Welcome to my website!


I'm Sebastian, a Full Stack Developer

Areas of expertise:

Java Enterprise Edition
(Java EE)
Java Standard Edition
(Java SE)
Android
(Java)

Monolithic applications and SOAP / WDSL, micro-services with the REST API

My Tech Stack


Java EE API

Java SE API

Android

Java


Hibernate

Eclipselink

SQL


Spring

Boot MVC Security Social ...


JUnit TDD

Mockito API

Selenium WebDriver

JMeter Apache


Maven

Gradle

Ant


Kafka

Docker


JFrog Artifactory

Jenkins


WildFly

Apache Tomcat

WebSphere

GlassFish


git

svn


Linux

About Me


My adventure with computer science began at the age of twelve, when I received my first computer Commodore 64. It was then that I discovered my passion for game development in the BASIC language. In 1999, I started my first job as a software developer. At the time my primary focus was development in the VB language. I learned the secrets of Assembler, C, and C++. You may have come across my publications (Feb - Jul 2002) in the CAD/CAM Forum monthly magazine about MDL (MicroStation Development Language based on C).

Since 2007 I have been working as a Java developer. When the OpenSolaris system appeared in 2008, I became a lover of UNIX and Linux operating systems. Now, of all the distributions, I use Debian the most.

I prefer a rational view of the world devoid of absurdities, superstitions and charlatanism. I don't like prejudice and lies. I appreciate the ability to act according to my own will and the lack of coercion while respecting everyday duties, laws, ethics and morality.

I live in GdaƄsk. I like sailing, motorsports, tennis and bicycle trips around the Tricity Landscape Park.

For an official bio please see my profile:


B2B

(Self-Employment)


In 2006, I started a business under the name Comantech (Computer, Human and Technology) and have been working remotely since then as an IT contractor on a B2B contract.

Cooperation models:

  • Fixed Price

    The price of the project is set along with the scope and schedule at the stage of signing the contract.

  • Time & Material

    Cooperation based on the task system. Hourly billings are made on the basis of reports on executed tasks, e.g., in the Jira system..

  • Combination of both models mentioned above

    I comprehensively carry out some parts of the system and the rest is done fragmentary, based on tasks defined by the client.

Contact


I use GnuPG.

My GPG key for email communication:

pub rsa4096 2023-10-13

7DAC FA2C E9C6 00E3 EE91 5751 FAF9 8B96 1120 C104

uid [ ultimate ] Sebastian Szczepaniak [sebastian.szczepaniak@comantech.pl]

sub rsa4096 2023-10-13