Natan Castanhera Beraldi

Passionate Sales Engineer with 5+ years of experience specializing in fintech solutions, API and SDK integrations, with a strong background in both pre-sales and post-sales support. Proven track record in driving business growth through innovative solutions and exceptional client support, while managing complex technical projects and delivering high-impact presentations to stakeholders. Committed to enhancing client satisfaction and achieving company objectives. Throughout my career, I've had the opportunity to work with clients across a wide range of industries — including energy and fuel, e-commerce and marketplaces, fitness and wellness, sports betting, consumer electronics, pharmacy retail, mobility and recurring payments, fintech, banking, condominium management, grocery retail, fashion and apparel, and many others — developing a strong ability to understand each business's unique needs and translate them into effective technical and payment solutions. Key Achievements: - Successfully structured and delivered customized projects across credit cards, Fintech SaaS (CoreBanking), fraud prevention, KYC, eFx, and acquiring while leading end-to-end merchant onboarding through SDK, direct API, and redirect integration flows.- Managed cross-functional escalations involving go-live blockers, production incidents, and fraud validation, coordinating between merchants and internal engineering, product, and security teams to ensure fast resolution and minimal business impact.-Designed and implemented complex payment architectures including card vaulting, token migration, recurring payments (CIT/MIT), installment plans, 3DS flows, and multi-seller structures.- Drove internal process improvements through automation (n8n, Gong, Jira, Google Calendar) and developed training materials that improved team knowledge and client understanding of solutions.- Collaborated with product and engineering teams to raise and prioritize feature requests based on merchant needs, contributing to reconciliation enhancements, multi-payment support, and provider-specific integrations.- Structured the Sales Engineer area, defining processes and performance requirements to support scalable team growth