Jan Trejbal

I love to create open software; you can find my work on Github. For my work, I frequently used the Nette Framework, but I transferred to .NET in June 2019.

Professional Experience

November 2019—Present

Aviationexam — Software developer with a whit of ops

I am developing containerized microservice written in the .NET 7. They support the needs of React web interface, Android, and iOS application.

June 2019—Present

Studio 12 — Tango Argentino lecturer

When I am not next to my computer’s keyboard I am usually dancing or helping others with their dance.

March 2017—November 2019

Scalesoft — Software developer

My main responsibility has been to develop and maintain PHP application in the Azure. I have designed whole scalable runtime and CI/CD process on top of the Docker technology.

I changed course to ASP.NET in July 2018. My responsibility is to maintain authorization against external identity providers, communication with external services mainly with government services ISZR, and general backed development.

Technology I mastered for production environment:
PHP 5.6, then PHP 7.2 - Doctrine - Mariadb - NGINX - Docker - Memcached - ASP.NET Core - PostgreSQL

March 2016—March 2017

Czech Academy of Science - C# Software developer

Participation on development of portal called RIDICS. My responsibility was automatic data conversion from linguists into the portal supported format.


TREMI - technical support

Maintenance of servers, applications, working stations. Development of a small in house applications.


Dům dětí a mládeže - lecturer

Leadership of technical workshops for children. Mainly focused on computers and building electrical circuits.



Engineer of Cybernetics and Robotics

My master’s thesis is about developing an embedded position sensor with a high density of used items. The firmware is written in C, and high-level data visualization counterpart is written in Golang.

Faculty of Electrical engineering, CTU Prague


Bachelor of Cybernetics and Robotics

Faculty of Electrical engineering, CTU Prague


High school diploma in Automation and Communication technology

Střední průmyslová škola strojní a elektrotechnická a Vyšší odborná škola


Email: jan@trejbal.land
Tel: +420 608280353
Website: jan.trejbal.land
GitHub: trejjam
Facebook: trejjam
Twitter: @trejjam
Datová schránka: xrq568r
PGP key: key.asc

Business and Billing Information

Email: contact@jantrejbal.cz
SIREN: 981729262
SIRET: 98172926200015
Intra-Community TVA: FR 78981729262
IBAN: FR76 1313 5000 8008 0091 4460 178

Legacy Czech information

IČ: 07992297
Datová schránka: 2g7yy2m
Bank account: 1370959002/5500
Bank: Raiffeisenbank a.s.
IBAN: CZ3955000000001370959002

Permanent residence

Ing. Jan Trejbal
3 Impasse Théodore Sudre
31100 Toulouse

Technology used on daily basis

.NET Core, Golang, PHP, Typescript, Python, NGINX, SQL, Sass, Docker, Centos, Arch linux

Familiar with

Node.js, Design PCB, Embedded solutions

Other Info


Czech: native
English: B2+
French: beginner


I work remotely, currently from Toulouse


Argentine tango; attended the first tango flashmob in Prague, part-time teacher.
Skiing, wakeboarding, kiting and yachting.