Available to hire
Hi, I’m Mariana da Silva Barbalho Arvelos. I’m a project-management, marketing, and data-analysis professional who has contributed to global teams at Amazon, Coca‑Cola, and L’Oréal. I enjoy turning data into actionable improvements, leading cross‑functional initiatives, and delivering measurable results for the business.
I bring strong hands‑on experience with process optimization, business support, stakeholder relations, and performance analysis. I’m proficient in Excel, Power BI, Photoshop, Illustrator, InDesign, Lightroom, Canva, and English, and I’ve earned multiple academic recognitions for my work.
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Language
Portuguese
Fluent
English
Advanced
Work Experience
Operational Excellence Specialist at Amazon
July 1, 2023 - PresentManaged operational efficiency projects, delivering analysis and reports to leadership. Developed solutions to optimize internal processes, reducing errors and improving performance. Engaged with stakeholders across departments to align goals and execute strategic initiatives.
Program Support Associate at Amazon
July 1, 2022 - July 1, 2023Supported program operations, delivering analyses and dashboards for leadership; collaborated with cross-functional teams to track KPIs and improve processes.
New Accounts Manager at Amazon
January 1, 2021 - July 1, 2022Managed new accounts, onboarding, and partner relationships; supported sales initiatives and developed reporting to monitor performance.
Marketing Intern / Business Intern at The Coca-Cola Company
January 1, 2019 - December 1, 2020Supported marketing initiatives with market data analysis, prepared reports for internal teams, and assisted with agency coordination.
Human Resources Apprentice at L’Oréal Procos a
March 1, 2016 - February 1, 2017Managed approximately 15 corporate benefits; provided internal employee support and liaised with suppliers; used SAP, Excel, and Microsoft Office to monitor HR processes.
Education
Bachelor's in Social Communication: Advertising & Marketing at Federal University of Rio de Janeiro (UFRJ)
January 1, 2016 - January 1, 2021Technological Degree in Multimedia Production at NAVETechnical / Colégio Estadual José Leite Lopes
January 1, 2011 - January 1, 2013Qualifications
Honorable Mention – UFRJ
January 1, 2017 - January 1, 2019Industry Experience
Consumer Goods, Software & Internet, Professional Services, Media & Entertainment, Retail
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
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