Workflow automation, operations management, embedded electronics, trading tools, and full-stack web — I build the systems that let businesses, institutions, and teams focus on what actually matters.
I'm Céleste Bellier, based in Lyon, France. I've been taking apart and rebuilding things since I was a kid — computers, electronics, anything with a circuit. That curiosity turned into a career at the intersection of automation engineering, operations management, and full-stack development.
For Boutique G-Shock Lyon (Groupe Maier), I designed and deployed the full technical backbone — automation systems, e-commerce auditing, performance reporting, order logistics. That hands-on experience means I understand operations from the inside: team coordination, customer flow, sales strategy, inventory. I build better systems because I've lived the processes they replace.
On the side, I design and build electronic objects, develop AI-powered tools, create web applications for clients, and run automated trading analysis pipelines. The through-line is always the same: make it work, make it reliable, make it invisible.
I don't automate for the sake of automating. Every workflow starts with a real bottleneck — something I've watched eat hours of someone's week. An admin task that took 45 minutes now takes 2. Weekly reporting that required 3 hours of copy-paste now runs itself. Whether you manage a restaurant, a clinic, an agency, or a warehouse — the best system is the one nobody has to think about.
Every domain feeds the others. Retail informs automation priorities. Hardware thinking shapes software architecture. Trading demands real-time reliability.
End-to-end business process automation using N8N — orders, invoicing, client follow-ups, reporting, notifications, data sync. Any repetitive task your team wastes time on, I turn into a self-running workflow.
Hands-on experience managing day-to-day operations — team coordination, customer experience, inventory, sales strategy, and performance reporting. Whether it's a boutique, a restaurant, or an office, I understand how a business runs from the inside.
Deep-dive technical solutions tailored to specific industries. Proven track record in luxury retail (Casio/G-Shock ecosystem) — e-commerce auditing, catalog quality, AI assistants. The same methodology applies to any sector.
Designing and building physical electronic objects — ESP32 robots, custom PCB integrations, thermal printer setups, IoT prototypes. From firmware to physical assembly.
Full-stack applications from concept to deployment. Node.js backends, expressive frontends, private client portfolios, Nginx proxy management, AI-powered tools. Every site ships with proper SEO.
Automated crypto analysis pipelines — real-time Telegram alerts, multi-horizon forecasting, portfolio tracking, and performance dashboards for informed decision-making.
Production systems, client work, tools, and experiments across every domain.
DHL/SAV shipping, Zebra labels, delivery tracking, KPI dashboards, B2B ordering — all N8N.
PowerShell listener → N8N → DHL API → Outlook → Flask → Zebra thermal print.
Automated sales reporting, in-store vs internet, conversion rates.
Full product data quality audit — SKUs, naming, search sort, delivered as PDF.
AI chatbot loading Casio manuals by module number — instant procedure help.
Database mapping all module numbers across 929+ Casio watch families.
Multi-horizon crypto analysis, Telegram bot, portfolio dashboards.
AI analyzes who contacts your site, profiles the company, triages leads.
Speech-to-text + Claude post-processing, multilingual, HTML output.
Four-legged robot, inverse kinematics, WiFi, 3D-printed, hand-soldered.
Electronic objects from concept to product — PCBs, sensors, enclosures, firmware.
Five AI agents collaborate on branching narrative stories in N8N.
One VPS running everything — Nginx, N8N, Node.js apps, Claude Code.
Bespoke portfolio websites per client, with design, animations, and SEO.
I've been into tech since I was a kid — tearing apart hardware, writing my first scripts, learning how things work by breaking them. That turned into web development, then automation, operations, electronics, AI, SEO, trading tools. I don't just write code — I understand how businesses actually run, I've handled logistics, team coordination, and customer-facing operations from the inside. When I automate a process, it's because I've done it manually first.
I build with Node.js, automate with N8N, solder with an iron, rank sites with schema markup and Search Console, and connect any API you throw at me. The stack changes. The mindset doesn't.
Automation, web apps, operations tools, hardware, or something I haven't thought of yet.