Fomo Labs

Staff Security Engineer, Application Security

New York City. Posted a month ago

The role

You will own and elevate the application security program. You will work with the engineering team to find and fix vulnerabilities, build scaling security tooling, and shape security at the architecture and code level.

What you will do

  • Lead security architecture reviews and threat modeling for new features and major system changes
  • Own the secure SDLC program including SAST/DAST, SCA, secrets scanning, and CI/CD security gates
  • Perform deep-dive code reviews and manual penetration testing of high-risk services, APIs, and web applications
  • Design and build internal security tooling and guardrails
  • Run and mature the vulnerability management program
  • Manage relationships with external pentest vendors and bug bounty programs
  • Set technical direction on authentication, authorization, API security, and data protection patterns
  • Mentor engineers on secure coding practices
  • Contribute to incident response for application-layer issues
  • Help define and evolve the AppSec roadmap and metrics

Required qualifications

  • 7+ years in security engineering with a substantial and recent focus on application security
  • Deep hands-on experience with secure code review, threat modeling, and common vulnerability classes
  • Strong software engineering background
  • Experience building and scaling AppSec tooling and processes at a growing company
  • Track record of driving security into engineering culture through influence
  • Familiarity with cloud-native environments (AWS/GCP/Azure), container security, and modern API architectures
  • Excellent communication skills
  • Prior experience as a technical lead or staff-level IC who can operate with high autonomy

Nice to have

  • Experience with bug bounty program management
  • Background in a high-growth consumer or marketplace product

Benefits

  • Competitive cash compensation and equity
  • Comprehensive health insurance including medical, dental, and vision for you and your dependents
  • Tax savings benefits such as HSAs and FSAs
  • 401(k) with match
  • Group term life insurance
  • Flexible time off
  • Annual company offsites

About the company

fomo is a trading app for the rest of us. It has onboarded over 3.4 million users and has made over $100M of revenue since launching in May 2025.