Senior HCM / SuccessFactors Workstream Lead – SAP S/4HANA

Role Overview

The Senior HCM / SuccessFactors Workstream Lead will provide functional leadership for the SAP HCM and SuccessFactors workstream within a large-scale SAP S/4HANA transformation for an Aerospace & Defense (A&D;) customer. The role will oversee the end-to-end HCM and SAP SuccessFactors solution, covering core HR, employee lifecycle, talent management and related HR processes, while ensuring seamless integration with S/4HANA, FI, EPPM, Manufacturing, MRO, MES/PEO and other SAP/non-SAP systems.

The Workstream Lead will be responsible for solution design, functional governance, team leadership, integration, data migration, testing, cutover, go-live and stabilization for the HCM/SF stream.

Key Responsibilities

HCM / SuccessFactors Solution Leadership

* Own the end-to-end HCM / SuccessFactors functional solution and delivery.

- Lead the HCM/SF functional team and coordinate activities across all relevant submodules.
- Define and govern the solution aligned with SAP best practices and A&D; business requirements.
- Lead Fit-to-Standard / Fit-to-Gap workshops and drive HR process harmonization.
- Review and approve functional designs, configurations and key solution decisions.
- Ensure effective integration between S/4HANA HCM and SuccessFactors.
- Manage workstream risks, issues, dependencies and change requests.
- Ensure consistent HR processes across entities while addressing legitimate local requirements.

HCM / SuccessFactors Submodule Oversight

Provide functional leadership across relevant areas, including:

SAP HCM / Core HR

* Organizational Management (OM)

- Personnel Administration (PA)
- Employee lifecycle management
- Position and organizational structures
- Personnel actions
- Time Management / Time Evaluation
- Attendance and absence management
- Payroll, where applicable
- Employee master data
- HR reporting and analytics

SAP SuccessFactors Talent Suite

* Employee Central

- Recruiting
- Onboarding
- Performance & Goals
- Learning
- Compensation
- Succession & Development
- Career Development
- Talent Intelligence / Workforce Analytics, where applicable
- Other SuccessFactors capabilities within scope

HR Process & Operating Model

* Ensure consistent employee lifecycle processes from hire to retire.

- Drive harmonization of HR processes across the four entities.
- Ensure organizational structures, positions, jobs and employee data are appropriately designed.
- Align HR processes with the customer's target operating model.
- Ensure appropriate balance between global/template processes and local statutory requirements.
- Support HR business process owners in solution decisions and process design.

S/4HANA & SuccessFactors Integration

Oversee integration between HCM/SF and the broader SAP ecosystem, including:
- S/4HANA Finance – organizational and employee-related financial integration.




- EPPM – project workforce and resource-related processes, where applicable.
- Manufacturing – workforce, skills, qualifications and shop-floor resource requirements.
- MRO – workforce and maintenance resource-related processes.
- MES / PEO – workforce, labor, skills and operational data where applicable.
- SAP/non-SAP applications – enterprise identity, payroll, perks, recruitment and other HR platforms.
- Integration through SAP Integration Suite / middleware / APIs, as applicable.

Ensure end-to-end integration scenarios are designed, tested and production-ready.

HR Master Data & Migration

* Define HCM/SF master data migration requirements.
- Oversee employee, organizational, position, job and related HR data migration.
- Coordinate data cleansing, mapping, transformation and validation.
- Ensure employee and organizational data consistency between S/4HANA and SuccessFactors.
- Support mock migration cycles and final cutover migration.
- Ensure data quality and business sign-off before go-live.

Testing & Quality

* Define HCM/SF testing strategy and scenarios.
- Lead participation in Unit Testing, SIT, E2E, Regression and UAT.
- Ensure end-to-end employee lifecycle scenarios are tested.
- Validate integrations between SuccessFactors, S/4HANA and third-party HR systems.
- Manage functional defects and coordinate resolution with technical/integration teams.
- Ensure critical HR processes are fully validated before go-live.

Security, Compliance & Data Privacy

* Ensure HCM/SF solution supports appropriate employee data security and access controls.
- Coordinate with security teams on role and authorization requirements.
- Ensure appropriate segregation of sensitive HR data.
- Support compliance with applicable local and organizational HR requirements.
- Ensure HR data privacy and security considerations are incorporated into solution design and integrations.

Cutover, Go-Live & Hypercare

* Own HCM/SF cutover activities and dependencies.
- Coordinate employee and organizational master data migration.
- Ensure integrations, workflows, roles and applications are production-ready.
- Support go/no-go readiness assessments.
- Lead HCM/SF activities during go-live and hypercare.
- Ensure stabilization of critical HR and talent processes following deployment.

Team & Stakeholder Management

* Lead and mentor the HCM/SF functional team.
- Coordinate SAP HCM, SuccessFactors consultants, HR SMEs and business process owners.
- Act as the primary functional interface for HR leadership and stakeholders.
- Work closely with Functional and Enterprise Solution Architects.




- Coordinate with the Business Integrator (BI), System Integrator (SI) and Transformation Management Office (TMO).
- Provide HCM/SF status, risks, issues, dependencies and decisions to program leadership.

Key Deliverables

* HCM/SF Solution Design
- HR Process & Configuration Blueprint
- Fit-to-Standard / Fit-to-Gap Outcomes
- HCM/SF Integration Requirements
- HR Master Data Migration Requirements
- HCM/SF Test Strategy & Scenarios
- Defect & Issue Resolution
- HCM/SF Cutover Plan
- Go-Live Readiness Assessment
- Hypercare & Stabilization Plan

Required Experience

* 10–15+ years of SAP HCM / SuccessFactors experience, including significant S/4HANA transformation experience.

- Proven experience as an SAP HCM Lead / SuccessFactors Lead / HCM Workstream Lead.
- Strong experience across SAP HCM and multiple SuccessFactors modules.
- Strong understanding of Employee Central and core HR processes.
- Experience leading HCM/SF teams in complex transformation programs.
- Strong integration experience between SuccessFactors and S/4HANA.
- Experience with HR data migration, testing, cutover and go-live.
- Strong stakeholder management and communication skills.

Preferred Experience

* Aerospace & Defense industry experience.

- Large-scale S/4HANA transformation experience.
- Strong SuccessFactors Talent Suite experience.
- Employee Central implementation experience.
- Experience across Recruiting, Onboarding, Performance & Goals, Learning, Compensation and Succession.
- SAP HCM Time Management / Payroll experience.
- Experience with SAP Integration Suite / APIs.
- Multi-entity / multi-country HCM implementations.
- Experience with complex workforce environments, manufacturing or plant operations.
- SAP Activate methodology.
- Relevant SAP SuccessFactors certifications.

Ideal Candidate Profile

The ideal candidate is a senior HCM/SF professional who combines strong HR process expertise with SuccessFactors product knowledge, integration capability and workstream leadership. They should be able to connect:

Organizational Structure → Employee Lifecycle → Core HCM → SuccessFactors Talent → Workforce → S/4HANA → Finance → Manufacturing/MRO → MES/PEO and ensure that the HCM/SF landscape operates as an integrated component of the broader A&D; transformation.

The candidate should demonstrate strong ownership, solution-oriented thinking, stakeholder management and the ability to drive the HCM/SF workstream from design through build, integration, data migration, testing, cutover, go-live and stabilization.

Success Measure

The Workstream Lead will be successful when the customer has a standardized, integrated, secure and business-ready HCM/SF solution supporting the complete employee lifecycle and talent processes, with accurate employee/organizational data, robust S/4HANA integrations and full readiness for go-live.

Skills

Human Capital Management

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