Principal Software Engineer

Joyous; Foster City (CA); Hybrid; USD 150,000 - 350,000; Full time

Benefits offered by this job

Medical Insurance

Dental Insurance

Vision Insurance

401k + Match

Flexible Time Off

In-office perks

Job summary

Joyous is transforming mental health care with AI-first solutions. As Principal Software Engineer, you will guide the technical evolution, scale our platform, and work with the CTO to drive architecture, real-time analytics, and AI-enabled care. You will mentor teams, design AI-driven workflows, and build scalable systems for thousands of patients, while partnering across clinical and product teams to deliver impact.

Qualifications

• Bachelor’s degree in Computer Science or related field.
• 10+ years of progressive full-stack development experience.
• Experience building scalable consumer-facing products in a startup environment.
• Strong understanding of systems and architecture with a track record of scalable apps.
• Proficiency in JavaScript, Node.js, React.js and related technologies.

Responsibilities

• Enhance and scale the existing patient portal and platform infrastructure.
• Architect and develop key components of the EHR/EMR system, AI-driven engagement tools, and video conferencing platform.
• Design and implement AI-powered solutions that predict treatment efficacy and automate workflows.
• Optimize system performance, security, and scalability for providers and patients.
• Mentor engineers and promote best practices in AI integration and full-stack development.
• Collaborate with AI researchers, product managers, and clinicians to build intelligent solutions.
• Stay ahead of AI and cloud technologies to keep the platform cutting-edge.

Skills

JavaScript

Node.js

React.js

Full-stack development

Software architecture

Education

Bachelor’s degree in Computer Science or related field

Tools

CI/CD

Job description

Join Joyous in our mission to revolutionize mental health care. As pioneers, we leverage very low dose (VLD) ketamine, AI-powered treatments, and advanced technologies to make mental health care effective, accessible, and affordable. With a team of nearly 120 professionals, we’ve transformed over 60,000 lives, leading a mental wellness revolution for a future where everyone can thrive. Working with us offers more than a job; it’s a chance to be part of a life-saving mission that promotes health and compassion worldwide. You’ll push mental health care boundaries with AI innovations, contributing to meaningful change and experiencing significant professional growth. At Joyous, we’re creating lasting impacts, one life at a time.

The Role:

At Joyous, we’re transforming mental health care with AI-driven solutions, integrating personalized treatment plans, digital interventions, and real-time analytics to improve patient outcomes. As a Principal Software Engineer, you’ll work directly with our CTO to lead the technical evolution of our AI-first platform, optimize existing infrastructure, and pioneer new systems to support our growing user base.

If you’re passionate about building AI-powered applications, scaling platforms, and creating real-world impact, this is your opportunity to shape the future of mental health tech—a space where innovation meets human connection.

Why This Role Is Exciting

• AI-Driven Engineering — Work on cutting-edge AI agents, train LLMs, and develop predictive analytics that personalize patient care, optimize treatment plans, and engage users more effectively.
• Architect & Scale Platforms — Lead the technical evolution of our EHR/EMR system, AI-integrated tools, and video conferencing platform, ensuring seamless performance, security, and scalability.
• Tackle Complex Engineering Challenges — Optimize real-time data pipelines, cloud infrastructure, and AI-driven decision-making systems while working with a modern tech stack (Node.js, React.js, cloud computing, real-time analytics).
• Impact Lives at Scale — The software you build will enhance care for thousands of patients, making mental health treatment more personalized, accessible, and effective.

Location:

• This will be a Hybrid role based out of our HQ in Foster City, CA

Responsibilities:

• Enhance & scale our existing patient portal and platform infrastructure to support rapid growth and new AI capabilities.
• Architect & develop key components of our EHR/EMR system, AI-driven engagement tools, and video conferencing platform.
• Design & implement AI-powered solutions that predict treatment efficacy, automate workflows, and improve patient engagement.
• Optimize system performance, security, and scalability, ensuring a seamless experience for providers and patients.
• Mentor engineers & drive best practices in AI integration, system architecture, and full-stack development.
• Collaborate with cross-functional teams, including AI researchers, product managers, and clinicians, to build intelligent, user-friendly solutions.
• Stay ahead of AI & cloud technologies, integrating the latest advancements to enhance our platform.

Qualifications:

• Bachelor’s or higher degree in Computer Science or related field.
• 10+ years of progressive experience, with a focus on full-stack development.
• Strong proficiency in JavaScript, Node.js, React.js, and related technologies.
• Demonstrated experience in building and scaling consumer-facing products within a startup environment.
• Strong understanding of systems and architecture with a track record of building scalable applications from scratch.
• Knowledge of professional software engineering best practices for the full software development lifecycle, including coding standards, code reviews, source control management, build processes, testing, and operations.
• Excellent problem-solving skills and ability to communicate technical concepts effectively.
• Familiarity with agile development methodologies and CI/CD
• Impact:
• Your technical leadership will drive the successful development and scalability of our platform, enabling us to deliver innovative solutions to our patients.
• You’ll play a critical role in shaping the technical direction of our company and ensuring our platform remains competitive in the healthcare industry.

Growth and Development:

As our engineering team expands, so do the opportunities for our staff.

• We’re committed to professional growth, offering access to training, workshops, and conferences to keep you at the forefront of technological advancements.
• Mentorship and leadership development are part of our DNA, allowing you to learn from the best and eventually lead projects or mentor others.
• You’ll be at the forefront of developing and scaling digital health solutions that make a real difference in people’s lives. Whether it’s building new products from the ground up or enhancing the scalability and efficiency of our existing platforms, your work will directly contribute to improving mental health care for our patients.

Work Culture:

We are a highly energetic and entrepreneurial team. We encourage all our employees to take ownership of their projects but also work in a highly collaborative environment that encourages everyone to have and share their opinions. Also, everyone deeply believes in our mission as well as the future of using psychedelics in an individualized approach to mental health care.

If you’re an experienced engineer looking to take on a leadership role in a dynamic startup environment, we want to hear from you.

We are proud to offer the following benefits:

• Medical (HMO and PPO options), Dental, and Vision insurance
• 401k + Match (4%)
• Flexible Time Off
• Plus many in-office perks!

SF Bay Area Range
$150,000—$350,000 USD

Joyous is an equal opportunity employer and we value diversity at our company. We are committed to providing equal employment opportunities for all candidates regardless of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, disability status or any other characteristic protected by applicable law.

AGENCY AND THIRD PARTY RECRUITER NOTICE:

Joyous does not accept unsolicited resumes from individual recruiters or third-party recruiting agencies in response to job postings. No fee will be paid to third parties who submit unsolicited candidates directly to our hiring managers or Recruiting Team. All candidates must be submitted via our Applicant Tracking System by approved Joyous vendors who have been expressly requested to make a submission by our Recruiting Team for a specific job opening. No placement fees will be paid to any firm unless such a request has been made by the Joyous Recruiting Team and such a candidate was submitted to the Joyous Recruiting Team via our Applicant Tracking System.