Portfolio
Projets choisis où le jugement d’ingénierie a remboursé la facture
Chaque étude de cas est racontée en problème, approche et résultat. Nous ne vendons pas des listes de technologies : nous vendons les décisions qui ont transformé les contraintes en résultats mesurables.
Toutes les études de cas
Triées par impact et par date. Certains clients sont nommés, d’autres restent anonymes lorsqu’un NDA l’exige: le résultat est toujours réel.
- Client anonymisé
E-commerce rebuild that recovered EUR 100k/month of lost revenue
Stabilized a checkout pipeline losing ~1,000 orders per month, recovering ~EUR 100k/month in revenue and standardizing engineering quality across three parallel client projects.
- Next.js
- Strapi
- Node.js
- PostgreSQL
- +1
- Client public
RTI Calabria: defacing recovery and server cleanup of a regional news portal
Full server cleanup after a defacing attack: 200+ backdoors identified and removed, malicious 301 redirect neutralized, organic traffic recovered with no permanent SEO penalty.
- WordPress
- PHP
- MySQL
- Docker
- +3
- Compétence transversale
From ad-hoc setup to a reusable platform running 10+ client projects
Standardized infrastructure on a reusable stack: tenant isolation, supply-chain integrity, continuous verification across code, dependencies, runtime, and availability. New client deploys in hours, predictable operating costs, freedom from managed-provider lock-in, designed to scale horizontally.
- Docker Swarm
- Traefik v3
- Cloudflare
- CrowdSec
- +1
- Client public
PD Crotone: institutional website for a provincial political federation, with strict GDPR compliance
An institutional online presence with staff-managed publishing, first-party-only data flows, and a dedicated financial-transparency section: compliance posture documented for the data controller, no intrusive consent prompts for the visitor, and no developer in the loop for day-to-day edits.
- Next.js
- Strapi
- PostgreSQL
- Docker Swarm
- +1
- Client public
FinderLead: lead extraction engine that mapped the entire Italian Amazon seller market
A lead extraction engine that mapped the full base of Italian Amazon sellers from public sources, with sustained throughput, async queue architecture, subscription billing wired through Stripe, and a pipeline ready to extend to new countries.
- Next.js
- BullMQ
- PostgreSQL
- Stripe
- +1
- Client public
IngePro: corporate website for an engineering firm, deployed on proprietary infrastructure
A static-first corporate website with green accessibility and best-practices audits, hosted on the proprietary platform baseline: predictable cost, editorial autonomy, no template-marketplace dependency. Reported as a recent launch with the data we have, not downstream KPIs we don't.
- Next.js
- Strapi
- PostgreSQL
- Docker Swarm
- +1
- Client public
Tutta N'ata Storia: QR-based digital menu accessible in one tap from the table
A QR-driven digital menu with staff-managed content updates, fast mobile-first delivery, and indexed local web presence: no reprints, no developer in the loop, no external platform subscriptions.
- Next.js
- Strapi
- PostgreSQL
- Docker Swarm
- +1
- Client public
Murista: a B2B marketplace for the construction supply chain (currently building)
A three-sided B2B marketplace for the Italian construction supply chain, currently in pre-launch: multilingual coming-soon storefront live for waitlist signups, architecture in place for contractors, suppliers, and carriers, public launch targeted Q3 2026. Reporting on what is built today, not on what isn't yet.
- Next.js
- Strapi
- PostgreSQL
- Docker Swarm
- +1
- Produit propre
GenQR: a self-built SaaS QR code generator with public API
A SaaS QR code generator with public REST APIs, consumer-ready documentation, self-service signup, and Stripe-based subscriptions. Built end-to-end in production, reported honestly as an early-stage product.
- Next.js
- PostgreSQL
- Stripe
- Docker Swarm
- Produit propre
KrystalCode: this very site
The site you are reading is itself a KrystalCode product: bilingual MDX-based portfolio, dynamic OG images, hosted on the proprietary platform baseline. The same stack we recommend to clients, applied to ourselves.
- Next.js
- MDX
- Docker Swarm
- Traefik
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