Tammo Buss - Senior IT Demand Manager Central Divisions

Q: Where is Tammo based?

Tammo is based in Bad Zwischenahn, Germany .

Q: What languages does Tammo speak?

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

Q: How many years of experience does Tammo have?

Tammo has at least 12 years of experience. During this time, Tammo has worked in at least 2 different roles and for 2 different companies . The average length of individual experience is 6 years and 3 months . Note that Tammo may not have shared all experience and actually has more experience.

Q: What is Tammo's latest experience?

Tammo's most recent position is Senior IT Demand Manager Central Divisions at EWE AG .

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

In recent years, Tammo has worked for EWE AG .

Q: Which industries is Tammo most experienced in?

Tammo is most experienced in industries like Energy and Retail .

Q: Which business areas is Tammo most experienced in?

Tammo is most experienced in business areas like Information Technology (IT) , Project Management , and Human Resources (HR) . Tammo also has some experience in Strategy and Planning .

Q: Which industries has Tammo worked in recently?

Tammo has recently worked in industries like Energy .

Q: Which business areas has Tammo worked in recently?

Tammo has recently worked in business areas like Human Resources (HR) , Information Technology (IT) , and Project Management .

Recommended expert

Bad Zwischenahn, Germany

Experience

Jun 2018 - Present

7 years 9 months

Senior IT Demand Manager Central Divisions

EWE AG

Responsible for all IT initiatives in the HR and Legal board area as IT Business Partner HR, solution architect, and portfolio/project manager
Direct reporting to the CHRO as part of the 'HR Transformation' project
Architectural development planning and application strategy for all around 70 HR IT applications
Responsible for solution and integration architecture for 'Corporate' projects
Developing digital solutions for the entire group (e.g., digital signature, no-code/low-code platforms)
Involved in the Cloud Task Force, developing a cloud strategy and operationally implementing cloud pilot projects (AWS, Azure)
Developing solution architectures and integration architectures

Sep 2013 - May 2018

4 years 9 months

Westerstede, Germany

IT Coordinator, Senior Business Analyst in IT Management

Steinhoff Group

Process, change, and transformation management (leading Europe-wide projects, especially S4/Hana rollout)
Preparing and presenting strategic IT decisions for the board
Creating and managing the IT budget, IT controlling, IT sourcing
SLA management: developing, negotiating, and managing IT service contracts
System accountability for the Europe-wide deployed SAP (FI/HCM) system, d.velop Enterprise Content Management System (d.3), and data integration platform (Lobster_Data)
Central interface management: designing, implementing, testing, and continuously improving group-wide interfaces
Gathering and fulfilling IT requirements in business departments
Participation in the global 'Steinhoff Talent Management and Executive Development Program' to prepare for the role of 'Head of Central Systems IT' in 2017/2018

Technical Project Manager

Alterric

Technical project manager for the project, including outsourcing payroll and implementing 'Personio'

HR Transformation

EWE AG

Responsible for planning and executing the Workday implementation, including implementing the HR process inventory
Leading the cross-functional team of HR business partners, process managers, and technical business analysts to identify process gaps (Workday←→ current processes) and develop target processes and technical solutions
Integration/Data Lead responsible for the interface landscape of all Workday subsystems
Contact for works councils in negotiating the transitional group works agreement 'data migration and testing' as well as the final group works agreement 'Workday'
Supporting and managing change and adoption measures
Direct contact for data protection, especially regarding 'Schrems II'

HR Transformation (Pre-Project)

EWE AG

Project manager and initiator of the HR Transformation pre-project for tendering an HR management system under the sector regulation
Documenting the HR process inventory (BPMN and RACI)
Responsible for defining requirements and the evaluation matrix for the HR management system tender (Workday, Oracle, SuccessFactors, Rexx, Magellan)

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 Energy (7.5 years) and Retail (4.5 years).

Energy

Retail

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 (12.5 years), Project Management (12.5 years), Human Resources (7.5 years), and Strategy (4.5 years).

Information Technology

Project Management

Human Resources

Strategy

Summary

Nine years of IT and process experience in the core areas of medium-sized corporations with a strong focus on introducing new systems in HR and finance with interdisciplinary teams. High technical expertise combined with a deep understanding of business processes and requirements.

Skills

It/erp Systems

Sap Hcm
Sap Fi
Workday
Lobster Data
Ecap [Agile Apps]
M365 Powerapps
M365 Power Automate
D.3 Ecm
Ms Excel
Ms Teams
Ms Powerpoint (Very Good)
Workday
Leanix
Confluence Jira
Confluence Wiki
Dexicon Enterprise
Xflow Suite (Good)

Programming Languages & Technologies

Java
Abap
Groovy
Bpmn2
Rest
Json
Eepk
Uml
Edi
Xml
Sql
Ldap (Good)

Languages

German

Native

English

Advanced

Education

Apr 2011 - Aug 2013

C.v.O. University of Oldenburg

Master of Science · Business Informatics · Oldenburg, Germany · 1.3

Aug 2010 - Mar 2011

Oakland University

Management Information Systems · United States · 1.0

Oct 2007 - Aug 2010

C.v.O. University of Oldenburg

Bachelor of Science · Business Informatics · Oldenburg, Germany · 2.0

...and 2 more

Certifications & licenses

D.ecs Flow & Forms Process Management etc.

Modeling Business Processes Clearly with BPMN2.0 (OCEB2-F)

Workday HCM Fundamentals

Workday Report Writer

Profile

Created

February 2024

Last Update

May 2025

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Frequently asked questions

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

Where is Tammo based?

Tammo is based in Bad Zwischenahn, Germany.

What languages does Tammo speak?

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

How many years of experience does Tammo have?

Tammo has at least 12 years of experience. During this time, Tammo has worked in at least 2 different roles and for 2 different companies. The average length of individual experience is 6 years and 3 months. Note that Tammo may not have shared all experience and actually has more experience.

What roles would Tammo be best suited for?

Based on recent experience, Tammo would be well-suited for roles such as: Senior IT Demand Manager Central Divisions, IT Coordinator, Senior Business Analyst in IT Management, Technical Project Manager.

What is Tammo's latest experience?

Tammo's most recent position is Senior IT Demand Manager Central Divisions at EWE AG.

What companies has Tammo worked for in recent years?

In recent years, Tammo has worked for EWE AG.

Which industries is Tammo most experienced in?

Tammo is most experienced in industries like Energy and Retail.

Which business areas is Tammo most experienced in?

Tammo is most experienced in business areas like Information Technology (IT), Project Management, and Human Resources (HR). Tammo also has some experience in Strategy and Planning.

Which industries has Tammo worked in recently?

Tammo has recently worked in industries like Energy.

Which business areas has Tammo worked in recently?

Tammo has recently worked in business areas like Human Resources (HR), Information Technology (IT), and Project Management.

What is Tammo's education?

Tammo holds a Master in Business Informatics from C.v.O. University of Oldenburg and a Bachelor in Business Informatics from C.v.O. University of Oldenburg.

Does Tammo have any certificates?

Tammo has 4 certificates. Among them, these include: D.ecs Flow & Forms Process Management etc., Modeling Business Processes Clearly with BPMN2.0 (OCEB2-F), and Workday HCM Fundamentals.

What is the availability of Tammo?

The availability of Tammo needs to be confirmed.

What is the rate of Tammo?

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