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Building scalable backends and serverless architectures on AWS.

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// who i am

About

Paolo Cetti

// córdoba, ar

Systems Engineer (UCC) focused on backend and cloud. I currently build and scale Leanmote's platform, designing serverless infrastructure on AWS and working closely with the CTO on technical decisions.

Before Leanmote, I built AI solutions at Pi Data (a WhatsApp bot for events with 300+ attendees, an LLM-powered email triage system used by government agencies), shipped scrapers across 10+ countries at Qanlex, and got my first formal dev job at Omixom while still in technical high school — migrating an agro-climate IoT platform to microservices.

I particularly enjoy when an architectural change becomes measurable — like migrating a critical PHP query that took 40 seconds to a Python Lambda that resolves it in 5–10s. I also integrate AI tools (Claude Code with subagents, git worktrees, custom skills) into my workflow as part of the craft, not as an extra.

Currently preparing for the AWS Solutions Architect Associate certification.

  • 5+

    years coding

  • 4

    companies

  • AWS

    Cloud Practitioner

  • 8.97

    GPA — Systems Eng.

// where i've worked

Experience

  1. Nov 2025 — PresentCurrent

    Full Stack Developer

    Leanmote·Remote

    SaaS platform for engineering teams. Working directly with the CTO on the development and scaling of the platform.

    • Designed and maintain serverless infrastructure on AWS: Lambda, API Gateway, RDS MySQL, Cognito and S3.
    • Migrated critical PHP aggregated-data queries (~40s) to Python Lambdas, reducing response time to 5–10 seconds.
    • Modernized the authentication system by implementing AWS Cognito.
    • Python
    • AWS Lambda
    • API Gateway
    • RDS MySQL
    • Cognito
    • S3
  2. Feb 2025 — 2026

    AI Engineer

    Pi Data Strategy & Consulting·Córdoba, Argentina

    Data strategy and AI consultancy. Designed and shipped LLM-powered solutions for clients across multiple sectors.

    • Built a WhatsApp bot powered by AI for events with 300+ attendees: giveaways, FAQs, real-time notifications.
    • Shipped a core consultancy product: an LLM-based email triage system used (among others) by government agencies.
    • Designed and tuned prompts for production NLP pipelines on Microsoft Azure.
    • Python
    • Azure
    • LLMs
    • NLP
    • RAG
    • Prompt Engineering
  3. Jan 2025 — Mar 2025

    Backend Developer

    Qanlex·Florida, US · Remote

    US-based litigation finance company using public court data to identify investment opportunities. Worked on backend data extraction at regional scale.

    • Developed and maintained Python scrapers for public litigation data across 10+ LATAM countries.
    • Implemented relevance filters (claim amount, case type) to flag potentially useful cases.
    • Deployed scrapers on AWS with scheduled executions for fresh data and high availability.
    • Python
    • AWS
    • Web Scraping
    • MySQL
  4. Sep 2021 — Aug 2022

    Backend Developer

    Omixom Ingeniería·Córdoba, Argentina

    Argentine IoT and environmental-monitoring company (weather stations, river/tank sensors, silo control) with clients like Zuccardi. My first formal dev job — joined while still in technical high school.

    • Developed Python/Django backend modules for an agro-climate metrics platform with national coverage.
    • Participated in the migration to a microservices architecture using Flask.
    • Worked with Git, Docker and Scrum on a professional team workflow.
    • Python
    • Django
    • Flask
    • Docker
    • Git
    • Scrum

// selected work

Projects

2025 · Final degree project · UCC

SaveApp

Mobile app for managing bank-card benefits and promotions in Argentina.

Final degree project (UCC), built as a team. I designed and implemented the backend: data modeling, REST APIs for promotion lookup and filtering, business validations and modular architecture prioritizing scalability and maintainability.

  • Python
  • REST API
  • MySQL
  • Mobile

2024 · Pi Data Strategy & Consulting

RAGPi

Modular RAG system for queries over structured and unstructured data on Azure.

Retrieval-Augmented Generation pipeline combining semantic retrieval with LLM generation. Service-oriented architecture lets retrieval, embeddings and generation scale independently.

  • Python
  • Azure
  • LLMs
  • RAG
  • NLP

2025 · Qanlex

Qanlex Web Scraper

Serverless multi-country court-data scraper deployed on AWS.

Automated Python scraper for public court data across LATAM. EC2 for scheduled processing, Lambda for on-demand, EventBridge for orchestration, MySQL for persistence. CI/CD on GitHub Actions.

  • Python
  • AWS Lambda
  • EventBridge
  • EC2
  • MySQL

// tools of the trade

Stack

Languages

  • Python
  • JavaScript
  • TypeScript
  • SQL

Cloud (AWS)

  • Lambda
  • API Gateway
  • RDS
  • Cognito
  • S3
  • EC2
  • EventBridge

Backend

  • REST APIs
  • Serverless
  • Microservices
  • Django
  • Flask

Databases

  • MySQL
  • PostgreSQL

AI / ML

  • LLMs
  • RAG
  • NLP
  • Prompt Engineering

DevOps

  • Git
  • Docker
  • GitHub Actions
  • Scrum

// education

Education & Certifications

2022 — 2025

Universidad Católica de Córdoba

Engineer's degree, Systems Engineering

  • GPA 8.97 / 10 — degree completed one year ahead of the official 5-year plan.
  • Final project: SaveApp — mobile app for managing bank-card benefits.
  • Studied alongside professional work, applying coursework to real projects.

Certifications

  • AWS Certified Cloud Practitioner

    Amazon Web Services

    2026
  • First Certificate in English (B2)

    Cambridge

    2019

// thoughts

Latest writing

// soon

Writing soon — first article on its way.

// contact

Let's talk

Open to backend, cloud and AI engineering roles. Always up for a good conversation.