Hi 👋
I'm Valentin, a Staff-level Product Engineer with 12+ years of experience trying to build the right things right.
My strongest work sits at the intersection of product craft, TypeScript/React, AI systems, workflow automation, and pragmatic architecture. I like turning ambiguous product ideas into fast, polished, reliable software: data model, backend workflows, UI details, rollout, analytics, and long-term maintenance.
I care about the full product loop: understanding the user problem, shaping the solution, building with taste, handling production realities, measuring what matters, and cleaning up the old path once the new one works.
I also maintain open-source projects used by thousands of developers, including React/Svelte components and developer tooling. You can find my projects on GitHub and more background on LinkedIn.
Work experience
Developed applications for Android mobile devices using Java and CSS3/jQuery. Also implemented new features and maintained existing websites using PHP and Javascript.
Developed mobile applications (natives and web) using Android and CSS3/jQuery.
Back-end implementation using .NET/C++.
Created an Android app for tablets allowing disabled people to assess their workday. Developed an administration application using Symfony2 with a dual purpose: to present the results of each user in a structured layout and to customize the Android app for each user.
Within the Reservations service of Amadeus, I developed a product named Community Trip Organizer. It is a web application providing a platform for groups in order to organize trips in a collaborative way.
In charge of the front-end part of a SAAS application, powered by AngularJS and Python. Milanamos provides traffic and revenue forecasting for the air transport industry (airlines and airports).
Polished a 20 y.o. ecommerce website using cool stuffs: React, SSR, Typescript, Webpack, Node.js, MaterialUI...
Ensuring that everything runs smoothly using Prometheus, Grafana and Google Analytics.
Powered by our micro-services APIs.
Helped build Elba's B2B security SaaS from early foundations to production.
Owned end-to-end product work across AI-assisted editors, security automation workflows, analytics, observability, and multi-channel communication.
Core stack: TypeScript, React, Next.js, Hasura, GraphQL, PostgreSQL, Inngest, analytics, and observability tooling.
Projects
Then, I thought it was a nice project and I decided to continue working on it on my personal time and made it open-source with the agreement of my employer.
Today, it has been downloaded near 100 million times on NPM.
