Yausell Ruiz

Summary

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.

Experience

1. Founder, Inbu · Auxel Labs

   2025 — Now

   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.

2. Senior Software Engineer, Bitvavo

   2022 — Now

   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.

3. Senior Software Engineer · Frontend, Everon × EVBox

   2019 — 2022

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

4. Software Engineer, Mercado Libre

   2018 — 2019

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

5. Senior Frontend Developer, Nisum Latam

   2016 — 2018

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

6. Software Engineer, Independent

   2015 — 2016

   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.

7. University Professor, Universidad de las Ciencias Informáticas

   2010 — 2015

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

8. Senior Web Developer, Centro de Consultoría y Desarrollo de Soluciones SOA

   2010 — 2014

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

9. Project Lead, Video Game Development Area, UCI

   2008 — 2010

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

Skills

React · Next.js · React Native · TypeScript · Node.js · UI Design · Tailwind · UI architecture · shadcn/ui · Web3 · Supabase · Framer Motion · Testing · Vitest · Performance · Accessibility