Senior Frontend Software Engineer
ABOUT THE COMPANY
America is under sustained cyber attack. Our adversaries infiltrate our networks, steal our IP, and degrade the digital infrastructure that modern life runs on. They’ve learned—correctly—that those attacks rarely produce consequences.
Twenty was founded to change that, by making our adversaries think twice before they attack us. Our vision is American and allied primacy in cyberspace—a future where they cannot contest us, deterrence is assured, and the free world remains secure.
Founded in 2024, Twenty Technologies (www.twenty.io http://www.twenty.io) industrializes offensive cyber operations for the U.S. and its allies. Headquartered in Arlington, Virginia, Twenty has raised $138M from Accel, Caffeinated Capital, Friends & Family Capital, Point72 Ventures, General Catalyst, and In-Q-Tel.
THE ROLE
You'll be a high-output engineer building mission-critical operator experiences — implementing complex, high-performance interfaces that visualize real-time cyber operation data with speed and precision. You'll contribute meaningfully to frontend architecture and design decisions, own significant features end-to-end, and raise the quality of the codebase around you. You'll work closely with other frontend engineers and cross-functional partners across backend, product, design, and operations to ship capabilities that must work reliably in both cloud and on-premises environments.
WHO YOU ARE
- You care about building software that has real-world impact in high-stakes environments.
- You write clean, precise, and well-tested code and hold yourself to that standard without being asked.
- You think carefully about performance, reliability, accessibility, and maintainability as you build.
- You make sound tradeoffs under constraints and communicate them clearly to teammates.
- You're drawn to complex data problems and enjoy turning them into interfaces that help users act quickly.
- You take ownership of your work end-to-end — from ...