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AI Engineer in Barcelona

Prosper AI

Category
Full Stack Developer
Industry
Healthcare AI Industry
Workplace
Onsite
Hours
Full-Time
Internship
No
Skills
Typescript React Python LLMs FastAPI Artificial Intelligence
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Job Description

We're looking for a skilled Software Engineer to help design and scale advanced AI-driven voice agent platforms used in complex, real-time healthcare conversations. You'll work on building low-latency speech/LLM pipelines, orchestration layers, and reliability systems that drive high-stakes, user-facing AI products.

This is a hybrid position in Barcelona, Spain, requiring 3 days/week onsite. 

🎯 Responsibilities

  1. Design, build, and deploy end-to-end software products, from architecture through production readiness
  2. Develop and maintain low-latency speech and large language model (LLM) pipelines
  3. Engineer orchestration layers and systems focused on scalability, reliability, and performance
  4. Collaborate on solutions for AI agents that require real-time reasoning and adaptivity
  5. Support large-scale distributed deployments, ensuring effective handling of thousands of daily calls

🛠️ Requirements

  1. 3-5 years of experience delivering software products end-to-end, including architecture, implementation, and deployment
  2. Strong understanding of relevant technologies: FastAPI (Python) backend and React (TypeScript) frontend, or similar stacks in other languages
  3. Hands-on experience working with LLMs, AI agents, or other machine learning models, including creating user-facing products
  4. Ready to address the challenges involved in deploying AI voice agents at scale
  5. Bachelor’s or Master’s degree in Computer Science, Engineering, Mathematics, Physics, or a related field, or equivalent practical experience
  6. Demonstrates a founder mindset: strong ownership and a drive for learning and impact

âž• Nice to have

  1. Familiarity with large-scale distributed systems and asynchronous workload orchestration
  2. Direct experience with platforms such as Pipecat for voice agents

Hiring process

  1. Initial conversation to understand who you are, what you want to do, and where you wanna go (30 minutes)
  2. Work on a take-home challenge to discuss in the following interview
  3. Review your solution with a couple of engineers from the team (60 minutes)
  4. Talk with co-founder (60 minutes) 
  5. Offer
 

Read full job description

About Prosper AI

We are Prosper AI, a technology company focused on helping organizations make smarter decisions through artificial intelligence.

Our goal is to transform complex data into clear, actionable insights and automated decisions that drive business growth. To achieve this, we build AI solutions that analyze large volumes of information in real time and generate precise recommendations.

We are also specialized in AI-powered phone agents for the healthcare sector. Our AI Phone Agents handle calls with payors and patients with human-like expertise, while reducing costs by over 50%.

Our agents can manage tasks such as:

Benefits verification

Claims status checks

Prior authorizations

Patient scheduling

Balance reminders

They are available 24/7, handling these interactions continuously and efficiently.

Our broader mission goes even further: we aim to eliminate up to $200 billion in administrative waste in the healthcare system, allowing professionals to focus on what truly matters—healing, not handling bureaucracy.

In summary, at Prosper AI we turn data and communication into a real competitive advantage through artificial intelligence.

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