Gui Castro

I work on planning and implementing digital operations and products across different industries and business models (B2B, B2C — flagship, seller center, 3P marketplaces — and B2E), with a focus on building scalable and sustainable ecosystems. With 15+ years of experience and more than 40 projects delivered in sectors such as retail, healthcare, education, industry, and services, my expertise combines digital strategy, innovation, and applied artificial intelligence to structure businesses that grow with consistency and impact. Expertise: - Digital Strategy & Innovation: Designing roadmaps that connect business vision, technology, and operations, including the CDO as a Service model, where I act as an on-demand Chief Digital Officer to accelerate critical agendas. - Omnichannel & Multiplatform Operations: Building unified ecosystems, from marketplaces to hybrid operations (physical + digital). - Seller Center & 3P Operations Management: Structuring seller onboarding, marketplace expansion, and integration with third-party ecosystems. - AI Orchestration: Embedding artificial intelligence into decision-making, teams, and digital products to drive efficiency and maturity. - Team Structuring & Capability Building: Leading technical and strategic squads, aligning technology, processes, and customer experience. Areas of Focus: - Consulting in digital transformation, omnichannel, and AI applied to operations. - Mentoring for leaders in digital transition. - Team structuring and capability development. - AI Accelerator: a proprietary initiative to apply AI in diagnostics, prototyping, and optimization of digital operations. - Keynotes and workshops on innovation, e-commerce, scalable ecosystems, and applied artificial intelligence.

Chiefs.Group is a talent platform that connects senior executives who are available to work on demand with companies. I am part of this pioneering community of the Open Talent model and I am ready to help companies, startups and scale up to address their main challenges and strategic objectives. Get in touch: https://www.chiefsgroup.com.br/

I am part of the ESPM Mentors Community, composed of alumni dedicated to supporting the development of the Alumni network and institutional partners. The initiative fosters strategic connections, professional mentoring, and knowledge sharing among leaders within the ESPM ecosystem.

Mentoria de carreira e apoio a jovens-semente, bolsistas do Instituto Semear, universitários de baixa renda que desejam fazer do Brasil um lugar melhor, por meio do impacto social.

Leading project delivery and client service teams while serving as the strategic nexus between Business Development, Technology, Operations, and Customers to drive efficiency, innovation, and sustainable growth. Key Responsibilities: • Develop and execute strategic plans for client services and project delivery • Build, allocate, and lead high-performing cross-functional teams • Manage and grow strategic accounts by developing new revenue streams and enhancing end-customer digital experiences • Spearhead co-management of multi-platform digital operations, integrating technology with customer experience • Orchestrate new digital initiatives to ensure business-aligned deliverables • Develop and present technical proposals • Collaborate with technology teams to define and prioritize tech roadmaps • Continuously evolve service models to enhance customer experience • Implement next-gen customer service (Service 4.0) with fully digitalized, integrated support systems Key Improvements: "Atendimento" → "Customer Success" (modern SaaS term) or "Client Services" (traditional) "SAC 4.0" → "Service 4.0" (more internationally recognized than "SAC") Streamlined verb tenses to active voice ("Definição e execução" → "Develop and execute") "Co-gestão" → "Co-management" (kept but clarified with "spearhead" for leadership tone) Would you like me to: a) Adjust for a specific industry (tech, finance, etc.)? b) Create a shorter version for LinkedIn's headline field? c) Emphasize any particular achievement metrics?

Leading the management and development of B2B, B2C, and B2E e-commerce projects for domestic and multinational companies across pharmaceutical, electronics, chemical, food & beverage, healthcare, education, and retail sectors. Key Responsibilities & Achievements: Spearheaded digital operations implementation and migration for B2B/B2C/B2E platforms Deployed seller center ecosystems, including end-to-end seller onboarding frameworks Expanded Marketplace Out operations to drive digital growth and strategic integration Co-led omnichannel operations to optimize cross-channel synergy, processes, and CX Pioneered new business models through client/partner ecosystem collaboration, ensuring innovation and scalability

Leading the management, evolution, and scalability of marketplace operations by aligning technology, product, customer service, and seller relationships to maximize performance and sustainable growth. Key Responsibilities: Oversee digital strategy, platform development, and service enhancement teams to ensure operational excellence and optimized experiences for sellers and consumers Define and manage the technology roadmap while driving continuous improvement of user journeys through scalable, innovative, and operationally efficient initiatives

Spearheading end-to-end Marketplace development from business model validation to operational launch, including: • Millennium ERP system implementation • VTEX front-end platform development • Seller onboarding program management • Cross-functional B2C team leadership focused on operational excellence

Orchestrating technology solutions for Finance, HR, Logistics, Tax & Sales operations, bridging systems to maximize efficiency and business continuity. Core Expertise: • Enterprise IT infrastructure management (99.9% uptime) • Digital process automation & transformation leadership • Cross-departmental system integration • Operational risk mitigation & security compliance

Expert in digital content distribution systems supporting Investor Relations, with focus on: • End-to-end management of streaming platforms and international publishing workflows • Technical validation of global financial releases (ensuring regulatory compliance) • Platform optimization for maximum uptime and content delivery reliability