Design and scale low-latency speech and LLM pipelines for AI Phone Agents, tackling real-world healthcare challenges and improving efficiency in patient communications.
About Prosper AI
Prosper AI specializes in AI Phone Agents for healthcare, providing human-like expertise while significantly reducing costs. Our AI Agents efficiently handle tasks for calling patients and payors such as claims status checks, benefit verification, prior authorizations, patient scheduling, and balance reminders. We aim to eliminate $200B in administrative waste, allowing healthcare professionals to focus more on healing and less on administrative tasks.
What you'll do
At Prosper, we’re pushing the limits of what’s possible with real-time AI. We’re not just making voice agents that “talk”, we’re engineering systems that sound human, reason under strong latency constraints, and adapt instantly to messy, high-stakes healthcare conversations. As a Software Engineer, you’ll be at the center of designing and scaling our platform, the low-latency speech/LLM pipelines, orchestration layers, and reliability systems that make this possible.
This is a full-time on-site role located in Barcelona with the possibility to move to the New York Office.
What we're looking for
3-5 years of experience building products end-to-end, from architecting solutions to deploying production-grade software.
A solid understanding of the technologies that power our stack or their equivalents in other languages: FastAPI (Python) backend with a React (TypeScript) frontend.
Experience working with LLMs, AI agents or other ML models, and creating user-facing products with them. We use Pipecat for our voice agents.
Familiarity with large scale distributed systems with asynchronous workload orchestration is a plus.
Founder mindset: ownership + hard work. You see Prosper as a learning step for your future startup.
Be ready to handle the challenges of deploying AI voice agents to thousands of daily phone calls.
Bachelor’s or Master’s degree in Computer Science, Engineering, Maths, Physics or related field (or equivalent experience).
Interviewing process
Initial conversation to understand who you are, what you want to do, and where you wanna go (30 minutes)
Work on a take-home challenge to discuss in the following interview
Review your solution with a couple of engineers from the team (60 minutes)
Talk with the co-founder (60 minutes)
Offer stage
Prosper AI develops AI Phone Agents specifically for the healthcare sector, enabling tasks like patient scheduling and benefit verification to be handled with human-like efficiency. Our technology aims to reduce the massive $200 billion in administrative waste, allowing healthcare providers to concentrate more on patient care rather than paperwork.
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