Gabriela Sosa Stiassni
Barcelona,B
Summary
Strategic and results-oriented Global Change Director with over 15 years of experience leading complex, multi-region transformations. Expert in designing and executing global change strategies that drive leadership alignment, stakeholder engagement, and sustainable user adoption.
Combines deep analytical capability in change impact assessment with practical expertise in communications, training, and adoption frameworks that scale across countries and business lines. Recognized for building global change networks, implementing multi-channel communication strategies, and embedding adoption through structured hyper care and measurable outcomes.
Overview
2026
2026
years of professional experience
1
1
Certification
Work History
Global Change Director / Change Associate Director
CBRE
2021 - Current
- Owns the strategy and execution of global change initiatives across enterprise digital programs, leading cross-regional teams and ensuring readiness, engagement, and sustained adoption worldwide.
- Designed and executed end-to-end global change strategies for multi-wave rollouts across business lines and geographies.
- Led and mentored global change teams for major programs (Project JARVIS, Project TIGER) ensuring consistent execution and alignment to strategy.
- Managed regional programs independently (DECSO – Germany, HAZEL – Trammell Crow Company), leading all change activities directly.
- Built and operationalized a Global Change Agent Network across EMEA, APAC, and the Americas to localize engagement and accelerate adoption.
- Designed and implemented targeted communications through digital channels (Teams posts, intranet articles, micro-videos, newsletters).
- Developed modular, role-based training programs integrating digital learning and live sessions, achieving >90% readiness pre-Go-Live.
- Oversaw post-Go-Live hyper care and adoption analytics, reaching 80% user adoption within the first four weeks.
- Established a Change Management Center of Excellence with reusable frameworks, governance models, and toolkits for future rollouts.
Engagement & Change Partner
PAGEGROUP | Shared Service Center (EMEA)
01.2019 - 01.2021
- Defined and led the change strategy for Salesforce implementation and process improvements across EMEA markets.
- Developed the EMEA adoption roadmap, ensuring leadership alignment and sponsorship.
- Conducted detailed change impact analysis and readiness assessments by function and role.
- Designed communication and training programs leveraging digital channels and live virtual sessions.
- Introduced adoption metrics and dashboards to measure success.
- Designed engagement campaigns to maintain momentum post-deployment.
- Led global process redesign initiatives to improve operational efficiency and scalability (Bonus & Commissioning, Broadbean Request Management, Perm Process Improvement, Reference Check).
Senior Change Management Consultant (IT Transformation)
HOLA CONSULTORES (assigned to VUELING Airlines)
01.2018 - 01.2019
- Designed and implemented the change management framework used by the project team to guide execution across IT initiatives.
- Developed the overall change management plan, including governance, timelines, and stakeholder engagement.
- Focused on team alignment, collaboration models, and leadership communication.
- Designed communication and training strategies to prepare users and teams for new processes.
- Conducted targeted change impact analysis based on audience needs.
- Supported deployment and post-Go-Live activities to reinforce adoption.
Project Manager / Senior Consultant
HENKA CONSULTING
01.2015 - 01.2018
- Delivered organizational redesign, process improvement, and change enablement projects across retail, manufacturing, healthcare, and consulting sectors.
- Excelsior Gama (Retail): Designed and implemented the operating model for a new e-commerce platform.
- Integra International (IT Consulting): Redesigned marketing and commercial processes aligned to customer journey design.
- Henka (Internal): Created the operating model for online consulting delivery.
- MANPA (Manufacturing): SAP Organizational Redesign and team mobilization plan.
- Centro Médico La Trinidad (Healthcare): Redesigned administrative processes and delivered leadership training.
- PepsiCo (Retail): Led country-level change impact analysis for SAP implementation, developed mitigation plans pre-Go-Live, and managed adoption tracking, communication campaigns, and process review sessions to facilitate user adoption.
Knowledge Management Specialist III & II
BANESCO GRUPO INTERNACIONAL
01.2012 - 01.2014
- Led global initiatives to standardize and transfer best practices across subsidiaries in Panama, Dominican Republic, Spain, the U.S., and Venezuela.
- Designed the corporate knowledge management model across Marketing, Sales, Procurement, and Audit.
- Conducted maturity and standardization analyses.
- Defined and implemented knowledge transfer strategies improving operational alignment.
Senior Consultant / Consultant
DELOITTE
01.2009 - 01.2011
- Delivered business process improvement and transformation projects across financial, manufacturing, and public sectors, focusing on process optimization, organizational design, and performance metrics.
- CNE (Public Sector): Redesigned the Venezuelan Civil Registry using BPMN methodology and international benchmarks.
- KRAFT Latin America: Standardized sales processes and KPIs across Andean markets; defined automation requirements and data alignment.
- Banco Exterior: Developed an integrated Risk Management model aligning structure, processes, and compliance mechanisms with regulatory requirements.
Education
Master of Science - Industrial Systems, Manufacture And Management
University of Cambridge
UK01-2008
Bachelor of Science - Production Engineering
Universidad Metropolitana
Venezuela01-2007
Graduate Certificate in Industrial Management - Certificate in Industrial Management
Universidad Metropolitana
Venezuela01-2007
Skills
- Global Change Strategy Design & Delivery
- Agile, Scalable Change Frameworks
- Change Management
- Leadership Alignment
- Stakeholder Engagement
- Communications Strategy
- Training Strategy
- Multi-Channel Engagement Campaigns
- Verbal and Written Communication
- Change Network Design & Enablement
- Change Readiness Assessments
- Knowledge Transfer Strategies
- User Adoption Strategy
- Organizational Design
- Project Management
- Process Improvement
- Strategic Planning
- People Management
Certification
- PROSCI Certified Change Practitioner
- ESADE Business School – Influential Leadership (Up & Across)
- Negotiation (Harvard Model) – Cambridge International Consulting
- Business Process Modeling (BPMN) – Deloitte
- Organization Design, Data Analytics, Agile Foundations – LinkedIn Learning
Languages
Spanish (Native)
Bilingual or Proficient (C2)
English (Fluent)
Bilingual or Proficient (C2)
Portuguese (Professional)
Intermediate (B1)
Timeline
Engagement & Change Partner
PAGEGROUP | Shared Service Center (EMEA)
01.2019 - 01.2021
Senior Change Management Consultant (IT Transformation)
HOLA CONSULTORES (assigned to VUELING Airlines)
01.2018 - 01.2019
Project Manager / Senior Consultant
HENKA CONSULTING
01.2015 - 01.2018
Knowledge Management Specialist III & II
BANESCO GRUPO INTERNACIONAL
01.2012 - 01.2014
Senior Consultant / Consultant
DELOITTE
01.2009 - 01.2011
Global Change Director / Change Associate Director
CBRE
2021 - Current
Master of Science - Industrial Systems, Manufacture And Management
University of Cambridge
Bachelor of Science - Production Engineering
Universidad Metropolitana
Graduate Certificate in Industrial Management - Certificate in Industrial Management
Universidad Metropolitana