Selected Work

Live dependency mapping platform that visualizes system relationships, health, and failure impact for modern distributed architectures.

• Designed and implemented a from-scratch Clean Architecture solution across Domain, Application, Infrastructure, Persistence, and Web layers.
• Built blast-radius what-if simulation to instantly visualize downstream impact when a selected dependency goes down.
• Implemented real-time dependency and health updates over Server-Sent Events with searchable and filterable graph interactions.

Word documents in .NET, rendered like Word. A .NET library for converting, editing and generating Word documents with no Office installation or native dependencies.

• Converts DOCX, DOC, RTF, HTML, Markdown and text to PDF, including PDF/A-2b and tagged PDF, with 10+ formats in and out.
• Edits documents with find and replace, JSON placeholder filling, bookmarks, fields, forms and content controls.
• Runs mail merge from objects, JSON, DataTables or custom data readers, and composes documents through a fluent API.

Business rules as JSON, compiled to delegates. A .NET rule engine that turns JSON rule documents into high-performance expression-tree delegates at around 100 ns per rule.

• Compiles JSON rules into expression-tree delegates, evaluating at ~100 ns per rule when warm, with zero dependencies in the core.
• Supports conditions with comparisons, text, sets, regex and nested AND/OR/NOT logic, plus computed values.
• Provides decision tables with first/collect hit policies and Any/All/None/count collection operations.

Local-first RAG web application that indexes Markdown and PDF documents into SQL Server vector storage and answers questions using Ollama models.

• Implemented Retrieval-Augmented Generation with SQL Server 2025 native vector search for document-grounded answers.
• Built streaming chat responses and ingestion progress updates over Server-Sent Events.
• Developed incremental ingestion pipeline with configurable chunking, overlap, and retrieval thresholds.

DbUp-based SQL Server migration tool for running versioned scripts across staging and production environments through local runs and Azure Pipelines.

• Implemented controlled migration flow with PreDeployment, Scripts, and PostDeployment stages plus manual rollback references.
• Embedded SQL migration scripts as assembly resources and executed them in deterministic order using numeric versioning.
• Added preview mode to list pending scripts before execution, improving deployment safety in CI/CD pipelines.

ESP32-S3 remote input controller that exposes a secure WiFi web interface and sends USB HID keyboard and mouse actions to a target device.

• Built dual-interface control flow where mobile users connect over WiFi while the board emulates keyboard and mouse over native USB HID.
• Implemented real-time command channel over authenticated WebSocket sessions for movement, clicks, key events, shortcuts, and text input.
• Added FreeRTOS queue-based HID command processing to keep asynchronous web callbacks responsive under active input streams.

Automated home loan application platform integrating rule-based validation and background checks to reduce manual assessments.

• Reduced manual assessment effort through workflow automation.
• Improved processing consistency and speed for lending operations.

Document verification platform with biometric checks, OCR validation, e-signatures, and automated document processing.

• Increased verification accuracy with automated checks.
• Reduced manual intervention in document handling workflows.

POS and finance platform with warehouse and customer debt modules used by 160+ clients.

• Served 160+ clients with business-critical accounting workflows.
• Provided inventory and debt management visibility for operations teams.

Document archiving solution used by 500+ clients for secure indexing and retrieval.

• Deployed to 500+ clients across organizational contexts.
• Improved access and lifecycle control for archived documents.