Issam Djemili

by Andreas Weller | 27. February 2026

Issam Djemili

Senior Polarion Expert

Senior Polarion Technical Partner with extensive experience in customization, deployment, and integration within automotive R&D environments
Design and rollout of integrated engineering toolchains aligned with ASPICE, ISO 26262, cybersecurity, and V-cycle methodologies
Development and customization of Polarion templates, workflows, traceability models, and FMEA integrations
Execution of global Polarion deployments including migration strategies, cross-tool integrations (Simulink, Jira, VectorCast), and governance setup
Delivery of training sessions, stakeholder workshops, and enterprise-wide process standardization initiatives

Last 3 projects

since 09/2021	Automotive (Embedded Software & Systems)	Senior Consultant – Engineering Methods & Tools Expert / Polarion Technical Partner
05/2018 – 08/2021	Automotive (Energy Systems, Fuel Cell, Battery, Hydrogen)	Head of Department – Functional Safety & Methods & Tools
10/2012 – 04/2015	Automotive (Automatic Gearbox Systems)	Engineering Process Architect / Embedded Software Architect

Tools

Competencies

Polarion Customization, Template Engineering & Toolchain Integration
Automotive Systems Engineering (ASPICE, ISO 26262, Cybersecurity, V-cycle)
Enterprise Process Definition & Deployment of Integrated Engineering Environments
API-level custom development

Languages

French
English

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Heiko Rockenberger

by Andreas Weller | 27. February 2026

Heiko Rockenberger

Senior Program Lead

10+ years of high expertise in leadership in complex SAP S/4HANA transformation programs, accountable for Business Readiness, Change, Communication & Training (CCT) streams
Extensive experience collaborating with global system integrators, particularly Accenture, ensuring alignment between client-side governance and SI delivery structures
Strong capability in steering Business Readiness within multi-vendor ERP landscapes, including integration with Accenture-led SAP Activate delivery frameworks
Executive-level stakeholder management, steering committee advisory, and risk & escalation governance in large-scale international ERP programs
Strong expertise in implementation of Digital Adoption Platforms (DAP) and structured training governance to ensure measurable user adoption and sustainable transformation impact

Last 3 projects

since 2023	Energy & Utilities (International Group)	Organizational Change Management Consultant – SAP S/4HANA & DAP Transformation (in collaboration with Accenture as implementation partner)
10/2021 – 12/2022	Automotive / Manufacturing (Special Vehicles)	Program Coordinator & Change Lead – SAP S/4HANA Public Cloud & Salesforce Transformation (multi-vendor environment incl. Accenture)
09/2018 – 08/2021	Energy, Waste & Water (International Group)	Head of Change Management & PMO – SAP S/4HANA Single Tenant Cloud Implementation (interface to Accenture delivery teams)

Tools

Competencies

Business Readiness Leadership in SAP S/4HANA Enterprise Transformations
Client-Side Governance & System Integrator Alignment (incl. Accenture collaboration)
Executive Stakeholder & Steering Committee Management in Multi-Vendor Programs
Organizational Design & Target Operating Model Implementation

Languages

German (Native)
English (Fluent)

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Naoufal Guassim

by Andreas Weller | 25. February 2026

Naoufal Guassim

Senior Polarion Expert

End-to-end Polarion ALM architecture, configuration, and optimization in automotive and medical R&D environments
Design and implementation of requirements reuse and branching strategies aligned with ASPICE and V-cycle
Advanced customization using Polarion APIs (REST, Open API, DB API), Velocity, and JavaScript
Integration of Polarion with enterprise systems (Jira, Enterprise Architect, MATLAB/Simulink, Jenkins, GitLab)
Delivery of workshops, admin/end-user training, migration planning, and governance rollout

Last 3 projects

since 2019	Automotive (Embedded R&D)	ALM / Polarion Consultant & Solution Architect – End-to-End ALM/DevSecOps Platform Implementation (Polarion-based)
2020 – 2023	Medical Software	ALM & DevOps Consultant – ALM/DevOps Transformation (Jira & SAP Solution Manager-based)
2013 – 2019	Automotive	Embedded Systems Engineer – Embedded Linux Automotive Telematics Systems Development

Tools

Competencies

Polarion ALM Architecture & Advanced Configuration
Requirements Engineering & Reuse Strategy (ASPICE, ISO 26262, V-cycle)
ALM/DevOps Integration & Process Optimization

Languages

French (Native)
English
German
Spanish

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Bram Westrik

by Anita-Dora Andreadis | 4. February 2026

Bram Westrik

Senior Program and Transition Manager

Senior Program and Transition Lead with 17 years of experience delivering international transition, programme, and project initiatives across complex, cross-cultural IT–business environments.
Extensive background in large-scale multinational transformations and transitions, working for global organizations across healthcare, life sciences, manufacturing, logistics, and public services.
Strong expertise in programme governance, portfolio management, and delivery control, including roadmap definition, risk and contingency planning, reporting, and budget oversight.
Proven ability to act as a bridge between executive leadership and delivery teams, translating C-level priorities into executable plans and restoring direction in blocked or conflicted initiatives.
Recognized for turnaround leadership, re-establishing governance, operating rhythm, accountability, and delivery momentum in complex and high-pressure programmes

Last 3 projects

2023 – 2025	Public Services / IT	Head of Programme Delivery – Implemented Agile project management and automated reporting; developed programme plans, roadmaps, and governance; strengthened risk management, delivery control, and senior stakeholder alignment across the organisation.
2022	Healthcare / Medical Devices	Project Portfolio Lead Compliance – Led critical compliance initiatives; redesigned compliance application and data landscape; supported global IT transition programme and advised executives on governance, risk, and delivery.
2020 – 2021	Healthcare IT Services	Interim Manager IT Operation – Acted as interim Head of IT Operations; led service operations teams; steered IT operations and in-flight projects; advised senior management on governance, organisational change, and service/process design.

Tools

Competencies

Programme & Transition Management
Portfolio Governance & Delivery Control
Organisational Change & Operating Model Design
IT Operations, Service Management & Transitions

Languages

Dutch
English
German
Spanish

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Michael Rubel

by Anita-Dora Andreadis | 4. February 2026

Michael Rubel

Senior SAP S/4HANA Transformation & Program Manager

Senior SAP S/4HANA Transformation, Project Manager and Activist PMO Lead with 18+ years of experience across the full SAP lifecycle, ranging from application consulting and project management to strategic leadership of large-scale S/4HANA transformations.
Strong expertise in SAP S/4HANA rollouts, data migrations, carve-outs, and post-merger integrations (PMI), delivering complex programs in energy, industrial goods, automotive, and manufacturing environments.
Proven experience acting as the link between business and IT, translating complex technical topics into strategic decisions and actionable delivery plans for executive- and C-level- stakeholders.
Extensive background in PMO and Activist PMO roles, including rollout planning, roadmap alignment, work package structuring, progress tracking, vendor steering, and Steering Committee reporting.
Former Principal at BCG Platinion and currently independent management consultant, combining top-tier consulting experience with hands-on delivery and interim leadership in SAP programs.

Last 3 projects

Since 2024	Energy	Project Manager S/4HANA Rollout – Project Manager of the entire SAP S/4HANA Commercial Core project in a DAX-30 enterprise for the rollout to the largest sub-group. Steering of project team for Finance, Controlling, Procurement and Logistics along all project phases with overall team size of ~300 resources. Part of program leadership team and reporting to SVP- and C-Level stakeholders.
2022 – 2024	Energy	Activist PMO Lead – Leader of the Activist PMO for several rollout entities; planned and structured S/4HANA rollouts from Fit-to-Standard through testing and go-live; coordinated test migrations, process testing, and executive reporting to CEO, CFO, and SVPs.
2021 – 2022	Energy	Subproject Lead Migration Factory – Subproject Lead for the Data Migration Factory in the S/4HANA program of a DAX-30 company; designed and implemented an industrialized migration approach; coordinated client, SNP, and local rollout teams; tracked migration progress, defects, and go-live readiness as well as go-live cut-over.

Tools

Competencies

IT Project Management & Project Management Office
SAP S/4HANA Transformations & Rollout Management
Business–IT Alignment & Executive Communication
SAP Data Migration, Carve-outs & PMI

Languages

German
English
Dutch
Spanish

Download Complete CV

Issam Djemili

Issam Djemili

Last 3 projects

Tools

Competencies

Languages

Heiko Rockenberger

Heiko Rockenberger

Last 3 projects

Tools

Competencies

Languages

Naoufal Guassim

Naoufal Guassim

Last 3 projects

Tools

Competencies

Languages

Bram Westrik

Bram Westrik

Last 3 projects

Tools

Competencies

Languages

Michael Rubel

Michael Rubel

Last 3 projects

Tools

Competencies

Languages

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