Software Engineer (Backend & AI/ML)

Trellis Health is a pregnancy and postpartum health app pioneering a next-generation consumer health platform.

We are seeking a Backend and AI/ML focused Software Engineer. This is a pivotal role designing data heavy scalable backend systems, leveraging AI architectures, and APIs to power transformative health experiences within a fast-moving, mission-driven, early-stage startup. Trellis Health is VC-backed, early stage and moving fast.

The ideal candidate:

• has 5+ years experience building scalable backend systems. Plus if experienced with Python; building privacy-first and HIPAA-compliant.
• has experience with LLMs, AI architectures.
• is excited about early stage product building

🤩 Why Join Trellis Health?

At Trellis Health, we’re building the most private, secure, comprehensive and intelligent consumer health platform. Starting with the most advanced pregnancy app that combines deep medical history and LLMs to support expecting parents in ways no other app on the market achieves. We are passionate about aligning ourselves , building things that matter and improve quality of life and healthcare outcomes, and doing so without compromising on values or privacy. Through our platform, we’re powering people with the most comprehensive understanding of their own health journeys to impact lifetime health outcomes and ease the load of health management for entire families — transforming both patient outcomes and scientific understanding of individual health.

🪴 Why join now?

We’re early stage, VC-backed by some amazing investors in the industry and currently in a small private beta. We’re moving fast and now is the time to shape the future with us. We prioritize building a diverse and creative team that shares our values and vision for the future of health tech. At Trellis Health, you’ll work closely across engineering, design and product teams. You will be part of a small team, and have an outsized opportunity to create cutting-edge technology, shape the future of healthcare data and care delivery, and see your work impact lives at scale—all while moving fast, building teams and making bold decisions.

🛠️ About the Role:

As a foundational member of our engineering team, you'll play a pivotal role in developing the backbone of our platform. We welcome tinkerers, self learners, explorers and doers. Your work will involve designing and implementing HIPAA-compliant software, developing APIs and integrations, and building privacy-preserving architectures, including self-hosted LLMs and AI agents. You'll collaborate closely with product and design teams to deliver seamless, user-focused solutions in a fast-paced, iterative development environment.

****💪 What You'll Do:

• Design, build, and maintain scalable backend systems, APIs, and 3rd party integrations.
• Develop and manage connections with health data partners, ensuring secure, reliable and scalable data flow.
• Implement privacy-preserving architectures, including building self-hosted LLMs and AI agents, fine-tuning models, and building AI-native applications.
• Perform extensive testing to ensure system security, reliability, and compliance with HIPAA and other regulations.
• Optimize backend systems for performance and scalability.
• Collaborate with product and design teams to deliver seamless, user-focused solutions.

****✅ What we’re looking for

• Experience working on LLMs and building AI agents, including multi-agent systems.
• Exceptional software engineering skills with a bias for action and love of solving tough problems; experience at a small startup is ideal.
• Ability to think critically, communicate ideas effectively, solve problems creatively, and adapt to a fast-paced development environment.
• Experience with FHIR, CCDA, and related standards is a plus. Including building highly secure, privacy preserving and robust software stacks in regulated industries - fintech, healthcare.
• Familiarity with ontologies, knowledge graphs, vector databases, and RAG is a plus.

🤸 Benefits

• Flexible time off
• Generous early-stage company equity package.
• Continuing education and training support.
• Hybrid and remote-first work schedule with core hubs in Seattle and San Francisco.
• Opportunity to build something special with a devoted team.
• Scalable compensation and benefits package in line with funding roadmap and team growth.

If you're passionate about healthcare and excited to work in a dynamic environment where you can make a significant impact, we'd love to hear from you.

Please reach out to us at [email protected]

Talent wins over experience and the universe rewards courage. We’re seeking the smartest minds to work on the toughest problems; you will have the freedom to innovate and the resources that you need to get stuff done. We move fast. We’re relentless. We have fun.