Hello, I'm Luis Zermeno
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AI Application Engineer
Building Production-Ready LLM Applications
Specialized in developing practical AI solutions with LangGraph, Flask, and Claude. I design multi-agent systems, full-stack web applications, and voice AI applications that solve real business problems. Background in recruitment gives me unique insight into building tools people actually want to use.
Python • Flask • LangGraph
Recent AI Projects
Spralingua - AI German Teacher
An AI-powered German language teaching assistant that provides personalized lessons, grammar correction, and conversation practice using advanced language models.
View DetailsAbout Me
I'm an AI Application Engineer focused on building production-ready LLM applications that solve real business problems. After spending a year deep in AI development—from multi-agent systems to RAG pipelines to voice AI—I'm now seeking opportunities to build impactful AI applications in Europe.
My approach combines technical implementation with practical thinking. Before transitioning to AI engineering, I spent 4+ years as a Talent Partner, which taught me how to identify what users actually need versus what sounds impressive on paper. This background helps me build AI tools that people want to use, not just technically interesting demos.
I specialize in Python-based LLM applications using LangGraph for agent orchestration, Flask for full-stack web applications, and Claude/GPT-4 for reasoning tasks. My projects focus on practical applications: a multi-language learning platform with real-time AI tutoring, voice-enabled interactions, and production-ready deployment on Railway.
I'm looking for AI Application Engineer roles where I can contribute to building, deploying, and iterating on LLM-powered products—not training models, but making them useful.
Certifications
M.B.A.
International Business Administration
Karlshochschule International University 2019-2021Hugging Face Agents Course
Certificate of Excellence
Hugging Face 2025
The MCP Course: Unit 1
Fundamentals of MCP
Hugging Face 2025
Technical Skills
Languages & Frameworks
Python (Primary)
LangGraph- LangChain
- Flask
- SQLAlchemy
LLM & AI Tools
- OpenAI API (GPT-4)
Anthropic Claude
Ollama (Local LLMs)
Langfuse (Observability)
Databases
- PostgreSQL
Development & Deployment
Git & GitHub- Railway
- Gunicorn
- Claude Code
AI Specializations
- Multi-Agent Architecture
- Prompt Engineering
- RAG Systems
- Voice AI (TTS/STT)
- Agent Design Patterns
Featured Experience
Talent Partner
Full-cycle recruiter for revenue and financial teams, specializing in SaaS and Fintech sales roles across DACH, Benelux, Spanish, French and Italian regions.
Talent and Coordination Partner
Created and executed a new coordination automation process for 180+ employees, while serving as a full-cycle recruiter for tech roles.
Get In Touch
Feel free to reach out to me for collaborations or just a friendly chat.
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