Benjamin Tsapfack - Test Manager and Software and Hardware Tester

Q: Where is Benjamin based?

Benjamin is based in Wickede (Ruhr), Germany .

Q: What languages does Benjamin speak?

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

Q: How many years of experience does Benjamin have?

Benjamin has at least 15 years of experience. During this time, Benjamin has worked in at least 17 different roles and for 17 different companies . The average length of individual experience is 1 year and 10 months . Note that Benjamin may not have shared all experience and actually has more experience.

Q: What is Benjamin's latest experience?

Benjamin's most recent position is Test Manager and Software and Hardware Tester at Deutsche Bahn .

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

In recent years, Benjamin has worked for Deutsche Bahn , Deutsche Bank , ERGO AG , Finanz Informatik , and Fiducia GAD/Atruvia .

Q: Which industries is Benjamin most experienced in?

Benjamin is most experienced in industries like Banking and Finance , Transportation and Logistics , and Pharmaceutical . Benjamin also has some experience in Education , Healthcare , and Insurance .

Q: Which business areas is Benjamin most experienced in?

Benjamin is most experienced in business areas like Business Intelligence , Quality Assurance (QA) , and Information Technology (IT) . Benjamin also has some experience in Finance , Project Management , and Research and Development (R&D) .

Q: Which industries has Benjamin worked in recently?

Benjamin has recently worked in industries like Transportation and Logistics , Banking and Finance , and Information Technology (IT) .

Q: Which business areas has Benjamin worked in recently?

Benjamin has recently worked in business areas like Information Technology (IT) , Quality Assurance (QA) , and Project Management .

Recommended expert

Wickede (Ruhr), Germany

Experience

Jul 2023 - Present

2 years 8 months

Test Manager and Software and Hardware Tester

Deutsche Bahn

Developing test strategy: Designing and implementing a comprehensive test strategy for digital rail projects.
Defining test approaches: Establishing and documenting methodical test approaches to maximize coverage and efficiency.
Team management: Assigning roles and responsibilities within the test team to ensure effective and goal-oriented test execution.
Setting test principles to ensure test integrity and quality.
Integration and system testing based on specific specifications and standards.
Infrastructure development for automated test environments, including test systems and test patterns.
Testing Yemba event detection algorithms in a vehicle data logger using generative artificial intelligence.
Test case development for internal purposes and for partner companies (device manufacturers).
Performance and load testing to ensure system stability and scalability.
Ensuring compliance with relevant standards such as CENELEC, EN50126 and EN5012.

Nov 2022 - Jul 2023

9 months

Data Scientist, CRM, Software Testing

Deutsche Bank

Customer segmentation and classification: Selecting and classifying customers by target groups.
Developing and implementing machine learning models for customer segmentation and classification.
Supporting the migration from Postbank to Deutsche Bank systems, including integrating and adapting data structures.
Conducting process tests to ensure functionality and efficiency.
Applying DevOps practices and continuous integration/continuous deployment (CI/CD).

Apr 2022 - Sep 2022

6 months

Data Analyst and Data Scientist, SAS and SQL Development

ERGO AG

Analyzing insurance data from partners to identify trends, patterns and anomalies.
Performing statistical analyses of customer insurance data across various portfolios.
Developing, creating and maintaining programs using SAS and SQL to automate and improve analysis processes.
Presenting analysis results and discussing them with business units.
Carefully documenting the results and the developed programs.

Jan 2022 - Apr 2022

4 months

SAS and SQL Developer

Finanz Informatik

Developing and maintaining programs for data processing and analysis using SAS and SQL.
Conducting tests to ensure program functionality and accuracy.
Carefully documenting test results and developed programs.

Jun 2021 - May 2022

1 year

Software Test Manager

Fiducia GAD/Atruvia

Creating and continuously updating the test plan.
Defining and aligning test approaches with project managers and testers.
Advising and coordinating testing activities.
Organizing and executing tests for various test objects.
Advising and supporting the creation, execution and management of test cases.
Closely aligning with project managers and quality officers.
Expanding and implementing test automation.
Defining requirements for the test infrastructure.
Supporting the provisioning and management of test data.

Mar 2021 - Aug 2021

6 months

SAS Developer

die Bayerische Versicherung

Reviewing existing SAS programs and developing new functions.
Creating and managing JCL jobs to automate batch processes on the mainframe host.
Conducting analyses in different insurance lines and developing corresponding solutions.

Jan 2021 - Mar 2021

3 months

Data Scientist Specialist, SAS Statistics Developer

Gefa Bank

Analysis and development of a tool to monitor and ensure the stability of the customer base.
Execution of detailed analyses of risk parameters to measure the probability of loan defaults.
Development and implementation of processes for test statistics for various samples.

Oct 2020 - Mar 2021

6 months

Data Scientist, Text Analysis and Text Mining

Bundesdruckerei und Auswärtiges Amt

Development and application of statistical models for early crisis detection.
Implementation of text mining techniques and natural language processing (NLP) with spaCy and AI models.
Creation of statistical models to classify questions from members of parliament or factions.
Development of models to detect contacts between certain categories of people.
Implementation of methods to identify words and synonyms.
Creation and maintenance of ETL pipelines and job processes.

Apr 2020 - Sep 2020

6 months

Business Analyst

Basler Versicherung AG

Collaboration with business units to analyze and align concepts for the Guide Wire Center.
Reviewing and approving IT concepts.
Analysis of interfaces between business requirements and IT concepts.
Development of data processing concepts to support business processes.
Implementation of ETL workflows in SAS DDS DI Studio to create and load data marts.
Use of the Guide Wire system to manage policies and claims.
Support of test management in execution and analysis of test cases.
Creation and maintenance of reports.

Feb 2019 - Jun 2019

5 months

Data Engineer and Software Tester

Zürich Versicherung AG

Analysis of existing processes and identification of improvement potentials.
Creation and implementation of an IFRS 17 process for accounting of automotive catastrophes.
Optimization and acceleration of SAS systems.
Development of recommendations for accounting under IFRS 17.
Close collaboration with stakeholders from accounting and reinsurance.
Creation of documentation to support regression tests.
Execution of manual tests.

Mar 2017 - Mar 2020

3 years 1 month

Business Analyst, Data Scientist, Software Development and Software Testing

Santander Consumer Bank AG

Conduct strategic analyses and develop scorecards for various portfolios.
Analyze business concepts and their data.
Develop the logic for behavioral scores using data science techniques.
Analyze and decide on credit card limits based on scorecard analysis.
Lead and coordinate the development team.
Implement and monitor strategic analyses and the scorecard database.
Manage data science analyses and campaign management.
Conduct A/B tests and Champion/Challenger tests.
Create and execute automated regression tests as well as manual tests.
Identify and fix bugs and automate UAT tests.
Develop and test new software applications and tools, including an operational risk tool.

Dec 2016 - Feb 2017

3 months

Quality Assurance and Credit Risk Modeling

VR Leasing AG

Develop and automate processes for creating and managing balance sheet data.
Create and implement processes for IFRS 9 accounting.
Review and ensure the quality of current data processing concepts.
Set up scheduled tasks for daily automatic calculation and delivery of balance sheet data.
Ensure flexibility when reading and processing source files.
Adjust and optimize SAS code.
Create an operations manual.

Mar 2016 - Jun 2017

1 year 4 months

Developer, Statistician, Business Intelligence

Landesbank Baden-Württemberg via Finanz Informatik Solutions AG

Specify and design a data warehouse system and carry out a migration project.
Perform statistical analyses and evaluations.
Adjust and model scorecards to assess customer and business risks.
Migrate a compliance data mart.
Model and test data warehouses.
Design and implement ETL processes.
Adapt and further develop existing processes.
Translate business concepts into data processing concepts.
Develop job controls with Control M.
Develop anti-money laundering tools according to BaFin requirements.

Jun 2015 - Feb 2016

9 months

Data Analyst and Business Intelligence

ISBAN GmbH (Santander Consumer Bank AG)

Develop and implement statistical models to assess credit risks.
Adjust and further develop SAS programs.
Design, model, and develop data structures in data warehouses and marts.
Perform cluster analyses for CRM campaigns.
Analyze payment transaction processes.
Create specifications for business intelligence and data warehousing.
Perform data integration, data cleansing, data analysis, ETL processes, data mining, and data profiling.
Create reports to support business decisions.
Develop and implement job controls.
Design and implement ETL processes.

Apr 2013 - Jun 2015

2 years 3 months

Data Scientist, Statistics, Development for Credit Risk Management, Software Testing, and Data Modeling

Landesbank Baden-Württemberg via ARA-Tec GmbH

Develop and implement models for disclosure and assessment of impairments.
Develop software solutions for credit risk management and reporting.
Conduct component testing, integration testing, system testing, and manual testing of data warehouse processes.
Model and implement methods to calculate the credit value at risk.
Calculate credit risks, syndicated loan allocations, and rating models.
Build and implement BI and data warehouse systems.
Automate credit risk reporting.
Develop and implement statistical models for borrower ratings.
Carry out development tasks in the financial services and pharmaceutical sectors.
Implement ETL processes for the data warehouse.
Develop an OLAP prototype for credit risk reporting.
Specify and design database solutions and data modeling.
Manage history, versioning, and release of transaction data.

Oct 2011 - Mar 2012

6 months

Statistical Consulting in the Automatic Dishwashing Laboratory (Internship)

BASF

Conducting data management as well as exploratory and descriptive analyses.
Analyzing and interpreting statistical results and deriving recommendations.
Introducing and training staff in R programming.

Apr 2010 - Feb 2012

1 year 11 months

Practical Activities During Studies

TU Dortmund

Master thesis: developing and applying statistical models to forecast the citation frequency of medical publications.
Seminar: analyzing and interpreting the ROC curve to evaluate the performance of logical rule-based systems.
Descriptive data analysis on sleeping behavior of mammals, biochemical parameters in seniors, the impact of safety systems on head injuries, social ranks of sons and fathers, pricing models for diamonds, the link between smoking and lung cancer, tree-based classification for loan applications, and a meta-analysis of breast cancer.
Developing and applying time series models to forecast future data points.

Statistician

Ampega GmbH

Developing regression models to estimate default rates in various countries based on macroeconomic factors.
Analyzing and preparing diverse macroeconomic data and time series.
Developing an adequacy analysis for the use of Expected Default Frequencies (EDFs).
Creating interactive dashboards with Tableau.
Writing development documentation.

SAS Host, Python and SQL Developer, and Software Tester

KFW Bank

Conducting detailed analyses of existing systems and further developing applications to improve banking processes.
Developing, creating, and maintaining programs and scripts using SAS, Python, and SQL.
Regularly discussing and aligning results with business units.
Carefully documenting the results and developed programs.

Test Manager, Data Analyst, Manual and Automated Software Tester

WIBANK

Writing technical concepts for various funding programs.
Creating comprehensive test strategies to ensure efficient and effective test coverage.
Defining methodological test approaches to optimize testing processes.
Executing tests, analyzing results, and determining release readiness.
Identifying, formulating, and verifying testable acceptance criteria.
Coordinating approval-related tests and their documentation.
Tracking tests and identifying improvement potentials.
Performing manual tests in the info portal.
Developing and implementing automated test scripts.
Integrating the info portal with SAP and SAP HANA, including relevant testing.

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 Banking and Finance (10.5 years), Transportation (2.5 years), Pharmaceutical (2 years), Education (2 years), Healthcare (2 years), and Insurance (1.5 years).

Banking and Finance

Transportation

Pharmaceutical

Education

Healthcare

Insurance

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 Business Intelligence (11 years), Quality Assurance (10 years), Information Technology (9 years), Finance (4.5 years), Project Management (2.5 years), and Research and Development (2 years).

Business Intelligence

Quality Assurance

Information Technology

Finance

Project Management

Research and Development

Summary

Experienced Data Scientist and software developer with extensive expertise in data analysis, machine learning, generative AI, software development and testing.

Passionate about working with data and creating innovative solutions.

Skills

Python
Pyspark
Tensorflow
Scikit-learn
Pandas
Numpy
Ai
Ai
Llm
Selenium
R
C
C++
Java
Mdx
Javascript
Azure
Aws
Servicenow
Vue.js
Html
Oracle
Ms Access
Sql
Postgresql
Mysql
Db2
Sas Base
Sas Di Studio
Hadoop Spark
Hive Tools
C++ Builder
Eclipse
Tosca
Openai
Soap
Xray
Jira
Confluence & Zephyr
Kanban
Git
Docker
Gitlab
Github
Pytest
Devops
Power Bi
Tableau
Ci/cd Pipelines

Languages

German

Native

English

Advanced

French

Advanced

Education

Apr 2010 - Oct 2012

Technical University of Dortmund

Master of Science, Data Science, Faculty of Statistics · Data Science · Dortmund, Germany

Aug 2005 - Jul 2007

University of Yaoundé I

Master of Science in Computer Science · Computer Science · Yaoundé, Cameroon

Aug 2001 - Jul 2005

University of Dschang

Bachelor of Science in Mathematics and Computer Science · Mathematics and Computer Science · Dschang, Cameroon

...and 1 more

Certifications & licenses

Ccna: Cisco Certified Network Associate Certified

CISCO

Istqb Certified Ctfl

Sas Advanced Programmer Certified

Sas

Sas Certified Base Programmer For Sas 9

Sas

Sas Data Integration Developer Certified

Sas

Profile

Created

December 2024

Last Update

January 2026

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Frequently asked questions

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

Where is Benjamin based?

Benjamin is based in Wickede (Ruhr), Germany.

What languages does Benjamin speak?

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

How many years of experience does Benjamin have?

Benjamin has at least 15 years of experience. During this time, Benjamin has worked in at least 17 different roles and for 17 different companies. The average length of individual experience is 1 year and 10 months. Note that Benjamin may not have shared all experience and actually has more experience.

What roles would Benjamin be best suited for?

Based on recent experience, Benjamin would be well-suited for roles such as: Test Manager and Software and Hardware Tester, Data Scientist, CRM, Software Testing, Data Analyst and Data Scientist, SAS and SQL Development.

What is Benjamin's latest experience?

Benjamin's most recent position is Test Manager and Software and Hardware Tester at Deutsche Bahn.

What companies has Benjamin worked for in recent years?

In recent years, Benjamin has worked for Deutsche Bahn, Deutsche Bank, ERGO AG, Finanz Informatik, and Fiducia GAD/Atruvia.

Which industries is Benjamin most experienced in?

Benjamin is most experienced in industries like Banking and Finance, Transportation and Logistics, and Pharmaceutical. Benjamin also has some experience in Education, Healthcare, and Insurance.

Which business areas is Benjamin most experienced in?

Benjamin is most experienced in business areas like Business Intelligence, Quality Assurance (QA), and Information Technology (IT). Benjamin also has some experience in Finance, Project Management, and Research and Development (R&D).

Which industries has Benjamin worked in recently?

Benjamin has recently worked in industries like Transportation and Logistics, Banking and Finance, and Information Technology (IT).

Which business areas has Benjamin worked in recently?

Benjamin has recently worked in business areas like Information Technology (IT), Quality Assurance (QA), and Project Management.

What is Benjamin's education?

Benjamin holds a Master in Data Science from Technical University of Dortmund, a Master in Computer Science from University of Yaoundé I and a Bachelor in Mathematics and Computer Science from University of Dschang.

Does Benjamin have any certificates?

Benjamin has 5 certificates. Among them, these include: Ccna: Cisco Certified Network Associate Certified, Istqb Certified Ctfl, and Sas Advanced Programmer Certified.

What is the availability of Benjamin?

Benjamin is immediately available full-time for suitable projects.

What is the rate of Benjamin?

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