Hi! I'm
Alexis Mansilla
<Software Developer/>
Software Developer specialized in AI and ML, focused on LLM architectures, multi-agent systems, RAG, and scalable backends.
About Me
Introduction
Software Developer specialized in Artificial Intelligence and Machine Learning, with over 4 years of experience building scalable applications and intelligent production systems.
I focus on designing and implementing architectures for LLM-based solutions, multi-agent systems, and RAG, applying sound engineering practices to build robust and maintainable products.
I bring strong backend experience with Node.js, TypeScript, Python, Elixir, and Golang, working with SQL and NoSQL databases as well as scalability-oriented patterns and architectures such as CQRS, Event Sourcing, and distributed design. I combine product vision with the technical depth needed to design, build, and evolve AI solutions with real impact.
Want to know more about my work and experience? Schedule an interview with me.
Experience
Work History
Software Engineer (AI) @ Grupo ROISA
I designed and developed modular multi-agent architectures for AI solutions, orchestrating multiple LLMs with LangGraph and LangChain, with end-to-end observability using LangFuse and SigNoz.
Software Engineer (AI/ML) @ Athletia
I designed and developed a sports performance analysis platform applying Computer Vision and Generative AI to evaluate soccer training videos.
Full-stack Developer @ Skillfitai
I developed an AI-based job search platform (Stack AI).
Software Engineer @ NxLabs.io
I designed and implemented a multi-tenant SaaS architecture using Hexagonal Architecture, Event Sourcing, and CQRS, leveraging Commanded as the CQRS/ES framework and EventStore as the event database in Elixir, ensuring data isolation and full traceability across tenants.
Full-stack Developer @ lösen
I designed and developed an automotive after-sales system with microservices and vector search.
Full-stack Developer @ Udemy
I contributed to the development of a footwear e-commerce platform with a team of 4 developers.
Full-stack Developer @ Freelance
I created custom solutions for clients, including payment integrations (Stripe, PayPal) and custom forums.