Senior Key Account Manager

About the role

Colibrix One builds AI-powered payment technologies for PSPs, EMIs and neobanks across the EU and UK, and is looking for a Senior Account Manager in Barcelona. You will own the most complex and strategically important merchant relationships, act as a go-to expert within the Account Management team, mentor colleagues and raise the standard of client service. It is a senior individual contributor role.

Key responsibilities

• Own a portfolio of high-value, high-volume and complex merchants as their trusted advisor and single point of contact across finance, compliance and operations
• Lead onboarding of complex or higher-risk merchants, including document review and close collaboration with Compliance on enhanced due diligence
• Handle escalations and sensitive client situations, driving resolution and protecting long-term relationships
• Identify growth opportunities (upsell, cross-sell, volume expansion) and contribute to client retention and revenue targets
• Monitor portfolio performance and client health, flagging risks and proposing action plans
• Mentor and coach Account Managers, support them with difficult cases and help new team members ramp up
• Contribute to training materials, internal playbooks and onboarding guides
• Act as the client's voice internally, feeding insights to Product, Compliance and Operations
• Challenge existing processes, lead efficiency initiatives and keep account records accurate and up to date

Required profile

• 2+ years in account management or a similar client-facing role within a regulated entity (payments, banking or fintech)
• Proven experience managing key or strategic accounts, including complex merchant onboarding
• Solid understanding of payments products, merchant risk and compliance requirements (KYC/KYB, AML)
• Experience mentoring or coaching colleagues is a strong advantage
• Higher education in Business Management, Economics or a related field is an advantage
• Fluency in English and Russian; additional languages are an asset

Required skills

• Negotiation, influence and clear written communication
• Strategic and analytical thinking, working with data to assess portfolio performance
• High level of autonomy and proactive problem solving

What we offer

• A collaborative and supportive team environment
• English / Spanish classes
• Reimbursement for work-related training and courses