Client: Waz. Procurement and fraud-control platform for the hospitality industry. Built the full platform end to end (web + mobile + Lambda microservices) following client specifications, covering procurement, delivery, invoicing, and audit workflows. Developed event-driven notification system (Hasura-triggered Lambdas + EventBridge cron jobs) with deduplication and rate limiting. Built React Native mobile app with camera capture, custom SVG signature pad, and QR code verification sessions. Implemented role-based access control with Cognito JWT claims driving Hasura row-level security, email 2FA, and S3 presigned uploads. Authored modular Terraform IaC (Cognito, Aurora, CloudFront, S3, SES, Secrets Manager) across staging and production. Leveraged Claude Code as the primary development tool to accelerate full-stack implementation across the entire platform. Tech: React, React Native, Expo, TypeScript, Ruby, AWS Lambda, Hasura, GraphQL, PostgreSQL, Terraform, Tailwind CSS, Zustand, TanStack Query, Cognito, SES, Courier, Serverless Framework, Playwright, i18next, Claude Code, Docker

Client: Civitas Learning. Student Impact Platform — analytics and workflow tools serving 400+ institutions to improve student retention and financial health. Maintained and enhanced legacy PHP/Symfony platform while building the next-generation Node.js/React application. Resolved critical bugs and performance issues; conducted thorough code reviews to maintain quality and best practices. Tech: PHP, Symfony, React, Node.js, Material UI, Jest, PHP Unit, RESTful services, PostgreSQL, TypeScript, React Hooks, Docker

Client: Nomad Health. Online marketplace connecting 475,000+ physicians, nurses, and medical facilities for healthcare jobs. Developed the new public job board pages, increasing platform visibility for healthcare job seekers. Implemented new features and refactored codebase to enhance readability, eliminate duplicates, and reduce bundle size. Ported web platform features to the mobile application; managed deployment on Google Play and App Store. Tech: Next.js, React Native, Expo, Flask, Storybook, Formik, Material UI, MongoDB, Elasticsearch, Kafka, Docker

Client: HealthMart. Platform to manage patients, pharmacy appointments, symptoms reports, services, and questionnaires. Collaborated with client team to synthesize feedback; implemented new features and mentored interns. Tech: React.js, React Native, Expo, Tailwind, Formik, Yup, React Router, HTML, Sass, Bootstrap, Express.js, GraphQL, Supabase, Cypress

Client: DLS Appointments. Mobile application to manage and control appointments between stores. Design and development in a B2B environment according to client needs. Improved app architecture with existing stack. Managed deployment and maintenance on Google Play. Tech: React Native, Expo, React Navigation, Redux, Sagas, Google Maps, Fastlane, Express.js, AWS, DynamoDB, Redis, Firebase Notifications, Xcode. Client: DLS ERP. SPA system with vertical database structure for entities, data flows, forms, roles, and charts. Refactored codebase for readability and performance. Developed custom components: document viewers, code scanners, dynamic charts. Improved application performance by ~60% by removing re-rendering issues and reducing bundle size. Implemented backend APIs using Go, FastAPI, Ruby, Rust, and Express. Tech: React.js, React Router, Redux, Sagas, Ruby on Rails, Express.js, Rust, Python, FastAPI, Go, Bootstrap, Vue.js, Redis, AWS, GraphQL

Client: Binder. Mobile app to manage news, notifications, and student reports for multiple schools. Designed, developed, and implemented features per client documents. Managed deployment on Google Play and App Store. Tech: Ionic 3, Ruby on Rails, Bootstrap, Vue.js, HTML, CSS, JavaScript, Firebase Notifications. Client: Tecini S.R.L | ConstruApp. Web and mobile app to generate budget reports. Design and development according to good practices. Research to improve architecture based on new framework standards. Tech: Ionic 3, Spring Boot, Bootstrap, Vue.js, HTML, CSS, JavaScript, TypeScript. Client: Frutika S.R.L | Frutika MAPS. Web and mobile app for store audits, product distribution, and price control. New features implementation and maintained cohesive project. Managed deployment on Google Play and App Store. Tech: Native Android, Java, Sugar ORM, Laravel, PHP, Bootstrap, JavaScript, Vue.js. Client: Panchita G Lines | SGN Parks. Naval management system with admin panel and mobile app for resource management. New features implementation and improved old features. Managed deployment on Google Play. Tech: Native Android, Java, Sugar ORM, Laravel, PHP, Bootstrap, Vue.js. Client: Kingbull CrossFit App. Gym app for athlete profiles, news, WOD, reservations. New features, upgraded framework, improved architecture. Managed deployment on Google Play and App Store. Tech: Ionic 1, Laravel, PHP, Bootstrap, HTML, CSS, JavaScript. Client: CYK Optical | ARTRONIC. Web ERP: financial accounting, HR, supply chain, order processing. Full ownership: development, maintenance, troubleshooting. Code reviews and integrated other developers. Tech: Laravel, PHP, Bootstrap, HTML, CSS, JavaScript, React.js, MySQL. Client: Probeti S.R.L | probeti. Web system for simple compression tests on concrete samples. Advised and mentored new developers. Tech: Django, Django Rest, Bootstrap, HTML, CSS, JavaScript, MySQL. Client: IPAC System. Web system to manage courses, student careers, employee payrolls. General maintenance, new features, coordination with other developers. Tech: PHP, HTML, CSS, JavaScript, jQuery, MySQL. Client: Campo Alto Association. Landing page, CMS, and football tournament management system. Coordinated with CTO to create the project and implement features. Tech: Laravel, PHP, WordPress, Bootstrap, JavaScript, jQuery, MySQL, CPanel.