Sérgio Barroso
Porto,Portugal
Summary
Detail-oriented and analytically-driven Accounting graduate (ISCA-UA) with hands-on experience in financial administration, cash flow simulation, and data management. Proven ability to leverage advanced Excel for complex data manipulation and process optimization. Possesses strong critical thinking skills for credit risk assessment and operational decision-making. Fluently bilingual (English/Portuguese) and highly motivated to contribute operational rigor to banking and corporate finance teams.
Overview
2
2
years of professional experience
Work History
Independent Passenger Transport (TVDE)
Uber and Bolt Driver
Braga, Porto, Aveiro and Algarve
04.2024 - Current
- Planned and optimized travel routes using GPS telemetry to minimize transit times and reduce operational costs.
- Ensured strict compliance with mandatory technical inspections, vehicle maintenance schedules, and regulatory documentation.
- Demonstrated high adaptability and rapid crisis resolution during unexpected real-time operational challenges.
Administrative & Accounting Support Intern
Carolinas
Trofa
05.2026 - 05.2026
- Streamlined financial operations by managing invoicing, receipts, and account reconciliations.
- Acted as a key liaison between Clients, Sales Representatives, and the Chief Financial Officer (CFO), ensuring accurate financial reporting and communication.
- Managed daily financial correspondence and resolved administrative discrepancies efficiently.
E-Commerce & Dropshipping Ventures
Atlas Online Commerce LLC
11.2025 - 04.2026
- Bulk Data Management: Exported complex datasets from Shopify to Excel, performing advanced data manipulation and cleansing to optimize product management and stock efficiency.
- Financial Performance: Managed advertising budgets across Facebook Ads and Google Ads, analyzing ROI and performance metrics to maximize conversion rates.
- Process Automation: Built and managed automated email marketing workflows (Klaviyo, Aftersell, ysms) to improve customer retention and revenue streams.
Business Simulation Project | ISCA-UA
Financial & Corporate Management Simulation
Aveiro
02.2025 - 06.2025
- Co-founded and managed simulated automotive repair and trade corporation in Portugal, ensuring compliance with accounting, tax, and corporate governance standards.
- Directly responsible for analyzing financial balance sheets, forecasting cash flows, and making data-driven strategic decisions to increase profitability.
- Identified and mitigated operational bottlenecks, enhancing corporate risk assessment capabilities.
Education
Bachelor of Accounting -
ISCA - Universidade de Aveiro
01-2026
Skills
- Financial & ERP Systems: Sage, PHC, Shopify, Klaviyo
- Data Tools: Advanced Excel
- AI & Automation: ChatGPT, Facebook Ads, Google Ads
Languages
Portuguese
Proficient
C2
English
Advanced
C1
Spanish
Intermediate
B1
French
Elementary
A2
Timeline
Administrative & Accounting Support Intern
Carolinas
05.2026 - 05.2026
E-Commerce & Dropshipping Ventures
Atlas Online Commerce LLC
11.2025 - 04.2026
Business Simulation Project | ISCA-UA
Financial & Corporate Management Simulation
02.2025 - 06.2025
Independent Passenger Transport (TVDE)
Uber and Bolt Driver
04.2024 - Current
Bachelor of Accounting -
ISCA - Universidade de Aveiro