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Hi! I am Leandro.

FULL-STACK DEVELOPER
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01. Introduction

I'm Leandro - a full-stack developer, data architect and tech leader from Buenos Aires, Argentina with 20+ years of experience. I design high-impact, end-to-end solutions spanning 120+ TB database estates, real-time streaming pipelines, AI and blockchain.

I'm currently available for freelance work and consulting projects. I believe in transparency - no selling empty promises or magical solutions. Just real-world systems that will be online forever without architectural problems.

Leandro - Full-stack Developer and Data Architect
Portrait of Leandro

This Guy

  • A strategic thinker who transforms complex problems into elegant solutions.
  • Driven by innovation and obsessed with performance optimization.
  • A collaborative leader who bridges technical and business requirements.
Download Resume
Problem Solver
Innovation Driven
Performance Focused
User Centric

02. Currently Working On

Currently serving as Data Engineer at DGUIAF (Ministry of Finance of GCBA), I lead the development of cutting-edge statistical and logistics software for government entities across Argentina. My role involves architecting enterprise-level solutions that handle complex data processing requirements while maintaining the highest standards of security and compliance.

In collaboration with Madero Solutions, I'm spearheading the creation of a transparent tenders platform that revolutionizes government procurement processes. This project leverages Rust APIs and Rust WebSockets to deliver real-time updates, implementing sophisticated vendor pooling algorithms that optimize supplier selection and reduce costs for public institutions.

The platform integrates advanced microservices architecture with cloud infrastructure to ensure scalability and reliability. We're building robust data pipelines that process millions of transactions while maintaining sub-second response times, making government procurement more efficient and transparent than ever before.

Previously, I've collaborated with multinational companies including Pfizer, Walmart, Prosegur, and AXA Assistance, delivering enterprise-level solutions across healthcare, retail, security, and travel industries. These experiences have given me deep insights into diverse business domains and the technical challenges of serving global organizations.

03. What I Can Do

From quick MVPs to platforms that quietly run for years. I turn fuzzy ideas into clear plans, then into software that ships on time and doesn’t wake you at 3 A.M. Clean architecture, honest trade‑offs, and performance that feels fast because it is. No hand‑waving, no magic—just work you can explain to your team without a whiteboard (and with fewer meetings).

  • digital acceleration
  • hybrid and multi‑cloud solution architecture
  • enterprise software architecture
  • database performance auditing and optimization
  • process automation
  • digital wallets and cryptocurrencies
  • business intelligence
  • cybersecurity
  • data science
  • cloud computing
  • accessibility consulting
  • compliance and regulatory consulting (ISO, GDPR, PCI DSS)
  • strategy consulting
  • digital transformation consulting
  • AR/VR development

Quantifying two decades of building robust, scalable solutions

Two decades of turning complex problems into elegant solutions. Every number tells a story of innovation, persistence, and real-world impact.

20+
Years Experience
150+
Projects Completed
120+
Databases Managed
2M+
Lines of Code
99.9%
Uptime Percentage
50+
Clients Served
15+
Programming Languages
30+
Frameworks Mastered
25+
Database Technologies
8+
Cloud Platforms
12+
Professional Certifications
100+
Developers Mentored
20+
Tech Conferences
3
Patents Filed
200+
APIs Built
25
Security Audits

The Fun Stuff

(What I tell my friends)

Coffee Consumed
5000+
Bugs Fixed
85
Databases Optimized
47
Emergency Fixes
Ready to add your numbers to these stats?

05. Selected Projects

Transparent Tenders Platform

Licitar · 2025
Transparent Tenders Platform screenshot

End‑to‑end public tendering platform that makes procurement 100% traceable and auditable. Built with Rust and event‑driven…

Intelligent Crime Map

Gobierno de Cordoba · 2025
Intelligent Crime Map screenshot

System for the Government of Córdoba that processes crime reports in real time, applies machine…

Enterprise Data Pipeline Engine

DGUIAF · 2025
Enterprise Data Pipeline Engine screenshot

Data engine for DGUIAF able to ingest, transform and distribute data in real time from multiple…

Healthcare Analytics Dashboard

Ministerio de Salud · 2025
Healthcare Analytics Dashboard screenshot

Platform for multinational pharma (including Pfizer) enabling real‑time clinical and…

LARES Assistance CRM/ERP Platform

LARES · 2025
LARES Assistance CRM/ERP Platform screenshot

End‑to‑end platform centralizing LARES Assistance operations: case management, customer…

Retail Supply Chain Optimizer

Walmart · 2024
Retail Supply Chain Optimizer screenshot

Machine learning solution deployed at Walmart to predict demand per store and…

Enterprise Security Monitoring

Lojack/Prosegur · 2024
Enterprise Security Monitoring screenshot

System for Prosegur/Lojack centralizing real‑time monitoring of thousands of…

Let’s build something useful. No fluff.

If you need a steady pair of hands—someone who ships, communicates clearly, and won’t oversell—I’m your guy. We’ll choose the right trade‑offs, keep costs predictable, and deliver software your team will be happy to live with.

Let's talk

06. Community & Writing

I write guides and share hard‑won lessons that help developers ship reliable software.

I believe good engineering is generous. I publish practical, field‑tested articles—from databases and backend architecture to DevOps and frontend craftsmanship—so teams can avoid the usual traps and ship with confidence. No fluff, no hype: just clear steps, trade‑offs explained, and patterns you can use tomorrow.

20k+
Followers
500k+
Reads
50+
Posts

07. Get In Touch

Let's work together

Email

leandro@digitalpollution.com.ar

Phone

+54 9 11 4194-7685

Location

Buenos Aires, Argentina

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