Claudio – React, Typescript, Node.js, experts in Lemon.io

Claudio

From Italy (UTC+2)flag

Full-stack Web Developer|Senior

Claudio – React, Typescript, Node.js

Claudio is a Senior Full-Stack Engineer with ~9 years of experience, specializing in React and TypeScript with genuinely strong full-stack depth across Node.js. He's shipped end-to-end products across healthtech, logistics, civic-tech, and creative domains — often as the sole or lead engineer, taking products from architecture to live production. He brings product-owner instincts to engineering work: raises concerns proactively, drives data-informed decisions, and negotiates technical trade-offs directly with stakeholders. He integrates AI tooling daily — for architectural planning, adversarial solution review, and code generation — treating it as a core part of the engineering workflow rather than a novelty.

9 years of commercial experience in
AI
Entertainment
Healthtech
Transportation
Enterprise software
Mobile apps
SaaS
Main technologies
React
9 years
Typescript
7.5 years
Node.js
6 years
Additional skills
AI agent development
AI-assisted coding
React Native
Hasura
Fastify.js
Express.js
Feathers.js
TypeORM
MongooseODM
Sequelize ORM
Direct hire
Possible
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Experience Highlights

Lead Full-Stack / Mobile Engineer
Jan 2026 - Ongoing6 months
Project Overview

A two-sided luggage pickup and delivery platform connecting travelers with verified drivers across Italy. The product spans a traveler-facing mobile application, a backend handling delivery and payment workflows, and an operations dashboard for monitoring drivers, deliveries, and exceptional cases.

Responsibilities:
  • Architected the mobile application, backend API, and operations dashboard within a shared TypeScript monorepo;
  • implemented the complete delivery lifecycle, from booking and driver assignment to pickup confirmation and completed delivery;
  • built real-time driver tracking using Firestore subscriptions and distance-based traveler notifications;
  • implemented a route calculation system with Mapbox, Google Maps, and Haversine fallbacks;
  • integrated Stripe PaymentIntents, webhooks, idempotency controls, and authorization-to-capture payment flows;
  • developed background jobs for ETA monitoring, route recalculation, and payment reconciliation;
  • integrated OpenAI Structured Outputs to provide controlled multilingual translations with graceful fallbacks;
  • configured Docker-based deployments, secret management, and CI/CD delivery to GCP Cloud Run;
  • wrote unit and integration tests for critical business, payment, and delivery workflows.
Project Tech stack:
Typescript
React Native
React
Material UI
GCP
Firebase
Express.js
Stripe API
MapBox
Docker
Expo
Full-Stack Engineer
Aug 2025 - Jul 202611 months
Project Overview

A mobile-first digital health product supporting users during conservative lymphoedema therapy. The MVP covers onboarding, health and therapy tracking, historical data, and secure access to sensitive health information — built to test adoption and retention with real users. Delivered in approximately 30 engineering days.

Responsibilities:
  • Created the frontend, application, and data architecture for a test-ready health-tech MVP;
  • designed the PostgreSQL data model for users, health entries, therapy-related data, goals and reminders;
  • implemented authentication, signup, login and password recovery using Supabase Auth;
  • implemented database-level access control through Supabase Row-Level Security policies;
  • built the mobile-first onboarding, tracking and history user journeys with Next.js and React;
  • configured preview environments and continuous deployment through GitHub and Vercel;
  • integrated Sentry for error monitoring and PostHog for onboarding, activation and retention analysis;
  • wrote automated tests with Vitest for authentication and core tracking workflows;
  • optimized the onboarding and first-value experience based on early user behaviour and product metrics;
  • delivered the initial test-ready product in approximately 30 engineering days.
Project Tech stack:
Storyblok
React
Tailwind CSS
Typescript
Supabase
AI agent development
GitHub Actions
Lead Full-Stack Engineer
Jan 2025 - May 20261 year 3 months
Project Overview

A civic-tech platform for monitoring an invasive species across a regional territory. It transforms citizen and volunteer field reports — including photos, videos, and GPS data — into validated geospatial records that institutional operators can review, classify, analyse, and export.

Responsibilities:
  • Designed the complete report-to-validation workflow for citizens, volunteers and institutional operators;
  • implemented a mobile-oriented reporting flow with photos, videos, GPS coordinates and field data;
  • built an anonymous reporting flow with subsequent account creation and report attribution;
  • implemented authentication, data persistence and media-management capabilities using Firebase;
  • developed an operator dashboard for reviewing, correcting, validating and rejecting reports;
  • implemented report status management, classifications, filters and structured search capabilities;
  • integrated interactive maps and heatmaps for geospatial analysis of validated reports;
  • built Excel export functionality for institutional reporting and offline analysis;
  • optimized the reporting experience to achieve a median completion time below two minutes;
  • helped reduce operator review time by approximately 40% compared with the previous email-and-spreadsheet process.
Project Tech stack:
Flutter
React
GCP
Firebase
Typescript
Leaflet
Material UI
WebXR / Full-Stack Engineer
Aug 2025 - Nov 20252 months
Project Overview

A browser-based WebXR experience built for a contemporary art exhibition, targeting Meta Quest 3. Visitors explore an immersive spatial environment, perform gestures in three-dimensional space, and receive a personalized generated visual output. The experience was hardened for repeated use by first-time visitors in a public gallery setting.

Responsibilities:
  • Contributed to the technical architecture of a browser-based WebXR experience for Meta Quest 3;
  • implemented the guided visitor journey from language selection to immersive interaction and generated result;
  • built controller-based gesture capture and three-dimensional movement tracking;
  • orchestrated 3D application states, spatial audio, video playback and animated transitions;
  • integrated backend APIs used to generate and retrieve personalized visual outputs;
  • implemented localization and multilingual visitor flows;
  • designed recoverable states for interrupted sessions and headset handovers;
  • debugged browser, headset and controller-specific WebXR issues;
  • tested the experience on-site with the reference hardware;
  • hardened the application for repeated use by first-time visitors in a public exhibition environment.
Project Tech stack:
WebGL
Three.js
React
REST API
Lead Full-Stack Engineer
Jun 2025 - Sep 20253 months
Project Overview

An anonymized two-sided marketplace for the creative industry, developed in collaboration with a partner studio. The platform was scoped to reach a credible staging-ready state before the complete marketplace feature set, built on an existing product foundation rather than a full rewrite.

Responsibilities:
  • Took ownership of the primary technical execution while StudioMesh managed client communication and project coordination;
  • analysed and extended an existing product foundation rather than replacing the platform with a full rewrite;
  • built separate user experiences for the platform’s two main audiences;
  • developed modular and responsive Next.js frontend components;
  • integrated Directus as the content-management backbone of the platform;
  • implemented API-driven content workflows that allowed non-technical stakeholders to update platform content;
  • built a curated portfolio layer to provide credible content before organic marketplace density was available;
  • implemented authentication and session-management flows;
  • separated experience, application and content concerns to support incremental product evolution;
  • configured a staging environment suitable for client demonstrations, feedback collection and product validation;
  • debugged and resolved issues inherited from earlier implementation and design decisions.
Project Tech stack:
Typescript
Next.js
Directus
e2e testing

Languages

Italian
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English
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