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I am a highly experienced Software Developer with over 12 years in the industry, including 8 years with Fortune 100 companies as a full-stack Microsoft developer. My expertise spans Azure cloud platform and on-premise development, focusing on Financial Services, Commercial Software, HR, and operational applications. I thrive in global, Agile environments, leading projects, ensuring smooth transitions, and driving continuous improvement. My skill set includes .NET Core, Angular, Azure Cloud, Terraform, C#, SQL Server, architectural design, and software framework development. I’m ready to bring my practical expertise to help clients efficiently achieve their development goals. I have worked with the following technologies: ✓ .NET / .NET Core C# ✓ Angular, TypeScript ✓ C# and VB ✓ SQL Server ✓ Terraform ✓ Azure Cloud ✓ Azure Data Factory ✓ Azure Azure App Services ✓ Web Servers(IIS, Apache, Tomcat) ✓ Rest API design, architecture, and implementation ✓ Clean Architecture and Design ✓ GIT (AzureDevops, Github, ) ✓ CSS, Bootstrap ✓ ASP.NET WebForms ✓ Database architect and optimization including Microsoft SQL/T-SQL; ✓ OAuth ✓ Identity Server 4 ✓ .NET Desktop (WinForms); ✓ Postman ✓ Fiddler ✓ Swagger ✓ Azure DevOps ✓ Docker ✓ MySql ✓ Visual Studio 2022/2019/2017 ✓ Agile Scrum

I build trading systems that survive live execution — not just backtesting. 27 years of C# development. 20+ NinjaTrader 8 indicators and strategies. 10+ MetaTrader 5 Expert Advisors. Python ML pipelines with walk-forward validation and ONNX deployment. PhD in Management Information Systems. Every system I deliver comes with full source code, documentation, and a walkthrough so you understand what I built and why. I'm a developer who understands trading, not a trader who learned to code. That difference matters when your strategy needs to handle partial fills, slippage on a fast NQ breakout, or a prop firm's trailing drawdown rules. WHAT I BUILD NinjaTrader 8 (NinjaScript/C#): Custom indicators (regime filters, order flow, harmonic patterns, composite dashboards), automated strategies (breakout, momentum, mean-reversion, institutional zone detection, volatility compression), advanced trade management (multi-target exits, ATR-scaled trailing, break-even, time-based exits, re-entry logic), full parameter exposure for Strategy Analyzer optimization, and data export pipelines for ML model training. MetaTrader 5 (MQL5): Expert Advisors for live and prop firm environments. Box breakout (6 versions), volatility compression straddle, Heiken Ashi exhaustion, multi-strategy EAs. Session filtering, spread guards, prop firm compliance (drawdown limits, daily loss caps, consistency rules, magic number management), and risk-based position sizing. Python ML Pipelines: XGBoost, LSTM, Transformer, and MLP models for session-type prediction, directional forecasting, and signal filtering. Walk-forward validation, SHAP explainability on every prediction, Monte Carlo stress testing (10,000 equity paths), and ONNX export for sub-millisecond inference inside NinjaTrader. Pine Script (TradingView): Multi-timeframe systems with non-repainting architecture, state-based logic, session-aware execution, and liquidity sweep / SFP detection. Cross-Platform: Strategy porting (NT8 ↔ MT5 ↔ ATAS ↔ DAS Trader ↔ Python), cross-platform signal routing across 5 simultaneous platforms, and broker API integration (Interactive Brokers TWS API, Rithmic, MetaTrader broker API). FLAGSHIP BUILD: IMBOne Cortex The most complex system in my portfolio — a quantitative trading intelligence platform I architected and built end-to-end as sole developer. WPF/.NET 9, 7 server projects, 30+ table MySQL database, SignalR real-time streaming, Redis caching layer. Core systems: real-time data engine processing 100K+ market data messages/min via Polygon WebSocket. Dark pool level detection (FINRA data, 4-tier classification). Gamma exposure engine (DIY from raw options chain data — zero vendor dependency). Pre-market scanner screening 8,000+ equities. ML pipeline with XGBoost classifiers (session-type F1=0.736, IB-direction F1=0.727), nightly automated retraining, SHAP explainability rendered in-app, and ONNX Runtime inference. 40+ engineered features. If I can build this solo, I can build what you need. SELECTED RESULTS ▸ Institutional Zone Breakout (NQ) — Sharpe 2.30, 53.9% WR, 668 trades ▸ ICT Liquidity Sweep — Sharpe 4.81, PF 1.93 ▸ Box Breakout EA (v6.5) — directional bias model, 82% AUC ▸ EURCHF ML Pipeline — walk-forward validated, mean Sharpe 4.02, all folds positive ▸ 80% Rule Debunk — 5+ years NQ data, measured 18.3% vs. claimed 80% ▸ Level Touch Probability — distance gravity model, AUC 0.78–0.85 ▸ NQ Breakout Pipeline — MBO-10 microstructure, absorption signal identification HOW I WORK Understand your strategy logic and goals before writing code Build clean, documented, configurable code — every parameter exposed Validate rigorously — walk-forward, Monte Carlo, statistical significance testing Deliver full source code + performance report + walkthrough session All client strategy code treated as confidential. NDA available. Your edge is yours. PROP FIRM EXPERIENCE: Systems designed for Tradeify, TopStepX, and similar environments. Trailing drawdown, daily loss limits, consistency rules. Risk controls enforced independently from strategy logic — the risk layer has absolute veto authority. TECH STACK: C# (27 yrs) · NinjaScript · MQL5 · Python · Pine Script · XGBoost · LSTM · SHAP · ONNX Runtime · SignalR · MySQL · Redis · Databento MBO-10 · Polygon API · Rithmic · IB TWS API · pandas · NumPy · scikit-learn PhD · 27 years C# · 17 years university teaching (I explain what I build — you'll understand your own system) · Bilingual English/Spanish · South Florida (EST) Let's build something that works in live markets, not just in backtesting.

Over 15 years of software development expertise: small- to large-scale projects. GUI, console, multi-tier, web, service and embedded applications. Line of Business applications. Amazon MWS API. Application domain modeling. Domain Driven Design. Distributed telemetry systems. Mission-critical telecommunication applications. Freelance/independent software development/consulting experience. Ability to lead small groups of developers. SPECIALTIES: - C#, C++, C, Objective-C; - .NET, .NET Core, EntityFramework, WebApi, WPF, MSMQ, MS Prism, MS Unity, etc.; - JSON, XML, XSLT, HTML; - Database design, stored procedures, MS SQL Server/CE, Oracle, Sqlite; - OOA&D, OOP, UML, CI, Design Patterns, UI; - Visual Studio, MSBuild, NUnit, NAnt, CCNET, SVN, TFS, ClearCase, MKS, VSS, Git, GitHub, Bitbucket; - Cocoa, Core Data, Xcode; - Enterprise Architect, Rational Rose, Visio.

With over 20 years of experience designing and developing web and back-end applications, I am looking for my next interesting side project. I bring extensive full-stack development experience using the .NET ecosystem, including C#, .NET Core and SQL Server. I look for opportunities to solve problems and deliver the solution that fits your needs. What I Can Do For You: ✅ .NET Development – Skilled in all aspects of .NET development from WinForms, C#, VB.NET, Windows Services and Web API development. Experienced with multi-threaded applications, object-oriented and asynchronous programming with async/await. ✅ Web / Front End – Updating and refreshing web applications using HTML, JavaScript, ASP.NET Web Forms, MVC and Razor Pages. ✅ Backend & API Integrations – Create and deploy RESTful APIs for internal use and external partners using Web API and Swagger, as well as consuming third-party APIs for internal use. Completed integrations include multiple payment processors, text messaging solutions, point of sale reporting, AWS S3 and more. ✅ Database Design & Development - SQL Server, MySQL & PostgreSQL using Entity Framework and/or Stored Procedures. Migrate systems and applications from one DBMS to another. ✅ SQL Server Replication – Set up transactional or merge replication between servers, desktops or even multiple Windows tablets. ✅ ETL Scripting – Data extraction or loading using native SQL Server tools and Powershell. ✅ System Administration – Configure and manage Windows server systems in multiple hosting environments including AWS, & migrate virtual machines from Hyper-V to ESXi. ✅ DevOps – Deploy applications to IIS, AWS and Azure functions. Comfortable using Git, SVN and Azure DevOps for source control. Professional Strengths: 🎯Experience with a wide variety of clients in different industries. 🚀 Used to working remotely, providing clear & effective communication at every step. 🌟 Able to refactor problematic or legacy code to get projects back on track. ❇️ Highly accessible throughout the project for guidance & feedback. 🛡️Exceptional problem-solving skills and attention to detail. ✅ Available for conference calls as needed during business hours. I’m ready to bring your next project to life & exceed your expectations. Let’s connect and discuss partnership opportunities!

An accomplished information systems manager with demonstrated success in developing, designing and implementing solutions that improve business functionality. Possess diversified technical background in all aspects of information technology including system administration, development and project management.

Results-driven and client-focused .NET Full Stack Developer with a strong track record of delivering scalable, high-performance applications across web and desktop platforms. I bring over 8 years of hands-on expertise in full lifecycle software development - combining clean, maintainable backend code with responsive and intuitive front-end interfaces. Skilled in both building new applications from scratch and modernizing legacy systems, I ensure every project meets technical standards, business goals, and tight deadlines. Core Skills & Technologies: Backend: C#, ASP.NET Core, Web API, Entity Framework Frontend: JavaScript, HTML5, CSS3, Bootstrap, Blazor, Angular, React (if applicable) Database: SQL Server, T-SQL, database architecture and optimization DevOps & Tools: Git, Azure DevOps, CI/CD, Visual Studio Architecture: RESTful APIs, Microservices, MVC, clean code principles Project Delivery: Agile/Scrum methodologies, clear documentation, stakeholder collaboration What I Offer: Full-stack development tailored to your business needs Clean, well-documented, and testable code Timely communication and reliable delivery Long-term maintenance and support Whether you need to build a complex enterprise system or streamline an existing application, I bring the technical depth and business insight to make your project a success. Let’s connect and turn your ideas into solid, working software.