Joanna Díaz de Cerio Jara
Valencia
Summary
Experienced buyer and procurement specialist with a proven track record of 20+ years in supply chain and supplier management, strategic sourcing, and contract negotiation. Skilled at building strong supplier relationships, securing favorable terms, and ensuring the on-time delivery of high-quality products. Highly collaborative and adaptable, effectively responding to changing business needs while consistently driving results that contribute to organizational success. Expertise in cost control, and multidisciplinary decision-making in cross-functional project teams to assess needs, risks, and opportunities. Strong ability to drive efficiency, continuous improvement, and communication in international environments and between departments.
Overview
25
25
years of professional experience
Work History
Senior Buyer
Stadler Rail
Valencia
09.2011 - Current
- Budget planning process from the offer phase, ensuring cost alignment throughout the project lifecycle.
- Negotiation and procurement of jointly developed systems for international railway projects, securing optimal terms and supplier agreements.
- Manage relationships with global suppliers, ensuring adherence to quality standards, on-time delivery, and regulatory compliance.
- Purchasing Representative in cross-functional project teams, supporting strategic decisions.
- Implementation of continuous improvement strategies in procurement.
Logistics Specialist
Stadler Rail
Valencia
07.2008 - 08.2011
- Supply chain management for production operations, stock inventory.
- Coordination between Procurement and Quality for Non Conformities.
Logistics Specialist
Matricería y Estampación F. Segura
Valencia
02.2008 - 06.2008
- Responsible for timely and accurate delivery of automotive industry materials to customers.
- Maintained accurate records of all deliveries using automated systems and manual documents.
Supply Chain Coordinator
Honeywell
Alcalá de Henares
09.2004 - 02.2006
- Supply Chain of production materials for on-time manufacturing.
- Procurement of non-production materials, ensuring timely resource allocation.
Supply Chain Manager
Danone S.A.
Getafe
04.2002 - 10.2002
- Supervised and optimized supply chain operations to enhance efficiency.
Supply Chain Assistant
Danone S.A.
Pamplona
04.2001 - 04.2002
- Optimized stock distribution across clients, adjusting for inventory levels.
- Monitored daily service quality to ensure high performance.
Sales Analyst
Danone S.A.
Madrid
10.2000 - 04.2001
- Used PDPP software to forecast weekly product sales volumes.
- Supported purchasing decisions for the Tres Cantos factory.
Education
Bachelor's Degree - Economics
Universidad De Navarra
Pamplona, Spain06-2000
Commercial Management Course -
Universidad De Navarra
01-2000
Skills
- Strategic Negotiation & Purchasing
- SAP Procurement & Logistics Management
- Budget Control & Cost Efficiency
- Supply Chain Optimization
- Logistics & Materials Management
- Cross-Functional Collaboration
- International Supplier Management
- Data Analysis & Demand Forecasting
Languages
- English, Fluent (daily professional use)
- German, Conversational level
Timeline
Senior Buyer
Stadler Rail
09.2011 - Current
Logistics Specialist
Stadler Rail
07.2008 - 08.2011
Logistics Specialist
Matricería y Estampación F. Segura
02.2008 - 06.2008
Supply Chain Coordinator
Honeywell
09.2004 - 02.2006
Supply Chain Manager
Danone S.A.
04.2002 - 10.2002
Supply Chain Assistant
Danone S.A.
04.2001 - 04.2002
Sales Analyst
Danone S.A.
10.2000 - 04.2001
Bachelor's Degree - Economics
Universidad De Navarra
Commercial Management Course -
Universidad De Navarra