Senior Software Engineer - Real-Time AI Voice & Scale

Prosper AI; Barcelona; On-site; EUR 45,000 - 65,000; Full time

Job summary

A leading AI technology company located in Barcelona is seeking a Software Engineer to design and scale their AI platform. This full-time on-site role involves developing low-latency speech pipelines and ensuring the reliability of AI voice agents deployed to handle thousands of daily calls. Ideal candidates have a strong background in Python and JavaScript, along with experience in complex software solutions and a collaborative mindset. This presents a unique opportunity for growth and innovation in the AI space.

Qualifications

• 3-5 years of experience building complex software solutions.
• Solid grasp of algorithms, data structures, and software engineering best practices.
• Familiarity with LLMs, AI agents, or other ML models is a plus.

Responsibilities

• Design and scale platform, low-latency speech/LLM pipelines, and orchestration layers.
• Handle challenges of deploying AI voice agents to thousands of daily phone calls.

Skills

Python

JavaScript

React

Algorithms

Data Structures

Large Scale Distributed Systems

Education

Bachelor’s or Master’s degree in Computer Science, Engineering, Maths, Physics or related field

Job description

A leading AI technology company located in Barcelona is seeking a Software Engineer to design and scale their AI platform. This full-time on-site role involves developing low-latency speech pipelines and ensuring the reliability of AI voice agents deployed to handle thousands of daily calls. Ideal candidates have a strong background in Python and JavaScript, along with experience in complex software solutions and a collaborative mindset. This presents a unique opportunity for growth and innovation in the AI space.