Esteban Marín

I love difficult problems Software Engineer · Data Scientist · ICPC World Finalist

Curious engineer who's built software everywhere from Series C startups to FAANG-scale systems.

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Experience

2026

Master's Abroad

After my professional experiences in Costa Rica, I was ready for the next level. I packed my life into a suitcase and moved across the world to pursue a Master's degree at one of Spain's top-ranked universities. I wrapped up the coursework with honors, earned the highest possible grade on my thesis, saw snow for the first time, and had the best time of my life.

2025

Big Tech

Microsoft opened the door to Big Tech, where I worked as a Software Engineer on Cosmos DB, Azure's globally distributed, multi-model database serving millions of requests daily. I contributed to the core engine of a system built for planetary-scale workloads and five-nines availability.

2025
2024
2023

Startup Hustle

I traded the corporate playbook for the scrappiness and thrill of the startup world at Thoropass, an end-to-end compliance automation platform. I shipped features used by enterprise customers undergoing SOC 2 and ISO 27001 audits, cutting compliance prep time from months to weeks. My role was as dynamic as the environment: Frontend, Backend, Product Support, Scrum Master, Presenter... I even cooked up a few memes for our LinkedIn!

2022

E-commerce Newbie

I kicked off my professional journey in the coolest way imaginable: snowboards, surfboards, and a whole lot of goats. Backcountry brought me on as an enthusiastic new grad. I built and maintained features across their e-commerce platform, while learning the craft of professional software engineering.

2022
2021

Senior Year

My final year as an undergrad had it all. I was a Teaching Assistant for three courses (Programming Fundamentals, Databases, and Experimental Design) built a game in Unity, and qualified for the 44th ICPC World Finals, the world championship of competitive programming. My team was self-proclaimed "Best Meet-the-Team Video".

Education

Bachelor of Science Computer Science
Universidad de Costa Rica
2018 – 2021 GPA 9.50 / 10
Teaching Assistant for Programming I & II, Databases I, and Experimental Design.
Master of Science Data Science
Universidad Complutense de Madrid
2025 – 2026 GPA 9.18 / 10
Thesis: Monitoring noise pollution in Madrid using clustering and predictive models for time series.

Projects & Research

Ruido Madrid

Thesis

My graduate thesis on monitoring noise pollution in Madrid using clustering and time series modeling, awarded a 10/10 (Matrícula de Honor). Check it out at ruidomadrid.com and see the future!

Truco Mineiro

Game

The traditional Brazilian card game, built from scratch with a beautifully minimalist UI designed to get out of the way and let you play. Try it!

Angry Blocks

Game

A 2D physics-based puzzle game built in Unity (C#) for a university game-development course. Launch and stack blocks, topple structures, and master the trajectory and momentum needed to clear each hand-designed level. Start toppling!

Skills

Frontend

ReactNext.jsAstroStorybookFigma

Backend

DjangoSpringNode.jsFastAPI

Databases

PostgreSQLMongoDBRedisSupabase

Programming Languages

PythonC++JavaTypeScriptSQL

Data Science

RSASMachine LearningTime Series

DevOps

JenkinsTerraformDockerKubernetesGrafanaDatadog

Cloud

AWS
S3EC2
Azure
Cosmos DB
GCP
Vertex AI

Natural Languages

Spanish (Native)English (C1)French (B2)