Mark Eggensperger, Software Developer in New York, NY, United States
Mark Eggensperger

Software Developer in New York, NY, United States

Member since June 21, 2021
Mark's primary work experience includes being the head of operations and product manager for a tech startup as well as several years of management consulting. He has an industrial engineering degree and an MBA from a top-10 institution. Mark is now pursuing his passion for software engineering and excels at building React-based progressive web applications.
Mark is now available for hire




New York, NY, United States



Preferred Environment

JavaScript, React, Redux, Firebase, Python 3, Cloud Firestore, React Native, Expo, Express.js, SQL

The most amazing...

...skill I have is my background; thanks to a degree in industrial engineering, I bring process design expertise and a keen eye for innovation and brand strategy.


  • Head of Operations

    2018 - 2021
    Nomi Beauty
    • Acted as a product manager for a mobile beauty startup that catered to the travel industry by overseeing product enhancements, defining the roadmap, and ensuring a unified strategy across the executive team.
    • Managed a team of six and oversaw strategy and operations, including program management, human resources, finance, analytics, sales, client relations, customer support, and daily operations.
    • Oversaw the strategic direction of the flagship product to achieve a 42% revenue growth year over year.
    • Wrote out PRDs and teamed up with CTO to ensure all updates met specifications and release deadlines.
    • Discovered that 11% of monthly revenue was lost due to operational errors and implemented standardized process changes to achieve a 57% reduction in lost revenue.
    • Audited accounts receivable and uncovered that 20% annual revenue was outstanding; then coded an invoicing tool for organized and improved process, bringing the A/R balance to less than 1% of annual revenue.
    Technologies: SQL, Excel VBA, Tableau
  • Management Consultant

    2011 - 2018
    Premier, Inc.
    • Generated $29 million in annual savings for a multibillion-dollar health system by developing a VBA-coded tool that allowed the SVP of labor to consistently identify problem areas and focus cost reduction efforts.
    • Led the analytics on a cross-functional consulting team of 20 in the builds of several VBA-based tools.
    • Enhanced several processes through SQL and VBA coding—reducing the time by 80%.
    Technologies: SQL, Excel VBA
  • Data Consultant

    2011 - 2013
    • Maintained relationships with over 85 hospitals (users) on using proprietary productivity software.
    • Enhanced several processes through SQL and VBA coding, creating up to 80% reduction in time.
    • Conducted final software testing to ensure all updates were working from user perspective before roll-out.
    Technologies: Excel VBA, SQL, Excel 2010


  • Ask the Bartender

    I built a progressive web app that hosts a self-made algorithm that determines the best cocktail to recommend to a user based on their response (e.g., they liked it, hated it, or were indifferent) to various flavor tags (e.g., sweet, spicy, and sour).

    The tech stack included JavaScript, Firebase, Express.js, Sequelize, React, Redux, Axios, and SQL.

  • WanderedOff

    WanderedOff allows users to create and invite friends to a session. It has multiple features that help facilitate the sessions, including a real-time location is displayed for all users in the session, the center point moves along with location updates, and the other users in the session are notified when one user falls outside of range.


  • Languages

    JavaScript, SQL, Excel VBA, Python 3
  • Frameworks

    Redux, React Native, Express.js
  • Libraries/APIs

    React, Google Maps API
  • Tools

    Tableau, Expo, Excel 2010
  • Paradigms

    Six Sigma, Behavioral Design, Human-centered Design (HCD)
  • Other

    Lean, Process Flows, Ergonomic Design, Simulations, Operations Research, Entrepreneurship, Innovation, Product Management, Brand Development, Strategy, Statistics, Experimental Design, Sales
  • Platforms

  • Storage

    Cloud Firestore
  • Industry Expertise



  • Master of Business Administration (MBA) Degree in Business Administration
    2015 - 2017
    NYU Stern School of Business - New York, NY, United States
  • Bachelor's Degree in Industrial Engineering
    2006 - 2011
    Montana State University - Bozeman, MT, United States


  • Software Engineering Certification
    Fullstack Academy

To view more profiles

Join Toptal
Share it with others