Senior C#/.NET Engineer (Trading System) - Part-time - Overlap PST (3)

Project Overview

The client has a partially built automated futures trading system in C#/.NET on Quantower.
Core components—wavelets, indicators, AI framework, rule-based strategies, execution engine, and risk module—already exist, but the system is not yet operational. You'll be picking up from a previous developer to finish, integrate, stabilize, and deliver a fully working trading bot.

Key Responsibilities

• Implement AI model persistence (save/load trained models)
• Build the AI training pipeline (historical data → preprocess → train → validate → export), including Triple Barrier Method labeling for training data
• Integrate AI + wavelets + rule-based strategies into a unified strategy, including a confluence-based decision framework (weighted vote across model signal, technical indicators, and support/resistance, with a minimum two-of-three agreement gate before trade execution)
• Verify wavelet IDWT (inverse discrete wavelet transform) round-trip integrity — reconstructed signal vs. original input
• Make the system run end-to-end inside Quantower
• Add backtesting and performance verification
• Implement full .NET logging (signals, decisions, orders, errors)
• Improve stability: multithreading, race conditions, error handling
• Validate signal quality and ensure logical, consistent outputs
• Document the system and show the client how to operate it

Required Experience

• Senior C#/.NET developer, 5+ years, production systems
• Experience building automated/algorithmic trading systems on retail or institutional platforms (Quantower preferred; NinjaTrader, cTrader, MultiCharts .NET, or direct broker APIs acceptable)
• Personal trading experience (futures preferred) — must be stated on profile, will be verified in interview
• Proven, hands-on experience building custom technical indicators and automated trading systems that have run in live or production trading environments. This is a firm requirement.
• Advanced expertise in wavelet analysis (e.g., discrete/continuous wavelet transforms, multi-resolution decomposition, denoising) applied to financial time series.
• Strong professional proficiency in C#, including performance-sensitive, real-time data processing.
• Solid understanding of futures market structure (e.g., contract specifications, rollovers, session hours, tick and liquidity dynamics), with the ability to turn market insight into systematic trading logic.
• Experience picking up and extending someone else's partially-built codebase
• Clear communication and reliable, accountable delivery (weekly syncs, consistent versioning, accurate change logs)

Additional Notes

• This is completion work, not a new build. The existing architecture should remain intact.
• The hired developer is expected to explain workflows and guide a non-technical founder.
• Available for a paid trial engagement before long-term commitment