Open to opportunities

Hernán Farías

@hernnfaras

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Senior Full Stack Engineer specializing in AI-native systems, autonomous agents, and scalable cloud architectures.

Argentina

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What I'm looking for

I seek roles building production AI-native platforms and autonomous agent workflows at scale, with emphasis on privacy, automation, and team mentorship.

I am a Senior Full Stack Engineer with over 8 years building high-scale, performant, and resilient cloud systems focused on AI-native applications and automation.

I design and deploy recursive LLM agents, RAG architectures, and AI orchestration using tools like LangChain and LangGraph to turn complex research into user-centric products.

I have led technical initiatives from zero to thousands of users, improved adoption for internal security products, and built distributed microservices handling millions of requests per hour.

I mentor teams, drive architectural decisions across backend and frontend stacks, and prioritize privacy, formal verification, and resilient system design to deliver production-ready AI solutions.

Experience

Work history, roles, and key accomplishments

Technical Leader

Macamedia

Jan 2019 - Dec 2022 (3 years 11 months)

Acted as primary architect for backend and frontend systems, managed cloud infrastructure on AWS and DigitalOcean, and scaled the engineering team from 3 to 16 while delivering client-facing mobile marketplaces from ideation to launch.

AWS DigitalOcean Team Leadership Agile CI CD Mentorship

Cross Platform Engineer

MercadoLibre

Jan 2019 - Dec 2022 (3 years 11 months)

Designed and deployed recursive LLM agents and AI orchestration to automate internal code-processing workflows and built AI-driven tools that increased internal security product adoption from 0 to 200+ teams while maintaining distributed microservices handling millions of requests per hour.

LangGraph Go Python RAG N8n BigQuery Microservices Nginx

Fullstack Developer

Macamedia

Jan 2017 - Dec 2019 (2 years 11 months)

Built and secured RESTful APIs and responsive SPAs, integrated third-party services (MercadoPago, ElasticSearch, Google Geocoding) and developed cross-platform mobile apps to support production client platforms.