Staff Software Engineer, Full-Stack

The role

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.

What you will do

Own and evolve the architecture. Assess the current system, identify what needs to change, and drive the platform’s technical direction - data layer, API surface, frontend application, and deployment infrastructure.
Build across the stack. Write production code daily in React, Node/NestJS, and PostgreSQL on AWS. You’re not directing from the sidelines; you’re in the codebase.
Design for multi-tenancy at scale. Solve hard problems around tenant isolation, data partitioning, role-based access, and per-tenant configuration.
Make security non-negotiable. Bake security into everything - authentication, authorization, data encryption, input validation, API hardening, and compliance readiness. Security isn’t a phase; it’s a design constraint.
Obsess over performance. Profile, benchmark, and optimize across the stack - from database query plans and caching strategies to frontend rendering and bundle size. Build monitoring and alerting so you know when things degrade before users do.
Build for scale. Architect with growth in mind - horizontal scaling, load management, connection pooling, async processing, and infrastructure that doesn’t buckle under increasing tenants and traffic.
Set the engineering standard. Establish patterns, conventions, and quality bars that a growing team will build on top of. Write code that teaches.
Mentor and uplevel. Help mid-level and senior engineers grow. Conduct design reviews, pair on hard problems, and raise the technical bar through collaboration, not gatekeeping.
Champion modern tooling. Actively evaluate and adopt tools that make the team faster - including agentic coding tools like Claude Code. Experiment, form opinions based on evidence, and influence the team through merit, not mandates.
Stay sharp. Keep a pulse on emerging trends in software engineering, AI-assisted development, infrastructure, and developer tooling. Bring what’s relevant back to the team.
Wear whatever hat is needed. Jump into DevOps, debugging, customer support escalations, hiring interviews, or anything else the team needs. We value people who see a gap and fill it.

Staff Software Engineer, Full-Stack

The role

Staff Software Engineer, Full-Stack

The role

What you will do

What you need

Nice to have

About Faeth Therapeutics

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Faeth Therapeutics