About

About Yausell Ruiz

I’m a software engineer who enjoys turning ideas into simple, reliable, and thoughtful frontend solutions. I care about writing clear code, understanding real user needs, and building tools that reduce friction.

Two tracks

Since 2022 I have worked on the web and mobile frontend of Bitvavo, one of Europe’s largest crypto exchanges, where correctness and performance are the baseline. Alongside the job I founded Auxel Labs, a small product studio, so I regularly ship end to end: research, design, build, launch, support. The two feed each other. The job keeps my engineering disciplined, and the studio keeps me close to what users actually need.

How I split my time

Time
Bitvavo is my full-time job. Auxel Labs runs alongside it.
Permission
Bitvavo knows about Auxel Labs.
Languages
English — Full professional
Spanish — Native
Education
Software Engineering
Universidad de las Ciencias Informáticas · 2003–2008
Publications
Enterprise Portals, Impact on Organizations
Deformation module for deformable objects based on the ChainMail algorithm
Framework for portlet development
Certifications
Leadership Foundations
Collaborative Leadership
Managing Technical Professionals

Timeline

2008 → now

  1. 2025 — Now

    Inbu · Auxel LabsFounder

    Founded Inbu to help expats pass the Dutch integration exams as efficiently as possible: all the Dutch language tools a highly skilled migrant needs, without wasted time or money.

    • Product
    • Next.js
    • Founder
  2. 2022 — Now

    BitvavoSenior Software Engineer

    Web and mobile frontend for one of Europe’s largest crypto exchanges: React, React Native and TypeScript at scale, with real-time market data over WebSockets.

    • React
    • React Native
    • TypeScript
    • Crypto
  3. 2019 — 2022

    Everon × EVBoxSenior Software Engineer · Frontend

    Contributing to a zero-emission future by giving EV charging clients and drivers the best experience on the platform.

    • React
    • TypeScript
    • E-mobility
  4. 2018 — 2019

    Mercado LibreSoftware Engineer

    Data-driven features for the Motors vertical of Latin America’s largest marketplace, supporting Argentina, Brazil, Colombia, Venezuela and Mexico. Santiago de Chile.

    • JavaScript
    • React
    • Marketplace
  5. 2016 — 2018

    Nisum LatamSenior Frontend Developer

    Led full-cycle frontend initiatives for Macy’s with remote teams, wrote critical engagement and acquisition components, and interviewed, onboarded and trained developers.

    • JavaScript
    • Leadership
    • Retail
  6. 2015 — 2016

    IndependentSoftware Engineer

    Service-oriented work for clients in Spain and the USA with IBM SOA, Oracle SOA Suite and WSO2, plus PL/SQL reporting on Oracle 12g. Havana.

    • SOA
    • Web services
    • Oracle
  7. 2010 — 2015

    Universidad de las Ciencias InformáticasUniversity Professor

    Taught web programming (PHP, Java, JavaScript, CSS, HTML, XML, JSON, Ajax) and databases (MySQL, PostgreSQL).

    • Teaching
    • Web
    • Databases
  8. 2010 — 2014

    Centro de Consultoría y Desarrollo de Soluciones SOASenior Web Developer

    Built portal solutions for clients: frontend themes, portlets, multi-source integrations, deployment and support, and led training for multiple teams.

    • Portals
    • Frontend
    • Training
  9. 2008 — 2010

    Video Game Development Area, UCIProject Lead

    Managed teams building custom software and video games, plus PHP portal solutions with Joomla, Drupal and WordPress.

    • Games
    • PHP
    • Team lead

Contact

Let’s build something considered.

For senior frontend roles, product collaborations, or to compare notes on building things next to a day job, email is the fastest way to reach me.

Write to me Email