Sofia Rebeca Perez Rojas
Industrial Chemistry
Heredia
Summary
Industrial Chemistry professional with over 8 years of experience in quality control, process management, and continuous improvement. Skilled in method validation, inventory management, workflow optimization, and staff training. With knowledge in Lean Six Sigma and Project Management, with strong analytical skills and a results-oriented approach. Seeking to contribute to manufacturing and quality engineering by ensuring operational efficiency, compliance, and excellence in production.
Overview
15
15
years of professional experience
1
1
Language
Work History
Specialized Technician 6
Organismo De Investigacion Judicial (OIJ)
07.2015 - 05.2024
- Led process improvement projects applying Lean Six Sigma and 5S methodology.
- Coordinated and planned analytical activities, ensuring compliance with deadlines and production indicators.
- Performed method validation and intermediate verification of measurement instruments (balances, micropipettes).
- Designed and delivered training programs for staff on technical procedures and equipment handling.
- Drafted and reviewed Standard Operating Procedures (SOPs) to ensure compliance with quality standards.
- Participated in non-conformity investigations and implemented corrective actions.
- Managed inventory control and forensic evidence storage systems.
- Development and implementation of training processes for OIJ Criminal Investigators, both face-to-face and virtual.
Lab Assistant
Reagent Preparation Laboratory (LAPRE), National University of Costa Rica
07.2011 - 12.2015
- Prepared reagents and solutions for teaching laboratories.
- Coordinated with academic staff and managed chemical inventory.
Research Assistant
POLIUNA - National University of Costa Rica
02.2013 - 06.2015
- Supported polymer synthesis and characterization research.
- Contributed to semi-industrial production of chitin.
- Assisted in inventory management and research documentation.
Accounting Assistant
Servicios Contables Bargen
03.2009 - 06.2010
- Handled expense coding, invoice grouping, and cash closures.
- Supported administrative and financial operations.
Education
Certificate - Preparation For PMP® Certification
Prime Institute
Peru 05.2001 -
Certificate - Power Business Intelligence (Power BI)
Prime Institute
Peru 05.2001 -
Certificate - Introductory Program in Digital Skills
IMMUNE Technology Institute / MICITT / Cooperacion Española
Spain 05.2001 -
Certificate - Excel Business - Basic - Intermediate - Advanced
Prime Institute
Peru 05.2001 -
Certificate - SAP: QM - WM And Business One
Prime Institute
Peru 05.2001 -
Certificate - MS Project - MS Project 2016
Prime Institute
Peru 05.2001 -
Certificate - Project Management
Prime Institute
Peru 05.2001 -
Diploma - Quality in Analytical Chemistry Laboratories
Metroquimica
Argentina 05.2001 -
Certificate - Six Sigma: Define And Measure
Technical University of Munich
Germany 05.2001 -
Certificate - Good Laboratory Practices According To The OECD
MICITT
Heredia 05.2001 -
Certificate - Lean Six Sigma Green Belt
OIJ
Heredia 05.2001 -
Certificate - Excel: Data Management (XLS201x)
Polytechnic University of Valencia
Spain 05.2001 -
Certificate - Project Management Fundamentals (IGP101x)
Polytechnic University of Valencia
Spain 05.2001 -
Bachelor of Science - Industrial Chemistry
National University of Costa Rica
Heredia, Costa Rica 05.2001 -
Skills
- Continuous Improvement (Lean, Six Sigma, 5S)
- Quality Control & Method Validation
- SOPs Development & Documentation
- Non-Conformity Analysis & Corrective Actions
- Inventory & Supply Chain Management
- Staff Training & Team Leadership
- Microsoft Office & Advanced Excel
- E-learning Platforms (Moodle)
- Power BI
- SAP
Timeline
Specialized Technician 6
Organismo De Investigacion Judicial (OIJ)
07.2015 - 05.2024
Research Assistant
POLIUNA - National University of Costa Rica
02.2013 - 06.2015
Lab Assistant
Reagent Preparation Laboratory (LAPRE), National University of Costa Rica
07.2011 - 12.2015
Accounting Assistant
Servicios Contables Bargen
03.2009 - 06.2010
Certificate - Preparation For PMP® Certification
Prime Institute
05.2001 -
Certificate - Power Business Intelligence (Power BI)
Prime Institute
05.2001 -
Certificate - Introductory Program in Digital Skills
IMMUNE Technology Institute / MICITT / Cooperacion Española
05.2001 -
Certificate - Excel Business - Basic - Intermediate - Advanced
Prime Institute
05.2001 -
Certificate - SAP: QM - WM And Business One
Prime Institute
05.2001 -
Certificate - MS Project - MS Project 2016
Prime Institute
05.2001 -
Certificate - Project Management
Prime Institute
05.2001 -
Diploma - Quality in Analytical Chemistry Laboratories
Metroquimica
05.2001 -
Certificate - Six Sigma: Define And Measure
Technical University of Munich
05.2001 -
Certificate - Good Laboratory Practices According To The OECD
MICITT
05.2001 -
Certificate - Lean Six Sigma Green Belt
OIJ
05.2001 -
Certificate - Excel: Data Management (XLS201x)
Polytechnic University of Valencia
05.2001 -
Certificate - Project Management Fundamentals (IGP101x)
Polytechnic University of Valencia
05.2001 -
Bachelor of Science - Industrial Chemistry
National University of Costa Rica
05.2001 -
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