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Teo Mastro

@teomastro

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I build production multi-agent AI systems, RAG chatbots, and full-stack platforms that automate complex workflows.

Greece

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What I'm looking for

I'm looking to build production AI systems, multi-agent workflows, and RAG applications where I can improve real-world automation, evaluation, and end-user outcomes.

I'm building production multi-agent AI systems and enterprise chatbots at Helvia.ai, including a helpdesk agent that coordinates booking, fare-search, and FAQ subagents to resolve customer requests end-to-end.

I've created automated agent evaluation harnesses that reduced manual testing from six hours to 30 minutes per week, while enabling model comparisons across solutions. Previously at Tessera Multimedia, I architected RAG chatbots, predictive health assistants, and workflow automation products.

I led an OR-Tools scheduling platform for 1,300+ pharmacies that cut assignment time from 40–50 hours to five minutes, and built AI services using Python, LangGraph, OpenAI, pgVector, AWS, and full-stack web technologies.

Experience

Work history, roles, and key accomplishments

Current

Senior AI Software Engineer

Current

Helvia.ai

May 2026 - Present (4 months)

Developing production multi-agent AI systems and chatbots for enterprise clients, built on a custom in-house orchestration platform. Built custom eval harnesses that cut manual testing from 6 hours to 30 minutes per week.

Multi Agent Systems LangGraph Orchestration