Senior Product Engineer ($160K – $250K + Equity) at Series B AI human simulation lab

Jack & Jill/External ATS • San Fransisco, CA

6d • $160,000 - $250,000

About The Position

Join a high-growth research lab pioneering the future of human computing through real-time AI simulation. As a Senior Product Engineer, you will drive the platform from 0→1, balancing elegant frontend craft with robust backend systems. You'll work closely with leadership to shape intuitive interfaces that bridge the gap between people and machines.

Requirements

• Proven track record of building and shipping consumer-facing products from scratch, preferably within high-growth startup environments.
• Exceptional design sensibility and a "product-first" mindset, with the ability to defend technical decisions that impact the user experience.
• Advanced communication skills and a senior mentality, capable of navigating ambiguity while setting clear technical directions for the engineering team.

Responsibilities

• Lead the development of platform features using React, owning the lifecycle from initial ideation and architecture to production launch.
• Collaborate across design and research teams to define product direction, prioritizing features that enhance user empathy and interaction.
• Maintain a high bar for performance and design, spending the majority of your time on polished frontend experiences and supporting backend integrations.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed