{
  "basics": {
    "name": "Spencer Kittleson",
    "label": "Senior Full Stack Engineer & Technical Lead",
    "image": "https://avatars.githubusercontent.com/u/1360499?v=4",
    "email": "spencer@docodethatmatters.com",
    "phone": "",
    "url": "https://docodethatmatters.com",
    "summary": "Senior full-stack engineer and technical lead with 8+ years of experience building and scaling enterprise SaaS platforms. Deep expertise in .NET migrations, observability (OpenTelemetry), authentication/authorization, and AI/ML integration. Proven track record of 1,650+ commits, 672 merged PRs, and 1,701+ code reviews at MindTouch/NICE. Passionate about developer tooling, IoT/embedded systems, and mentoring teams.",
    "location": {
      "address": "",
      "postalCode": "",
      "city": "San Diego",
      "countryCode": "US",
      "region": "California"
    },
    "profiles": [
      {
        "network": "GitHub",
        "username": "skittleson",
        "url": "https://github.com/skittleson"
      },
      {
        "network": "Twitter",
        "username": "skittleson",
        "url": "https://twitter.com/skittleson"
      }
    ]
  },
  "work": [
    {
      "name": "NICE CXone Expert (formerly MindTouch)",
      "position": "Senior Full Stack Engineer & Technical Lead",
      "url": "https://www.nicecxone.com",
      "startDate": "2019-01-01",
      "endDate": "",
      "summary": "Leading platform engineering for NICE CXone Expert, a large-scale SaaS knowledge management platform serving enterprise customers worldwide. Lead .NET migrations, OpenTelemetry observability integration, authentication/authorization systems, and AI/ML developer enablement across a distributed team. Manage and mentor developers while driving architectural decisions across .NET/C# backend, TypeScript/JavaScript frontend, and AWS infrastructure.",
      "highlights": [
        "Led multi-year .NET migration from Mono to .NET 8 targeting .NET 10, modernizing the entire stack",
        "Architected and implemented OpenTelemetry observability across the monolith — instrumenting 80% of critical components with distributed tracing, metrics, and structured logging using Grafana and OpenObserve",
        "Led design and development of Unified Knowledge Service (UKS), a federated knowledge platform with multi-tenant SSO and Cognigy integration",
        "Redesigned authentication/authorization enablement — built self-service SSO setup, and consolidated legacy auth patterns",
        "Responded to and documented security incidents including an authentication bypass in the legacy API",
        "Migrated LambdaSharp infrastructure to AWS CDK for improved deployment reliability",
        "Led RDS encryption rollout across production databases",
        "Built developer tooling enforcing local test execution before PR submission",
        "Mentored and managed a distributed developer team of 10-12 engineers across multiple time zones",
        "Built AI-assisted technical documentation pipeline using LLMs for gap analysis and content generation",
        "Created internal reference architectures and architectural decision records (ADRs) for AWS services, microservices, and authentication patterns",
        "Drove developer productivity improvements — reported measurable error reduction from AI code reviewer integration in CI/CD",
        "1,650+ commits, 672 merged PRs, 1,701+ PRs reviewed across 8 years on the MindTouch/Deki monorepo",
        "Built and maintained LambdaSharp Tool (dotnet 8) for AWS Lambda deployment and management"
      ]
    }
  ],
  "volunteer": [
    {
      "name": "Home Automation Community",
      "position": "Presenter & Knowledge Sharing",
      "url": "",
      "startDate": "2018-01-01",
      "endDate": "",
      "summary": "Shared expertise in home automation through community presentations and public talks, covering MQTT infrastructure, ESP32/ESP8266 embedded systems, and long-term IoT deployment strategies.",
      "highlights": [
        "Delivered multi-part presentation series on home automation, lessons learned, and IoT architecture",
        "Shared technical write-ups on MQTT broker design, ESP32 firmware development, and network-isolated IoT deployments"
      ]
    }
  ],
  "education": [],
  "awards": [],
  "certificates": [],
  "publications": [],
  "skills": [
    {
      "name": ".NET Technologies",
      "level": "Expert",
      "keywords": [
        "C#",
        "ASP.NET",
        "ASP.NET Core",
        "Entity Framework",
        "WASM",
        "xUnit",
        "nUnit"
      ]
    },
    {
      "name": "Programming Languages",
      "level": "Expert",
      "keywords": [
        "C#",
        "Python",
        "TypeScript",
        "JavaScript",
        "C",
        "C++",
        "PHP",
        "SQL",
        "Shell Scripting",
        "Rust"
      ]
    },
    {
      "name": "Database Design",
      "level": "Expert",
      "keywords": [
        "SQL",
        "PostgreSQL",
        "SQL Server",
        "MySQL",
        "DynamoDB",
        "Redis",
        "Database Optimization",
        "Table Overflow Mitigation"
      ]
    },
    {
      "name": "Web Development",
      "level": "Expert",
      "keywords": [
        "HTML",
        "CSS",
        "JavaScript",
        "TypeScript",
        "Astro",
        "Tailwind CSS",
        "React",
        "Vue.js",
        "PWA"
      ]
    },
    {
      "name": "Cloud & DevOps",
      "level": "Expert",
      "keywords": [
        "AWS",
        "Docker",
        "Kubernetes",
        "CI/CD",
        "Jenkins",
        "Serverless",
        "Terraform",
        "AWS CDK",
        "Lambda",
        "CloudFormation",
        "Shell Scripting",
        "Tailscale"
      ]
    },
    {
      "name": "Observability & Monitoring",
      "level": "Advanced",
      "keywords": [
        "OpenTelemetry",
        "Grafana",
        "Tempo",
        "Prometheus",
        "Loki",
        "OpenObserve",
        "Distributed Tracing"
      ]
    },
    {
      "name": "IoT & Embedded Systems",
      "level": "Expert",
      "keywords": [
        "Raspberry Pi",
        "ESP32",
        "ESP8266",
        "MQTT",
        "Arduino",
        "MicroPython",
        "Tasmota",
        "OTA Updates"
      ]
    },
    {
      "name": "AI/ML",
      "level": "Advanced",
      "keywords": [
        "OpenAI Whisper",
        "Piper TTS",
        "Ollama",
        "AWS Bedrock",
        "LLM Integration",
        "ChromaDB",
        "Gemini",
        "AI Developer Tooling",
        "Llama cpp"
      ]
    },
    {
      "name": "Authentication & Security",
      "level": "Advanced",
      "keywords": [
        "OAuth 2.0",
        "SAML",
        "SSO",
        "SCIM",
        "Keycloak",
        "Authentik",
        "Cognito",
        "Service Tokens",
        "Security Incident Response"
      ]
    }
  ],
  "languages": [
    {
      "language": "English",
      "fluency": "Native speaker"
    }
  ],
  "interests": [
    {
      "name": "3D Printing",
      "keywords": [
        "CAD",
        "CNC"
      ]
    },
    {
      "name": "Embedded Systems & IoT",
      "keywords": [
        "ESP32",
        "ESP8266",
        "MQTT",
        "Raspberry Pi",
        "Custom Firmware"
      ]
    },
    {
      "name": "Home Automation",
      "keywords": [
        "Smart Home",
        "IoT",
        "10+ Year MQTT Deployment"
      ]
    },
    {
      "name": "Hackathons",
      "keywords": [
        "Organizing",
        "Hosting",
        "Attending"
      ]
    }
  ],
  "references": [],
  "projects": [
    {
      "name": "ESP-TypeScript",
      "startDate": "2022-03-01",
      "endDate": "",
      "description": "Transpile TypeScript to Espruino JavaScript for ESP8266/ESP32 microcontrollers — enabling safe, maintainable, testable IoT firmware development.",
      "highlights": [
        "164 GitHub stars — most starred personal repository",
        "Bridges TypeScript type safety to bare-metal ESP8266/ESP32 via Espruino transpilation",
        "Enables full TypeScript features (interfaces, generics, async/await) on $5 microcontrollers",
        "Template project for writing production-grade, type-checked embedded firmware"
      ],
      "url": "https://github.com/skittleson/ESP-TypeScript"
    },
    {
      "name": "bluetooth-wos",
      "startDate": "2024-09-01",
      "endDate": "",
      "description": "Bluetooth Wall of Sheep — terminal-based Bluetooth Low Energy hacking and monitoring tool for discovering, scanning, and interacting with BLE devices.",
      "highlights": [
        "15 GitHub stars",
        "Built with Python for BLE scanning, device discovery, and protocol analysis",
        "Terminal-based interface for real-time Bluetooth traffic monitoring",
        "Supports hacking and reverse-engineering of BLE protocols"
      ],
      "url": "https://github.com/skittleson/bluetooth-wos"
    },
    {
      "name": "mqtt_broker_esp",
      "startDate": "2026-04-28",
      "endDate": "",
      "description": "Standalone MQTT 3.1.1 broker built from scratch in C for ESP32-S3 — designed for 10-year deployment on $10 silicon with no external dependencies, no cloud, no broker library.",
      "highlights": [
        "9 GitHub stars",
        "~2,800 lines of custom C against lwIP BSD sockets handling CONNECT/SUBSCRIBE/PUBLISH/QoS 0+1/retained/wildcards/$SYS",
        "Supports up to 100 concurrent clients on 8MB chip with PSRAM for retained store and in-flight tables",
        "129 pytest assertions running against live ESP32 hardware on every release",
        "Built-in Tasmota-style scheduled publishes, Berry scripting VM, SNTPv4 server, OTA with dual partitions",
        "Featured on Hacker News with detailed technical discussion"
      ],
      "url": "https://github.com/skittleson/mqtt_broker_esp"
    },
    {
      "name": "jarvis",
      "startDate": "2024-06-01",
      "endDate": "2024-12-01",
      "description": "Local-first AI voice assistant using Piper TTS, OpenAI Whisper, and Ollama for on-device speech-to-text, LLM reasoning, and text-to-speech.",
      "highlights": [
        "5 GitHub stars",
        "Fully local pipeline: Whisper for STT, Ollama for LLM, Piper for TTS — no cloud dependencies",
        "Demonstrated viable local voice assistant architecture on commodity hardware"
      ],
      "url": "https://github.com/skittleson/jarvis"
    },
    {
      "name": "esp32-watch",
      "startDate": "2026-04-01",
      "endDate": "",
      "description": "ESP32-S3 smartwatch firmware with MicroPython/LVGL UI and BLE companion PWA — a full custom watch firmware stack.",
      "highlights": [
        "Custom firmware using MicroPython and LVGL for rich graphical UI",
        "BLE companion PWA for configuration and data sync",
        "End-to-end embedded product: hardware, firmware, and web companion"
      ],
      "url": "https://github.com/skittleson/esp32-watch"
    },
    {
      "name": "Do Code That Matters",
      "startDate": "2024-01-01",
      "endDate": "",
      "description": "Personal blog about software development, 3D printing, DIY, dotnet, raspberry pis, and C#.",
      "highlights": [
        "Built with Astro, Tailwind CSS, and TypeScript",
        "3 GitHub stars"
      ],
      "url": "https://docodethatmatters.com"
    },
    {
      "name": "GcodeController",
      "startDate": "2022-01-01",
      "endDate": "",
      "description": "C# application to manage and control sending G-code to serial CNC/3D printing devices.",
      "highlights": [
        "7 GitHub stars",
        "Built with C# and .NET for serial communication with CNC/3D printers",
        "G-code parsing, queuing, and real-time device control"
      ],
      "url": "https://github.com/skittleson/GcodeController"
    },
    {
      "name": "whisper-note",
      "startDate": "2024-11-01",
      "endDate": "",
      "description": "CLI dictation tool powered by OpenAI Whisper for fast voice-to-text note-taking.",
      "highlights": [
        "2 GitHub stars",
        "Python CLI leveraging Whisper for real-time speech-to-text",
        "Quick note capture via voice input"
      ],
      "url": "https://github.com/skittleson/whisper-note"
    },
    
    {
      "name": "udp-to-websocket",
      "startDate": "2020-01-01",
      "endDate": "",
      "description": "Bridge that forwards UDP server traffic to WebSocket connections for real-time web integration.",
      "highlights": [
        "2 GitHub stars",
        "Enables UDP protocol data to be consumed by web browsers via WebSocket",
        "Useful for integrating legacy UDP systems with modern web frontends"
      ],
      "url": "https://github.com/skittleson/udp-to-websocket"
    }
  ]
}