hirly

This posting is no longer listed by Vesync.

hirly last saw it live on 1 September 2026. Similar roles are on the live board.

Vesync

Sr. Applied Behavioral Scientist

Tustin, CA

Apply through hirly

hirly scores this role against your resume, shows its reasoning, then writes a resume and cover letter for it and fills the application with you. Free to start — no card required.

hirly's read of this role

Seniority
Senior
Country
US
Work mode
On-site / unstated
First seen by hirly
1 Sept 2026

Derived automatically from the posting. Sign up to see how the role scores against your own resume.

the posting

The Company:

VeSync is a portfolio company with brands that cover different categories of health & wellness products. We wouldn’t be surprised if you have one of our Levoit air purifiers in your living room or a COSORI air fryer whipping up healthy and delicious meals for you every night.

We’re a young and energetic company, we’ve had tremendous success, and we are constantly growing our team. As we garner more industry attention – just check out our accomplishments and awards by CES Innovation, iF Design, IGA, and Red Dot – we also need driven and talented people to join our team.

That brings us to you, and what you’ll be joining. Our teams are smart and diligent and take ownership of their work – they’re confident in their work but know how to collaborate with open ears and a spirit of learning. If you’re down-to-earth, approachable, and easy to strike up a conversation with, this may be a great fit for you.

Check out our brands:

levoit.com | cosori.com | etekcity.com

The Opportunity:

We are seeking a Senior Applied Behavioral Scientist to join our growing US-based Behavioral Science team as the senior technical lead for key components of our system. This role combines two functions that are closely intertwined in our product: owning the decision logic that determines what the system does for a user, and owning the statistical and causal-inference architecture that determines whether an intervention is working for that user.

On the decision logic side, you will lead development of our just-in-time adaptive intervention design system in partnership with the AI Team — a core system that determines when and how the app engages users, guiding them at moments that matter most. On the causal inference side, you will own the personalized learning loop that determines intervention effectiveness at the individual level — specifying the attribution scheme, defining instrumentation requirements for Engineering, and partnering with ML on the recommendation and causal-inference architecture. You will also have the opportunity to publish.

This is a high-leverage, intellectually demanding role for a senior behavioral scientist who combines data science-level rigor with behavior change theory and hands-on expertise in building decisioning systems, collecting and working with behavioral data, causal inference and adaptive experimentation, and who is comfortable translating both into practical, sprint-compatible infrastructure at an industry pace.

Is this role actually a fit for you?

hirly answers with a score and its reasoning, then writes the resume and cover letter if you decide to go for it.

Score it against my resume
Sr. Applied Behavioral Scientist at Vesync — hirly