Software Engineer · Atlanta area

Building the front door to products people trust.

I’m Giselle, a front-end engineer with nine years of experience. I design and ship secure, intuitive login and authentication experiences, from passkeys to biometrics.

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Good login is invisible. Getting there is the hard part.

I’ve spent my career building user-facing applications, from self-checkout at The Home Depot to security tooling at BetterCloud, and now the authentication journeys at FanDuel, where every sign-in has to be fast, safe and frictionless.

I’m drawn to complex problems with real human stakes: tracing a drop-off to its root cause, rethinking a two-factor flow, or rallying product, design, analytics and native teams around biometric adoption. My Master’s in HCI from Georgia Tech shapes how I weigh every decision.

I care about the team as much as the code: thoughtful reviews, design docs, mentorship and leaving the codebase better than I found it.

9+
years shipping production UI
50%
pre-fill success improvement
~30K
lines of dead code removed

A decade of building for real users.

  1. Software Engineer III · FanDuel

    Feb 2024 – Present

    Authentication & login experiences

    • Contributed to passkey implementation and improved two-factor authentication flows.
    • Led cross-functional initiatives with product, design, analytics and native engineering to drive biometric adoption.
    • Helped rebrand login journeys across the U.S. and Canada, lifting login conversion by 1%.
    • Improved pre-fill success by 50% through root cause analysis in Datadog.
    • Removed ~30K lines of dead code, authored design docs and strengthened testing practices.
    • Expanded full-stack contributions by building backend API endpoints and service-to-service functionality for frontend authentication features.
    • Supported team growth through onboarding, code reviews, pair programming and the McKinsey Leadership Academy.

  2. Software Engineer III · BetterCloud

    Aug 2022 – Jan 2024
    • Maintained ~95% test coverage with Jest, React Testing Library and Enzyme.
    • Instrumented Amplitude and Appcues so data teams could analyze the customer journey.
    • Built features with React, Headless UI and Tailwind CSS to help customers secure assets efficiently.
    • Led through code reviews, knowledge shares, pair programming and mentorship.

  3. Software Engineer II · BetterCloud

    May 2020 – Aug 2022
    • Partnered with product managers and designers to turn concepts into production features.
    • Monitored GCP logs during on-call rotation.

  4. Software Engineer · The Home Depot

    Feb 2017 – May 2020
    • Built fast, reliable self-checkout experiences with React and Material UI.
    • Ensured coverage with Jest, Cucumber and WebdriverIO.
    • Recruited and mentored interns, and represented the company at hackathons.

Things I’ve built on the side.

  • Sscreenshot placeholder

    Spotify Profile

    A web app to view your top songs, artists and podcasts in a clean, data-forward interface.

    • React
    • Spotify API
    • Styled Components
    CodeLive demo
  • Mscreenshot placeholder

    Mousai

    Visualize your favorite artists’ collaborations as an interactive network of music connections.

    • React
    • D3
    • Spotify API
    CodeLive demo
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    gisellep.com

    My personal website, built with Gatsby and deployed on Vercel.

    • Next.js
    • TypeScript
    • Vercel
    • CSS Modules
    CodeLive demo

Tools I reach for.

Frontend

  • React
  • Redux
  • Sagas
  • JavaScript
  • TypeScript
  • HTML
  • CSS
  • Tailwind

Testing

  • Jest
  • React Testing Library
  • Enzyme
  • Cucumber
  • WebdriverIO

Tools & Platforms

  • Datadog
  • Amplitude
  • GCP
  • Git
  • GitHub
  • Vercel

Specialties

  • Authentication
  • Passkeys
  • Biometrics
  • Two-Factor Auth
  • Java
  • Python
  • M.S. Computer Science (HCI), Georgia Institute of Technology
  • B.S. Computer Science, Florida International University

Let’s build something worth signing in to.

Open to new opportunities, interesting problems and good conversations about auth, UX and frontend craft. My inbox is always open.