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Skills

In external projects I was employee, contractor, developer, architect & project lead.

In my own company I am an employer, client, project manager, automater, marketeer, designer, producer, manufacturer and some kind of all-rounder.

For customers who are interested in my skills as a software developer, I have collected my expertise:

Languages

Java 11

90%

Groovy

80%

SQL

70%

Ruby

50%

Web

HTML

90%

CSS

90%

JavaScript

80%

JQuery

80%

Java Frameworks

Spring (Core, Web, Boot, Data)

90%

Hibernate

80%

GWT

80%

Grails

70%

Remote API

RESTful Services

90%

JSON, XML

90%

SOAP, RPC

80%

Swagger

60%

Databases

JPA

90%

Mysql

90%

Postgresql

80%

MongoDB

60%

ElasticSearch

50%

DevOps

Maven

90%

TDD, JUnit, Mockito

90%

Jenkins

80%

Tomcat

70%

JBoss

60%

OS’s & IDE’s

IntelliJ Idea

90%

Eclipse IDE

80%

macOS

80%

Linux

70%

Windows

30%

Foreign API’s

Billbee API

90%

Amazon MWS

80%

eBay API

80%

Trello API

80%

Slack API

70%

Non Dev

Google Sketchup

80%

Adobe Illustrator

80%

Pixelmator

40%

Spoken Languages

German

100%

Russian

70%

English

50%