Hi, I’m Tonny B — I help traders turn their strategies into fully automated trading systems using NinjaTrader, Pine Script (TradingView), C# and Java. With over 3 years of hands-on experience, I specialize in building custom indicators, automated strategies, and backtesting systems that bring real trading ideas to life — fast, reliable, and with clean, well-documented code. What I Can Build for You Fully working Trading Bot NinjaTrader strategies & indicators (NinjaScript / C#) TradingView indicators & alerts (Pine Script v5) Backtesting & optimization systems for strategy validation Real-time trade automation with broker API integration Why Traders & Developers Work With Me Clear communication and milestone-based delivery Fast turnaround without compromising quality Deep focus on practical trading logic, not just coding Whether you’re testing a new idea or scaling a proven system, I can help you automate it with precision and performance. Message me today — I’ll send you a personalized plan, timeline, and quote (fixed price or hourly).

I build , deploy, optimize, and keep algorithmic trading systems running reliably in production — not just code, but execution that doesn’t break under real market conditions. 🧠 15 months hands-on across crypto, forex, and equities From strategy logic → to live execution → to infrastructure stability. ⚙️ What I actually do 🖥️ Infrastructure & Deployment Deploy trading systems on Linux (SSH, services, process control) Ensure uptime, auto-restarts, and crash recovery Handle real-world production issues (not theory) 📡 Execution & Connectivity Configure and maintain FIX connections Work with WebSockets + exchange APIs Migrate trading engines across exchanges & architectures 🔍 Monitoring & Debugging Deep log analysis & anomaly detection Fix execution mismatches, dropped fills, latency issues Debug binary market data streams 📊 Strategy & Data Build + backtest strategies (MQL5, PineScript) Data analysis with Python (Pandas, Matplotlib) Extract real signals from noisy datasets 🛠️ Tech Stack Linux · Python · C# · FIX Protocol · MQL5 · PineScript · Node.js WebSockets · CCXT · Docker · Pandas · Matplotlib 🎯 Who I work best with Traders who need systems that don’t fail live Quant devs who need execution + infra handled properly Teams tired of “it works locally but not in production” 📈 Track Record 400+ hours on a single long-term infra engagement 100% Job Success Score 🏆 Top Rated on Upwork If your trading system needs to run clean, stable, and production-ready — I handle that.

I am an Experienced financial markets software developer specializing in asset-agnostic, multi-user trading systems and algorithmic trading platforms. -C++ (17/20), C#, Python for ultra-low-latency trading infrastructure -Sub-microsecond execution paths, lock-free/zero-copy pipelines, custom allocators, CPU pinning, async I/O -FIX 4.x/5.x, FIX-FAST, ITCH/OUCH, CME iLink 2.0, CME MDP 3.0 — full protocol implementation & certification -High-speed market data processing: multicast UDP, depth aggregation, order-book reconstruction -Cross-venue arbitrage, market making, synthetic orderbooks, fast cancel/replace loops, burst execution -Execution & connectivity: PrimeXM, LMAX, IBKR (TWS & FIX), TT, FX/CFD brokers, Binance/Bybit/OKX/Coinbase, custom FIX hubs -Market data (for backtesting/analytics, not execution): Databento, Polygon, dxFeed, Alpaca, SIAC/OPRA -Crypto infrastructure: latency-optimized WS/REST clients + Uniswap V2/V3 & 1inch smart-contract execution -MT4/MT5 server-side engineering: A/B-book routing, LP aggregation, dealer logic, bridge development -Trading platforms: MetaTrader 4/5, TradingView (Pine Script), Trading Technologies (TT), QuantConnect, Interactive Brokers TWS, Polymarket, HummingBot.

I am a Quant Developer with 10+ years of experience in building high-performance trading systems, financial applications, and scalable web platforms. My expertise spans across algorithmic trading, FIX API integration, and full-stack web development, enabling me to deliver end-to-end solutions for automated trading, risk management, and market data processing. Core Specializations: ✔ Trading Application Development: Algo trading bots, execution strategies, FIX API integration, and broker connectivity (MT4, MT5, Python, AFL, Pine Script). ✔ FIX API Expert: Custom order execution systems, real-time market data handling, and FIX protocol implementations. ✔ Quantitative Development: Strategy backtesting, statistical modeling, and market data analysis using Python, Pandas, and NumPy. ✔ Web Application Development: Scalable community and administrative portals, server-side development, and custom API solutions. ✔ End-to-End Development: From planning and architecture to deployment and optimization of web and trading applications. Tech Stack & Expertise: 🔹 Backend & Trading: Python (Django, Flask), Node.js, FIX API, AFL, Pine Script 🔹 Frontend: HTML, Tailwind CSS, JavaScript 🔹 Databases: MySQL, MongoDB, Apache Cassandra 🔹 Data Science & Analytics: Pandas, NumPy, Machine Learning for Finance 🔹 CMS & Web Platforms: WordPress, Custom Website Routing I am available for both short-term and long-term contracts and always open to discussing new projects that leverage my expertise in quantitative finance and algorithmic trading. 💬 Let’s connect and build something impactful!

Dear client, I offer over 12 years of experience as a trading systems developer and retail trader across all asset classes and have exposure to the most popular script languages and platforms. I cover the design, coding and testing of all projects, including backtesting and paramenter optimization. Main interest: developing trading indicators and strategies. (Ninja 7/8, MT4/5, TradingView Pine, etc) and dealing with custom requests for Brokers API connectivity and Order/Risk Management. Proactive and solution oriented, I have also developed a network of experts should a project require more people or new expertise. Advanced programming skills in MQL4, MQL5, Ninja C# , C, C++ , C#, Java, VBA/Excel, SQL, MySQL. Technologies: .Net Framework, Windows, Unix. Platforms: Interactive Brokers, TradeStation, MT, TradingView. Expertise in financial markets, asset valuation, risk management,trading strategies, database connectivity and quantitative analysis. Let me know your ideas and I will do my best to put them into action!

Looking to build stable, production-ready AI applications backed by high-performance architecture? I am a Senior .NET Developer and AI Engineer with over a decade of hands-on experience designing robust backend architectures for high-transaction industries like Banking and Crypto Exchanges. I specialize in building the secure infrastructure required to run reliable AI applications—focusing on advanced Retrieval-Augmented Generation (RAG) pipelines, LLM integration, and multi-agent systems. By leveraging C# .NET Core and Docker-distributed environments, I ensure your AI initiatives move seamlessly past the prototyping phase and scale safely in production. 🛠️ CORE AI & BACKEND CAPABILITIES: • AI Orchestration & RAG: Architecting advanced Retrieval-Augmented Generation (RAG) pipelines, semantic data strategies, and multi-agent systems using modern LLM frameworks. • Enterprise .NET Architecture: Designing secure, high-throughput C# .NET Core microservices, WebAPIs, and robust transaction layers. • Database & Query Optimization: Advanced T-SQL data modeling and performance tuning to handle complex underlying datasets efficiently. • Containerization & Deployment: Building and isolating AI workloads across robust Docker-distributed infrastructure environments. 💼 INDUSTRY-GRADE RELIABILITY: • FinTech & Banking Foundations: A proven track record of engineering multi-tenant banking products and crypto-fiat exchange platforms under strict delivery standards. • Production-First Mindset: Your proprietary business data remains secure, token usage stays optimized, and your AI systems are built to scale rather than break. Let’s move your AI project beyond a simple template and into a resilient production system. Click "Invite to Job" to discuss your project!

I am a Forex Trading Programmer with over 5 years experience. 👍My primary expertise lies in MQL4, MQL5, PineScript, Python and C#.👍 👍Nowdays, I connected the tradingview and another system with Python.👍 I am also well-versed iin using trading platforms such as MetaTrader, TradingView and NinjaTrader. Throughout my career, I have developed a variety of strategies and indicators tailored to meet my client's specific needs. My work includes implementing populer strategies like Grid and Martingale. 👍My another skill is AI trading bot development.👍 👍Also, I have developed the MetaTrader license system.👍 👍One of my standout projects was the development of a Copy Trading Sytem for MetaTrader and Tradelocker.👍 👍Pinescript is my skill.👍 I take pride in my ability to create innovative solutions in the trading domain. And also, I developed and integrated the API as like slack, tg for automation trading. My strong technical skills, combined with a deep understanding of trading concepts, allow me to deliver high-quality programming services. I am committed to helping clients achieve their trading goals through effective and efficient software solutions. Let's get started. Best Regards

Senior Algo Trading Developer | cTrader (c#), TradingView & NinjaTrader You need a developer who understands market structure, not just syntax. As a software engineer and active trader with nearly 10 years of experience, I build professional trading systems that do exactly what you expect them to do—reliably and precisely. I have completed 100+ trading projects, delivering maintainable, clean code rather than "quick hacks." My core expertise includes: cTrader / cAlgo (C#) Custom cBots, indicators, and trade management systems. Licensing systems and dashboards. Note: I am an active contributor to the cTrader Developer Network (CTDN), ensuring strict adherence to platform architecture. TradingView (Pine Script v4/v5) Strategy and indicator development. Multi-timeframe logic, scanners, and alerts. Converting ideas into non-repainting scripts. NinjaTrader 8 (NinjaScript) Advanced automated strategies and execution logic. Custom UI tools for discretionary or systematic trading. Why work with me? I don’t just "code what you say." I challenge unclear logic and help you refine your edge to ensure the final system behaves correctly under real market conditions. I understand risk management, execution rules, and edge preservation. If you value precision, honesty, and experience, let’s discuss your strategy.

I BUILD AI AGENTS AND PRODUCTION INTEGRATIONS — HANDS-ON, NO AGENCY Claude-based agent orchestrators. MCP tool integrations. OAuth flows, webhooks, and event-driven pipelines. Solo operator with 11 years of institutional engineering background at ION Trading (Credit Suisse, JPMorgan Chase), now building AI systems full-time. Currently at TradeAdapt.ai — a multi-agent Claude platform running unattended against live market data 6+ hours per day in production. 🤖 AI / AGENT DEVELOPMENT Claude API — multi-agent orchestration, assistant-prefill JSON enforcement, tool use MCP integrations — Google Drive, Gmail, Calendar connected; custom MCP servers Prompt architecture — per-agent schemas, cost budgets, conversation state management Evaluation harnesses — batch replay, prompt regression testing, live/batch parity RAG & retrieval — context engines tuned for real-time data pipelines Cost optimization — ~75% per-call token reduction without losing context 🔧 GENERAL ENGINEERING Node.js, Python, Electron — daily production work REST APIs, webhooks, OAuth flows, event-driven architectures Cloud deployment, version control, basic CI WordPress/PHP for companion sites and marketing pages Desktop apps that run unattended for hours (system tray, TTS, streaming data) 📊 TRADING & FINTECH DOMAIN Deep domain expertise when the project calls for it — I'm an active trader and built institutional systems for a decade. 25+ years active trading — FX, equities, crypto, futures (NQ/ES/YM) Hedge fund founder, "Forex 500" competition winner Built order management systems at ION Trading for tier-1 banks (Credit Suisse, JPMorgan) Platforms: TradingView / Pine Script, MT5 / MQL5, NinjaTrader / NinjaScript, cTrader Indicators, strategy automation, risk management, webhook alert systems Platform migrations — one strategy, deployed across TradingView, MT5, NinjaTrader 📈 WHY CLIENTS CHOOSE ME Real Production Experience: TradeAdapt is a live AI system I run every market day — my code holds up under actual load Senior Engineer: I read a brief, ask the right clarifying questions up front, and ship Solo Operator: No agency middlemen, no subcontracting — you work with the person doing the build Honest Quoting: Fixed-price work scoped before quoting, scope drift flagged in writing Clean Code: Modular, documented, built for you to modify later Long-Term Focus: I prefer ongoing engagements over one-off jobs 🚀 LET'S BUILD Send me the build brief. I'll ask the clarifying questions and give you an honest estimate. 📧 DNelson@TradeAdapt.ai

Hi! I’m a financial markets professional with over 8 years of hands-on experience in trading and strategy development. My expertise includes algorithmic trading using Pine Script, volume profile analysis, and order flow techniques to identify high-probability setups. I’ve successfully managed 3 trading accounts, passed proprietary firm evaluations, and consistently generated certified profits. Whether you need a custom indicator, a profitable strategy, or insights into market microstructure, I bring deep knowledge and real-world results to every project. My trading process is based on order flow analysis using the VolSys platform, applied to the Nasdaq (NQ) during the U.S. session. I trade in the direction of the prevailing trend, targeting moves between 50 and 150 points, always with impeccable risk management as the foundation of every decision.