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Sr. Applied Behavioral Scientist

Vesync · Tustin, CA

Extracted from the posting

Base
From $200,000
Remote
US-based team
Stack
Figma, Adobe After Effects, Adobe Illustrator, Adobe InDesign (company stack)

Senior Applied Behavioral Scientist role on VeSync's US-based Behavioral Science team, acting as technical lead for the just-in-time adaptive intervention design system, built with the AI Team. The role owns the causal-inference learning loop, specifying attribution, instrumentation requirements for Engineering, and recommendation architecture with ML. Relevant methods include behavioral taxonomy, BCTTv1, COM-B, micro-randomized trials, and multi-armed bandits.

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.

What you will do at VeSync:

    What you bring to the role:

      Location:

      • Tustin, CA

      Salary:

      • Starting at $200K Annually

      Perks and Benefits:

        Company stack

        This posting doesn’t list technologies. These are the ones Vesync uses across its other roles.

        FigmaAdobe After EffectsAdobe IllustratorAdobe InDesignAdobe PhotoshopANSI X12CeligoCommerceHub
        Vesync
        Vesync

        Job details

        TypeFull-time
        Work ModeOn-site
        LevelSenior
        Location🇺🇸Tustin, CA
        SalaryFrom $200,000
        PostedNov 06, 2026
        Apply Now