// Available for part-time and freelance tech work

Senior engineer for practical systems.

I help small teams ship practical software, AI workflows, SaaS features, automation, and infrastructure fixes without needing a full-time hire.

Most useful when the work crosses product code, backend systems, hosting, and real operational constraints.

20+ years across software, infrastructure, and security
0 → 1 SaaS products, internal tools, and training platforms
AI LangChain assistants, OCR workflows, and data-grounded chat
Fractional senior engineer

Part-time product delivery, code review, architecture direction, and execution support for small teams.

Freelance builds

Focused web apps, SaaS features, automation, dashboards, integrations, and internal tools.

Operations cleanup

Hosting, CI/CD, observability, network troubleshooting, AWS deployments, and reliability work.

Current Work

2020 - Present
2025 - Present

ENG Aviation

Senior Software Engineer

Build the AI and operations platform behind a private-aviation SaaS, focused on pilot safety, flight scheduling, and the regulatory workflows that surround them.

  • Built the pilot training and currency system end-to-end. It alerts flight operations when training is due or when pilots need additional flights to stay current, and it shows coordinators which pilots will actually be available, and still qualified, at the time of a planned trip.
  • Built a unified AI assistant on LangChain that powers in-app chat, parses incoming customer emails into bookings, and reads handwritten flight logs from photos.
  • Made the assistant useful on long conversations and grounded it in each customer's own data, so answers stay accurate as conversations grow.
  • Built the export that submits passenger lists for federal TSA security screening and tracks which passengers have been cleared, in the exact file format the TSA portal accepts.
  • Delivered scheduling and pricing features, including drag-and-drop reordering of trip legs and pricing, schedule-conflict detection, and a demo-data system used for sales and conferences.
TypeScriptReactLangChainPostgreSQLAWSAI
2020 - Present

SammyD LLC

Owner and Principal Developer

Independent consultancy delivering custom software and cybersecurity training platforms.

  • Designed and shipped a TEA-compliant cybersecurity curriculum platform delivered to multiple Texas high schools, with interactive content, video integration, and automated assessment.
  • Built browser-accessible cloud lab environments on AWS where students can safely study malware in isolated networks.
  • Created hands-on training environments for threat analysis with strong safety boundaries between students and the systems they study.
  • Contracted with Coherent Cyber to build an e-learning platform for cybersecurity instruction.
SaaSAWScybersecurityeducation

Earlier Experience

1999 - 2025
2023 - 2025
Relevant depth

CBWE Communications

Network Engineer

Operate high-capacity wireless internet infrastructure and build internal tools that keep the network visible and stable.

  • Deploy and maintain long-range wireless links across metropolitan distances, including links operating at up to 6 Gbps.
  • Manage backbone infrastructure with network monitoring, traffic filtering, and security operations against a 99.99% uptime target.
  • Built a full network monitoring system in React, Next.js, and PostgreSQL that surfaces node health and performance metrics, with predictive analytics for early detection of network degradation and service interruptions.
  • Hold current Tower Climber and Rescue certifications for elevated infrastructure maintenance and equipment installations.
networkhostingReactPostgreSQL
2021 - 2023
Relevant depth

Botisimo / OpTic Gaming

Software Engineer

Built the multi-platform streaming, engagement, and aggregated-ad-revenue systems behind Botisimo, a creator tools platform for live streamers that was acquired by OpTic Gaming in 2023.

  • Built the multi-platform streaming engine that let creators broadcast simultaneously to Twitch, YouTube, Facebook, Discord, and Trovo, with a chat relay so viewers on every platform could see and respond to each other in one shared conversation.
  • Built giveaways, raffles, polls, and viewer rewards that worked across every connected platform, plus a rules engine for schedules, timers, auto-bans, and auto-replies, with AI-driven bot responses added as LLMs matured.
  • Built the analytics and ad-targeting work behind an aggregated-audience ad product that pooled viewers across thousands of small streams into a single buy, giving creators who were too small to sell their own ads a real share of ad revenue.
  • Built customer analytics and marketing data pipelines that informed product and growth decisions across the platform.
streamingNode.jsPostgreSQLAWSAIanalytics
2021 - 2023

LakePointe Church

Dallas Pastoral Care

Served patients and families in Dallas hospitals through crisis care, grief support, and spiritual care coordination.

2018 - 2019
Relevant depth

Focus Ministries / GoMethod

Software Engineer

Built mission-trip management software with web tools and document automation that read paperwork into the system automatically.

  • Built a mission-trip management system in Angular and .NET that streamlined the coordination of travel requirements, document tracking, and deadline management for team leaders.
  • Built an automated document processing pipeline in React and .NET that scanned paper forms and used a mix of cloud AI services and human reviewers to digitize and categorize them, dramatically cutting manual data entry.
  • Designed and integrated systems that significantly improved organizational efficiency in managing participant documentation and compliance requirements.
AngularReactC#.NETOCRAI
2015 - 2018
Relevant depth

VoidRay / Vega Studio

Senior Technical Lead

Led teams across pharmacy, security, forensic visualization, retail, and defense-facing software projects.

  • Led development of a pharmacy management system that automated prescription processing, insurance verification, billing, and inventory.
  • Built a vulnerability assessment dashboard for the U.S. Department of Defense to monitor and track software security risks across the organization.
  • Built a geographic threat-intelligence platform for the Department of Defense that used natural-language analysis to map and visualize threats from internet traffic patterns.
  • Built a network traffic visualization tool for AWS environments that helped security teams quickly spot threats and data leakage.
  • Built a forensic analysis tool that used 3D web visualization to surface organizational communication patterns for fraud investigations and risk management.
  • Partnered with Infosight to develop memory-based threat detection software.
  • Designed and built an omnichannel retail platform integrating online and brick-and-mortar inventory management.
  • Established a CI/CD pipeline with automated testing and a structured QA environment, enabling reliable weekly releases.
leadershipDoDsecurityAWSWebGLCI/CD
2014 - 2015

KloudNation

Software Developer

Built large-scale web scraping, vendor analytics, and mobile augmented-reality tools.

2012 - 2014

VoidRay Co

Senior Software Architect

Built SaaS products across healthcare, analytics, e-commerce migration, financial automation, and forensic visualization.

2009 - 2011

Odyssey Communications Group

Software Developer

Built scoreboard, video streaming, data migration, and server stability systems for customer-facing operations.

2009 - 2012

Symfono Corporation

Software Development Lead

Led a small engineering and design team building early mobile augmented-reality apps, iOS prototypes, real-time data streaming, and analytics products.

2008 - 2009

Pursuant Group

Software Developer

Contributed to a flagship interactive web application and helped spread development practices across a large engineering team.

2002 - 2008

United States Air Force

Communications Project Manager

Managed mission-critical communications systems, airfield security, aircraft monitoring, and technical instruction during U.S. Air Force service.

2000 - 2008

Cantex Management

Information Technology Specialist

Administered IT infrastructure, surveillance systems, and training tools across multi-state retail operations.

1999 - 2000

Nortel Networks

Training and Documentation Intern

Automated document conversion, built internal tools, and supported print and help-desk operations.