Senior Ai Software Engineer - Real-Time Voice & Llm Platforms

Solicitante De Empleo

Barcelona, Spain

6 days ago

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Role details

Contract type

Permanent contract

Employment type

Full-time (> 32 hours)

Experience required

5 years minimum

Compensation

€100,000.0

Working hours

Regular working hours

Languages

English, Spanish

Job source

www.recruit.net

Tech stack

Artificial Intelligence Amazon Web Services Continuous Integration Cursor (Graphical User Interface Elements) Python (Programming Language) SQL Databases Systems Integration TypeScript AI Infrastructure Real Time Systems ReactJS Large Language Models

+3 more

Multi-Agent Systems Machine Learning Operations Docker

Job description

Building scalable APIs and services for real-time voice interactions
Developing product features end-to-end with React, TypeScript and AI infrastructure
Integrating LLM, STT and TTS workflows into production
Working on agentic and multi-agent workflows
Improving architecture, observability, testing and engineering quality
Working directly with the founders and senior team to shape the platform

Requirements

They are now looking for a Senior/ Principal Software Engineer to help scale the platform behind their voice agents, owning features end-to-end across their TypeScript / Python stack and working on AI pipelines, LLM orchestration, STT/TTS, prompt workflows and real-time systems. What we are looking for

+5-7 years of production experience with modern web stack
Experience with AI coding agents such as Claude Code, Cursor or Codex
Real Product mindset and ability to work autonomously
Comfortable with Docker, SQL, testing and scalable architecture
Fluent Spanish and English

Nice to have

Experience with LLMs, STT/TTS, OpenAI, Whisper, ElevenLabs or Deepgram
Experience with LangChain, LangGraph or similar AI orchestration tools
AWS/GCP, CI/CD and observability experience
Startup or early-stage product company experience
PRevious experince leading a team or acting as a principal xqbhyrx

About the company

Our partner is building next-generation AI-driven communication products that help businesses automate customer interactions, improve operational efficiency and generate actionable insights in real time.