Zach Balder


Backend software engineer interested in designing applications and building web infrastructure with availability, scalability, and flexibility in mind.

Technical Skills

LanguagesJavaScript, Python, Go, Bash
FrameworksFastify, Vue, Nuxt, Express, React
DatabasesMongoDB, Redis, DynamoDB, SQLite+Sequelize
Cloud/CDNAWS, Vultr, Linode, Netlify, Vercel
AWSCloudFront, EC2, ELB/ALB, Lambda, S3
ProxiesBurp, HAProxy, HTTP/S, SOCKS+SSH
VPNsWireGuard, OpenVPN, Perimeter 81

Work Experience

Gatherly, Senior Software engineer

Nov 2020 - Aug 2021

Tech: Node+npm, git+GitHub, TypeScript, DynamoDB, React

  • Contributed code and PR review on spatial video-chat app
  • Added logging via Slack webhooks to lower response times
  • Secured cloud resources with VPN in preparation for audit
  • Led frontend migration to CDN to improve performance & UX
  • Automated release process and feature branch deployment
  • Constructed staging environment to QA before production

Starry, Software engineer

Jun 2018 - Feb 2020

Tech: Node+npm, git+GitHub, Docker+Compose, MongoDB, Vue

  • Contributed code and PR review on several projects
  • Built library to make encryption easier for team
  • Created SNMP service to configure field hardware
  • Wrote full-coverage tests and made infra design decisions


Northwestern University

Sep 2013 - Jun 2016

Bug Bounty

  • Jul 2020: $2K for bug on Robinhood's HackerOne
  • Apr 2020: $750 for bug on Robinhood's HackerOne
  • Mar 2020: $150 for bug on Glassdoor's HackerOne


  • Web applications
  • Computer networking
  • Distributed systems
  • Cyber Security
  • Singing / keyboard / saxophone
  • Twin Peaks, Midnight Gospel