At M47, we spark AI
We help tech companies understand how AI can drive their strategic objectives and effectively plan an implementation roadmap. Our mission is to leverage AI to create solutions that can understand, interpret, and respond to human language, empowering businesses and making better-informed decisions.

Join us in making the future more intelligent

About your day-to-day:
You will join our Conversational AI team as the dedicated engineer for a key enterprise client project. You'll own the full lifecycle — from prompt engineering and knowledge base design to system integration, voice pipeline configuration, and continuous performance optimization. This is an end-to-end ownership role: your decisions directly shape the quality and reliability of a live conversational AI product.
- Design, build, and continuously improve chatbot and voicebot solutions using LLMs, NLU models, and agentic AI frameworks.
- Engineer prompts and structure knowledge bases to ensure accurate, context-aware responses across diverse user intents.




- Build and maintain system integrations across platforms using APIs and data pipelines to enable seamless end-to-end automation.
- Configure and optimize STT/TTS systems for high-quality voice performance and smooth telephony integration.
- Implement AI safeguards and governance measures to ensure safe, reliable, and unbiased model behavior.
- Proactively monitor model performance, identify gaps, and drive optimization without waiting to be asked.
- Document architectures, configurations, and deployment procedures to ensure transparency and reproducibility.
- Collaborate with product, engineering, and business stakeholder teams to align solutions with client goals.

This is for you if you have:
- At least 2-4 years of relevant experience
- Experience with AI models for chatbots or voicebots
- Experience with model evaluation, tuning, and deployment
- Knowledge of conversational AI platforms for chatbot and voicebot development.(Cognigy

📌 AI Engineer (Barcelona)
🏢 M47 - AI
📍 Barcelona