Gabriel Barreiros
B2B Ad Sales & Digital Growth Specialist
Athens
Summary
Senior business and commercial professional with 15+ years of experience in B2B client management, business development, and operations, built primarily in enterprise, SaaS, and technology-enabled services across Latin America and Europe. Strong background in strategic account management, consultative sales, and customer success, having managed multimillion-euro global accounts, negotiated complex contracts, and worked directly with C-level stakeholders in multinational environments. Former LATAM Director and Founder, with proven exposure to revenue ownership, go-to-market strategy, and scaling B2B solutions for both large enterprises and SMBs. After relocating to Greece as part of a long-term career transition, intentionally accepted an operational role within Teleperformance to establish local market experience, regulatory stability, and continuity in Europe. In parallel, remained commercially active through freelance B2B consulting, supporting SMBs with sales execution, digital growth, and pipeline development. Currently positioned to contribute in B2B sales and advertiser-facing roles where strong communication, structured sales processes, and the ability to translate business needs into practical commercial solutions are critical.
Overview
2026
2026
years of professional experience
3
3
Languages
Work History
Bilingual Customer Service Sales Representative
Teleperformance Greece
Athens, Greece
10.2025 - Current
- Manage inbound and outbound B2B interactions for a multinational tobacco client, supporting the Portuguese market.
- Identify commercial opportunities, promote product portfolios, and drive revenue growth through consultative sales.
- Build trusted relationships with business clients, ensuring compliance, customer satisfaction, and long-term engagement.
- Use CRM tools to track pipeline activity, follow-ups, and performance metrics.
- Consistently meet quality, productivity, and sales KPIs in a regulated environment.
Customer Success / Account Management – Digital Solutions (Portuguese & Spanish Markets)
Adobe (via Partner / Project-based Engagement)
Athens, Greece
07.2025 - 09.2025
- Supported SMB and mid-market business customers in the Portuguese and Spanish markets, using Adobe digital and marketing solutions.
- Managed a portfolio of advertiser and business accounts, focusing on adoption, retention, upsell, and value realization.
- Acted as a consultative commercial partner, identifying growth opportunities and recommending solutions aligned with customer objectives.
- Analyzed account performance and usage data to deliver data-driven optimization insights and ROI-focused recommendations.
- Collaborated closely with internal sales, technical, and success teams to improve customer outcomes and revenue expansion.
- Maintained strong, long-term client relationships through proactive communication and structured follow-ups.
Bilingual Technical Support Representative
Teleperformance Greece
Athens, Greece
- Worked on global technology and digital advertising-related projects, supporting international advertisers.
- Managed advertiser relationships, identified upsell opportunities, and contributed to revenue targets.
- Provided campaign-related guidance, performance insights, and product recommendations.
- Recognized for strong communication skills, adaptability, and results-driven mindset.
- Previous Tenure
Founder & CEO – B2B Platform & Digital Marketplace
OGA Tech
São Paulo
01.2020 - 01.2023
- Founded and scaled a B2B ESG and digital marketplace platform, connecting small producers to enterprise and retail clients.
- Led go-to-market strategy, B2B sales development, partnerships, and revenue generation.
- Negotiated strategic partnerships and commercial agreements, expanding market reach.
- Successfully raised R$2.3M in international venture capital, including investment from a Spanish fund.
- Drove product positioning, client acquisition, and operational scaling in a fast-growth environment.
Director LATAM – Global Accounts & Strategy
Argo Solutions (Acquired by Amadeus Group)
2017 - 2020
- Led global and regional B2B accounts across the travel and technology ecosystem, managing multinational enterprise clients.
- Owned P&L, pricing, forecasting, and contract negotiations for strategic accounts across LATAM.
- Managed and developed multicultural teams (60+ FTEs) across multiple countries.
- Drove commercial transformation initiatives, contributing to international expansion into 20+ countries.
- Played a key role in the company’s acquisition by Amadeus, including post-merger integration activities.
Education
Bachelor’s Degree - Economics
Fundação Armando Alvares Penteado
São Paulo, Brasil 04.2001 -
Skills
B2B Sales & Consultative Selling
Digital Advertising & Paid Media Solutions
Advertiser Account Management
Campaign Optimization & Performance Analysis
Upselling & Cross-selling Strategies
Client Retention & Relationship Management
Inbound & Outbound Sales
CRM & Sales Pipelines
Additional Information
- Eligible to work in Greece
- Experienced expatriate professional
- Comfortable in fast-paced, target-driven sales environments
- Strong interest in digital marketing, social media advertising, and performance media
Timeline
Bilingual Customer Service Sales Representative
Teleperformance Greece
10.2025 - Current
Customer Success / Account Management – Digital Solutions (Portuguese & Spanish Markets)
Adobe (via Partner / Project-based Engagement)
07.2025 - 09.2025
Founder & CEO – B2B Platform & Digital Marketplace
OGA Tech
01.2020 - 01.2023
Bachelor’s Degree - Economics
Fundação Armando Alvares Penteado
04.2001 -
Bilingual Technical Support Representative
Teleperformance Greece
Director LATAM – Global Accounts & Strategy
Argo Solutions (Acquired by Amadeus Group)
2017 - 2020