Bjorn
Antonissen

✦ UI / UX Designer & Fullstack Developer

I design interfaces and build the systems behind them as a fullstack developer, so the products I work on stay consistent from pixel to backend.

Most of my time goes to Lettermint, an email platform I co-founded so European transactional email actually lands in the inbox instead of spam.

The rest is playground: small products I launch under my company Bjorn To Be Alive B.V.

Map showing Zwolle, Netherlands
Zwolle, Netherlands
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Lettermint

A European platform for sending transactional emails, with reliable delivery and GDPR-compliant by design.

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Rewards.Flights

Find and book the best award flights to redeem with your Flying Blue miles, to destinations anywhere in the world.

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Timeybird

Effortless time tracking for Moneybird, right from your Mac menu bar, so you never miss a billable minute.

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MuseoTrack

Discover museums across the Netherlands, track your visits and earn achievements with your Museumkaart.

CardMapr

Discover restaurants, shops and hotels across the Netherlands that accept American Express, so you never miss out on rewards.