HRIS Data Migration Specialist

We are seeking a skilled HRIS Data Migration Specialist to lead the end-to-end migration of HR

data from SAP R/3 HCM (PA/OM/Time/PY) to SAP SuccessFactors Employee Central and

S/4HANA Time. This role is critical to ensuring data integrity, compliance, and operational, Migration Planning & Strategy

• Define and document the data migration strategy & plan aligned with the SF EC and

S/4HANA HCM rollout.

• Establish data selection principles (what moves vs. what is archived/destroyed), aligned

with legal, regulatory, works council, information security, and GDPR requirements.

• Develop the data object inventory and field-level mapping specifications

• Define archiving and defensible data destruction approaches for out-of-scope or

redundant data, with audit trails and approvals.

• Set up governance: RACI, decision rights, issue/risk management, status reporting, and

executive-ready progress dashboards

• Collaborate with HR & IT and business stakeholders to define scope, timelines, and

dependencies.

Data Discovery & Mapping

• Inventory source systems (SAP ECC HCM and non-SAP), objects, infotypes, tables, and

custom fields; determine target structures in SuccessFactors (e.g., Employee Central,

Recruiting, Onboarding) and S/4HANA (e.g., Finance-related HR data, HCM compatibility

or integrations as applicable).

• Lead the data mapping and transformation logic definition, including value mapping,

code translations, derived fields, joins, historical vs. current snapshots, and effective

dating.

• Produce mapping specifications and governed transformation rules (with version control)

for all in-scope data sets.

Data Extraction, Transformation & Loading (ETL)

• Use data conversion tools, such as Spenifex, Data Conversion Manager or other to setup

the data mapping, data comparison and load the data from the source to target

systems.

• Build repeatable, parameterized ETL/ELT pipelines for extract, cleanse, transform, and

load.

• Extract legacy data from SAP R/3 HCM modules (PA, OM, Time, Payroll).

• Cleanse, transform, and map data to SuccessFactors EC and S/4HANA HCM structures.

• Use SAP Business Integration Builder (BIB), SAP Cloud Platform Integration (CPI) and data

migration tools for replication and transformation.

• Implement data quality rules, exception handling, logging, and reconciliation checks

(e.g., counts/balances, hash totals, key field completeness).

Mock Loads & Data Quality Uplift

• Plan and run multiple mock loads (e.g., ML1-ML3) across environments; track defects,

root causes, and trend improvements.

• Drive data cleansing at source (with HR data owners) and within transformation layers;

establish golden source decisions and survivorship rules for consolidated records.

• Produce data quality scorecards and measurable KPIs (completeness, validity, uniqueness,

consistency, timeliness).

• Manage cutover dry-runs, timing simulations, and performance tuning for load windows.

Testing & Controls

• Define and execute E2E testing for migration objects: unit tests, SIT, UAT support, and

parallel run/payroll impact checks where relevant.

• Support User Acceptance Testing (UAT) and parallel runs to ensure data accuracy

• Implement reconciliation and sign-off controls with business owners: pre-/post-load

controls, sampled record validation, and audit evidence.

• Ensure privacy-by-design and security-by-design throughout (masking in non-prod,

least-privilege access, retention rules).

Cutover & Hypercare

• Build and execute the Cutover Plan for go-live, including freeze windows, sequencing,

runbook, roles, checkpoints, back-out criteria, and communications.

• Orchestrate go-live weekend activities, triage, and rapid defect resolution with functional

and technical teams.

• Deliver hypercare reconciliation, issue remediation, and handover to operations/support

with documentation and knowledge transfer

Documentation & Governance

• Maintain comprehensive documentation of mappings, transformation logic, and data

lineage.

• Ensure compliance with GDPR and internal data governance policies

Do you have experience in User acceptance testing?, Do you have a Master's degree?, * 7+ years in data migration (at least 3+ in HR data), delivering complex, multi-system

migrations at enterprise scale.

• Proven experience in SAP HCM data migration projects, especially involving SF EC and

S/4HANA.

• Proven hands-on expertise with data migration tools (eg. Infoporter, Spinifex, DCM), SAP

BIB, CPI, IDoc, and OData services.

• SAP Certification in SuccessFactors EC and/or SAP Integration Suite.

• Experience in hybrid SAP HCM landscapes and phased rollouts

• You can express yourself fluently in Dutch, French and English (minimum B2 for all 3)

• Min 3 days per week onsite

EVALUATION CRITERIA

• Knowledge of HR master data, organizational structures, and payroll-relevant data.

• Knowledge of data mapping and transformation logic and techniques

• Knowledge of SAP ECC HCM (e.g., PA/OM, Time, Payroll, Benefits) and data structures

(infotypes, clusters), plus exposure to custom Z-tables.

• Knowledge of SuccessFactors EC Datamodel, Object Types and data structures

• Problem-solving capabilities

Vaardigheden

7+ years in data migration (at least 3+ in HR data), delivering complex, multi-system migrations at enterprise scale.

Experience in hybrid SAP HCM landscapes and phased rollouts

Experience in hybrid SAP HCM landscapes and phased rollouts

Min 3 days per week onsite (Brussels)

Proven experience in SAP HCM data migration projects, especially involving SF EC and S/4HANA.

Proven hands-on expertise with data migration tools (eg. Infoporter, Spinifex, DCM), SAP BIB, CPI, IDoc, and OData services.