Aug 2025 - Current· Present
Software Developer
Mercado Libre · Remote
Drives infrastructure sharding and cross-team initiatives at LATAM scale.
Based in Córdoba, Argentina
JUAN CRUZMEDINA
Backend engineer crafting distributed systems that scale across Latin America
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Skills: Java, Go, .NET, Python, AWS, React, Next.js, PostgreSQL, Grafana, Datadog, Kubernetes, Microservices, DDD, TDD, FastAPI
About & Experience
THE DEVELOPER
Backend developer building distributed microservices at scale. Currently at Mercado Libre, working with Java, Go, and Python to deliver high-impact solutions across Latin America.
Aug 2025 - Current· Present
Software Developer
Mercado Libre · Remote
Drives infrastructure sharding and cross-team initiatives at LATAM scale.
↓
About
THE DEVELOPER
Backend developer building distributed microservices at scale. Currently at Mercado Libre, working with Java, Go, and Python to deliver high-impact solutions across Latin America.
Recent Roles
EXPERIENCE
Feb 2024 - Current· Present
Co-Founder & Software Engineer
Prestige Rewards · Remote
Co-founded the product; led a 3-engineer team from zero to functional prototype.
Apr 2025 - Aug 2025
Senior Full-Stack Developer (Tech Screening Specialist)
Wizippo · Denver, Colorado
Designed technical screening systems and raised hiring quality through live problem-solving sessions.
Apr 2022 - Feb 2025
Software Engineer
Voxel Group · Barcelona, Spain
Led technical debt reduction and a monolith-to-microservices migration initiative.
Selected Work
PROJECTS
Latest Learnings
LEARNINGS
#TitleDate
01ASYNC RETROSPECTIVES
How to stop wasting time filling the board and start using it for what matters
DOCUMENTING WITHOUT LOSING YOUR MIND IN THE PROCESS
How to turn the work you're already doing into documentation others actually use.
WHY ABBREVIATING ISN'T NECESSARILY THE BEST OPTION
Abbreviating variable, function, or type names saves keystrokes but can cost readability and maintainability. When it helps and when it doesn't. Aimed especially at junior developers.
Let's work together
GET IN TOUCH
Open to new opportunities and collaborations. Reach out for consulting, freelance work, or just to say hi.