Christopher Czerwinski

FAST Enterprises · Sacramento, CA / Denver, CO

• Translate business needs from product managers into actionable technical tasks
• Lead daily client meetings to gather requirements and propose solutions for change requests and patches
• Present front-end demos to government clients and back-end architecture reviews to project leadership
• Triage work across the team, manage deadlines, and align goals with project targets
• Review pull requests to ensure high-quality, readable, maintainable code
• Mentor new hires and interns on development best practices and client interaction
• Conduct technical interviews assessing OOP, SQL, and problem-solving ability
• Run regular 1:1s to deliver performance feedback and coaching

FAST Enterprises · Sacramento, CA / Denver, CO

• Built a discovery process comparing IRS and state return data to auto-generate amended returns for ~20,000 eligible taxpayers — returning over $8M to taxpayers
• Identified and resolved inconsistencies in incoming data from external agencies

FAST Enterprises · Sacramento, CA / Denver, CO

• Refined code, queries, and database indexing to cut nightly batch runtime by ~10% per day
• Optimized and maintained backend web payment and return portals (C#/.NET, MS SQL) serving millions of taxpayers with a focus on stability, performance, and security

UD Society of Automotive Engineers — Aero Design · Newark, DE

• Selected hardware, programmed in C, and designed the wiring diagram and PCB for the team's onboard data acquisition system (DAS) for a competition aircraft

Siemens Healthineers · Newark, DE

• Built Excel workbooks and scripts to derive quality control limits for robotic components and sensors

University of Delaware Robotics and Controls Lab · Newark, DE

• Researched the multi-robot coverage problem using C++, ROS, and Gazebo