Christian Renneberg - Freelance Test Manager / Requirements Manager

Q: Where is Christian based?

Christian is based in Jork, Germany and prefers 100% remote projects.

Q: What languages does Christian speak?

Christian speaks the following languages: German (Native), English (Advanced) .

Q: How many years of experience does Christian have?

Christian has at least 17 years of experience. During this time, Christian has worked in at least 6 different roles and for 6 different companies . The average length of individual experience is 3 years and 10 months . Note that Christian may not have shared all experience and actually has more experience.

Q: What is Christian's latest experience?

Christian's most recent position is Freelance Test Manager / Requirements Manager at Self-employed .

Q: What companies has Christian worked for in recent years?

In recent years, Christian has worked for Self-employed .

Q: Which industries is Christian most experienced in?

Christian is most experienced in industries like Information Technology , Professional Services , and Energy . Christian also has some experience in Automotive and Healthcare .

Q: Which business areas is Christian most experienced in?

Christian is most experienced in business areas like Quality Assurance , Information Technology , and Project Management .

Q: Which industries has Christian worked in recently?

Christian has recently worked in industries like Information Technology .

Q: Which business areas has Christian worked in recently?

Christian has recently worked in business areas like Information Technology and Quality Assurance .

Recommended expert

Jork, Germany

Check rate

Experience

Jul 2017 - Present

8 years 11 months

Freelance Test Manager / Requirements Manager

Self-employed

Consulting in test management, test design, test automation, test process optimization for national and international clients

Jan 2014 - Jun 2017

3 years 6 months

Germany

Consultant Test Management / Test Automation / Test Design

SQS Software-Quality-Systems AG

Consulting in test management, test design, test automation, test process optimization for national and international clients

Jan 2013 - Dec 2013

1 year

Wolfsburg, Germany

Consultant Test Management

ConceptQ GmbH

Consulting in test management
Functional test design
Manual test execution
Test process optimization
PMO activities
Acceptance tests both internally and for automotive clients

Oct 2012 - Dec 2012

3 months

Frankfurt, Germany

Software Quality Manager

TTR IT-Solutions

Test management
Planning of build tests
Functional test design
Manual test execution of TTR IT Solutions' CSM software

Jan 2010 - Sep 2012

2 years 9 months

Eschborn, Germany

Software Quality Engineer

Techem Energy Contracting GmbH

Test management
Functional test design
Manual test execution of the energy monitoring system and the energy management system
Requirement definition
Functional further development and testing of the online portal, the databases and the data collector

Aug 2009 - Dec 2009

5 months

Dreieich, Germany

Consultant - Software Testing

Giegerich und Partner GmbH

Consulting in functional test design
Test automation
Manual test execution for Sirona Dental Systems in Bensheim

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology, Professional Services, Energy, Automotive, and Healthcare.

Information Technology

Professional Services

Energy

Automotive

Healthcare

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Quality Assurance, Information Technology, and Project Management.

Quality Assurance

Information Technology

Project Management

Skills

Software Testing

Test Management, Test Design, Manual And Automated Test Execution
Test Process Improvement (Tpi® Next)
Experience In Implementing And Using Requirements And Test Management Tools
Test Management: Imbus Testbench, Hp Quality Center, Hp Alm, Sqs Test Professional, Silkcentral Test Manager, Aqua, Microsoft Tfs, Azure Devops, Jira With Xray
Defect Management: Bugzilla, Mantis, Jira, Hp Alm, Redmine, Otrs
Load And Performance Testing: Jmeter, Hp Performance Center
Test Automation: Ranorex, Hp Uft, Selenium, Soapui, Cucumber

Methodologies

Scrum, Kanban, Xp, V- And W-Model, Tpi Next®

Software Development

C#, Php, Sql, Javascript, Java, C, Xml, Batch And Other Scripting Languages
Jbuilder, Eclipse, Ms Visual Studio

Languages

German

Native

English

Advanced

Education

Jun 2006 - Jul 2009

Imbus Rhein- Main GmbH

Training as an IT specialist in application development · IT specialist in application development · Hofheim, Germany

Sep 2003 - May 2006

University of Cologne

Chemistry · Cologne, Germany

Friedrich-Ludwig-Jahn-Gymnasium Salzwedel

General university entrance qualification · Salzwedel, Germany

Certifications & licenses

SCRUM.ORG Professional Scrum Master I

ISTQB-Certified Tester – Advanced Level Technical Test Analyst

ISTQB-Certified Tester – FULL ADVANCED LEVEL

ISTQB-Certified Tester – Foundation Level – Agile Tester

ISTQB-Certified Tester – Advanced Level – Test Analyst

ISTQB-Certified Tester – Advanced Level – Test Manager

ISTQB-Certified Tester – Foundation Level

Statistics

Experience

Total positions 6

Experience in Information Technology 14 y

Avg length 2 y 9 m

Longest experience 8 y 10 m

Global Experience

Countries worked in 1 (Germany)

Primary country Germany

Expertise

Recent roles Freelance Test Manager / Requirements Manager, Consultant Test Management / Test Automation / Test Design, Consultant Test Management

Main industries Information Technology, Professional Services, Energy

Main business areas Quality Assurance, Information Technology, Project Management

Qualifications

Certifications earned 7

Profile

Created

December 2024

Last Update

December 2025

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Frequently asked questions

Have questions? Find more information here.

Where is Christian based?

Christian is based in Jork, Germany and prefers 100% remote projects.

What languages does Christian speak?

Christian speaks the following languages: German (Native), English (Advanced).

How many years of experience does Christian have?

Christian has at least 17 years of experience. During this time, Christian has worked in at least 6 different roles and for 6 different companies. The average length of individual experience is 3 years and 10 months. Note that Christian may not have shared all experience and actually has more experience.

What roles would Christian be best suited for?

Based on recent experience, Christian would be well-suited for roles such as: Freelance Test Manager / Requirements Manager, Consultant Test Management / Test Automation / Test Design, Consultant Test Management.

What is Christian's latest experience?

Christian's most recent position is Freelance Test Manager / Requirements Manager at Self-employed.

What companies has Christian worked for in recent years?

In recent years, Christian has worked for Self-employed.

Which industries is Christian most experienced in?

Christian is most experienced in industries like Information Technology, Professional Services, and Energy. Christian also has some experience in Automotive and Healthcare.

Which business areas is Christian most experienced in?

Christian is most experienced in business areas like Quality Assurance, Information Technology, and Project Management.

Which industries has Christian worked in recently?

Christian has recently worked in industries like Information Technology.

Which business areas has Christian worked in recently?

Christian has recently worked in business areas like Information Technology and Quality Assurance.

What is Christian's education?

Christian attended Imbus Rhein- Main GmbH for IT specialist in application development.

Does Christian have any certificates?

Christian has 7 certificates. Among them, these include: SCRUM.ORG Professional Scrum Master I, ISTQB-Certified Tester – Advanced Level Technical Test Analyst, and ISTQB-Certified Tester – FULL ADVANCED LEVEL.

What is the availability of Christian?

Christian is immediately available full-time for suitable projects.

What is the rate of Christian?

Christian's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.