I'm a Full-Stack Developer with 7+ years of experience building web applications, automation tools, Telegram bots, and trading systems. I specialize in Python (FastAPI, aiogram), JavaScript/React, and PostgreSQL, with a strong focus on delivering clean, scalable, and production-ready solutions. Also experienced in WordPress plugin development, PHP, and WooCommerce customization. What I build: 🤖 Telegram bots — business automation, notifications, CRM integrations, payment systems 📈 Trading bots & fintech tools — cryptocurrency trading automation (Bybit API), market analysis dashboards, portfolio trackers 🛒 Marketplace automation — price monitoring, competitor analysis, and product management tools for Ozon and WildBerries 🧠 AI-powered applications — OpenAI integrations, product description generators, smart automation pipelines 🌐 Full-stack web apps — REST APIs, admin panels, SaaS platforms with React frontend and FastAPI/PostgreSQL backend I'm self-driven, communicate clearly, and deliver on time. Whether you need a quick bot or a complex multi-service platform — I'll get it done right.

I'm a technically-minded developer focused on automation, intelligent systems, and AI integration whilst actively building my expertise through hands-on projects. I work with Excel VBA | Python | Formula's, tools like PowerShell, Node.js, and Pine Script to create solutions that streamline workflows, automate diagnostics, and enhance system efficiency. Much of my work is practical and experimental: developing algorithmic trading strategies, and even integrating LLMs to boost productivity. I take a security-conscious, system-oriented approach to every project, constantly learning and refining as I go. If you're looking for someone who's not just repeating textbook solutions but actively solving problems, adapting fast, and thinking critically about how to build resilient automated systems, I'm ready to contribute.

Quantitative Developer and Python Engineer specializing in algorithmic trading strategies, quantitative analysis, and trading bot development. I design, implement, and optimize automated trading systems for platforms such as MetaTrader, NinjaTrader, and TradingView (Pine Script), with a strong focus on performance, risk management, and market efficiency. My expertise includes: Python for trading & data science: backtesting, feature engineering, statistical modeling, and ML-based strategies. Algorithmic trading systems: building robust bots, execution engines, and strategy automation. Financial data analysis: time series modeling, indicators, and predictive analytics. Platform integration: MetaTrader (MQL), NinjaTrader (C#), TradingView (Pine Script). Backend development: Django, Flask, REST APIs, Docker – ensuring scalable and reliable infrastructure for trading tools. Additional skills: image/video processing, computer vision, blockchain dApps (Solana), and performance-critical solutions in C++/Java. I have delivered diverse freelance projects ranging from quantitative trading strategies to backend platforms, always maintaining clean code, transparency, and client-focused results. My current focus is helping traders and firms transform ideas into working, data-driven trading systems.

Full-stack developer with over 5 years of building Web applications and over a year of developing AI agents.

I turn trading strategies into automated systems that perform in live markets — not in theory, in production. Dozens of successfully delivered projects on MQL5 's official freelance platform — all with top client ratings. What I build: → Expert Advisors (scalping, grid, hedging, trend-following, multi-timeframe) → Custom indicators, scanners, and dashboards → Automated trade execution and risk management systems → Strategy backtesting and optimization → TradingView to MT4/MT5 conversions → Bug fixing and improving existing EAs Platforms: MetaTrader 4, MetaTrader 5, NinjaTrader, cTrader, TradingView Languages: MQL4, MQL5, Pine Script, NinjaScript, Python, C++, C# Markets: Forex, Gold, Crypto, Stocks, Indices Clean code. Clear communication. Deadlines respected. Have a strategy that needs automation? Let's build it right.

I am a full stack web developer. I have more than ten years of experience in web development. I am confident that my skills and experiences will contribute to your company's success. I am ready to start working with you. My expertise area: ✅ PHP, Laravel, CakePHP, CodeIgniter ✅ ReactJs/Next, VueJS/Nuxt ✅ Node.js/Express.js, Prisma, Mongsose, JavaScript, TypeScript, Jquery ✅ REST API ✅ MySQL, MongoDB, PostgreSQL, Supabase, Firebase ✅ Tailwindcss, Bootstrap, LESS, SASS ✅ Memcached, Redis ✅ Wordpress, Joomla ✅ GitHub, GitLab, Bitbucket ✅ Mac, Linux, Widows

I'm not just a developer — I'm a trader. I have 3 years of real trading experience in stocks, forex, and gold. I also have 3 years of experience working with prop firms (funded trading companies like FTMO, Funding pips, Funded Next etc.). This means I don't just write code — I understand what you're trying to achieve. Here's what I can do for you: ✅ Build Trading Bots (Expert Advisors) for MT4 & MT5 You have a trading idea or strategy? I'll turn it into a fully automated bot. It will include proper risk management — like stop loss, take profit, trailing stop loss — so your account stays protected. ✅ Build Custom Indicators for MT4 & MT5 Want a special indicator that shows signals on your chart? I'll build it exactly the way you need it. ✅ Backtest Your Strategy (MT4/MT5) I'll test your strategy on years of past market data so you can see how it would have performed — before risking real money. ✅ TradingView Indicators in Pine Script I can build any indicator on TradingView using Pine Script — the platform's coding language. Clean, accurate, and easy to use. ✅ Backtest on TradingView I'll run your strategy through TradingView's backtesting tools and share a full performance report with you. Your strategy is not hard — it's just in the wrong hands! When you work with me, you get someone who: Has actually traded live markets Can help to build your psychology Knows what prop firm rules look like Speaks fluent English Provide support after the project You are welcome to discuss your strategy with me.

I build practical automation tools, dashboards, integrations, and trading-platform solutions for clients who need reliable technical execution without unnecessary complexity. My strongest areas include: * Outlook and Microsoft 365 add-ins using Office.js, React, and Microsoft Graph * React dashboards and internal tools * C#/.NET API integrations * SQL reporting, cleanup, and workflow support * Salesforce and third-party API integrations * TradingView Pine Script indicators, strategies, and alerts * MT4/MT5 indicators, EAs, dashboards, and trade-management tools * Pine Script to MT4/MT5 conversion * Risk-based lot sizing, alerts, and rule-based trading automation I usually work best on projects where the client has a clear business or trading workflow and needs someone to turn it into a working, maintainable tool. My approach is simple: 1. Confirm the exact workflow, rules, and expected output 2. Identify edge cases before coding 3. Build the first working version quickly 4. Test using real examples or sample data 5. Deliver clean files, notes, and next-step recommendations I am available part-time and prefer flexible, remote projects that can be delivered asynchronously. For larger work, I can break the project into clear milestones so you can review progress before committing to the full build.

I build production-ready AI apps, multi-agent systems, and automation workflows that move from idea to working software fast — without fragile demo code that breaks after launch. I’m Brian Castaneda, founder of Helionix Labs. I specialize in LLM-powered desktop apps, full-stack AI workflows, browser automation, and agent systems that are built for real users, real data, and real production environments. WHAT I BUILD • Multi-agent AI systems with orchestration, memory, RAG, tool-use, evals, and provider routing • Electron + React desktop apps with IPC, local storage, auto-updates, server control, and signed builds • Full-stack AI platforms using React/Next.js, FastAPI, Python, Node.js, SQLite/Postgres, and LLM APIs • Browser automation systems using CDP, headless Chrome, account workflows, scraping, and data pipelines • Custom AI integrations with OpenAI, Anthropic, Google, Stripe, Whop, Twilio, IMAP, brokerage APIs, and external tools WHAT I’VE SHIPPED • Mission Control — an Electron + React desktop app that coordinates 60+ AI agents across multiple LLM providers, with persistent SQLite memory, IPC routing, voice/chat control, and live server management. • AlgoX Trading System — a real-time signal routing and automation platform connecting TradingView, Python/Flask, NinjaTrader, C#, and broker-side execution workflows. • Colombia FX — a React Native mobile app live on Google Play with subscription billing and exchange-rate functionality. • Realty Suite — a white-label real estate SaaS with AI voice agents, CRM workflows, listing automation, and Vercel deployment. HOW I WORK 1. We define the smallest end-to-end version that proves the system. 2. I ship a working version early so you can test real functionality, not just review mockups. 3. I harden the product with logging, error handling, regression checks, and production workflows. 4. You communicate directly with me — no middleman, no slow handoffs. TECH STACK TypeScript, React, Next.js, Electron, Node.js, Python, FastAPI, Flask, SQLite, Postgres, OpenAI, Anthropic, Google SDKs, LangChain/RAG, Coinbase AgentKit, CDP browser automation, Docker, AWS, Vercel, React Native, Expo. HIRE ME FOR ✓ Multi-agent LLM systems ✓ AI-powered SaaS features ✓ Production Electron desktop apps ✓ Full-stack AI workflows ✓ Browser automation and data pipelines ✓ Custom AI integrations ✓ RAG, tool-use, memory, and evaluation systems ✓ Automation platforms that need to work reliably in production If you need an AI product, automation system, desktop app, or full-stack workflow that needs to survive real users — not just look good in a demo — message me with what you’re trying to build. I’ll tell you if I’m the right fit and how I’d approach it.

👋 Hey there! I'm a highly motivated and flexible Python/Go developer who's always inspired to take on interesting and challenging projects. My areas of expertise include: 💻 Python development 🌐 Web backends 🤝 Software/data integration 🗄️ Database design 🚀 Microservices 🤖 Trading bots 🕸️ Distributed web crawling and scraping. I have over 5 years of experience developing Telegram bots in various areas and more than 2 years of experience developing trading bots for multiple cryptocurrency exchanges (high-frequency trading, arbitrage, and real-time data tracking). Let's collaborate on your next big idea!