Founding Full-Stack Engineer

Confidential company; San Francisco (CA); On-site; USD 180,000 - 240,000; Full time

Benefits offered by this job

Equity 0.25%–0.75%

Job summary

Ersilia is hiring a founding Full-Stack Engineer for the SF Bay Area to build a wearable AI copilot for industrial field technicians. The role is in-person, mid-level, and focuses on the real-time data pipeline from glasses to model, plus APIs, data layer, frontend, and mobile client interfaces.

You will work closely with co-founders in a seed-stage environment, shipping end-to-end features with latency budgets and varying connectivity. Equity offered with base salary 180k–240k.

Qualifications

• 2–5 years of experience shipping scalable systems with real users.
• Full-stack capability including frontend, backend and mobile (React/React Native).
• Based in the Bay Area and able to work fully in person.

Responsibilities

• Own the product layer around the AI core end-to-end, including real-time video and data pipelines.
• Build backend APIs, data layer, frontend and mobile client touchpoints with latency constraints.

Skills

Full-stack development

Real-time systems

In-person work

Tools

React

React Native

Job description

Founding Full-Stack Engineer

Seed physical-AI company, SF Bay Area

The company builds a wearable AI copilot for industrial field technicians, currently live in eight countries. It has raised a $5M seed round and is hiring four founding engineers to work in person in the Bay Area.

SF Bay Area (Burlingame)

On-site

Mid-level

$180k–$240k base + 0.25% to 0.75% Equity

The role

Own the product layer around the AI core end to end: the real-time video and data pipeline from glasses to model under tight latency budgets and bad connectivity, plus backend APIs, the data layer, and the frontend and mobile client customers touch.

What they are looking for

1. True full-stack range, including React and React Native with native bridges.
2. Real-time or low-latency systems background, such as live streaming, video infrastructure, edge networking, or hardware-constrained domains.
3. 2 to 5 years of experience and a track record of shipping scalable systems with real users, ideally at an early-stage company.
4. Based in the Bay Area and able to work fully in person.

Good to know

• You should have enough hardware exposure to build for wearables, but deep firmware experience is not required.
• Visa sponsorship is available for candidates already in the US.

How they interview

1. Intro call with a co-founder
2. Technical stage with both co-founders
3. On-site with the team