As a Senior AI Engineer at Prosper AI in Barcelona, you will architect and scale low-latency speech and LLM pipelines that power human-like voice agents for healthcare. You’ll tackle the engineering challenges of real-time AI orchestration, building reliable systems that handle thousands of daily calls for major enterprise organizations.
Senior AI Engineer at Prosper AI
Prosper AI is building the future of healthcare communication with human-like AI voice agents. As a Senior AI Engineer, you will design low-latency LLM pipelines and high-performance distributed systems that manage thousands of daily calls. Join a world-class team of ex-MIT and Math Olympiad medalists to eliminate $200B in administrative waste. This role offers meaningful equity and the chance to solve complex real-time AI challenges for major healthcare enterprises.
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Location
Barcelona, Spain
Compensation
Not Disclosed + Equity
Company
Prosper AI
Role overview
Prosper AI is an AI platform for healthcare organizations that automates patient access and revenue cycle workflows using voice agents. Its agents handle tasks across the patient journey, including appointment scheduling, insurance and benefit verification, prior authorizations, claims status checks, patient reminders, and billing follow-up. The company positions its product as an AI-first operating system for healthcare operations, with deep integrations into EHR and practice management systems.
What you will do
- Design and scale the platform’s low-latency speech/LLM pipelines and orchestration layers using Python (FastAPI) and Pipecat for voice agents.
- Develop and maintain high-performance, asynchronous distributed systems to manage thousands of concurrent daily AI phone conversations and complex workload orchestration.
- Collaborate with a world-class team of ex-MIT and Math Olympiad medalists to bridge the gap between complex ML models and production-grade software.
Who this is a fit for
- 3-5 years of experience building products end-to-end, with deep expertise in architecting and deploying production-grade, large-scale distributed systems.
- Strong proficiency in the FastAPI (Python) and PostgreSQL stack, with a solid understanding of asynchronous workload orchestration and backend architecture.
- Possesses a “founder mindset” with high ownership and a bias for action, seeing this role as a critical step toward building their own startup.
Why this role is remarkable
- Join a high-growth team that recently raised $35M from top-tier investors including a16z and YC to solve a critical $200B healthcare efficiency problem.
- Work at the cutting edge of real-time AI, engineering voice systems that reason under extreme latency constraints and sound indistinguishable from humans.
- Be a founding member of the Barcelona engineering hub with the opportunity to move to the New York headquarters and scale with elite technical talent.
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