Workflow automation, luxury retail management, embedded electronics, trading tools, and full-stack web — from the boutique floor to the server rack, I build what businesses need to operate.
I'm Céleste Bellier, based in Lyon, France. Since 2020, I've been operating at the intersection of automation engineering, luxury retail management, and full-stack development — building the invisible infrastructure that keeps businesses running.
At Boutique G-Shock Lyon (Groupe Maier), I designed and deployed the full technical backbone — automation systems, e-commerce auditing, KPI reporting, shipping logistics. I know how to run a boutique end-to-end: operations, team coordination, customer experience, sales strategy. That operational awareness shapes everything I build.
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.
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 — shipping labels, AI-powered lead triage, order tracking, KPI dashboards. Self-hosted, production-grade.
Capable of running a boutique end-to-end — daily operations, team coordination, customer experience, inventory, sales strategy, and performance reporting. Operational fluency that informs every system I build.
Bridging high-end retail and technology. E-commerce catalog auditing, product data quality, operational tooling, and AI-powered assistants for the Casio/G-Shock ecosystem.
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 building things since 2020 — starting with web development, then expanding into automation, retail operations, electronics, AI tooling, and SEO. Each project taught me something the previous one couldn't.
What sets me apart is that I don't just write code — I understand how a boutique runs, I've handled customer relationships, inventory, and logistics from the inside. When I automate a process, it's because I've done it manually first and know exactly where it breaks.
On the SEO side, I build sites that rank — structured data, schema markup, sitemaps, OG metadata, semantic HTML, blog content strategy, and Search Console / Bing Webmaster optimization. Every project I ship is built to be found.
I build with Node.js, automate with N8N, solder with an iron, and ship with DHL. The stack changes. The mindset doesn't.
Automation, web apps, retail tech, hardware, or something I haven't thought of yet.