🔹 Core Expertise: Quantitative Finance: 20+ years developing algorithmic trading strategies (statistical arbitrage, ML/DL strategies and portfolio optimization) AI/ML Engineering: Production-grade implementations of transformer models (LLMs), NLP, and generative AI for financial forecasting Data Science: End-to-end model development—from stochastic calculus-based hypotheses to Python/PyTorch deployment 🔹 Select Achievements: Built a generative AI system that improved trading signal accuracy by +20% (Transformers + Monte Carlo simulations). Designed a low-latency arbitrage engine using C++/Python integration. Lecturer on econometrics. 🔹 Technical Stack: Languages: Python (NumPy, TensorFlow, PyTorch), PineScript, SQL, C++ (basics) AI/ML: Fine-tuning LLMs (Llama 2, GPT), time-series forecasting (Prophet, ARIMA), anomaly detection Tools: Docker, Kubernetes, AWS/GCP, Tableau/Power BI. 🔹 Education & Specialized Training: Generative AI Engineering: Transformer Models and LLM applications and fine tunning. Postgraduate Studies in Derivatives Markets - Focused on options pricing models (Black-Scholes, binomial trees) and advanced investment evaluation techniques Bachelor's Degree in Economics with coursework in econometrics, quantitative analysis, and financial markets 🔹 Clients Served: Fintech, Startups, Trading Firms and Retail Traders.

Hi, my name is John Wehland. I have a computer science degree from Portland State University and have specialized in programming for traders for over a decade. I help clients develop and automate their strategies and indicators across various platforms. I am especially fast and knowledgeable in NinjaTrader’s NT7 and NT8, and Metatrader’s MT4 / MQL4, with many tricks for getting around platform limitations and integrating either of them to various programs via APIs. I regularly work across many programming languages and platforms, including TradingView’s PineScript, TradeStation’s EasyLanguage, ThinkOrSwim’s ThinkScript, C#, Python… and am constantly keeping up my skills with new knowledge. It’s likely that if you have a question about automated trading possibilities, I’ll be able to help find you the answer. I value long term clients and good working relationships. My work is always well documented and organized so other developers can understand it and make further enhancements to it in the future. Two simple example projects I can show, RangeFinder and Vol_Bid_Ask, are in my portfolio and are free to use and/or distribute. Just let me know if you’d like the source code. I have done much more complex projects for many clients, but I do not own any of that code and have signed NDAs with many of them. I have many good references available upon request, for happy clients that I’ve worked with. Just ask. Please let me know how I can help you. -John Wehland

Algorithmic trading systems architect with 25+ years of experience and execution across three distinct industries. I spent 5 years (2002-2007) as a proprietary trader at Opus Trading Fund, a Goldman Sachs subsidiary, managing a $50M institutional portfolio under strict Wall Street risk discipline. That foundation shapes every line of code I write today. From 2008-2018, I worked as a commercial music producer in Atlanta, earning film placements (Paul Blart: Mall Cop, multiple TV series) and publishing deals with ASCAP and BMG. Collaborators include artists currently exceeding 1 billion aggregate streams on Spotify and Apple Music. That decade taught me how to deliver creative work to demanding clients under tight deadlines — a skill that translates directly to custom development work. Since 2018-Present, I've co-founded Wickstrader, a 4-partner quantitative trading operation building production algorithmic systems on the Interactive Brokers JavaScript API. January 2026 — Present Co-Founder, CodaPro.ai LLC Live trading automation platform that converts Pine Script V6 strategies into real broker execution via webhook. Integrates TradingView alerts directly to Tradovate (futures) and Alpaca (stocks/crypto). I lead strategy R&D — building, backtesting, and optimizing quant-grade Pine V6 strategies with honest commission, slippage, and risk controls baked in. Active on MES, MYM, MNQ, MGC, MCL and more. WHAT I DELIVER FOR CLIENTS: - Custom Pine Script V6 indicators and strategies for TradingView - Expert Advisor (EA) development for MT4 and MT5 platforms - Pine Script to MQL5/MQL4 cross-platform conversions - Automated trading systems with webhook integration - Backtesting, optimization, and strategy validation - Risk management and position sizing modules - Strategy audits, debugging, and code refactoring My published work on TradingView under @ArisCodes includes 12+ original indicators in the Confirmed Series library, earning over 1,100 aggregate community likes in just 3 months of publishing, including Delta Volume Pressure (561 likes), Liq Sweep + CHoCH + OB Instant, and ATR Trail Supreme. MY APPROACH: Every deliverable goes through the same institutional-discipline framework I learned on the prop desk. All code is clean, fully commented, non-repainting (barstate.isconfirmed gated), and validated through rigorous backtesting with Calmar ratio optimization. I treat every client project as if my own capital depended on it functioning correctly. WHAT CLIENTS CAN EXPECT: - Fully commented, production-grade source code - Detailed documentation walking through every component - Backtest results where applicable - Unlimited revision consultation during active projects - 30-day bug-fix guarantee post-delivery - Direct, timely communication throughout the build I'm selective about the work I take on and focused on long-term client relationships. I'm particularly well-suited for complex projects where code quality, reliability, and institutional-grade discipline matter more than the lowest bid. Languages: English (native) Availability: Full-time freelance Timezone: US Eastern (EST/EDT)

I'm an active trader and software engineer who builds quantitative trading systems from the ground up. I develop custom backtesting frameworks, screening tools, and automated trading pipelines in Python to support systematic strategies in US equities, with a focus on clean entry/exit logic, position sizing, and managing drawdown. As someone who actively trades using my own systems, I know the difference between a backtest that looks good on paper and one that holds up in live markets. I regularly work with trading APIs, data sources, and AI tools, including LLMs, MCP integrations, and multi-model setups, to streamline financial analysis and figure out what actually adds edge in a real trading workflow. My work covers the full development process: building reliable data pipelines, implementing and testing rule-based strategies against real performance metrics, and creating tools for every stage of trading, from market screening and signal generation to portfolio backtesting with proper risk metrics.

PhD-trained computational biologist and machine learning researcher with 10+ years of experience across academia and industry. I build reproducible data workflows, develop generative models, and conduct genomics and bioinformatics research. My passion lies in applying data engineering and machine learning to complex systems—ranging from systems biology to real-world business challenges. My skill set includes: * Data processing, engineering, and machine learning (including applications in finance and trading). * Software development best practices: version control, CI/CD, and production deployment. * Data scraping and use of LLMs for reasoning, automation, and workflow optimization. * Agile-style project management: short development cycles, realistic timelines, and transparent progress reporting through milestones.

I’m a full-stack dev and futures trader who’s been in the game 8+ years — building apps on one screen and flipping markets on the other. ⚡ Dev chops: React, Next.js, Tailwind on the front; Node.js, Prisma, Supabase, GraphQL on the back. I ship clean UIs, fast APIs, and production-ready systems without the bloat. ⚡ Trading chops: 8+ years trading futures and coding algos. I’ve built custom indicators, EA, strategies, and bots for TradingView, Quantower, MT4/5, NinjaTrader, and more. My stuff runs deep — order-flow logic, auto execution, risk control, and strategy automation. 🎯 Prop firm focus: I design systems that actually help traders pass evals, stay funded, and scale payouts. High win-rate, risk-tight, built for real accounts. Bottom line: whether you need a next-gen app or an algo bot that pays rent, I deliver both — the code and the trading edge.

Hi, my name is Javier! I am 26 years old and I am from Spain. I have more than 5 years of experience in Salesforce, mainly as a developer, although I have also worked as a consultant and managed a small team. I am now a freelancer and carry out projects focused on trading. I have worked on long-term structural solutions in large projects related to banks, electricity companies, NGOs, etc. I also have Platform App Builder and Platform Developer I certifications. In addition, I have experience in many other areas of development and infrastructure: database-level programming, REST API design and integration, process automation, Docker environment deployment, Linux system administration, web servers, use of tools such as Git, CI/CD, and working with distributed architectures. I have also worked with FastAPI, Python, C#, websites with authentication, security, tunnels, license control, scraping, VPS management, networks, proxies, etc. I adapt quickly, enjoy learning new things, and solving real technical problems. When I take on a new challenge, I don't stop until I succeed.

In the AI era, writing the code is the easy part — architecting a trading system that survives real markets is the hard part. That's where I come in. I'm a Senior Quant Systems Architect and an active trader since 2012, with two decades in financial markets and software. I don't just build trading bots — I've lived the markets they run in: the gaps, the halts, the slippage and drawdowns that quietly blow up systems built by people who never traded. Whether you trade Forex, Stocks, or Crypto, I turn your manual strategy into a fully automated, risk-controlled, data-driven system. My Core Expertise Includes: - **Trading Platforms & Language Syntax**: MetaTrader 4 & 5 (MQL4/MQL5), TradingView (Pine Script), NinjaTrader (C#). - **Execution Engines & EA Architecture**: Building modular Expert Advisors (EAs), custom indicators, and automated order routing systems optimized for fast fill rates and minimal slippage. - **Quant Infrastructure & Data Pipelines**: Custom Python pipelines for historical market data ingestion (Databento, ThetaData), cleaning, and time-series database design (TimescaleDB, Clickhouse). - **Crypto & Exchange Integration**: High-frequency API bridges and WebSockets integration for major exchanges (Binance, Bybit, Coinbase Pro) with redundant rate-limit handling. - **Visual Analytics**: Interactive React-based dashboard charts (Lightweight Charts) connected to live WebSocket feeds for real-time strategy monitoring. Why Work With Me? - **Risk-First Architecture**: Hardcoded drawdown limits, dynamic position sizing, and circuit breakers designed to protect capital in fast-market conditions. - **Strict Confidentiality**: Your proprietary trading algorithms, logic, and intellectual property are protected under strict NDA and absolute confidentiality. - **Mathematical Backtesting Integrity**: Rigorous historical analysis using event-driven Python engines (Backtrader/custom engines) to prevent look-ahead bias and overfitting. - **High-Performance Code**: Low-overhead execution logic written in C#, C++, and optimized Python (Pandas/NumPy) for sub-millisecond local processing. Let's eliminate human emotion from your trading and let the code do the heavy lifting. Send me a message with your strategy or project details, and let's discuss how we can build a production-ready execution system.

Tired of staring at charts all day, missing entries, or watching the perfect setup disappear while you were away? 🤖 I build trading bots that do it for you. Zero emotion. Zero missed signals. You bring the strategy. I build the bot that never sleeps. 💤 What I Can Build For You: 🤖 MetaTrader 5 & 4 — Expert Advisors EAs based on any indicator or price action strategy EMA, RSI, MACD, Bollinger Bands, Stochastic — any combination Breakout, retest, and consolidation zone strategies Partial close, trailing stop-loss, and dual take-profit logic Multi-timeframe signal confirmation Custom MT5 & MT4 indicators with arrows, alerts, and dashboards EA optimization, bug fixing, and code review Running multiple EAs simultaneously across all pairs 📊 TradingView — Pine Script Custom indicators with buy/sell signals and alerts Strategy scripts with full backtesting built in EMA ribbons, support/resistance zones, trend detectors Alert conditions for any strategy, webhook ready Converting TradingView ideas into working Pine Script Converting Pine Script strategy into MT5 or MT4 EA ⚙️ General Converting any manual trading strategy into a fully automated bot Works on Forex, Crypto, Indices, Gold, Stocks and all major pairs Clean well commented code, easy to modify anytime Live tested on real accounts, not just backtesting

I build trading algorithms the way a Swiss watchmaker builds gears - precise, reliable, and built to run while you sleep. For over a decade I’ve turned market noise into structured logic, crafting bots that execute faster than human reflexes and complain far less. I specialise in Python, quantitative modelling, strategy automation, and multi-exchange integration. Whether you need a market-making engine, a backtesting framework, or a stealthy bot that reacts before the candle closes, I design systems that stay sharp in any market weather. If your trading workflow feels clunky or manual, I’ll turn it into something smooth, automated, and quietly brilliant like an algorithm having a good day.