AI Full Stack Engineer

Infinitus

$130K — $180K *
Healthcare
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • 8+ years of full-stack engineering experience
  • Proven track record delivering complex user-facing products
  • Expertise in frontend and backend technologies (e.g., React, Python, Go)
  • Experience designing scalable APIs and backend services
  • Hands-on experience with cloud infrastructure (AWS, GCP)
  • Knowledge of AI-enabled product development practices
  • Strong product judgment with a focus on user-centered design

Responsibilities

  • Design and scale AI-powered user-facing health products
  • Lead end-to-end delivery of full-stack product experiences
  • Collaborate with cross-functional teams to implement AI workflows
  • Translate product opportunities into technical plans
  • Build robust systems for application logic and data pipelines
  • Integrate AI technologies into existing frameworks
  • Establish engineering standards for best practices and reliability

Benefits

  • Hybrid work model with catered lunches in the Bay Area
  • Competitive salary with equity and 401(k) options
  • Wellness stipend and comprehensive medical benefits
  • Generous PTO and parental leave policy
  • Collaborative culture with bi-annual offsites
Full Job Description
Your Role

We are looking for a Backend Software Engineer to help us design, build, and scale the core of our digital health platform. You'll work on expanding the capabilities of Eva, our AI-powered health assistant, and build systems that automate and simplify healthcare administration at scale. This role blends hands-on backend development with opportunities to influence technical direction and mentor teammates.

Your Impact
  • Design, build, and scale AI-powered, user-facing products that make Eva's healthcare interactions more intelligent, intuitive, and reliable.
  • Lead the end-to-end delivery of complex full-stack product experiences, from frontend architecture and backend services to APIs, data integrations, and production workflows.
  • Partner closely with Product, Design, Data Science, Infrastructure, and other engineering teams to bring AI capabilities into real user workflows in a practical, scalable, and measurable way.
  • Translate ambiguous product and AI opportunities into clear technical plans, balancing speed, user experience, reliability, safety, and long-term maintainability.
  • Build robust systems that connect application logic, data pipelines, model outputs, and human-centered product experiences.
  • Evaluate and integrate AI technologies, including LLM-enabled workflows, retrieval systems, classification, summarization, automation, and decision-support experiences where appropriate.
  • Establish strong frontend and backend engineering standards, including component architecture, API design, system reliability, observability, testing, and development best practices.
  • Make high-quality technical tradeoffs across product impact, engineering complexity, scalability, and long-term platform health.
  • Drive cross-team and cross-org alignment to ship high-impact work, influencing through technical clarity, judgment, and collaboration rather than authority.
  • Mentor and grow engineers across the team, raising the bar for technical execution, product thinking, and engineering culture.
  • Contribute to both short- and long-term technical roadmaps, especially around AI-enabled product development, platform scalability, and full-stack architecture.
  • Help shape how Eva responsibly applies AI in healthcare workflows, with a focus on usefulness, trust, reliability, and excellent user experience.

Your Skillset
  • 8+ years of practical full-stack engineering experience
  • A track record of leading the design and delivery of complex consumer or B2B user-facing products across the full stack.
  • Deep expertise in modern frontend and backend development, with strong proficiency in technologies such as React, TypeScript, Python, Go, Java, C++, or similar.
  • Strong experience designing scalable APIs, backend services, data models, integrations, and distributed systems.
  • Hands-on experience with cloud infrastructure and modern DevOps practices, ideally across AWS, GCP, or similar environments.
  • Solid understanding of database technologies, including SQL and NoSQL systems, with experience optimizing for performance, reliability, and scale.
  • Practical familiarity with AI-enabled product development, such as LLM integrations, model orchestration, prompt/system design, retrieval-augmented generation, evaluation workflows, or AI-assisted automation.
  • Strong product judgment and a user-centered approach to building solutions that are robust, scalable, trustworthy, and easy to use.
  • Experience working in early-stage startups or similarly fast-moving, rapidly evolving environments; ideally, you have built products from 0 to 1.
  • Ability to navigate ambiguity, define technical direction, and deliver high-quality products in fast-paced environments.
  • Demonstrated success driving cross-team or cross-org alignment to get impactful work shipped.
  • Experience establishing engineering standards, component architectures, reusable patterns, and development best practices.
  • A strong mentorship mindset and a deep commitment to investing in the growth of peers and more junior engineers.
  • Entrepreneurial mindset: you take initiative, operate with ownership, and drive projects from concept through production impact.

Nice to Have
  • Experience building AI-powered products in healthcare, fintech, enterprise SaaS, or other high-trust domains.
  • Experience with evaluation, monitoring, and reliability practices for AI systems in production.
  • Familiarity with healthcare data, clinical workflows, privacy-sensitive systems, or regulated environments.
  • Experience building internal platforms or tooling that accelerate AI product development across engineering teams.

Why You'll Love It Here

Please Note: the following benefits are for salaried employees
  • Hybrid work (SF office Mon/Tues/Thurs) + catered lunches (Bay Area Positions only)
  • 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

What to Expect in the Interview 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
  • Chat with our CEO

Curious to Learn More?
  • Read our Blog to hear from Infinauts about what we're building
  • Discover how our company values (CODES) guide us
  • Follow our CEO, Ankit Jain, for industry updates

We're building AI agents that tackle healthcare's toughest problems and open new possibilities. Ready to join us? Let's talk!

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