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Marianne Chang

@mariannechang

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Medical Representative at J&J, managing the Invega portfolio across Trinidad and Tobago, Aruba and Curaçao.

Trinidad and Tobago

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At J&J, I manage the Invega portfolio across Trinidad and Tobago, Aruba and Curaçao. Before that, at Apotex, I managed respiratory, urology, antibiotic and pain management portfolios, contributing to brand growth of 17% in FY 2024 and 25% in FY 2025.

Earlier, I published medical technology stories and interviews for Korea Biomedical Review and contributed to public health projects at Trinidad and Tobago’s Ministry of Health. My background also includes biomedical equipment maintenance and an MSc in Bioengineering from Seoul National University.

Experience

Work history, roles, and key accomplishments

Current

Medical Representative

Current

J&J T&T

May 2026 - Present (5 months)

Managing the Invega portfolio across T&T, Aruba and Curaçao.

Veeva Portfolio Management Customer Relationship Management

Medical Representative

Apotex

May 2024 - May 2026 (2 years)

Managed the Apotex respiratory, urology, antibiotic and pain management portfolios in the East, West and Tobago territories.

Veeva Portfolio Management Sales Customer Relationship Management

Biomedical Correspondent

Korea Biomedical Review

May 2022 - Oct 2023 (1 year 5 months)

Published feature stories and interviews for medical technologies at international conferences and press conferences.

Medical Journalism Writing Interviewing

Associate Professional

Ministry of Health

Jul 2017 - Jul 2018 (1 year)

Conducted PAHO radiology site visits for PACS feasibility consults, drafted the National Medical Equipment PM Policy, and mapped pharmaceutical distribution processes for optimizing SOPs.

PACS policy drafting Process Mapping SOP Optimization

Biomedical Technician Intern

North West Regional Health Authority

May 2017 - Jun 2017 (1 month)

Performed preventative maintenance, troubleshooting and repairs on medical equipment in the NWRHA.

Preventative Maintenance Troubleshooting Medical Equipment Repair

Education

Degrees, certifications, and relevant coursework

Seoul National University

Master of Science, Bioengineering

2019 - 2022

Grade: 4.06/4.3

MSc in Bioengineering with a thesis on the electromechanical behaviour of silver nanowire embedded PDMS. Achieved a GPA of 4.06/4.3.

The University of the West Indies

Bachelor of Science, Physics

2014 - 2017

Grade: 3.82/4.3

BSc in Physics with minors in Electronics, Medical Physics, and Bioengineering. Thesis on shoulder discomfort in competitive water polo players and swimmers. Achieved a GPA of 3.82/4.3.