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Founding Product Engineer (Visualization)

San Francisco (On-site)

About Us

Constellation is creating the AI-human translation layer that ensures humanity evolves alongside our technology. Our mission is to leverage AI towards addressing deep and meaningful problems at the core of the human experience: empowering people towards their goals, augmenting our cognition and emotional wellness, and understanding ourselves and each other. Our path forward is to move away from AI that captures human knowledge towards AI that truly understands what it is to be human. We are generating the richest multimodal dataset ever collected to build a new class of foundation models and we're seeking the founding team of engineers to build the infrastructure that makes this ambitious future a reality.

The Role

We are looking for a Founding Product Engineer to build the interface for our multi-modal data collection. You will own the interface between our infrastructure and our humans. The data we are collecting is only as powerful as our ability to perceive, verify, and interact with it. Your goal is to turn raw, high-dimensional data into an intuitive, actionable, high-performance visualization dashboard. This is a role that will evolve over time based on new data types and product needs.

Your software will target two critical user groups:

Data Collection Technicians: They need real-time, “at-a-glance” status monitoring to ensure data integrity during live recording sessions.
AI Researchers and Data Scientists: They need tools for navigating the data, replaying segments, and identifying patterns.

You will need to balance heavy data loads with a responsive UI, designing interactions that make complex data streams intuitive and actionable.

Responsibilities

Build a snappy interactive dashboard for navigating, visualizing and interacting with our data.
Build custom interactive visualizations for multi-modal data streams (Video, Audio, 3D, Timeseries).
Build interactive interfaces for manual data annotation, and note-taking. Your tools will directly improve the efficiency of our data collection loops.
Work with our Infrastructure team to deploy the backend data syncing strategies (WebSockets/Streaming) that power your frontend.
Design intuitive layouts that manage high information density.
Optimize rendering logic to ensure the UI remains smooth, even while ingesting megabytes of data.

Qualifications

5+ years of frontend engineering experience, with a track record of building complex, data-heavy web applications.
Deep expertise in modern JavaScript/TypeScript and at least one major framework.
Experience with d3.js, WebGL, Three.js, or similar libraries.
A natural eye for aesthetics and user experience. You can craft a polished, visually compelling UI.
You've worked with video players, audio visualization, 3D spatial data or multi-variate timeseries data in the browser before.
Demonstrably adaptable and excited about finding creative solutions to problems nobody has solved before.
Passionate about positively imparting the well-being of humanity and not just capitalizing on it.
You thrive in a high-bandwidth, collaborative environment.

Nice to Have

Interest in neurotech, mental health, or human-AI interaction.

Compensation

Salary Range: $160,000 – $230,000 USD
Equity: Offers equity

Benefits

Comprehensive, high-quality health, dental, and vision insurance with premiums fully covered.
A renovated, light-filled office with a quirky layout and full kitchen in the heart of San Francisco's Mission District, surrounded by world-class food and coffee.
Relocation assistance for those joining us in SF and workspace setup stipend.
Bi-monthly team dinners and outings, plus twice-yearly off-sites and retreats.
Fully stocked kitchen (snacks!) and a dedicated meal budget.
Sponsorship for travel to relevant conferences and regular professional development activities to help you level up.
A minimum of 12 weeks of fully paid parental leave with a “soft-landing” transition back.
Paid time off (PTO)

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