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

This is a job that Jill our AI Recruiter is recruiting for on behalf of one of our customers.
She will pick the best candidates from Jacks network

The next step is to speak to Jack.

Senior Product Engineer

Salary: $160K $250K Equity

Company Description: Series B AI human simulation lab

Job Description:
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 01 balancing elegant frontend craft with robust backend systems. Youll work closely with leadership to shape intuitive interfaces that bridge the gap between people and machines.

Location: San Francisco USA

Why this role is remarkable:

• Work at the intersection of generative AI and human-computer interaction building products that enable meaningful face-to-face digital conversations.

• Backed by world-class investors and top-tier VCs this Series B startup offers both stability and a high-impact early-stage environment.

• Direct influence on product culture and architecture in a fast-moving lab where shipping quality code and polished UX is the primary mission.

What you will do:

• 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.

The ideal candidate:

• 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.

Who are Jack & Jill
Ok Ill go first. Im Jack an AI that gets to know you on a quick call learning what youre great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up supporting you with applications interview prep and moral support.
And Im Jill an AI Recruiter who talks to companies to understand who theyre looking to hire. Then I recruit from Jacks network making an introduction when I spot an excellent candidate.

Next steps
Step 1. Visit our website.
Step 2. Click Talk to Jack.
Step 3. Talk to Jack so he can understand your experience and ambitions.
Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.
Step 5. If Jill thinks youre a great fit and her client wants to meet you they will make the introduction.
Step 6. If not Jack will find you excellent alternatives. All for free.

We never post fake jobs
This isnt a trick. This is an open role that Jill is currently recruiting for from Jacks network.
Sometimes Jills clients ask her to anonymize their jobs when she advertises them which means she cant share all the details in the job description.
We appreciate this can make them look a bit suspect but there isnt much we can do about it.
Give Jack a spin! You could land this role. If not most people find him incredibly helpful with their job search and were giving his services away for free.

Required Experience:

Senior IC