Hire the author

Hey, I’m Ionut-Cristian Florescu — the creator of Mantine DataTable, Mantine ContextMenu and other open-source projects.

I’m a hands-on fractional CTO, product builder and open-source author from Bucharest, Romania, EU, building for the web since 1998. I take software products from a blank repo to production, and stay to run them for a decade. I still write production code; I’ve also learned which code isn’t worth writing.

Mantine DataTable is one of my dearest open-source projects and I have dedicated countless hours to its development and maintenance. It now gets hundreds of thousands of npm downloads every month and is used by companies such as Microsoft and Namecheap.

Besides open-source work (I’m also the author of tRPC-SvelteKit and PocketBaseUML, and a contributor to Mantine and tRPC), I’ve been the technical partner and fractional CTO behind LeasingSH.ro since 2013, and I’m the founder of swapp.ro, an invoicing and accounting app for Romanian freelancers, which I rebuilt from scratch, solo, in 2026. Earlier in my career, I built enterprise software at Allianz-Țiriac and Garanta (National Bank of Greece Group). I’m at home in rule-heavy domains (insurance, leasing, tax), where “almost right” means wrong.

These days, I’m open to fractional CTO and technical partner roles for early-stage products, sweat-equity partnerships where I own the technical side, and selected hands-on work in TypeScript, React, TanStack / Next.js, Node.js and PostgreSQL.

You can learn more about who I am, what I do, what my current top skills are and how I like to put them to use by visiting my profiles on GitHub or LinkedIn, though — since you’re reading this page — I believe you already have something in mind for me and a pretty good idea of how my skills could assist you in your endeavors.

So if you’re building something, don’t hesitate to drop me a line at the email address listed in my GitHub profile (I won’t list it here to avoid spam, but it’s easy to find) or book a call at cal.com/icflorescu.

My code is public and used by developers and companies worldwide, so I skip coding tests and multi-stage hiring processes. Instead, we’ll talk about your project: its value proposition, its challenges and how to overcome them, and how I can help make it happen.

Thank you for your interest in my work and I’m looking forward to hearing from you,
Ionut-Cristian Florescu