Builder by day. Curious the rest of the time.I learn, I create, I share, and I live a little
I develop experiences, mostly on the web, with AI woven through everything: studied, sharpened against, embedded. I have an eye for UI and UX and I take it seriously, and I trust the user enough to hand them something unique, the way a cook trusts a touch of umami to change the whole dish. By day I lead a team of developers. The rest of the time I collect what sharpens me: ideas, visions, perspectives, and the tools I swear by. That collection became Tooolbox.
Services
What I do for youSix ways I can help, from a fast new website to the AI tools your team runs on.
- Websites and web experiencesFast, bilingual websites that look like you and that your team runs on its own: designed, built and launched, from a five-page site to a full web experience.
- AI apps and internal toolsAI that does real work in your business: assistants, agents and internal tools that automate the repetitive parts and connect to the systems you already use.
- Turnkey solutionsOne person from idea to launch: strategy, design, development, hosting and the tools to run it, delivered ready to use.
- ModernizationMove an aging site, app or system onto a fast, modern stack without losing what works: your content, your rankings and your team’s habits.
- UI/UX and product designInterfaces people understand at first glance: research, flows, prototypes and design systems, designed by someone who also builds them.
- Tech consultingA clear, independent opinion on your technology: architecture, AI strategy, stack choices and the plan to get from where you are to where you want to be.
Selected work
Live and maintainedMindsteps
From anxious thoughts to calm next steps. A board sorts what you take on now, later, or have already done, and a Calm tab of breathing, grounding and focus exercises is there for when starting feels like too much.
VisitAléoresto
A restaurant roulette for wherever you are: one tap picks somewhere open right now, as far as you feel like walking, biking or driving. Roll for two sends a friend a link and lands on a place you both want, and a dinner reminder asks before you default to the usual.
Read the case study
ProductTrvlBuddy
AI-powered travel planning: multi-destination itineraries, local discovery, and offline-capable PWA for trips worldwide.
Visit
Games — PlaydatePlaydate games
Little games for Panic's Playdate handheld: the Bureau trilogy, Push and Pool, My Parking Spot!, and more, all on itch.io.
Visit
ProfessionalBath Fitter Design Studio
Design your own bathroom: start from a look, configure real Bath Fitter products in their real colors and finishes, and see the result rendered right in a photo of your own space.
Cadence
Every AI agent you use, in one room, sharing one brain. A Mind that never forgets a decision. Local models thinking in the background. A voice that answers when you talk. Nothing ships until it is proven. It plans, designs, builds, debugs and presents.
Featured challenge
10 sites in 10 daysTen complete websites, shipped in ten days. I built an AI-powered workflow that combines intelligent agents, context building, and automation to develop exactly the way I would: code standardization, full content generation, Sanity CMS, and Next.js best practices, every time. Each site is a plug-and-play solution. It is like having my own development team working at lightning speed. Every site is live, so open them and click around; the content in them is placeholder.
Read the case studyI like being on top of the wave. And when I fall, I fall like a snowboarder: controlled, up fast, back on the snow.
Past experiments
Retired, rememberedNot everything I build stays online, and that is the point. Each of these was a question I wanted to answer. They are offline now, but every one of them left something behind in how I work.
- 2024One Good ThingA daily gratitude PWA: one good thing a day, nothing more. Taught me how far a single well-made interaction can carry an app.
- 2024IOUBill splitting and expense tracking gamified with Gemini. Proof that money apps do not have to feel like spreadsheets.
- 2023Simpl AIA deliberately tiny GPT chatbot, built when the API was brand new. The exercise was restraint.
- 2023//DoubleSlashNote-taking for developers: syntax highlighting, autosave, search. The notes app I wanted while learning.
- 2023Gym SchedulerA fitness management system for trainers: clients, notes, communication. School project that outgrew its brief.
- 2023MatchingCoffeesA dating app matching people on coffee preferences. Silly premise, serious full-stack build.
- 2022Essmei BandanasAn e-commerce storefront for handmade bandanas. Early lessons in catalog, cart and checkout flows.
- 2022whatsaround.meA local exploration companion suggesting spots tailored to your taste. Its restaurant corner later grew into Aléoresto.
- 2022webcity.dev → ontheweb.agency → matandessaur.meAn agency built with a friend. When his life got too busy, it grew into my solo practice, ontheweb.agency, and today it lives under my own name: matandessaur.me, the site you’re on.
Professional journey
The resume, in short- 2024 — present
Bath Fitter — Saint-Eustache
Junior Developer Intern → Full-Stack Developer → Lead Developer → Web Team Lead
Leading a team of 3–6 developers and the architecture, CI/CD and release standards across frontend and backend. Replatformed bathfitter.com and bainmagique.com onto Next.js and Builder.io (~50% faster), took an AI bathroom visualizer from two proofs of concept to production in 3 languages, and built a price estimator covering 45 US and Canadian stores.
- Independent — 2023 — present
matandessaur.me
Web experiences, AI apps and turnkey solutions
Formerly ontheweb.agency, now under my own name: the site you’re on. Cadence, a local-first AI engineering platform; SiteForge, the pipeline behind 10 sites in 10 days; and products like Tooolbox and Aléoresto.
- 2022
Teccart Institute
Web & Mobile Development
Full-stack developer program.
- 2020
Cégep du Vieux-Montréal
Photography & Image Editing
The eye came before the code.
- 2017
Cégep du Vieux-Montréal
Computer Science
Software development and network management.
Writing & tools
Lives on tooolbox.ioBuilt at the desk. Imagined everywhere else.
When away from the keyboard...
Photography, cooking, life.
I trained as a photographer before I wrote software for a living, and it still shows in how I build. When I am not shipping, I am behind a camera chasing light, at the stove testing a recipe on people I love, or on a mountain somewhere waiting for the snow to come back. That side of life, the unfiltered one, lives on Instagram.



















