Fractional Principal Engineer

40 hours of productivity in 20 hours per week

Full-stack engineering leader with 17 years of experience specializing in AI, security, performance optimization, and scalable architecture. 3.5 years of fractional consulting experience helping startups scale efficiently and generate millions in revenue.

PK

About Me

17 Years of Engineering Excellence

With 17 years of software engineering experience and 3.5 years of specialized fractional consulting, I have a proven track record of leading teams that generate millions in revenue. I specialize in high-impact AI/security initiatives, performance optimization, and engineering leadership. From eliminating outages to scaling systems to millions of requests, I deliver transformational results efficiently.

🚀 Performance Expert

Eliminated outages and scaled systems to millions of requests per minute

👥 Team Leadership

Led teams of up to 25 developers delivering revenue-generating initiatives

⚡ Rapid Execution

Fast ramp-up, context switching, and efficient async collaboration

17
Years Experience
20hr
Weekly Commitment
>700 Million
Revenue Generated

Core Services

🤖

AI/ML & Security

Build intelligent systems with LangGraph agents and advanced security implementations. From conversational AI to threat modeling.

  • LangGraph & multi-agent systems
  • ML-powered optimization (ML.NET)
  • AI-powered SAST & threat modeling
  • OAuth 2.0 & Identity Server
🚀

Performance & Scalability

Proven track record of eliminating outages and scaling systems to millions of requests. Expert in chaos engineering, load testing, and defensive coding.

  • Zero-downtime reliability initiatives
  • Scaling to millions of requests/minute
  • Performance tuning & optimization
  • Chaos engineering & load testing
👥

Engineering Leadership

Led teams of up to 25 developers generating millions in revenue. Expert in team restructuring, process improvement, and cross-functional collaboration.

  • Team leadership (up to 25 developers)
  • Revenue-generating initiatives
  • Process optimization & DevOps
  • Cross-functional collaboration
🏗️

Architecture & Migration

Modernize legacy systems and build scalable platforms. Expert in cloud migrations, API design, and system architecture.

  • Legacy system modernization
  • Cloud platform migrations
  • RESTful API design
  • Microservices architecture

Featured Projects

AI SAST Platform

Current

Lead developer for AI-powered Static Application Security Testing tool. Built multiple LangGraph agents that analyze code and build comprehensive threat models to discover vulnerabilities that traditional SAST tools miss.

Python LangGraph AWS Lambda Pinecone Golang
Impact: Advanced threat detection beyond traditional SAST capabilities

LLM Commerce Chatbot

2023

Built and deployed multi-agent LLM chatbot using Elasticsearch vector store and internal API integration. Provides highly personalized cannabis strain recommendations based on user preferences and conversations.

LangGraph Elasticsearch Multi-agent REST APIs
Result: 30% increase in conversion rates

ML-Powered Load Optimization

2019

Built machine learning system to optimize trucking capacity allocation and route planning. Created intelligent matching algorithm between available truck capacity and freight loads.

ML.NET C# Azure ML SQL Server
Impact: Significantly improved logistics efficiency and cost optimization

Zero Downtime Reliability Initiative

2023

Led company-wide performance and reliability initiative using chaos engineering, load testing, and defensive coding. Implemented async work optimization, improved Elasticsearch queries, enhanced autoscaling, and proactive DataDog alerting.

Ruby on Rails Sidekiq Elasticsearch Redis DataDog
Result: Eliminated outages completely - 9 months zero downtime (from 2/month average)

Million Request Scalability

2018-2019

Solved critical scalability bottlenecks in partner integration system. Implemented targeted async migrations and queue-based architecture to handle massive data volumes from logistics partners.

Azure Service Bus Azure Functions RabbitMQ Redis .NET
Result: Scaled to millions of requests per minute

AS400 Legacy Migration

2019-2021

Led enterprise-wide migration from legacy AS400 mainframe to modern SQL Server infrastructure. Implemented strategic API abstraction layer enabling zero-downtime data source transitions.

AS400 SQL Server RESTful APIs .NET Core Azure
Impact: Modernized critical enterprise infrastructure with zero business disruption

Technical Skills

AI & ML

LangChain LangGraph Pinecone Redis Vector OpenSearch LUIS Bot Framework

Languages & Frameworks

Python C# TypeScript JavaScript React React Native .NET Core

Cloud & DevOps

AWS Azure GCP Docker Argo Rollouts Lambda

Security

SAST Snyk Semgrep Threat Modeling Code Reviews Okta SSO

Databases

PostgreSQL SQL Server Cosmos DB Elasticsearch Redis

Get In Touch

Let's Work Together

Ready to accelerate your engineering initiatives? I'm available for fractional consulting at 15-20 hours per week, delivering exceptional value through performance optimization, team leadership, and scalable architecture.

📍 San Diego, CA

Availability

Fractional Consulting: 15-20 hours/week

Response Time: Within 24 hours

Time Zone: Pacific (PST/PDT)