Freelancer profile translated to English.

Description

Software Engineer with over 8 years of experience and a Master of Science in Computer Science (CICESE). I specialize in evolving complex monolithic architectures into scalable microservices using Python and Ruby on Rails.

Currently, I connect Software Engineering with Data Science. My recent focus is on building AI Agentic Workflows and Retrieval-Augmented Generation (RAG) systems, optimizing search engines using FAISS, vector databases, and LLMs (OpenAI/Transformer models).

I am passionate about operational excellence, leveraging AWS (ECS, Fargate) and GitHub Actions to automate CI/CD pipelines, reducing deployment friction and ensuring high availability.

Main stack: Python (FastAPI), Ruby on Rails, AWS (ECS, RDS), Docker, Terraform, NLP, Vector Search.

Languages

Spanish
Native or bilingual
English
Basic

Workplace preferences

Remote only

Primarily works remotely

Kinedu, Remoto
Backend Team Lead
EDUCATION AND E-LEARNING
October 2021 - Today (4 years and 10 months)
Monterrey City, Mexico
80% reduction in backend errors through systematic refactoring and improved development practices. Optimization of critical endpoints with a 70% reduction in response times. Design and implementation of microservices in AWS ECS:
• Recommendation Engine: Content ranking system using decision trees (response time <0.05s).
• Contextual Search Engine: Implementation with multilingual-e5-small and FAISS for vector search. Data Architecture: Support for analytical platform with Hevo, DBT Cloud, BigQuery, Tableau, and Looker Studio. Quality: TDD/BDD with pytest, >85% coverage, CI/CD pipelines with GitHub Actions.
Technologies: Python (FastAPI), PostgreSQL, AWS (ECS, RDS), Docker, Terraform, FAISS, DBT, BigQuery.
AWS FastAPI Ruby on Rails rollbar Datadog
Multiva,
Software Engineer
January 2019 - January 2021 (2 years)
Mexico City, CDMX, Mexico
Development and maintenance of an accounting system for ATMs, complying with banking regulations.
Implementation of critical functionalities with transactional integrity guarantee in high concurrency.
Optimization of stored procedures in PL/PgSQL and data modeling with advanced PL/PgSQL. Technologies: Python, Django, MySQL, transactional systems.

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M.Sc.
CICESE
2017
M.Sc.
B.Sc. in Systems and Information Technologies
Universidad Anahuac
2017
Ing. en Sistemas y Tecnologías de la Informacion

Roberto Nazariega

Software Engineer

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