Principal Software Engineer

A worldwide platform redefining digital professional identity by enabling individuals and organizations to build trusted portfolios, validate expertise, and showcase accomplishments on a global scale.

• Worldwide professional portfolio creation and management
• Verified achievements, certifications, and career milestones
• Organization, institution, and team portfolio support
• High-performance, secure, and scalable SaaS architecture built for global reach

A scalable, domain-driven microservice ecosystem engineered in C# .NET Core to model complex real-world entities, orchestrate RDF triples/ontologies, and execute high-throughput SPARQL queries over federated semantic networks.

• Enterprise Knowledge Graph Architecture: Modeled complex real-world concepts, entities, and multi-relational topologies using W3C semantic standards (OWL, RDF) to deliver high-performance graph processing.
• High-Throughput SPARQL Query Engine: Designed and optimized C# .NET Core microservices capable of parsing, executing, and retrieving high-frequency SPARQL graph queries across distributed semantic datasets.
• Domain-Driven Microservices (DDD): Architected robust, decoupled RESTful APIs from scratch adhering to Domain-Driven Design principles, fully documented via OpenAPI/Swagger specs for enterprise integration.
• Relational Entity Linking & Data Ingestion: Built specialized object mapping layers and entity resolution pipelines to continuously convert unstructured/relational data into unified semantic graph structures.
• Enterprise Infrastructure Integration: Deployed scalable backend services integrated with Liferay DXP portals, leveraging Postman automated testing suites and Git-based collaborative workflows.

Global-scale, high-throughput secure mailing infrastructure designed for zero-trust enterprise environments.

• Advanced-grade encryption with TLS 1.3 across enterprise ports
• Next-gen Auth: Full-stack DKIM, SPF, DMARC, and BIMI automated signing
• Carrier-grade scalability: Engineered in Rust for memory safety
• Anti-Abuse Engine: Built-in rate limiting and reputation shielding

A mission-critical Command & Control telemetry ingestion kernel executing concurrent thread pools to parse high-frequency XML metadata streams, orchestrate hardware events, and process system mutations in real time.

• High-Performance Integration Kernel: Engineered a proprietary C# integration driver leveraging asynchronous background execution threads to bridge low-level telemetry sources with enterprise supervision interfaces.
• High-Throughput LINQ-to-XML Parsing: Designed memory-optimized XML deserialization pipelines using XDocument and invariant culture handlers to process complex metadata structures without thread-blocking.
• Concurrent Event Bus Architecture: Implemented asynchronous thread pools and Task-based event dispatchers (`System.Threading.Tasks`) to handle peak surges of incoming telemetry payloads.
• Isolated Profiling & Diagnostics: Managed sandbox virtualization on Microsoft Hyper-V to perform memory profiling, packet analysis, and bandwidth tuning under heavy synthetic loads using Telerik Fiddler.

A unified C# .NET SDK and driver ecosystem controlling heterogenous industrial hardware, electronic delay generators, and smart IoT sensors with sub-millisecond precision.

• Unified Driver Architecture: Designed robust C# .NET drivers and SDK wizards to control electronic subsystems, signal delay generators, and analog-to-digital (A/D & D/A) conversion hardware.
• Multi-Protocol Industrial Interoperability: Integrated complex IoT hardware protocols (ONVIF, Modbus, BACNet, LoRa) to abstract physical device telemetry into standardized XML payloads.
• Precision System Control: Implemented asynchronous multithreading to manage low-latency hardware triggering, remote sensor actions, and automated device configuration across distributed networks.
• Virtualization & Linux Automation: Provisioned isolated Hyper-V sandbox environments and executed specialized Linux scripts for low-level file management, server access, and network diagnostics.

A high-throughput, bidirectional communication layer synchronizing commands, state mutations, and telemetry across three concurrent applications in real time.

• Tri-Directional State Synchronization: Engineered an ultra-low latency SignalR and WebSocket pipeline ensuring instant, zero-lag command propagation across 3 interconnected client platforms simultaneously.
• High-Throughput Socket Optimization: Implemented advanced socket buffer management techniques to guarantee zero packet loss during peak real-time event surges and remote state changes.
• Cross-Platform System Integration: Unified WPF desktop interfaces (MVVM), Web portals (Laravel/PHP), and remote edge clients into a seamless Service-Oriented (SOA) and Peer-to-Peer network topology.
• Bi-Directional Telemetry Pipeline: Designed continuous input/output data sync mechanisms backed by an optimized MySQL database layer handling high-frequency state persistence.

An enterprise Video Management System (VMS) orchestrating live video streams, multi-sensor telemetries (smoke/fire detection), hardware access control, and real-time XML-driven alarm propagation.

• Enterprise VMS & NVR Orchestration: Built a centralized, low-latency desktop dashboard (WPF/XAML) to interface with smart cameras, physical access control units, and concurrent NVR/DVR video streams.
• XML-Driven Telemetry Ingestion: Engineered a robust parser to consume high-frequency XML metadata streams from remote servers, mapping real-time sensor events and physical system states.
• Multi-Sensor Incident Automation: Integrated hardware sensor logic (including smoke detection, motion triggers, and perimeter access control) into a unified, high-reliability alarm propagation engine.
• Stream Optimization & Traffic Analysis: Diagnosed and tuned real-time video pipeline traffic and bidirectional telemetry exchange under strict bandwidth parameters using Telerik Fiddler and network analysis tools.

Zero-touch discovery engine that scans IP subnets and physical ports to automatically fingerprint, configure, and register smart IoT devices into central supervision platforms.

• Zero-Touch Discovery: Engineered automated IP subnet sweeps, multicast listeners, and physical port polling to detect connected hardware instantly.
• Hardware Fingerprinting: Implemented packet inspection handshakes to dynamically identify device types, credentials, and video stream specs.
• Automated Ingestion: Built a configuration pipeline that serializes device parameters and auto-registers endpoints into central control platforms.
• Fault-Tolerant I/O: Handled transient IP disconnects, noisy serial channels, and physical hot-swapping via robust retry/fallback mechanics.

A centralized, mission-critical digital engineering hub designed to unify disparate insurance workflows, automate complex operational processes, and orchestrate enterprise applications into a single, high-availability ecosystem.

• End-to-End System Design: Modeled and built a highly modular portal architecture supporting secure integration patterns, dynamic application embedding, and unified cross-platform UX.
• Micro-Application Orchestration: Engineered an extensible micro-frontend/micro-application ecosystem bridging .NET and Node.js microservices into a coherent enterprise portal.
• Real-Time Event Streaming: Implemented a low-latency, real-time notification framework utilizing .NET SignalR to broadcast mission-critical events and operational alerts instantly across distributed business domains.
• Enterprise Ecosystem Integration: Designed bi-directional integration layers for the Microsoft ecosystem, successfully embedding Power BI analytics dashboards and Power Apps workflows for advanced data-driven automation.

A centralized Ruby on Rails & GraphQL integration fabric that seamlessly bridges, embeds, and federates polyglot micro-applications (JS, .NET, Python, HTML and other programming languages) into a unified enterprise ecosystem.

• Unified Polyglot Gateway: Architected a centralized GraphQL gateway in Ruby on Rails to seamlessly interface and embed legacy/modern micro-applications into a single host environment.
• Federated Schema & Event Bridge: Leveraged GraphQL Schema Federation and real-time subscriptions to enable dynamic cross-platform data exchange and instantaneous UI/state synchronization across embedded apps.
• High-Performance Relational Storage: Designed an optimized PostgreSQL data persistence layer coupled with Redis Pub/Sub caching to manage multi-tenant app session contexts and routing metadata at scale.
• Secure Embedded Runtime Infrastructure: Engineered a secure communication bridge relying on JWT handshake verification, iframe messaging protocols, and granular role-based access control (RBAC) across decoupled services.

A high-performance, distributed MMORPG server framework and virtual world ecosystem capable of hosting thousands of concurrent users, managing dynamic virtual spaces, in-game economies, and real-time state synchronization.

• High-Throughput Game Loop (C++): Engineered a low-latency, multithreaded game server in C++ utilizing asynchronous network sockets to manage real-time character movement, spatial partitioning, and furniture asset positioning across instanced rooms.
• Game Economy & Web Architecture: Developed a comprehensive PHP-driven enterprise web portal managing user authentication, granular role-based permissions (RBAC), and a secure transactional marketplace/shop for virtual assets.
• Database Optimization & Persistence: Designed a highly normalized MySQL database schema optimized for high-frequency writes, tracking complex player states, inventory items, and persistent virtual world coordinates.
• Mesh Network Deployment: Orchestrated a secure, distributed testing environment leveraging Hamachi-based virtual networks, establishing reliable P2P and client-server communication channels for remote alpha-testing.