Featured professional work
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Each card gives the context, engineering focus, and evidence before you open the full case study.
Independent Product | Full-Stack Mobile Development & Product UI
A production React Native application for which I own the architecture, interface decisions, responsive phone and tablet workflows, and feedback-driven product iteration.
Evidence: shipped to Google Play with offline-first data, optional synchronization, automated testing, and ongoing maintenance.
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Frontend Modernization | React & Product UI
Translated marketing and Adobe XD requirements into responsive React interfaces while modernizing legacy Knockout.js code and refactoring important C#/.NET backend functionality.
Focus: design-to-code execution, interaction quality, usability, maintainability, and visual presentation.
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Full-Stack Product Engineering | Angular, Payments & UI
Customer-facing Angular and TypeScript work alongside ownership of payment, foreign-exchange, banking-integration, API, and FIX functionality.
Impact: customer-requested FIX functionality contributed to roughly 15% sales growth.
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Toptal • Healthcare / insurance
Backend engineering on an integration-heavy platform, with stronger error handling, code reviews, and partner-facing REST APIs.
Evidence: seven or more partner integrations delivered.
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Toptal • Fintech / trading
A React UI that turns cryptic, third-party real-time options data into configurable, searchable, filterable tables.
Focus: real-time WebSocket data and trader usability.
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Medical Software | WPF, C++ & Systems Engineering
Three projects spanning ExacTrac verification, a WPF interface and C++ controller for a breathing-pattern robot, and an FTDI-based USB-to-serial communication interface.
Impact: improved breathing-pattern reproduction precision by 51% and ExacTrac image-registration precision by roughly 8%, alongside reliability-focused controller and interface work.
Econoinvest | Securities Trading & Portfolio Analytics
Developed the MVP for an electronic-securities trading web application, then built portfolio-analysis and asset-allocation models for the Wealth Management unit.
Evidence: the work supported a team responsible for more than $200 million in assets under management; the trading MVP was aimed at increasing client-acquisition capacity by up to 70%.
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Arca | Quantitative Finance & Trading Automation
A fixed-income portfolio-structuring framework combined with Excel-based “Speed” Sheets for faster, more accurate multi-account bond trading.
Evidence: quantitative tools supporting more than $7 million in managed fixed-income portfolios.