Staff Software Engineer, Full-Stack

Faeth Therapeutics is a clinical-stage oncology company listed on Nasdaq that recently raised $200M in funding. With a strong scientific foundation and a founding team that includes the discoverer of our target pathway, we are advancing PIKTOR, a multi-node PI3K/AKT/mTOR inhibitor program, toward multiple near-term milestones. We are a small, focused team where every person has direct impact — united by a shared commitment to care deeply, create boldly, and never stop learning.

We're looking for a Staff Software Engineer to help shape the architecture and technical direction of our core platform. The product is already in motion, and we need someone who can step in, assess what exists, strengthen the foundation, and drive it forward with the quality, security, and performance it demands.

We’re a small, fully remote engineering team (under 20) moving fast. You’ll play a central role in technical decision-making and work alongside experienced engineers to raise the bar across the system. Security and performance aren’t afterthoughts here; they’re core design constraints, and we need someone who treats them that way.

This is an early-stage company. That means you’ll wear many hats. Some weeks you’ll be deep in architecture decisions; other weeks you’ll be debugging a deployment pipeline, reviewing a junior engineer’s PR, or jumping into a customer escalation. If you need tightly defined boundaries, this isn’t