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Juan Carlos Aravena Esparza

Software Engineer

Amsterdam, The Netherlands|[email protected]

Summary

Software Engineer specializing in frontend development with a focus on accessibility and performance. Full-stack experience building high-traffic applications at scale. Agile practitioner with a team-oriented approach to problem-solving.

Skills

Frontend

JavaScript/TypeScript, React, Next.js, HTML/CSS, Tailwind

Backend

Java, Python, Node.js

Infrastructure

GCP, Docker, Linux/Unix

Testing

Automated Testing, Component Testing, E2E Testing

Familiar

React Native, Rust, Spring, GraphQL, Django, Flask, C/C++, PHP

Experience

Lean Tree

Amsterdam

Senior Consultant

Sep 2024 - Present

Thoughtworks

Amsterdam

Senior Software Engineer

Jul 2023 - Sep 2024

  • Led Web Frontend development for a fashion industry client
  • Migrated Design System library from Web Components to React
  • Improved client-side performance by 20% and server-side speed by 10%
  • Established testing strategy that reduced UI errors significantly

Platzi

Remote (Chile)

Senior Frontend Developer

Oct 2021 - Sep 2022

  • Member of the B2B team, building landing pages and business dashboards
  • Helped resolve performance issues across the platform
  • Contributed to the Engineering Framework for the Platform Team

Evernote

Chile

Software Engineer II

Jan 2021 - May 2021

  • Built Tasks feature using React Native and GraphQL
  • Feature launched as private beta, now generally available

Thoughtworks

Chile

Consultant Developer

Feb 2017 - Nov 2020

  • Full-stack developer in agile teams for international enterprises using Java/Spring and React
  • Co-led React development for payment platform serving 20 countries, driving revenue growth
  • Led migration from Softlayer Cloud to Google Cloud while refactoring for PCI compliance
  • Frontend specialist optimizing performance for multinational retail client

Education

Universidad de Concepción

Concepción, Chile

Ingeniería Civil Informática

Mar 2012 - Jul 2019

Studied Informatics Engineering for 5 years. Strong foundation in Computer Science.