Alexander Denisov

Software engineer in Lisbon, obsessed with AI-augmented dev workflows. I build side projects in public (hldays, pkoverlay, xmangax) and write about what I learn shipping them.

Lisbon, Portugal Joined on Oct 23, 2026 https://alexander-denisov.web.app/

Education

MSc Computer Science, FCT NOVA

Alexander Denisov

Oct 29

Building hldays #4: Business days that know local holidays

#api #typescript #webdev #buildinpublic

7 min read

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Alexander Denisov

Oct 29

Building hldays #3: A source on every record

#opendata #api #buildinpublic #typescript

7 min read

Alexander Denisov

Oct 29

Building hldays #2: Modelling holidays from country down to municipality

#api #typescript #datamodeling #buildinpublic

6 min read

Alexander Denisov

Oct 28

Building hldays #1: I kept forgetting my municipal holiday, so I built an API for it

#api #typescript #buildinpublic #sideprojects

3 min read

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Alexander Denisov

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Building hldays #4: Business days that know local holidays

Want to connect with Alexander Denisov?

Building hldays #3: A source on every record

Building hldays #2: Modelling holidays from country down to municipality

Building hldays #1: I kept forgetting my municipal holiday, so I built an API for it