Hi, I'm Rafał.
I'm a Staff Engineer at Livepeer, specializing in Golang, Blockchain, Kubernetes, and Cloud.
I take projects from 0 to 1 - shaping ideas into solid, scalable, and well-maintainable systems.
Over the years, I've honed my skills at organizations like Google, CERN, and Hazelcast.
I enjoy sharing what I learn - I’ve spoken at over 70 tech conferences (including KubeCon, twice),
written numerous blog posts, and authored a few books.
On a more personal note, I love running and mountaineering.
@RafalLeszko
leszko
rafal-leszko
rafał-leszko
Running
MIUT
(118km, +/- 6700m)
26 Apr 2025
Madeira
Szczebel Cup
(23km, +/- 2000m)
14 Sep 2024
Mszana Dolna
UTMB
(176km, +/- 9900m)
30 Aug 2024
Chamonix, France
Ultra Trail Małopolska
(107km, +/- 5720m)
25 May 2024
Mszana Dolna, Poland
Doi Inthanon Thailand
(175km, +/- 10030m)
08 Dec 2023
Chiang Mai, Thailand
Łemkowyna Ultra-Trail
(150+km, +/- 5784m)
21 Oct 2023
Krynica, Beskid Niski
Maraton Warszawski
(42.195km)
24 Sep 2023
Warszawa, Poland
Chudy Wawrzyniec
(80+km, +/- 3825m)
12 Aug 2023
Rajcza, Beskid Żywiecki
Toporna Setka
(104km, +/- 4447m)
13 May 2023
Andrychów, Poland
Cracovia Maraton
(42.195km)
23 Apr 2023
Krakow, Poland
Julian Alps Ultra Trail
(105.4km, +/- 4080m)
16 Sep 2022
Kranjska Gora, Slovenia
Val d'Aran Pyrenees
(161km, +/- 10200m)
08 Jul 2022
Vielha, Spain
Salamandra Ultra Trail
(110km, +/- 6180m)
01 Apr 2022
Dzięgielów, Beskid Żywiecki
Łemkowyna Ultra-Trail
(150+km, +/- 5784m)
15 May 2021
Krynica, Beskid Niski
Chudy Wawrzyniec
(100+km, +/- 4865m)
08 Aug 2020
Rajcza, Beskid Żywiecki
Kirikiriroa Marathon
(42km)
07 Mar 2020
Hamilton, New Zealand
Chudy Wawrzyniec
(80+km, +/- 3400m)
10 Aug 2019
Rajcza, Beskid Żywiecki
Ultra Sowa
(53km, +/- 2050m)
21 Jul 2019
Bielawa, Góry Sowie
Maraton Leśnik
(45km, +/- 3405m)
01 Jun 2019
Szczyrk, Beskid Żywiecki
XRUN Pani Mogiła
(32km, +/- 1750m)
07 Apr 2019
Jurków, Beskid Wyspowy
Turbacz Winter Trail
(17km, +/- 700m)
10 Feb 2019
Rajcza, Beskid Żywiecki
Mountaineering
Chimborazo
6,263 m
08 Oct 2021
Ecuador
Cotopaxi
5,897 m
05 Oct 2021
Ecuador
Damavand
5,610 m
16 May 2019
Iran
Fansipan
3,143 m
18 Jan 2019
Vietnam
Kazbek
5,054 m
13 Sep 2018
Georgia
Nadelhorn
4,327 m
05 Aug 2017
Switzerland
Bishorn
4,153 m
02 Aug 2017
Switzerland
Mont Blanc
4,810 m
19 Aug 2016
Italy
Dufourspitze
4,634 m
13 Aug 2016
Italy, Monte Rosa
Zumsteinspitze
4,563 m
13 Aug 2016
Italy, Monte Rosa
Parrotspitze
4,432 m
12 Aug 2016
Italy, Monte Rosa
Ludwigshöhe
4,341 m
12 Aug 2016
Italy, Monte Rosa
Schwarzhorn
4,321 m
12 Aug 2016
Italy, Monte Rosa
Piramide Vincent
4,215 m
11 Aug 2016
Italy, Monte Rosa
