Senior / Staff Software Engineer (Product)

Career Mentors, LLC • New York, NY

3d • $190,000 - $220,000 • Onsite

About The Position

Full-stack product-focused engineer owning features end-to-end. Build reliable, intuitive experiences across frontend and backend that power mission-critical AI workflows. Set technical direction within product areas, engage directly with customers, and drive rapid iteration based on real usage feedback.

Requirements

• 3+ years of professional full-stack software engineering experience.
• Experience scaling production systems at a startup (Series B/C stage preferred).
• Proficiency with TypeScript and Node.js.
• Comfort working across frontend (React-based UIs) and backend (service APIs).
• Expertise building and shipping large, complex product features.
• Degree in Computer Science, Computer Engineering, Math, or another technical/STEM field preferred.
• Comfortable engaging directly with customers to gather feedback.
• Self-starter with strong ownership mentality who thrives in a fast-paced startup environment.
• Must be a US Person per ITAR.

Nice To Haves

• Previous founder experience or background in government contracting/public-sector software is a plus.

Responsibilities

• Design, build, and ship full-stack product features across frontend and backend systems.
• Set technical patterns and direction within assigned product areas (e.g., Capture, Proposal, Contract, Platform, Data Library).
• Engage directly with customers: observe product usage, gather feedback, and incorporate insights into improvements.
• Build intuitive interfaces and APIs that help users understand, guide, and trust AI-powered workflows.
• Improve system reliability, performance, and scalability as the platform grows.
• Own end-to-end delivery while maintaining context across the full product suite.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level