Buenos Aires, Argentina
Tomas
Winicki
Tech Leader at MercadoLibre. From trainee to leading engineering at LATAM scale — plus building products on the side.
Engineering with purpose, leading with clarity.
0+
years at MercadoLibre
0
levels progressed
I'm a software engineer passionate about building products that scale. Starting as a trainee in 2019, I grew through every level at MercadoLibre — shipping features used by millions across Latin America.
Beyond my day job I build my own products. Clasmi and GwaConsultant are projects born from a drive to solve real problems and ship fast.
My work lives at the intersection of mobile craftsmanship, backend architecture, and technical mentorship. Great software is built by empowered teams.
Spanish · English (B2) · Hebrew
Open to relocation & remote · UADE
Spanish · English (B2) · Hebrew
Open to relocation & remote
UADE — Informatic Engineering
6 years, one company, five levels.
MercadoLibre · Buenos Aires
2026 — Present
·Tech Leader
NowTech Leader
+2024 — 2025
·Senior
Senior Android & Backend Engineer
+2021 — 2023
·Semi Senior
Semi Senior Android & Backend Engineer
+2020 — 2021
·Junior
Junior Android Developer
+2019 — 2020
·Trainee
StartIT Trainee — Android Development
+Tools of the trade.
Mobile-first, backend-capable, cross-platform.
Mobile
Backend
Practices
Tools
Certifications
Building beyond
the job.
Clasmi
My own product — built from scratch with a clear vision and obsessive attention to detail. Production-grade architecture, clean code, and a UX designed to feel native and effortless.
GwaConsultant
A website built on request for a consulting firm. Delivered a polished, fast, and professional web presence — from design to deployment.
Let's build
something worth
shipping.
Open to interesting conversations — technical challenges, collaborations, or just connecting with other builders and entrepreneurs.