Simon Wirtz

is working from home. 🏡

Selbstständig, Freelance Software Engineer and Consultant - Kotlin and Java Expert, Simon Wirtz

Köln, Deutschland

Über mich

I'm a Digital Nomad offering my time as a freelancer. I have more than 10 years of experience building backend services and also conducted many interviews during my career. I am an expert for JVM based services, having most experience with Java (since 2011) and Kotlin (since 2016). As an expert interviewer I have been exposed to most popular programming languages already. I work remotely and will not change my location to fulfill possible job requirements. Thanks for understanding.

Fähigkeiten und Kenntnisse

Java
Kotlin
Spring Framework
Software Engineering
JVM
Product Development
Leadership
Kubernetes
Cloud
AWS
Microservice
Spring Boot
Spring
OpenFaaS
Functional Programming
Softwareentwicklung
Oracle Certified Professional
Speaker
Blogging
jOOQ
Node.js
React
Docker
Golang
OSGi
JavaScript
Hibernate
JPA
Agile Development
Continuous Integration
Reactive Programming
Gradle
jQuery
REST
SOAP
TDD
Git SCM
Jenkins
Maven
SQL
QES
Scrum
eHealth
Angular
MongoDB
IntelliJ IDEA
Eclipse
XML
Linux
Web
MySQL
PostgreSQL
Python
Interviewing
Employee interviews
Software
Consulting
Backend
GitLab
IT-Consulting
Java Development
Scientific Programming
Information technology
Engineering
Reliability
Efficiency
Friendliness
Commitment
Communication skills
International experience

Werdegang

Berufserfahrung von Simon Wirtz

  • Bis heute 5 Jahre und 11 Monate, seit Juli 2018

    Senior Interview Engineer & Mentor

    Karat

    After having conducted many interviews myself, I'm now mostly involved in helping to grow the community of Interview Engineers by mentoring new folks to get started on the platform. I also help test and develop new question sets that are used in Karat's various interview formats. I developed the company's first Knowledge Question set for the Kotlin programming language.

  • Bis heute 5 Jahre und 11 Monate, seit Juli 2018

    Freelance Software Engineer and Consultant - Kotlin and Java Expert

    Simon Wirtz

    I have been exposed to many different areas in the software engineering space. Most of my time was spent in engineering roles but I also have been acting as a mentor and consultant. My main areas of expertise are backend software engineering, technical writing and mentoring.

  • 3 Jahre und 1 Monat, Aug. 2019 - Aug. 2022

    Software Engineer

    BRYTER GmbH

    I worked with Bryter as a Software Engineer developing different services of our cloud-based SaaS product.

  • 1 Jahr und 1 Monat, Juli 2018 - Juli 2019

    Software Engineer

    Exactag GmbH

    Exactag combines classic marketing mix modeling and digital marketing attribution to create a revolutionary new cross-media approach: marketing mix attribution. The result is a comprehensive platform for increasing efficiency across all digital and analog marketing activities. I worked with Exactag as a Software Engineer using Java, Kotlin, Groovy, Spring Boot, jOOQ, Hibernate, JPA, React, TypeScript, MySQL and other technologies to work on a multi-tenant data-driven SaaS application.

  • 3 Jahre und 11 Monate, Aug. 2014 - Juni 2018

    Software Developer

    n-design GmbH

    Softwareentwicklung, Teamleitung, Java, OSGi, Spring, Fullstack, Testautomatisierung, Smartcards, eHealth, Release-Management

  • 7 Monate, Jan. 2014 - Juli 2014

    Junior Operations Internal Developer

    TravelTainment GmbH

    Java-Softwareentwicklung, OSGi, Spring, Hibernate, Web-Frontend, Datenbanken

  • 2 Jahre und 5 Monate, Sep. 2011 - Jan. 2014

    Auszubildender Mathematisch-technischer Softwareentwickler

    TravelTainment GmbH

Ausbildung von Simon Wirtz

  • 2 Jahre und 5 Monate, Sep. 2011 - Jan. 2014

    Mathematisch-technischer Softwareentwickler

    IHK Aachen

  • 2 Jahre und 10 Monate, Sep. 2011 - Juni 2014

    Scientific Programming

    Fachhochschule Aachen

    Software-Engineering, -Design, -Analyse, -Entwicklung, Mathematik

Sprachen

  • Deutsch

    Muttersprache

  • Englisch

    Fließend

  • Französisch

    Grundlagen

  • Spanisch

    Grundlagen

Interessen

Reisen
Sport
Software Development
ETFs
Blockchain

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