Jinzhao H.

I build AI automation workflows that deliver consistent results while keeping running costs under control. With 2+ years of hands-on experience in AI automation, I work across lead generation, accounting and quantitative trading. I’m a Top Rated freelancer, UCLA PhD and UK startup co-founder, building and using these systems in my own business as well as for clients. 📌 Results ✔️ $10M+ in assets managed by trading systems I helped build. ✔️ 100+ hours of manual work reduced to 1 hour through our in-house AI lead-generation workflow. ✔️ 10 hours of monthly bookkeeping work reduced to 15 minutes in LtdRecord’s internal tests. Product currently in development. ✔️ Sharpe 8+ achieved by a market-making strategy in forward testing. ✔️ Five-star client reviews for Polymarket market-making and AI trading decision systems. 🔍 Accuracy & running costs An automation that needs constant correction creates more work for your team. I validate outputs against real examples, compare model performance and use smaller, lower-cost models where they meet the required standard. Fixed rules and calculations run in code, with clear checks for missing data, failed steps and results that need human review. This helps keep the workflow consistent, the API bill manageable and problems easier to investigate. 🤖 AI Workflow Automation I design and build workflows for lead generation, document processing, data enrichment and reporting, connecting your existing tools through APIs. For my own startup, I built a lead-generation system covering Companies House research, contact discovery, email drafting, sending and tracking through OpenAI, Google Workspace and GitHub. I’m also co-developing LtdRecord, a proactive AI accountant for UK small businesses. That work involves translating accounting processes into automated workflows with defined rules and review points. 📈 Quantitative Trading & Development I develop Python systems for strategy research, backtesting, market-data processing and trading execution. Previous client projects include Polymarket market-making, QuantConnect equity-options algorithms, live trading pipelines and an AI-based TAKE/SKIP decision engine. I also review and improve existing systems, including data pipelines, testing logic and execution code. 📌 Core Skills 🔹 AI workflow design & business process automation 🔹 Python development & API integration 🔹 OpenAI API integration & model evaluation 🔹 Document extraction & structured validation 🔹 Lead research, enrichment & outreach automation 🔹 Quantitative research, backtesting & trading execution Have a process that takes too much manual work, or a system that needs improving? Send me a brief outline of what you’re working on. I’d be happy to discuss how I can help.