Ognjen Regoje bio photo

Ognjen Regoje
But you can call me Oggy

I make things that run on the web (mostly).
More ABOUT me and my PROJECTS.

me@ognjen.io LinkedIn
Check out
The Marketplace Guide
A collection of lessons for the early stages of building a marketplace startup.


My name is Ognjen, but you can call me Oggy.

I make things that run on the web (mostly).

I'm a Staff Software Engineer at Doctolib. We're hiring in Paris, Berlin & Milan.

I am/was the technical co-founder of Supplybunny.

I wrote a guidebook about building a marketplace based on my experience working on Supplybunny.

And before even that I worked at a consultancy and freelanced building MVPs for startups (a couple of which raised funding).

I'm currently not looking for a new job but have been known to help startups (particularly early-stage ones) and SMEs on tech and product.

My stack

I prefer using Rails with Vue.

But have used (or am using) many other things such as:

I try to make tech (both the software and the industry) more human-friendly. To that end, I write about product development, ethics, privacy, etc. I also write about interesting technical issues (and solutions) or product ideas I've had.

Get in touch at me@ognjen.io or on LinkedIn if you're keen to talk shop.



Tracking the cursor in Selenium driven Chrome

Selenium changed the coordinate system to be relative to the center of the viewport instead of the top left corner. (522)

Do forgettable work

Don't try to be perfect. Try to be prolific. (62)

As silly as it sounds, system design interviews are about systems and design

It might sound obvious, but system design interviews are about the systems and the design. (335)

Lessons in DDD from building an e-commerce platform

Certain aspects of building an e-commerce platform encourage the same practices that DDD advocates for. (437)

Using robots.txt to discover hidden content

robots.txt might prevent search engines from indexing content, but it can expose it to non-robots (97)



Custom-tailored TODO app

In numbers

Items tracked In development Yearly Cost
~10k ~1 year on and off ~$13


Ooradee is a TODO app that I built to replicate the system I had on paper. It's key feature is different time horizons allowing me to schedule todos on specific dates but also for weeks and months in general. It also has a specialized interface for review helping me track progress on things I'm working on.


It's a PWA on Rails 6 with webpacker and Vue. It's installable on desktop and mobile. It can send notifications to Chrome. It runs ActionCable for background updates.


In progress. It's my testbed for new tech and I've learnt a lot about design from it.

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Examples of software being polite Live link

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