Backend Software Engineer (AI)

TL;DR

Backend Software Engineer (AI): Designing, building, and scaling the core of our digital health platform focused on expanding the capabilities of Eva, our AI-powered health assistant, and building systems that automate and simplify healthcare administration at scale. Focus on bringing AI and NLP solutions into production, championing engineering best practices and improving reliability.

Location: Hybrid work (SF office Mon/Tues/Thurs)

Company

Infinitus is the first trusted voice AI platform transforming healthcare.

What you will do

• Design, build, and maintain scalable backend services and APIs that power Eva’s healthcare interactions.
• Collaborate with Data Science, Frontend, and Infrastructure teams to bring AI and NLP solutions into production.
• Make technical tradeoffs to balance impact, user experience, and long-term scalability.
• Champion engineering best practices, including reducing technical debt and improving reliability.
• Mentor junior engineers and contribute to growing a high-performing engineering culture.

Requirements

• 5–8 years of backend engineering experience, with a track record of shipping and scaling production systems.
• Strong expertise in backend languages (e.g., Go, Python, Java, C++).
• Hands-on experience with cloud services (AWS, GCP) and modern DevOps practices.
• Solid foundation in designing APIs and integrating backend services.
• Deep understanding of database technologies (SQL and NoSQL), with experience optimizing performance.
• Curiosity about ML/NLP concepts and interest in applying them at scale.

Culture & Benefits

• Hybrid work (SF office Mon/Tues/Thurs) + catered lunches
• Competitive salary, equity, and 401(k)
• Wellness stipend & great benefits (medical, dental, vision)
• Generous PTO & parental leave
• Bi-annual offsites & a collaborative, mission-driven culture

Hiring process

• Apply & meet our recruiting team
• Virtual Interviews to showcase your skills
• Final onsite loop to meet the team and get to know us better