Mark Wessels - SAP HCM SuccessFactors Consultant

Q: Where is Mark based?

Mark is based in Huizen, Netherlands .

Q: What languages does Mark speak?

Mark speaks the following languages: Dutch (Native), English (Advanced), German (Intermediate), French (Elementary) .

Q: How many years of experience does Mark have?

Mark has at least 20 years of experience. During this time, Mark has worked in at least 9 different roles and for 10 different companies . The average length of individual experience is 2 years and 10 months . Note that Mark may not have shared all experience and actually has more experience.

Q: What is Mark's latest experience?

Mark's most recent position is SAP HCM SuccessFactors Consultant at Roland Berger .

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

In recent years, Mark has worked for Roland Berger , TNO , AholdDelhaize , and Neptune Energy .

Q: Which industries is Mark most experienced in?

Mark is most experienced in industries like Education , Banking and Finance , and Government and Public Administration . Mark also has some experience in Retail , Manufacturing , and Professional Services .

Q: Which business areas is Mark most experienced in?

Mark is most experienced in business areas like Human Resources (HR) , Information Technology (IT) , and Quality Assurance (QA) . Mark also has some experience in Project Management .

Q: Which industries has Mark worked in recently?

Mark has recently worked in industries like Retail , Energy , and Professional Services .

Q: Which business areas has Mark worked in recently?

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

Recommended expert

Huizen, Netherlands

Experience

Dec 2025 - Present

3 months

Riyadh, Saudi Arabia

SAP HCM SuccessFactors Consultant

Roland Berger

Supports the client organization during UAT by translating business and HR requirements into testable scenarios for a large-scale SAP program covering PS/PPM, Procurement, HR (OM, PA, Time, Travel, Payroll), SuccessFactors (RCM+ONB, LMS, Job Profile Builder, Succession, PMGM, Compensation), SD/Finance, and SD/Tax
Acts as the key bridge between the system integrator and business stakeholders
Liaises between client, HR teams, and system integrator to ensure clear communication, expectation management, and issue resolution
Defines and coordinates the HR cutover strategy, including planning of HR activities, data readiness, system freeze periods, and alignment with overall cutover and go-live milestones

Dec 2024 - Nov 2025

1 year

SuccessFactors EC Consultant

TNO

Implements and maintains the data model in SuccessFactors Employee Central in alignment with Recruitment, Onboarding, Fieldglass, S/4HANA Payroll integration, and data migration
Participates in and leads workshops for HR processes to gather requirements
Customizes SuccessFactors EC during development, test, and SIT phases based on workshop outcomes
Liaises with stakeholders

Sep 2023 - Dec 2024

1 year 4 months

HR IT Business Analyst SuccessFactors EC + EC Payroll

AholdDelhaize

Planned, executed, and aligned Global ECP disaster recovery processes for 410,000 associates
Optimized global HR IT ECP change and release management by implementing BTI Active Control
Delivered a five-year business continuity plan for the complete HR IT domain

Apr 2022 - Jan 2024

1 year 10 months

The Hague, Netherlands

HR IT Delivery

Neptune Energy

Managed global HR IT project portfolio for the complete SuccessFactors suite, digital personnel files, integrations, SAP Payroll, Time & Attendance, and SAP Expense modules
Coordinated, planned, and reported on SuccessFactors releases and payroll HRSPs, QA testing, requirement specification, and regression testing
Served as global HR IT product owner responsible for country-specific carve-outs and M&A activities
Acted as vendor management liaison for over 10 stakeholders, including SLA review
Aligned and executed the data recovery program
Developed and implemented strategies to improve cost efficiency, increase business effectiveness, and create synergies

Feb 2020 - Mar 2022

2 years 2 months

HR IT Business Analyst SuccessFactors EC + EC Payroll

AholdDelhaize

Acted as global HR IT business analyst in the cloud migration to SuccessFactors program, including digital personnel files, integrations, and all SAP SuccessFactors modules, including Payroll
Architected the global HR IT change management process
Coordinated, planned, and reported on SuccessFactors releases and payroll testing
Served as global HR IT product owner for BAU changes and vendor releases, managing vendor liaison for over 20 stakeholders including SLA review
Implemented global HR IT governance structure

Sep 2019 - Jan 2020

5 months

The Hague, Netherlands

HR Process Consultant SuccessFactors EC

EY Netherlands

Conducted fit-gap analysis for HR processes and SuccessFactors for 4,500 employees
Defined an in-control framework (GDPR) and optimized the HR shared service centre
Led workshops for a new local absence application
Liaised with stakeholders

Sep 2018 - Jul 2019

11 months

Rijswijk, Netherlands

SuccessFactors EC Functional Consultant

TUI Netherlands

Supported the HR functional project team in the Western Region (15,000 employees) during the SuccessFactors implementation, including the Time Off module and integration with ADP Payroll
Managed the HR business streams for data migration, time off, and ADP integration
Performed HR data conversion and process optimization
Gathered requirements and tested payroll, liaising with stakeholders
Contributed to technical coordination with IT, InfoTec, and external provider (ADP)

Mar 2018 - Aug 2018

6 months

Brussels, Belgium

HRIT Scrum Team Member

AXA Belgium Bank/Insurance

Supported the HR functional project team in the Agile Scrum deployment of a major HRIT project
Managed payroll testing, in- and outbound interfaces, and data integration using HP-ALM
Coordinated technical aspects with IT, AXA Technology Services, and the external provider (TCS)
Handled HR data conversion testing and process optimization

May 2017 - Jan 2018

9 months

Brussels, Belgium

HRIT Analyst (Consultant)

Persopoint (DXC)

Extended HRIT system functionalities for 70,000 employees to interface with SAP Payroll
Developed and planned HR integration and unit test strategies
Liaised on pay and time-related data with clients and third parties during workshops
Handled data conversion testing and provided error reports of data conversion and setup

Mar 2014 - Nov 2016

2 years 9 months

Burscheid, Germany

HRIT Analyst (Consultant)

Johnson Controls

Supported daily operations of a HRIT environment for 95,000 employees across Europe, Middle East, South America, and Asia during a global Workday implementation
Tested HR files and loaded HR data to production
Extracted and reviewed HR data, providing error reports for cleansing prior to extraction for Workday
Performed business process and end-to-end testing of new functionality and programming changes, signing off on global and country-specific changes using JIRA

Jan 2005 - Dec 2014

10 years

HR IT Business Analyst (HRMS / PeopleSoft / Payroll Integrations)

Independent

Delivered end-to-end HRIT and payroll solutions across public and private sectors, including TU Delft, Dutch Central Bank, and ABN AMRO for organizations up to 30,000 employees
Specialized in PeopleSoft HRMS implementations, upgrades, and payroll integrations (Raet/Youforce, Gemal, Centric, MediSoft, SAP)
Skilled in requirements analysis, process design, configuration, testing, deployment, and user training
Experienced in Agile Scrum environments, bridging business needs with IT solutions to optimize HR operations and data integrity

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 Education (10 years), Banking and Finance (10 years), Government and Administration (10 years), Retail (3.5 years), Manufacturing (2.5 years), and Professional Services (2 years).

Education

Banking and Finance

Government and Administration

Retail

Manufacturing

Professional Services

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 Human Resources (20.5 years), Information Technology (20.5 years), Project Management (2.5 years), and Quality Assurance (2.5 years).

Human Resources

Information Technology

Project Management

Quality Assurance

Summary

Top international HR IT Delivery consultant with over 20 years of professional IT experience in Human Resource Management Systems, payroll services transitions and change management.
Resourceful entrepreneur with demonstrated ability to build technology capabilities from the ground up – facilitating sustainable growth and profitability. Skilled in assessing organizational needs within HR optimization and forming solutions that reverse negative trends and maximize efficiency.
Multitalented business strategist with proven professional experience in multimillion-dollar projects from inception to completion across multiple sites including leading large scale, visible IT programs, product development and designs; aligning business goals with technology solutions to drive process improvements, competitive advantage and bottom-line gains. Utilized business cases, system requirements and design specifications documents to plan, develop and execute test strategies.
Delivered practical leadership, dynamic and performing best management practices to initiate, plan and execute large-scale cross functional and company-wise critical programs, identify and successfully make use of opportunities to improve business productivity.
Exemplary change consultant with the ability to analyze issues, devise continuous process improvements and incorporate business process initiatives to increase efficiency. Highly flexible and adaptable performer, dexterous at multi-tasking and thriving in a fast-paced environment while coordinating numerous time-sensitive projects.

Skills

Hr It Delivery
It Project Management
Technical Support
Qa Testing
Requirement And Specification
Complex Problem Solving
It System Deployment
Global Business Integrations
System/security Testing
Process Improvement
Human Resource Management System
Data Migration
Disaster Recovery
Business Consultancy
Business & It Alignment
End-user Training
Cross Functional Team Management

Languages

Dutch

Native

English

Advanced

German

Intermediate

French

Elementary

Education

Sep 1997 - Jun 2001

Arnhem Business School

B.S. · Business Information Science · Arnhem, Netherlands

Certifications & licenses

Professional Scrum Master PSM-1

SuccessFactors Employee Central Certification

Profile

Created

February 2026

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Frequently asked questions

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

Where is Mark based?

Mark is based in Huizen, Netherlands.

What languages does Mark speak?

Mark speaks the following languages: Dutch (Native), English (Advanced), German (Intermediate), French (Elementary).

How many years of experience does Mark have?

Mark has at least 20 years of experience. During this time, Mark has worked in at least 9 different roles and for 10 different companies. The average length of individual experience is 2 years and 10 months. Note that Mark may not have shared all experience and actually has more experience.

What roles would Mark be best suited for?

Based on recent experience, Mark would be well-suited for roles such as: SAP HCM SuccessFactors Consultant, SuccessFactors EC Consultant, HR IT Business Analyst SuccessFactors EC + EC Payroll.

What is Mark's latest experience?

Mark's most recent position is SAP HCM SuccessFactors Consultant at Roland Berger.

What companies has Mark worked for in recent years?

In recent years, Mark has worked for Roland Berger, TNO, AholdDelhaize, and Neptune Energy.

Which industries is Mark most experienced in?

Mark is most experienced in industries like Education, Banking and Finance, and Government and Public Administration. Mark also has some experience in Retail, Manufacturing, and Professional Services.

Which business areas is Mark most experienced in?

Mark is most experienced in business areas like Human Resources (HR), Information Technology (IT), and Quality Assurance (QA). Mark also has some experience in Project Management.

Which industries has Mark worked in recently?

Mark has recently worked in industries like Retail, Energy, and Professional Services.

Which business areas has Mark worked in recently?

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

What is Mark's education?

Mark holds a Bachelor in Business Information Science from Arnhem Business School.

Does Mark have any certificates?

Mark has 2 certificates. These include: Professional Scrum Master PSM-1 and SuccessFactors Employee Central Certification.

What is the availability of Mark?

Mark is immediately available for suitable projects.

What is the rate of Mark?

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