Senior/Staff Software Engineer

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 Senior/Staff Software Engineer, you'll work directly with our CTO to support and build 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.
• 6-10+ 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 lear