Business Development Manager – Key Accounts

About WorldFirst

WorldFirst is a global cross-border payments and financial services platform, part of Ant International. We support businesses to trade and grow internationally by providing secure, compliant, and scalable payment solutions. As we continue to expand in Vietnam, we are building a strong local team to work with large, strategically important merchants and financial institutions.

The Role

This role is a client-facing position focused on both business development and key account management, working closely with large enterprise merchants and major banks in Vietnam. You will be responsible for acquiring new high-value merchants while acting as the primary point of contact for your assigned accounts throughout the merchant lifecycle, from onboarding through activation and long-term growth. The role requires close collaboration with internal teams across partnerships, marketing, technical support, risk, compliance, legal, and finance to ensure a high-quality merchant experience.

Key Responsibilities

• Acquire and grow a portfolio of large, strategically important merchants in Vietnam
• Act as the primary point of contact for key accounts, managing relationships throughout the contract lifecycle
• Lead merchant onboarding and ensure a smooth transition from onboarding to active operations
• Provide end-to-end support for merchant inquiries via email, phone, and direct engagement
• Coordinate with internal teams to resolve operational, technical, risk, and compliance-related issues
• Provide accurate guidance and education to merchants on products, processes, and regulatory requirements
• Handle complex cases, difficult conversations, and complaints in a professional and timely manner
• Maintain regular contact with merchants to build long-term business relationships
• Capture merchant feedback, identify trends and risks, and escalate urgent issues when required
• Maintain accurate records in CRM systems and support reporting and market analysis

Requirements

• Bachelor’s degree or equivalent practical experience
• Experience in business development, key account management, or hunter-style sales roles
• Background in fintech, payments, e-commerce, internet companies, financial institutions, or transaction processing is preferred
• Proven experience managing enterprise or large-scale clients
• Strong customer-facing communication skills (email, phone, and in-person)
• Ability to work independently, manage multiple priorities, and make sound commercial decisions
• Strong problem-solving skills with the ability to handle complex and sensitive situations
• Comfortable working cross-functionally in a fast-paced environment
• English proficiency required; Mandarin working knowledge is preferred
• Global or regional working experience is a plus