Walter Jay Français

Freelance developer

Hi, I’m Walter. I build fast, useful web tools.

And I’ve been on the blockchain for 10 years. I work in English and French, from wherever I happen to be.

Email me See my work
The WJ monogram.
  • Since November 2016 on the blockchain. See my Hive account
  • French and English Born in France, teenage years in Wellington, New Zealand.
  • 30+ countries visited so far. The goal: 99 in my lifetime.

What I do

  • Web tools and apps

    You have a process, a spreadsheet or an idea that should be a tool. I design it, build it, test it and put it online.

  • Fast websites that search engines and AI can read

    Sites that load instantly and work on any phone, with the structured data, sitemap and llms.txt that help search engines and AI assistants understand and cite them.

I build with AI coding agents. Every change is tested and reviewed by me before it goes live.

Selected work

  • Website · 2026

    whatishive.com

    A plain-language guide to the Hive network, rebuilt in September 2026.

    • One static page: no framework, no build step.
    • Structured data, llms.txt and a sitemap, so search engines and AI assistants can cite it.
    • Light and dark mode, works on phones, strict security policy.
    • Every change runs HTML validation, a test suite and Lighthouse. Nothing goes live if a test fails.

    Visit whatishive.com

  • Web app

    HiveKPI

    Live analytics and tools for the Hive network.

    • Network health at a glance, and a dashboard for any account.
    • Revision History: every version of a post ever published, including deleted ones, with the block and transaction as proof.
    • No keys, no sign-up: just a username.

    Visit hivekpi.com

  • Test app · 2026

    Hive Chain Mini

    An experiment: a light, friendly Hive front end for people who are brand new to the network.

    • Browse communities, posts and profiles without an account.
    • Log in with Hive Keychain or HiveAuth to upvote, comment, post and follow. Your keys never touch the app.
    • No token values anywhere, no downvotes, and errors in plain language.
    • Fully static: no backend, just the browser talking to public Hive nodes.

    Try app.walterjay.fr

My story

Learn

  1. Back in France after five years in Wellington, New Zealand, where I learned English. Curious about how computers work.
  2. 2015–2020 Computer science at Epitech in France. I learn a lot more about programming, and learn how to learn.
  3. 2018–2019 Two semesters abroad at Chung-Ang University in Seoul, South Korea.

Build

  1. My first blockchain post. I name my two passions: blockchain and travel.
  2. 2017 onward Learning by doing: wallets, tokens, NFTs, games.
  3. Hive launches, and my account moves with the community.
  4. 2020–2022 Two years at a blockchain fintech company. Then I quit to travel the world.

Explore

  1. My first trip, on my own: Georgia and Greece.
  2. Three months in Asia: Indonesia, Singapore and Malaysia. The stories are on my travel blog.
  3. Back to Asia for three more months. It starts at HiveFest in Kuala Lumpur, then Borneo, Brunei, the Philippines, Taiwan and Vietnam.

Now

  1. I rebuild whatishive.com, keep improving HiveKPI and try a light Hive front end for newcomers.
  2. 10 years on-chain.
  3. Next Working from anywhere, on the way to 99 countries.

Have a project in mind? Let’s talk.

Email me

Writing and travel

Get in touch

The quickest way to reach me is email. Tell me what you want to build, and I’ll reply.

[email protected]