Letizia Sorrentino

Frontend Engineer

Building products with React, React Native, Next.js and TypeScript, with applied AI integration.

About

I'm a frontend engineer working with React, React Native, TypeScript and Next.js. I've shipped production features at Mellow Kids, a baby tracking app in beta with real users, and at Studio Mesh on the Prodigies platform, where I picked up Next.js and GraphQL on the job. My focus is reusable component architecture, design systems, and interfaces that behave reliably wherever they run.

Alongside my engineering work, I've completed two GenAI bootcamps (Cajigo, ExamPro) and I'm exploring LLM APIs and prompt pipelines, learning how to bring AI features into digital products. That combination, production frontend work and applied AI, is the direction I'm building in.

Before engineering I ran my own e-commerce business. That's where I first learned to think about software in terms of the people using it. That perspective still shapes how I approach features today: clear user flows, solid UX, and interfaces that hold up across devices.

Experience

AUG 2024 — PRESENT

Frontend Engineer · Mellow Kids

Baby sleep and development app for parents of children aged 0–2. Built the newborn tracking feature, contributing to beta readiness and early user testing. Fixed bugs across onboarding, payment flows, and in-app notifications, improving cross-platform stability on iOS and Android. Built reusable UI components and shared screen patterns in TypeScript, reducing development overhead for new features.

React NativeTypeScriptRedux ToolkitExpoEAS Build

MAR 2025 — JUN 2025

Frontend Engineer · Studio Mesh

Built and shipped production features for the Prodigies platform during a 4-month contract. Implemented password recovery functionality connecting the Next.js frontend to a Directus backend with form validation and error handling. Built multiple pages following atomic design principles, writing GraphQL queries to fetch dynamic content from a headless CMS.

Next.jsTypeScriptTailwindGraphQLDirectus CMS

NOV 2023 — JUN 2024

Frontend Engineer · The Jump Digital School

Built reusable React components and interactive quizzes used across the learning platform. Authored UI documentation and CSS/Material UI guidelines to support developer onboarding and consistency. Improved responsiveness and interface consistency across devices.

ReactMaterial UICSSTechnical Writing

2018 — 2022

Founder · Bamboo & Green

Built and maintained consumer-facing websites using Shopify and WordPress, including a sustainability-focused content platform. Increased organic traffic by approximately 50% through content strategy and SEO optimisation. Managed end-to-end e-commerce operations from product sourcing to marketing.

ShopifyWordPressSEOE-commerce
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Projects

VisionAriser

Personal growth and journaling app for iOS, Android, and web. Developed core mobile user flows including onboarding, assessments, vision boarding, affirmations, and journaling. Integrated Firebase Authentication and Firestore to support secure sign-up, user state, and persistent data across platforms. Collaborated with the founder to translate product vision into screen designs in Figma. Built for VisionAriser.

React NativeTypeScriptRedux ToolkitFirebaseEAS Build