# Mark Pieciak > Software Engineer @ Volvo Car USA Location: Hazlet, New Jersey, United States Profile: https://flows.cv/markpieciak Current software engineer, experienced in Node.js, TypeScript, and React. Former strength coach & marketing specialist. Raising a family and toeing the line between deadlifts & back pain in my spare time. ## Work Experience ### Software Engineer @ Volvo Car USA Jan 2024 – Present | Mahwah, NJ • Documented steps to run & support a deprecated .NET Core 3.1 app in MacOS, while later leveraging CoPilot & Cursor AI tools to perform an upgrade to .NET 8 and develop API endpoints with no prior experience in C#. • Avoided massive regulatory fines by creating scripts JavaScript & Node.js to migrate legacy recalls data into a • new CMS and rebuilding the customer-facing Recalls app on a new REST API using Next.js, React, and TypeScript. • Improved the UX of the US Offers Next.js app, fixing numerous Lighthouse report issues and increasing the Summer 2024 JD Power MWES score from rock-bottom to above-average. • Contributed to the Offers app rewrite by creating the architecture docs and the underlying server side features. • Launched US order page incentives with Next.js & GraphQL, collaborating with teams in Sweden over multiple sprints. • Performed the first Jest to Vitest migration in the Mahwah Tech Hub and demoed the process to fellow engineers. • Participated in on-call rotations, diagnosing off-hours outages & bugs using Elastic Observability’s logging. ### Software Engineer @ Data Fleet Jan 2022 – Jan 2024 | New York City Metropolitan Area • Trailblazed in the first 30 days by rewriting the demo app from Angular to React and helping hire two other engineers. • Developed UI features with React, Zustand, & JavaScript for 20+ clients to manage 500,000+ assets across the US. • Onboarded new clients by creating scripts written in JavaScript and Python to import 3rd party data into Google Cloud. • Eliminated 90% of crash reports by offloading intensive operations to serverless Google Cloud Functions in Node.js. • Closed a 6-figure contract with a national pharmacy chain by prototyping an AI cost prediction tool in Node.js and OpenAI that visualizes data in React and Chart.js, using ChatGPT to expedite the development process. • Refactored a core feature using DRY and SRP patterns, removing 1000+ lines of code and greatly improving readability. • Contributed to endpoints and logic for a new RESTful API using Node.js, Express, TypeScript, PostgreSQL, and Prisma. ### Strength Coach / Marketing Specialist @ GameChanger Fitness Jan 2016 – Jan 2021 | Springfield, NJ • Owned the WordPress platform (PHP, JavaScript, HTML, CSS), saving $60,000 in consultants by handling theme customization, plugin configuration, and Facebook Pixel & Google Analytics integrations. • Oversaw all of marketing, achieving a 96% monthly customer-retention rate and doubling the clients at HQ. • Provided individual and group fitness instruction and planned workout classes for up to 60 clients per shift. ### Personal Trainer & Health Writer @ M Pieciak LLC Jan 2014 – Jan 2015 | Linden, NJ • Researched an orthopedic condition, authored a self-help guide, and sold it through a self-hosted website. • Grew clientele by networking with other small businesses and participating in local community events. • Helped clients achieve fitness goals through exercise, nutritional coaching, and accountability check-ins. ### Strength & Conditioning Intern @ Newell Strength Jan 2013 – Jan 2014 | Hillsborough, New Jersey, United States ## Education ### BSBA in Computer Information Systems Thomas Edison State University ## Contact & Social - LinkedIn: https://linkedin.com/in/pieciak --- Source: https://flows.cv/markpieciak JSON Resume: https://flows.cv/markpieciak/resume.json Last updated: 2026-04-13