Juan Cruz Viotti

Founder @ Sourcemeta
5.0
(2 reviews)
Fractional CTO, O'Reilly author, JSON Schema TSC, Open-Source Maintainer
United Kingdom Active this month

Services

$360 / month

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  1. 1 Free intro call
    No card needed to book.
  2. 2 Ongoing calls + chat
    4 × 60-min calls per month, unlimited Q&A. Replies in 24 hours or less.
  3. 3 No lock-in
    Month to month, no contract.
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MentorCruise summary

Juan Cruz is the Founder of Sourcemeta and a fractional CTO. He has more than 12 years of experience in software engineering and leadership across early-stage startups and mid-size companies, and he is an O'Reilly co-author and member of the JSON Schema Technical Steering Committee. He helps non-technical founders plan technical work, shape software architecture, and hire developers or agencies.

Based on 2 verified mentee reviews

  • Two reviewers praise his dedication to solving problems and helping them form a clear plan forward.

About

Hey there! I'm an accomplished computer scientist and engineering leader with more than 12 years of experience mostly across early stage startups, and mid-size companies across industries that include APIs, Data, and Internet of Things. Right now I'm CTO at my own startup and do plenty of consultancy on my areas of expertise (high-performance software, data management, and JSON Schema).

FOR NON-TECHNICAL FOUNDERS: Are you looking to launch a startup but lack the necessary technical skills in your team? I can play a CTO role in our meetings, give you tons of advice and architecture help to get you going, and we can keep talking over time! We can create entire plans together and I can even help you hire developers and/or outsourcing agencies to do the work.

Some facts about me:

- I'm the co-author of the O'Reilly book "Unifying Business, Data, and Code: Designing Data Products with JSON Schema", which proposes that data quality is the main bottleneck for effective AI and teaches a practical methodology to think about and fix the data quality problem

- At the University of Oxford, I won the 2022 CAR Hoare prize for the best dissertation and accompanying papers in the area of Software Engineering for my research around JSON BinPack (https://jsonbinpack.sourcemeta.com) JSON BinPack made a breakthrough on 40 years of space-efficient telecommunication and binary serialisation technologies, being more space-efficient than 13 other popular technologies in every single tested case (https://arxiv.org/abs/2211.12799) I'm continuing to develop this technology for reducing satellite data transfer costs on Robotics, IoT, and Automotive

- I'm a member of the Technical Steering Committee of JSON Schema (https://json-schema.org) the world most popular schema language, which powers virtually every API specification such as OpenAPI, AsyncAPI, RAML, and others. I'm the key provider of commercial JSON Schema tooling at Sourcemeta (https://www.sourcemeta.com) and I also maintain the popular Learn JSON Schema website (https://www.learnjsonschema.com/2020-12/) I'm developing the world's fastest JSON Schema validator, providing nano-second validation for developing low-latency APIs

- I'm also a prolific open-source maintainer. I've been involved with projects like Node.js (as an architect behind their Single Executable Applications initiative), I created the popular Etcher IoT image flashing cross-platform desktop application (within the top 700 public repositories on GitHub), and now lead my own open-source foundation (https://www.sourcemeta.com)

What mentees say

5 out of 5 stars

Juan has been amazing, he goes over the top to help and I highly recommend him!

Jose

Jose

Standard Plan • 9 months

Jose wrote 1 more review for the same mentorship

5 out of 5 stars

Juan has gone above and beyond for me. His dedication to helping me solve my problems was the breath of fresh air I needed. His knowledge got me out of a bad situation and helped me form a real plan on how to move forward. I can't see anybody not being fully satisfied with him as a mentor. He helped me crawl out of the hole I was in. I feel like I have a real path to success with him in my corner. Thank you Juan!

Jose

Jose

What happens when you start

You tell Juan Cruz your goals. They see exactly what you want to work on before session one.

You meet within days. Juan Cruz reviews your application and books your first session, usually within a day or two.

You leave with a plan. Concrete next steps and a weekly rhythm from your very first week.

Start your mentorship