Thomas (Tommy) Trzebiatowski

Senior Software Engineer

tomtrezb2003@gmail.com(715) 321-1583
Stevens Point, Wisconsin
@grezxune

Professional Summary

Senior Software Engineer with 10+ years of experience building scalable web applications and GraphQL APIs. Proven track record of leading development teams, architecting microservices, and delivering high-performance solutions for companies ranging from startups to Fortune 500 enterprises. Passionate about creating accessible, user-focused digital experiences.

Professional Experience

Senior Software Engineer

Marriott International

Jan 2024 - Present
Remote / Global
  • • Designed subgraph contracts and supported channels in integrating them.
  • • Lead development on scalable GraphQL operations supporting reservation and loyalty systems (SPOG, ARA, and QRV).

Senior Software Engineer

Swoop Connect

Mar 2023 - Dec 2023
Stevens Point, Wisconsin
  • • Built React Native (Expo) features with Apollo GraphQL.
  • • Operated as sole engineer in a fast-paced startup; shipped to iOS and Google Play.
  • • Implemented CI/CD (Bitbucket, EAS), automated GraphQL operations.

Software Engineer

American Poolplayers Association

Apr 2018 - Mar 2023
Stevens Point, Wisconsin
  • • Engineered a scalable GraphQL API for 250k+ users across multiple apps.
  • • Built a React Native app supporting tens of thousands of concurrent users.
  • • Developed a React app for the player base and 300+ franchise owners.

Programmer/Analyst

MCIS (Marshfield Clinic Information Services)

Feb 2016 - Apr 2018
Marshfield, Wisconsin
  • • Developed Electronic Health Record (EHR) product using WPF.
  • • Built internal tools to streamline repetitive testing for EHR.

Software Engineer

Skyward

Jun 2014 - Feb 2016
Stevens Point, Wisconsin
  • • Built finance software for the new Skyward suite using C# .NET and T-SQL.
  • • Delivered software on a two-week agile sprint cadence.

.NET Developer Intern

Reinhart Foodservice

May 2013 - May 2014
La Crosse, Wisconsin
  • • Engineered internal systems using JavaScript, jQuery, HTML, and CSS.

Technical Skills

Core Technologies

TypeScript/JavaScriptReact & React Native (Expo)GraphQL & REST APIsSQL, Neo4j (Graph DB)AWSDockerGitVimAtlassian (Jira, Confluence)

Areas of Interest

GolangZigPythonPool/BilliardsReading/Self Development

Notable Projects

GetMovin.health

Founder & Developer

  • • Health & wellness platform for organizations to run walking/running challenges.
  • • T3 stack (Next.js, tRPC, Drizzle ORM, NextAuth) on Neon PostgreSQL.
  • • Event creation, participant tracking, leaderboards, community health features.
Next.jsT3tRPCDrizzleNextAuthAWS RDSPostgreSQL

PlayFree

Founder & Developer

  • • Web app listing locations for free games (pool, darts, etc.); user-contributed data.
  • • Built with Next.js and Firebase (evolved tech over project lifetime).
Next.jsFirebase

Sizably

Founder & Developer

  • • Profiles for personal sizes (ring, shoe, etc.) with social-style sharing.
  • • React + Firebase auth and data storage.
ReactFirebase

Education

Bachelor of Science

Computer Science and Mathematics

University of Wisconsin–La Crosse (UW System)

Jan 2012 - Dec 2015
La Crosse, Wisconsin

Community Involvement

Steps & Strides Inc.

Jan 2020 - Present
Stevens Point, Wisconsin
  • • Built the original website (Gatsby on Netlify).
  • • Provide ongoing technical support as the event has grown >50% YoY.

Portage County CAN

Jan 2018 - Dec 2020
Stevens Point, Wisconsin
  • • Maintained and improved their WordPress website.

Stevens Point Area Run Club (SPARC)

Jan 2019 - Dec 2021
Stevens Point, Wisconsin
  • • Built a real-time mile tracker (React + Firebase) for the annual run-club competition.
  • • Thousands of miles recorded through the tool.