Engineering Leader building mission-critical production platforms

Platform prototypes, shipped systems, and real production platforms.

Engineering Leadership – Platform Architecture and Distributed Systems

I design and build production-grade platform architectures including APIs, distributed services, AI RAG platforms, and analytics pipelines. The public projects on this site are pre-production system builds used to validate architecture, failure models, scaling characteristics, and operational behavior before live deployment.

I own platform architecture, production stability, security boundaries, and delivery execution. I define service contracts, establish API boundaries, model failure scenarios, and validate scaling behavior under load. My focus is high-volume backend systems where uptime, data integrity, and blast-radius control matter more than feature velocity.

I lead senior engineers and engineering teams while remaining embedded in system architecture and production behavior. I drive architectural decisions, review critical implementation paths, resolve production failure modes, and ensure deployment readiness before systems go live. I am accountable for how systems behave in production.

My work includes mission-critical and revenue-impacting platforms built on Java (Spring Boot), .NET, Python, and Node.js within cloud-native architectures, with modern frontend experience (React, Vue), deployed on AWS using Docker and Kubernetes with strong observability, authentication boundaries, API gateway design, and disciplined production operations, focused on solving system problems rather than chasing specific stacks.

Engineering leadership with hands-on architectural authority across platform design, security posture, reliability engineering, and production systems.

Platform architecture systems APIs and backend engineering Pre-production platform builds Production platform experience

Skills

Compressed view of execution-level capabilities across architecture, implementation, and production operations.

Security and Adversarial Systems

  • API security boundary analysis and access control validation
  • Authentication and authorization design (token-based, session, identity boundaries)
  • Threat modeling and failure-mode analysis under adversarial conditions
  • Detection of automation abuse, fraud patterns, and system manipulation
  • Request validation, input trust boundaries, and exploit surface analysis

Testing and Validation

  • Deterministic system validation and reproducible test execution
  • Black-box testing of APIs and distributed services
  • Concurrency and race-condition validation
  • Failure injection and edge-case scenario testing
  • Evidence capture, diagnostics, and test result traceability

Core Engineering Capabilities

  • Platform and distributed system architecture
  • High-availability and failure-tolerant system design
  • API contract design and service interface definition
  • Production reliability and operational readiness
  • Performance modeling, scaling analysis, and blast-radius control

Implementation and Systems Work

  • Java (Spring Boot, JVM-based backend services)
  • C#/.NET (backend services, platform and enterprise systems)
  • Python (automation, data processing, platform tooling)
  • JavaScript and TypeScript (service integration and control UIs)
  • Backend service implementation for high-volume systems

Platform and Infrastructure

  • Linux-based production systems
  • Containerized deployment using Docker
  • AWS-based cloud infrastructure
  • CI/CD pipelines and release workflows
  • Observability, logging, metrics, and diagnostics

Data and Integration

  • Relational databases and data modeling
  • Analytics instrumentation pipelines
  • Asynchronous and message-based processing
  • Legacy system integration and modernization

Portfolio

Live production systems and pre-production platform architecture work. Many production platforms I have led exist inside closed, authenticated, or contract-restricted environments and cannot be publicly linked.

Not all designed systems are yet implemented or publicly demonstrated; some represent validated architecture and instrumentation work planned for future build-out.

405d Website

Production platform supporting a federal healthcare cybersecurity program, built to meet government security, reliability, and operational compliance requirements. Source code is private due to contract restrictions.

AI RAG Platform System

Reference implementation of a deterministic, citation-constrained retrieval-augmented generation system with in-memory vector indexing, cosine similarity ranking, and browser-visible source verification.

ESP32 Relay Firmware (Waveshare)

The stock Waveshare firmware works for demos, but assumes ideal power delivery, permissive BLE control, and continuous polling loops. Under real relay load this can result in watchdog resets, brownouts, and unauthenticated control paths.

This project is an independent ESP32 firmware implementation focused on authenticated BLE commands, deterministic FreeRTOS task structure, controlled logging, and power-aware behavior on constrained hardware.

Derived from publicly released Waveshare example code and maintained independently as an engineering-focused hardening effort.

Site Uptime Monitor

External uptime monitoring system with stateful alerting and no commercial dependency.

Built on GitHub Actions as a deliberate architectural choice — runs on infrastructure completely independent of the hosting provider. If the host goes down, the monitor still runs. No commercial service dependency means no pricing changes, no vendor risk, and no single point of failure shared with the monitored system.

Implements stateful alerting with state branch persistence, repeat down notifications, single recovery alert, and dual notification delivery via email and ntfy.

API Exploit Validator

Black-box API vulnerability validation framework focused on reproducible exploit verification.

Framework for validating API vulnerabilities including access control failures, parameter tampering, and concurrency issues through deterministic request execution and structured evidence capture.

Designed to model real attack behavior against API surfaces without source access, emphasizing reproducibility, signal quality, and verification of actual exploit conditions.

Initial module development in progress

Platform Framework

Core platform security and integrity layer protecting high-volume transaction systems.

Detection and integrity framework for protecting high-volume transaction platforms against fraud, automation abuse, and system integrity compromise, built to operate under real production constraints and real attacker economics.

Designed to balance technical correctness with practical deployability, accounting for system complexity, operational cost, and real-world adversary capability.

Design includes software-based behavioral pattern modeling, timing analysis, request correlation, identity boundary enforcement, and audit-safe evidence generation.

Detection model design complete Architecture design in progress

In-Product Issue Reporting System

Lightweight, independent issue reporting embedded directly into application error states.

Provides a low-friction mechanism for users to report issues at the moment of failure, capturing relevant execution context, request metadata, and user-supplied detail without redirecting to external ticketing systems.

Designed to preserve system state and failure signals, enabling deterministic reproduction, faster triage, and operationally useful reports during incident response and postmortem analysis.

Design in progress

Document Change Service

Platform service providing authoritative document versioning, audit history, and change traceability for systems that require compliance, accountability, and operational integrity.

Designed around immutable identifiers, complete audit trails, API access, and controlled visibility to support regulatory, security, and operational review.

Design ready

Writing

Technical Writing

Analytical perspectives grounded in real production systems.

Contact

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