Thomas Wittek - Test Automation Specialist

Q: Where is Thomas based?

Thomas is based in Harrislee, Germany and can operate in on-site , hybrid , and remote work models.

Q: What languages does Thomas speak?

Thomas speaks the following languages: German (Native), English (Advanced), Polish (Elementary) .

Q: How many years of experience does Thomas have?

Thomas has at least 28 years of experience. During this time, Thomas has worked in at least 12 different roles and for 10 different companies . The average length of individual experience is 2 years and 2 months . Note that Thomas may not have shared all experience and actually has more experience.

Q: What is Thomas's latest experience?

Thomas's most recent position is Test Automation Specialist at diamondcode GmbH .

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

In recent years, Thomas has worked for diamondcode GmbH , Swiss Judo and Ju-Jitsu Association , and Judo Club Baden-Wettingen .

Q: Which industries is Thomas most experienced in?

Thomas is most experienced in industries like Sport and Recreation , Information Technology (IT) , and Energy . Thomas also has some experience in Manufacturing , Aerospace and Defense , and Advertising .

Q: Which business areas is Thomas most experienced in?

Thomas is most experienced in business areas like Information Technology (IT) , Operations , and Customer Service . Thomas also has some experience in Marketing , Quality Assurance (QA) , and Finance .

Q: Which industries has Thomas worked in recently?

Thomas has recently worked in industries like Sport and Recreation and Information Technology (IT) .

Q: Which business areas has Thomas worked in recently?

Thomas has recently worked in business areas like Customer Service , Information Technology (IT) , and Quality Assurance (QA) .

Recommended expert

Harrislee, Germany

Experience

Jul 2019 - Present

6 years 9 months

Test Automation Specialist

diamondcode GmbH

Implementing automated test strategies led to an average test duration reduction of 40%
Improved defect detection rate by 20%

May 2019 - Present

6 years 11 months

Volunteer Senior IT Consultant

Swiss Judo and Ju-Jitsu Association

Implementing the association software resulted in average time savings of 40% in administration
Migration to Microsoft 365 achieved time savings of approx. 10 hours per week

Jan 2018 - Jun 2019

1 year 6 months

Solution Engineer

Valtech

Reduced website load time by 30%
Improved conversion rate by 20%
Implementing a personalized recommendation engine increased revenue by 15%

Oct 2011 - Dec 2017

6 years 3 months

Consultant

Valtech

Increased average session duration by 25%
Reduced page load time by 40%

Jan 2011 - Dec 2021

11 years

Judo Trainer / Coach (J and S)

Judo Club Baden-Wettingen

Significantly increased self-confidence and physical abilities of children and adolescents with physical disabilities
Improved motor skills by 10%

Feb 2007 - Oct 2011

4 years 9 months

Web Developer Java & PHP

Fr. Sauter AG

Automated, improved, and extended the product import process to increase efficiency and reduce errors
Accelerated the product import process by 20%”

Sep 2005 - Feb 2007

1 year 6 months

ERP Developer with COBOL

Straub-Verpackungen GmbH

Requirements engineering increased the efficiency of business processes by 25%
Implemented a backup management solution for the corporate and trainee homepage, enabling a recovery time of under 1 hour
Optimized COBOL code to improve execution speed by 30%
Managed Windows system administration to boost system stability and reduce downtime by 15%

Feb 2004 - Aug 2004

7 months

Java Development Trainee

DIG GmbH

Optimized the ad management software, reducing processing time by an average of 5%
Reduced the error rate in ad placement by an average of 5%

Feb 2003 - May 2003

4 months

Information Technology Trainee

TÜV Rheinland Europe

Contributed to the DLS Distance Learning System, increasing user satisfaction by 20%
Created extensive documentation with DocBook-XML, reducing training times by 30%
Optimized and automated test processes, lowering the error rate by 15%

Jun 2002 - Sep 2002

4 months

Information Technology Trainee

TÜV Rheinland Europe

Executed a smooth data migration of the DLS Internet Portal, reducing downtime by 10%
Developed effective test strategies and automation, cutting the error rate by 15%
Made linguistic and cultural adjustments, resulting in a 15% increase in user adoption

Sep 2001 - Mar 2002

7 months

Military Service, Armored Engineer Company 550

Bundeswehr (German Federal Armed Forces)

Efficient planning and organization sped up administrative tasks by 20 %
Optimizing vehicle maintenance reduced downtime by 5 %

Jun 2001 - Aug 2001

3 months

Military Service, Engineer Battalion 1

Bundeswehr (German Federal Armed Forces)

Successfully completed basic training with honors in fitness tests and theoretical exams
Continually improved shooting skills through regular drills, leading to a significant increase in accuracy
Actively took part in engineering projects to improve infrastructure, increasing the efficiency and functionality of operational areas

Jan 1998 - Dec 2011

14 years

Judo Referee (District Referee)

German Judo Federation

Improved scoring accuracy in judo matches by an average of 20 %
Increased fairness and transparency in judging for children, teenagers, and adults

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Sport (28 years), Information Technology (15 years), Energy (4.5 years), Manufacturing (1.5 years), Aerospace and Defense (1 year), and Advertising (0.5 years).

Sport

Information Technology

Energy

Manufacturing

Aerospace and Defense

Advertising

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (21.5 years), Operations (14 years), Customer Service (11 years), Marketing (7.5 years), Quality Assurance (7 years), and Finance (1.5 years).

Information Technology

Operations

Customer Service

Marketing

Quality Assurance

Finance

Summary

Experienced Test Automation Specialist with extensive experience executing 20+ projects. Expert in developing and implementing automated test strategies and frameworks to improve the efficiency and quality of software products. Proficient in various testing tools and technologies, including C#, Selenium, REST, Accessibility (A11Y), SAP, and Cypress.

Skills

Testing: Ui Testing, Mobile Testing, Api Testing, Selenium, Robot Framework, Cypress, Ui Vision, Nunit, Junit, Unit Tests, Integration Tests, End-to-end Test Automation, Accessibility (A11y), Apache Jmeter, Xss, Kali Linux, Port Scanning, Jira, Xray, Tosca
Soft Skills: Team Player, Problem Solving, Communication, Nonviolent Communication (Gfk), Flexibility, Analysis, Time Management
Frontend: Html, Scss / Css, Javascript / Typescript, React / Angular / Vue.js, Headless, Json
Backend: C#, Java, Php, .Net, Python, Cobol, Mssql, Mysql, Mongodb, Access, Kafka
Tools: Atlassian Stack: Jira, Confluence, Bitbucket, Microsoft Stack, Eclipse, Intellij, Splunk, Jenkins

Languages

German

Native

English

Advanced

Polish

Elementary

Education

Mar 2005 - Apr 2008

IHK Konstanz

Bachelor · Business Informatics · Konstanz, Germany

Dec 2003 - Dec 2005

Kaufmännische und Hauswirtschaftliche Schule Donaueschingen

Vocational Training · IT management clerk & IT systems management clerk · Donaueschingen, Germany

Feb 2002 - Apr 2004

Hochschule Furtwangen

Online Media · Furtwangen, Germany

Certifications & licenses

Become A Test Automation Engineer

Linkedin Learning Inc.

Istqb Foundation Certification

Mindluster

Robot Framework Test Automation: Level 1 (Selenium)

Linkedin Learning Inc.

Profile

Created

October 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Thomas based?

Thomas is based in Harrislee, Germany and can operate in on-site, hybrid, and remote work models.

What languages does Thomas speak?

Thomas speaks the following languages: German (Native), English (Advanced), Polish (Elementary).

How many years of experience does Thomas have?

Thomas has at least 28 years of experience. During this time, Thomas has worked in at least 12 different roles and for 10 different companies. The average length of individual experience is 2 years and 2 months. Note that Thomas may not have shared all experience and actually has more experience.

What roles would Thomas be best suited for?

Based on recent experience, Thomas would be well-suited for roles such as: Test Automation Specialist, Volunteer Senior IT Consultant, Solution Engineer.

What is Thomas's latest experience?

Thomas's most recent position is Test Automation Specialist at diamondcode GmbH.

What companies has Thomas worked for in recent years?

In recent years, Thomas has worked for diamondcode GmbH, Swiss Judo and Ju-Jitsu Association, and Judo Club Baden-Wettingen.

Which industries is Thomas most experienced in?

Thomas is most experienced in industries like Sport and Recreation, Information Technology (IT), and Energy. Thomas also has some experience in Manufacturing, Aerospace and Defense, and Advertising.

Which business areas is Thomas most experienced in?

Thomas is most experienced in business areas like Information Technology (IT), Operations, and Customer Service. Thomas also has some experience in Marketing, Quality Assurance (QA), and Finance.

Which industries has Thomas worked in recently?

Thomas has recently worked in industries like Sport and Recreation and Information Technology (IT).

Which business areas has Thomas worked in recently?

Thomas has recently worked in business areas like Customer Service, Information Technology (IT), and Quality Assurance (QA).

What is Thomas's education?

Thomas holds a Bachelor in Business Informatics from IHK Konstanz.

Does Thomas have any certificates?

Thomas has 3 certificates. These include: Become A Test Automation Engineer, Istqb Foundation Certification, and Robot Framework Test Automation: Level 1 (Selenium).

What is the availability of Thomas?

Thomas is immediately available full-time for suitable projects.

What is the rate of Thomas?

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