaptive signal logic, hot-reloadable parameters, real-time risk controls - High-Performance Trading Engines - Proprietary, multi-threaded .NET framework battle-tested on 100 + assets - Fully unit-tested modules for execution, portfolio, and risk management - Back-Testing at Scale - Custom High-Perfomance .NET library—parallel tick-level simulation - Close-to-real-account modelling for portfolios with many open positions - QuantConnect Projects - Strategy research, optimization sweeps, and live deployments on Quant Connect/LEAN - Copy-Trading & Signal Distribution - Master/slave architectures (MT4/5, REST, TCP, AES-256) - Sub 20ms replication across multiple brokers and servers - Telegram Trading Bots - Real-time market data, trade execution, portfolio commands, dynamic menus - Custom EAs & Indicators - Trend, momentum, order-flow, market scanners, pattern recognition - Latency & Performance Tuning - Profiling, async/await, task parallelism, GC tuning, network optimization Why Hire Me - Proven Results: 22 + completed Upwork contracts, repeat clients, 100 % JSS - Scalable Architecture: Solutions that grow from prototype to production without rewrites - Security & Quality: Listed in Google’s Hall of Fame (2021) for a reCAPTCHA bypass bug bounty - Communication: Clear status updates, documented code, and collaborative workflow - Full Lifecycle Coverage: Idea → Back-test → Live trade → Maintenance