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Prosper AiProsper Ai

Senior Product Engineer

Build end-to-end healthcare products powered by real-time conversational AI, spanning voice agents, SMS, and web experiences. The role requires 5+ years of product engineering experience, full-stack development skills, distributed-systems expertise, and strong product ownership.

About the job

Responsibilities

  • Design and build real-time AI products, including conversational voice agents and patient-facing products across SMS, web, and other channels.
  • Take products from ideation and rapid MVP development through production deployment and success tracking.
  • Engineer systems that sound human, reason under strict latency constraints, and adapt to complex healthcare conversations.
  • Build and operate products serving thousands of high-stakes daily patient interactions.
  • Collaborate with customers to understand their needs and pain points.
  • Sketch user interfaces and contribute to product decisions without serving as the product manager or designer.

Requirements

  • 5+ years of experience building products end-to-end, from quick MVPs to production-grade software.
  • Strong understanding of FastAPI, Python, PostgreSQL, React, and TypeScript, or equivalent technologies in other languages.
  • Experience managing large-scale distributed systems with asynchronous workload orchestration.
  • Passion for building high-quality products.
  • Founder mindset, with strong ownership and work ethic.
  • Bachelor's or master's degree in Computer Science, Engineering, Mathematics, Physics, or a related field, or equivalent experience.
  • Willingness to work full-time from the Barcelona office, with the possibility of moving to the New York office.

Interview Process

  • Initial conversation to discuss background, goals, and interests.
  • Take-home challenge followed by discussion.
  • Solution review with engineers.
  • Conversation with the co-founder.

Skills

FastAPI, Python, Postgres, React, TypeScript, Distributed Systems, Asynchronous Workload Orchestration, Figma

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