≡ Matous Dzivjak

  • Hi, I’m Matouš!

    I work as a software engineer at SumUp and do a lot of sports. I am currently training for my first Ironman and an Ultramarathon. I run and cycle a lot but I’m neglecting the swimming. I do plenty of other sports too, like backcountry skiing, climbing, and anything else that I find enjoyable.

    The rest of my free time is spent on coding, reading, cooking, and other stuff. In 2019 I also started this blog to force myself into writing more and to have a place where I could share my thoughts and knowledge. Please take this whole site with grain of salt as my english is far from perfect, and I feel like creating a coherent piece of writing is still impossible task for me (I am working on it though).


    I am pragmatic optimist, ISTJ-A (Logistician) personality type according to Myers–Briggs Type Indicator. ISTJ can be split into 4 individual traits, Introverted, Observant, Thinking, and Judging. The -A suffix at the end stands for Assertive. I highly recommend trying the 16 personalities test youtself, while not tentative I find the insights helpful in learning more about yourself.

    To greater or lesser extend I identify with following philosophies:


    Software Engineer @ SumUp, 6/2021 - now Working on authentication and authorization systems implementing standards such as OIDC or OAuth2. Currently spending most of the time building second factor authentication and request signing. Also fixing a lot of legacy code along the way.
    Golang Backend Developer @ Kiwi.com, 2/2019 - 5/2021 Developing core infrastructure and services with speed and maintainability as the primary goal. Growing my experience and knowledge thanks to awesome team and mentorship from other skilled people in the company. Slowly taking more responsibility and bigger tasks such as initiating gRPC adoption across the company, helping build internal golang packages for cross-team usage, and developing multiple internal core APIs with high availability and stability demand.
    DevOps and Technical Support for Ads Systems @ FTV Prima, 9/2018 - 1/2019 Technical support for online platform advertisement team. Helping with every possible task at hand, so mostly scripting and data pipelines.
    Full-Stack Developer @ Techambition Ltd., 9/2017 - 5/2018 Full-stack developer (Node.js and React) of an online interactive tool for high school mathematics in a small startup.


    I enjoy programming outside the work as well and have build and still maintain a few personal projects:

    I also contribute to a few open source projects:

    I am most likely destined for average life, which is completely fine. If you zoom out further and it becomes pretty hard to view this tiny spec of time we’ve given and all its trappings as anything more than ridiculous. You could become the most famous person in all of human history, build empires, construct massive monuments to your achievement, etch your damn face into the earth with a laser in space… and you’d still have just as much importance, in the scale of time and space, as every human that ever lived. Zero.1

    1. https://www.reddit.com/r/AskReddit/comments/upyafq/comment/i8ol1b3/ ↩︎


    Istria 100 by UTMB
    109.8 km, 3860 m ↑
    Kullamannen Sprint Ultra by UTMB 2022
    107 km, 1240 m ↑
    12:57:39, 30th/301, 14th/62 age group
    BMW Berlin Marathon 2022
    42.195 km
    2:54:52, 1455th/34765, 231st/3019 age group
    Ironman Frankfurt European Championship 2022
    3.8 km, 180 km, 42.20 km
    11:34:42 (1:15:13, 5:28:58, 4:39:04), 1072nd/2634, 70th/121 age group
    VW Marathon Prague 2022
    42.195 km
    2:59:50, 170th/4604, 57th/554 age group