z-nexus
ES
Cristiam Castillo

Who is behind Z-Nexus

Cristiam Castillo

I'm the one who builds and maintains Z-Nexus's software. I've spent over 15 years developing software end to end: researching, prototyping, shipping and validating with real users, over and over.

I started in electronic engineering, then moved through scientific research, media, digital government and startups, and today I build my own products and custom software for other companies. I also work with machine learning and language models, and use them every day to deliver better and faster.

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Track record

Where I've built software

  1. 1999 – today

    Casadeplaya.com

    In charge of web development and the business model of a portal for houses, apartments and land on Peru's beaches. We improved the platform and the user experience: visits tripled and listings doubled.

  2. 2017 – 2020

    Digital Government Secretariat, PCM

    Software development lead on the team that created and launched gob.pe to bring citizens closer to the State, with almost 40 million page views. We defined base guidelines to bring those good practices to the whole government.

  3. 2015 – 2017

    Jicamarca Radio Observatory, Geophysical Institute of Peru

    Innovation and research engineering on the atmosphere and the ionosphere: design and implementation of a wind profiler radar and large-scale radar data processing.

  4. 2006 – 2010

    Apoyo Publicaciones, Semana Económica

    In charge of technology and systems. We launched the Semana Económica site in six months and grew the morning newsletter from 5,000 to 45,000 subscribers, making sure it arrived every day at 9 a.m.

  5. 2002 – 2006

    Seminarium Perú

    In charge of systems at an executive education company: infrastructure, communications and web applications, with internet telephony that lowered communication costs.

  6. Since 2020

    Able.co

    Software engineering on a platform that connects lawyers with nonprofits to provide free legal assistance, and on an internal tool to measure and improve engineering team performance.

Education and tools

What I work with

  • Electronic Engineering, Pontificia Universidad Católica del Perú.
  • MBA, CENTRUM PUCP.
  • Ruby on Rails, JavaScript and React, Python.
  • PostgreSQL, MySQL, Elasticsearch, Redis.
  • Machine learning and language models.

Besides Casadeplaya, I drive Mailerball, veci and Bokea, and the free services of datitos.app.

Cristiam Castillo in front of a valley at sunset Cristiam Castillo with a cat among stone ruins

Let's talk

Tell us what you need and we'll reply by email.

Contact us