Juliana Ospina

Staff Software Engineer at Mercado Libre · Developer tools · compilers, TypeScript

Mercado Libre

Mexico City, Mexico · CST (UTC-6)

12+ years experience

Universidad de Chile

English, Spanish

Co-founder

Messaging unavailable

Overview

Currently at Mercado Libre, where I work on developer tools. Grew the developer experience team from 6 to 35 engineers. Before that: Bradesco and Microsoft. Coffee nerd.

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Answers in batches on Fridays

Skills

TypeScriptcompilersLSPRustCLI design

Co-founderLooking for a co-founder

closes in 3 months

Looking for a go-to-market co-founder for micro-pensions for construction firms

The idea: Micro-pensions for construction firms
Stage: Early revenue
I bring: 6 years in developer tools
Looking for: Commercial co-founder who has sold to enterprises
Commitment: Part-time to start
Location: Mexico City or remote

I bring 13 years of developer tools (currently Mercado Libre). Ideally you've shipped B2B software. Incorporated, self-funded so far.

Mexico City, Mexicocompilerstypescriptlsp

Open

Experience

Staff Software Engineer
Jul 2024 - Present
Mercado Libre · 2 yr 3 mo · Full-time · Mexico City, Mexico
- Built the experimentation framework 6 product teams use to ship changes safely.
- Mentored 10 engineers through their first promotion.
- Led the migration of 48 services to compilers.
Software Engineer
Jan 2021 - Jul 2024
Bradesco · 3 yr 6 mo · Full-time · Mexico City, Mexico
- Shipped a rewrite that took build times from 26 minutes to under 5.
Senior Software Engineer
Jan 2018 - Jan 2021
Microsoft · 3 yr · Contract · Mexico City, Mexico
- Reduced cloud spend on developer experience by 43% in two quarters.
- Shipped 13 launches on the developer experience team without a rollback.
Senior Software Engineer
Sep 2016 - Jan 2018
Cencosud · 1 yr 4 mo · Full-time · Mexico City, Mexico
- Moved 75% of developer experience traffic off a legacy monolith without a customer-facing incident.
- Led the migration of 47 services to Rust.
Software Engineer
Jun 2014 - Sep 2016
iFood · 2 yr 3 mo · Full-time · Mexico City, Mexico
- Reduced cloud spend on developer experience by 38% in two quarters.
- Brought on-call pages for developer experience down from 27 a week to 1.

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Education

Universidad de Chile
Ingeniería, Mathematics
2008 - 2012

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