Borna standing in a grassy field at sunset, hands in pockets, hills behind him.

Hi, I’m Borna.

About

Software by trade. Maths by training.

The two keep leaking into each other.

Interpreters, sandboxes and other ways to run code you don’t trust. Accessibility. Payments, maps, odd datasets, browser engine bugs. Front to back, whatever the problem needs.

Started giving talks in primary school and never really stopped.

Borna smiling in front of a river at dusk, wearing a leather jacket with a sheepskin collar.
~/work

Where I’ve worked.

The short version.

a7f3e912026 →HEAD → main

████████stealth

Working on something new. Not saying what yet.

  • signed, not pushed
4c1d0b22023 → 2026

Infobipsenior web dev

Web at a global comms company. Co-built and open-sourced Forms Computed Language, an interpreter for safely running untrusted code. Innovation award at the Infobip Marketing Excellence Awards, 2024.

  • interpreters
  • web platform
  • open source
  • chasing browser engine bugs
9e2a6f42021 → 2023

Infinumweb engineer

Led development on complex Eightshift projects. Took the Eightshift Development Kit to WCAG 2.1 AA. Co-wrote Infinum’s Web Accessibility Handbook.

  • accessibility
  • performance
  • payments
  • crowdfunding
  • geographical data
  • chasing browser engine bugs
  • scale
1b8c3d7earlier

Supremumco-founderyes, i’m painfully aware of the infimum/supremum thing

Online tutoring, with a friend. I did product, pricing, marketing and infra.

6d4b1e82019 → 2021

S3++camp organiser

Ran the camp. Two years of it. Summer School of Science — programme, lectures, workshops, logistics and whatever web services it needed. Still write for the blog sometimes.

0f5e2a92018 → 2023

Znanstvenik u menico-founder, project director

One of Croatia’s biggest science outreach projects. Ran it. Built the site, the signup app and the video pipeline.

visitor@mbmjertan.xyz:~/work$

§ Education

Mathematics, mostly.

And an occasional philosophy competition.

On the Education of M. B. Mjertan

Department of Mathematics, Faculty of Science, University of Zagreb

a short presentation
M. B. MjertanEducation1 / 4

University

Definition. B.Sc. in Mathematics, University of Zagreb.
  • Graduate study in Mathematics & Computer Science
  • Department award for extracurricular activities
M. B. MjertanUniversity2 / 4

Before that

Lemma. Top 20 nationally, Državna matura.
  • Gimnazija Požega, exemplary grades
  • National competitions, from CS to philosophy
M. B. MjertanBefore that3 / 4

Evidence

Borna and two friends in front of a blackboard covered in maths at the Faculty's open house.
Figure 1. Dan i noć na PMF-u, 2019. Blackboard not staged.
M. B. MjertanEvidence4 / 4
Talks

Some talks.

A few, over the years.

  • WordPress Zagreb Meetup #15, 2024Honey, I Shrunk the PHP — building an interpreter in two weeks
  • WordPress Zagreb Meetup #14Web for everyone — accessibility
  • Večer matematike, 2019Clustered and Set
  • Summer School of Science, 2019Telling the future with mathematics — probability and crime prediction
  • Dan i noć na PMF-u, 2018Various proofs of the Pythagorean theorem with Filip Matić
  • Euromath MATHFactor, 2017Making randomness — pseudorandom number generators
  • Winter school of maths and CS, 2017An introduction to web application security
  • Winter school of maths and CS, 2016An introduction to digital photo editing with Lovro Marković
  • Europe Code Week, 2015An introduction to PHP
  • Winter school of maths and CS, 2015HTML and CSS
  • Pula Mathematics Festival, 2015A mathematical walk through Slavonia
  • DORS/CLUC, 2014Primary school student using FLOSS
  • Europe Code Week, 2014Making websites in HTML
  • Winter school of maths and CS, 2014What is Linux?