Jan Marc Effler - Project management in Project HORIZON

Q: Where is Jan Marc based?

Jan Marc is based in Potsdam, Germany .

Q: What languages does Jan Marc speak?

Jan Marc speaks the following languages: German (Native), English (Advanced), French (Elementary) .

Q: How many years of experience does Jan Marc have?

Jan Marc has at least 21 years of experience. During this time, Jan Marc has worked in at least 7 different roles and for 8 different companies . The average length of individual experience is 2 years and 3 months . Note that Jan Marc may not have shared all experience and actually has more experience.

Q: What is Jan Marc's latest experience?

Jan Marc's most recent position is Project management in Project HORIZON at Mercedes-Benz AG .

Q: What companies has Jan Marc worked for in recent years?

In recent years, Jan Marc has worked for Mercedes-Benz AG and Time off (home construction) .

Q: Which industries is Jan Marc most experienced in?

Jan Marc is most experienced in industries like Automotive , Information Technology (IT) , and Education . Jan Marc also has some experience in Construction , Pharmaceutical , and Tourism and Hospitality .

Q: Which business areas is Jan Marc most experienced in?

Jan Marc is most experienced in business areas like Project Management , Product Development , and Quality Assurance (QA) . Jan Marc also has some experience in Information Technology (IT) , Procurement and Purchasing , and Marketing .

Q: Which industries has Jan Marc worked in recently?

Jan Marc has recently worked in industries like Automotive and Construction .

Q: Which business areas has Jan Marc worked in recently?

Jan Marc has recently worked in business areas like Project Management , Procurement and Purchasing , and Quality Assurance (QA) .

Recommended expert

Potsdam, Germany

Experience

Dec 2024 - Nov 2025

1 year

Project management in Project HORIZON

Mercedes-Benz AG

Consulting on project control
Designing and implementing project control with Atlassian Confluence and Jira
Designing and implementing the cutover plan and managing the cutover process with Atlassian Confluence and Jira
Leading the work package for transitioning systems and data to the buyers
Ensuring operational readiness and handover to the buyers
Reporting to overall project management using Smartsheet

Apr 2023 - Nov 2024

1 year 8 months

Time off (home construction)

Jan 2018 - Mar 2023

5 years 3 months

Project management, requirements management, and test management in Project MyTIME

Mercedes-Benz AG

Consulting on project strategy and control
Advising on tendering and supplier selection (service description, requirements specification, requirement catalog)
Advising on contract design and service level agreement (SLA)
Coordinating risk assessment of the cloud service (Data@Cloud process)
Leading the work package for test management
Developing the test strategy and test concept (approved by KPMG)
Implementing test management with Atlassian Jira/SmartBear Zephyr
Designing and implementing requirements management with Atlassian Confluence and Jira
Developing the migration strategy and migration concept (approved by KPMG)
Modeling the service process in BPMN with Microsoft Visio

Mar 2016 - Oct 2017

1 year 8 months

Project management, test management, and requirements management in Project PORTIN

Bayer AG

Project management consulting and support
Leading the work package for test management
Designing the test management
Implementing test management in Atlassian Jira/SmartBear Zephyr
Developing test cases and test plans in Atlassian Jira/SmartBear Zephyr
Documenting test executions and results in Atlassian Jira/SmartBear Zephyr
Advising on requirements management design
Operational requirements management
Organizing, preparing, moderating, taking minutes, and following up on English and German calls, meetings, and workshops
Designing, organizing, and conducting English and German software training sessions
Process modeling in BPMN with Microsoft Visio
Application development and user administration in Microsoft SharePoint

Apr 2015 - Dec 2015

9 months

Project support and test management for the Microsoft SharePoint/Outlook-based email and document management system

YourTime Solutions GmbH

Building a test management system with Microsoft Test Manager and Microsoft Team Web Access
Creating test cases with Microsoft Test Manager
Optimizing processes between test management and product development with Microsoft Team Web Access
Conducting software tests
Creating product documentation (German/English)
Redesigning the website with WordPress
Designing the newsletter with MailChimp

Jan 2013 - Mar 2015

2 years 3 months

Personal training, coaching and support for Apple iPhone, iPad and Mac

Personal iTrainer

Offering and conducting software training and support
Developing a modular training concept for software training
Conducting market analysis of products and competitors
Designing and implementing the website with WordPress

Nov 2008 - Aug 2012

3 years 10 months

Design, development and distribution of The Note iPhone app for multimedia notes and task management

The Note

Market analysis
Designing and developing the marketing mix (product, price, distribution and communication)
Designing and developing the German and English versions of the app in Objective-C with Apple Xcode
Designing and developing the German and English websites
Creating the German and English product documentation
Distributing the app through the App Store and carrying out marketing activities
Continuous improvement

Jul 2007 - Jul 2008

1 year 1 month

Project-free time (Africa trip)

Jan 2004 - Jun 2007

3 years 6 months

Project management support in multi-project management for new CAx processes, methods and tools in car and engine development

DaimlerChrysler AG

Supporting project management
Organizing and preparing content for regular communications, and follow-ups up to center management level (E2)
Setting agendas, inviting speakers, creating presentations, taking minutes, and documenting and tracking decisions and actions
Continuously improving communication processes between project management and stakeholders
Designing and implementing information offerings for stakeholders (intranet, newsletter)
Planning the CATIA V4/V5 system migration
Organizing a full-day CATIA V5 information event for about 200 suppliers

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 Automotive (9.5 years), Information Technology (6.5 years), Education (2 years), Construction (1.5 years), Pharmaceutical (1.5 years), and Tourism (1 year).

Automotive

Information Technology

Education

Construction

Pharmaceutical

Tourism

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 Project Management (11 years), Product Development (9.5 years), Quality Assurance (7.5 years), Information Technology (6 years), Procurement (5 years), and Marketing (4.5 years).

Project Management

Product Development

Quality Assurance

Information Technology

Procurement

Marketing

Languages

German

Native

English

Advanced

French

Elementary

Education

Diploma in Business Administration, focus on Business Informatics · Business Informatics

Certifications & licenses

PRINCE2® Foundation Certificate In Project Management

Profile

Created

February 2026

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Frequently asked questions

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

Where is Jan Marc based?

Jan Marc is based in Potsdam, Germany.

What languages does Jan Marc speak?

Jan Marc speaks the following languages: German (Native), English (Advanced), French (Elementary).

How many years of experience does Jan Marc have?

Jan Marc has at least 21 years of experience. During this time, Jan Marc has worked in at least 7 different roles and for 8 different companies. The average length of individual experience is 2 years and 3 months. Note that Jan Marc may not have shared all experience and actually has more experience.

What roles would Jan Marc be best suited for?

Based on recent experience, Jan Marc would be well-suited for roles such as: Project management in Project HORIZON, Project management, requirements management, and test management in Project MyTIME, Project management, test management, and requirements management in Project PORTIN.

What is Jan Marc's latest experience?

Jan Marc's most recent position is Project management in Project HORIZON at Mercedes-Benz AG.

What companies has Jan Marc worked for in recent years?

In recent years, Jan Marc has worked for Mercedes-Benz AG and Time off (home construction).

Which industries is Jan Marc most experienced in?

Jan Marc is most experienced in industries like Automotive, Information Technology (IT), and Education. Jan Marc also has some experience in Construction, Pharmaceutical, and Tourism and Hospitality.

Which business areas is Jan Marc most experienced in?

Jan Marc is most experienced in business areas like Project Management, Product Development, and Quality Assurance (QA). Jan Marc also has some experience in Information Technology (IT), Procurement and Purchasing, and Marketing.

Which industries has Jan Marc worked in recently?

Jan Marc has recently worked in industries like Automotive and Construction.

Which business areas has Jan Marc worked in recently?

Jan Marc has recently worked in business areas like Project Management, Procurement and Purchasing, and Quality Assurance (QA).

What is Jan Marc's education?

Jan Marc holds a Master in Business Informatics.

Does Jan Marc have any certificates?

Jan Marc has 1 certificate: PRINCE2® Foundation Certificate In Project Management.

What is the availability of Jan Marc?

Jan Marc will be available from April 2026.

What is the rate of Jan Marc?

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