Architecture
Owns the technical decisions (ADRs): stack, performance, security.
CTO & Co-founder
Rémy Sanchez
Co-founder and CTO of Slash Digital Lab, and CTO of WITH Madrid. He owns architecture and the technical standard across Slash products.
LinkedIn linkedin.com/in/remysanchezBase Madrid · BogotáFocus Architecture · engineering · AI
What we deliver
Responsibilities
Slash's technical standard: written decisions, systems that hold, teams that learn.
Engineering
Runs the product build sprints across web, mobile and backend.
Applied AI
Leads the Slash AI Lab evaluations that precede every deployment.
WITH Madrid
As CTO of the sister group, aligns engineering between Colombia and Spain.
Proof in production
Products under his standard
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Peoplesnap
From smartphone to DOOH mosaic, without a single booth
Peoplesnap is Slash Experience's photobooth product: a white-label web app that turns each guest's phone into the activation. QR, selfie, AI editing (100+ parameters), social share, print and mosaics on event screens. Already live for Mouton Cadet, La French Tech Bordeaux, CEA Marcoule, Denver Pub Crawl, With Agency, We Love Beer and CES Las Vegas 2024.
Learn more →
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Planet Fitness Mexico
Out with ServiceDesk. Owned software. Fewer licenses.
SaaS-exit program with Planet Fitness Mexico: we replaced ServiceDesk with owned multi-area ticketing, shipped PF Rooms (door tablets + Exchange) across CDMX, and we're building the next product to turn off another vertical license, with no paid seats.
Learn more →
Publications
Analysis signed by Rémy
Agents and engineering
Chatbot vs AI agent: which one your business needs
A chatbot answers, an agent acts. Definitions from Anthropic and OpenAI, a decision table, agent washing, costs, risks and when a plain workflow or form is the better buy.
CybersecurityPrompt injection and agent security: risk number one
Why prompt injection is still unsolved, what the 2025–2026 incidents show and which controls actually work for agents and chatbots.
Local AI and open weightsLocal AI in 2026: which hardware to buy and what runs on it
RTX 5090, RTX PRO 6000, DGX Spark, Ryzen AI Max+ and Mac Studio M5: memory math, what fits where, buy-vs-rent costs and picks by team size.
Agents and engineeringAI agents in production: what works in 2026
Workflow or agent, the eight building blocks, adoption and failure data, computer use, design rules, costs, security and a launch checklist.
Local AI and open weightsUncensored models: what they are and what they risk
What removing a model's safeguards really means, why the ecosystem exists, what it breaks, what the law bans in 2026 and what to use instead.
Local AI and open weightsOpen-weight models in 2026: which to use, under which license
Kimi K3, Qwen3.8, DeepSeek V4.1, GLM-5.3, Gemma 4, gpt-oss, Mistral: sizes, licenses, gap to the frontier and how to host them without legal surprises.
Frequently asked questions
The questions we hear often
Who is Rémy Sanchez?
Co-founder and CTO of Slash Digital Lab; also CTO of WITH Madrid, the sister group in Spain.
What does he own technically?
Product architecture across web, mobile and backend, plus the AI evaluations before deployment.
Does he publish?
Yes: he signs Slash AI Lab's technical analyses on local AI, agents, RAG, evals and security; they are listed on this page.
How do I reach him?
Via contact@slash-digital.io or WhatsApp to Esteban Zuleta.
Does he do consulting?
Technical architecture reviews are part of Slash engagements.
Related capabilities
Where to next
Team
Team
The founders and who you work with: faces, names and responsibilities.
Learn more→ AI LabSlash AI Lab
Our lab where we evaluate models and publish the method.
Learn more→ SoftwareCustom software
We replace SaaS licenses with owned products your team controls.
Learn more→ WebWeb applications
Production web platforms: fast, secure and built to scale.
Learn more→
Talk to Slash
Let's put it in production
Tell us your challenge. We reply within 24 business hours with an honest first read: if we can help, we'll say how; if not, we'll say who can.
I reply personally. No endless forms, no canned replies.