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Senior/Staff Software Engineer at Joyous.team

Join Joyous.team, the world’s largest psychedelic company, as a Senior/Staff Software Engineer to build the future of mental health care. With over $40M in ARR and a mission-driven team, Joyous.team uses AI-powered ketamine therapy to transform lives at scale. You will work directly with the CTO to architect AI agents and predictive data pipelines that adapt patient treatments in real-time. This is a rare chance to merge cutting-edge LLM development with profound human impact, helping tens of thousands of people overcome depression and anxiety. If you’re a high-velocity builder ready to own the next evolution of personalized medicine, apply today to lead this category-defining revolution in Foster City.

About this role

Role overview

You will work directly with the CTO to architect and scale an AI-first platform for personalized mental health care. You'll build intelligent agents and predictive data pipelines that adapt medication dosages daily for over 85,000 patients. This role offers the unique opportunity to ship high-impact code that measurably improves lives within a high-velocity, mission-driven startup environment.

About the company

Healthcare

Joyous offers an alternative hope for depression and anxiety through a proprietary and affordable low dose ketamine treatment protocol. The company provides a comprehensive telehealth mental health care plan including assessment, consultation, medication delivery, ongoing support via a digital platform, and curated treatment courses for conditions like depression, anxiety, PTSD, and chronic stress.

What you'll do

What you will do

  • Lead the technical evolution of the core EHR/EMR system and patient portal, ensuring high performance, security, and scalability for a rapidly growing user base.
  • Architect and deploy AI-powered tools and agents that automate clinical workflows, predict treatment efficacy, and personalize the patient experience in real-time.
  • Collaborate with AI researchers and clinicians to bridge the gap between complex data science and user-friendly product experiences that drive life-saving health outcomes.

Who you are

Who this is a fit for

  • Possesses 6-10+ years of full-stack engineering experience, with deep proficiency in JavaScript, Node.js, and React.js for building scalable, consumer-facing products.
  • Demonstrates a high learning velocity and genuine enthusiasm for AI, including experience building with LLMs and using AI coding tools to accelerate development cycles.
  • Brings a builder mindset with a proven track record of owning entire product features end-to-end within high-quality, fast-paced startup environments.

Why this role

Why this role is remarkable

  • Scale massive impact by developing AI systems that refine personalized treatments for 85,000+ patients daily, moving mental health care from generic to data-driven.
  • Join a high-growth category leader with $40M+ ARR that functions with a lean startup DNA, offering both stability and the speed of an early-stage venture.
  • Work on a sophisticated tech stack involving real-time data pipelines, LLM-driven agents, and predictive analytics that create an immediate feedback loop between code and patient outcomes.

Jack & Jill

How Jack & Jill work together

Jack
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Jill
I recruit from Jack’s network and make the intro when I spot a great match.

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Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.

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Jill is the AI recruiter working for the company. She recruits from Jack’s network.

If it’s a match and the company wants to meet you, they’ll make the intro. In the meantime, if you’d like, Jack will send you excellent alternatives.

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