Senior Key Account Manager

Colibrix One; Województwo mazowieckie; Presencial; PLN 120.000 - 180.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

English/Spanish classes

Training/courses reimbursement

Growth opportunities

Descripción de la vacante

COLIBRIX ONE is seeking a Senior Account Manager to own a portfolio of high-value merchants and drive growth. You will lead onboarding, coordinate with Compliance and Operations, and mentor junior team members. This role suits a fintech professional who thrives in a regulated environment and wants to elevate client service.

You will work closely with Product and Sales to shape improvements, manage escalations, and protect long-term relationships while pushing revenue targets.

Formación

• 2+ years in account management within regulated payments or fintech.
• Proven experience managing key/strategic accounts and onboarding complex merchants.
• Solid understanding of payments products, merchant risk, and AML/KYC requirements.
• Mentoring or coaching colleagues is an advantage.
• Higher education in Business or Economics is an advantage.
• Excellent written communication and ability to explain complex topics clearly.
• Fluency in English; Russian is a plus.

Responsabilidades

• Own a portfolio of high-value merchants, advising across finance, compliance and ops.
• Lead onboarding of complex merchants with due diligence and collaboration with Compliance.
• Handle escalations and protect long-term client relationships.
• Identify growth opportunities and contribute to revenue targets.
• Monitor portfolio performance and proactively flag risks with action plans.
• Mentor Account Managers and share knowledge to ramp up the team.
• Contribute to training materials, playbooks, and onboarding guides.
• Represent the voice of the client to Product, Compliance, and Operations.
• Challenge processes to improve efficiency and client experience.
• Ensure client database and records are accurate and up to date.

Conocimientos

Client relationship mgmt

Negotiation & communication

Mentoring

Data-driven thinking

Autonomy

Educación

Bachelor's degree in Business/Economics

Descripción del empleo

Join COLIBRIX ONE – Innovating the Future of Payments

At COLIBRIX ONE*, we’re building advanced, AI-powered payment technologies that support Payment Service Providers (PSPs), Electronic Money Institutions (EMIs), and neobanks across the EU and the UK. As a fully licensed Electronic Money Institution (FCA Reference No. 927920) and holder of a Financial Institution Licence issued by the MFSA, as well as a principal member of both VISA and Mastercard, we provide comprehensive, real-world financial solutions that include:

• Global card processing
• Digital wallet infrastructure
• Cross-border merchant accounts
• Alternative payment methods (APMs)
• Corporate accounts for legal entities

We’re a fast-growing team with a passion for innovation, security, and scalability. Our culture values curiosity, collaboration, and impact - and we’re looking for talented professionals who are ready to shape the future of fintech.

At COLIBRIX ONE, your work directly powers the digital economy. If you're eager to solve meaningful challenges and build with purpose, we’d love to hear from you.

About the Role

As a Senior Account Manager at Colibrix One, you'll take full ownership of our most complex and strategically important merchant relationships. Beyond managing a larger portfolio, you'll act as a go-to expert within the Account Management team: mentoring colleagues, sharing best practices, and helping raise the standard of client service across the team. This is a senior individual contributor role, ideal for an experienced fintech professional who wants to deepen their impact without moving into formal people management.

Key Responsibilities:

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

Your Profile:

• Strong client-first mindset with a track record of building long-term B2B relationships
• Confident communicator, able to negotiate, influence, and hold difficult conversations with senior client stakeholders
• Natural mentor who enjoys helping others grow and sharing expertise
• Strategic and analytical thinker, comfortable working with data to assess portfolio performance
• High level of autonomy: able to manage a complex workload and make sound decisions independently
• Proactive and solution-oriented, with the confidence to challenge established norms

What you need to succeed in this role:

• 2+ years' experience 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 informally coaching colleagues is a strong advantage
• Higher education in Business Management, Economics, or a related field is an advantage
• Excellent written communication skills and the ability to explain complex topics clearly
• Fluency in English and Russian (additional languages are an asset)

What We Offer:

• Opportunity to shape the future of fintech solutions within a growing company
• A collaborative and supportive team environment
• English / Spanish classes
• Opportunity to receive reimbursement for work-related training/courses

* This position is offered within the COLIBRIX ONE. Employment will be under the appropriate legal entity based on the role and location.