Key Account Manager

Colibrix One; Warszawa; On-site; PLN 120,000 - 180,000; Full time

Benefits offered by this job

Career growth in fintech

Collaborative team

English/Spanish classes

Training reimbursement

Job summary

COLIBRIX ONE in Warsaw is seeking a proactive Key Account Manager to cultivate and expand merchant partnerships in a fast-growing fintech environment.

You will onboard clients, advise on products, and coordinate with finance, compliance and operations to deliver outstanding service.

Fluency in English and Russian helps you navigate a diverse B2B client base and drive sustainable growth.

Qualifications

• 1+ years’ experience in a regulated banking/payments role.
• Higher education in Business Management or Economics.
• Excellent written and verbal communication skills.
• Fluency in English and Russian.

Responsibilities

• Manage client onboarding and initial document review.
• Advise customers on products and services.
• Establish sustainable client relationships.
• Maintain and update the client database.
• Serve as single point of contact for merchants and coordinate with finance, compliance and operations.
• Anticipate client needs and work with the team to address issues and drive innovation.

Skills

Client experience

Communication

Strategic thinking

B2B experience

Education

Business/Economics degree

Job description

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 Key Account Manager at Colibrix One, you’ll play a vital role in building strong, lasting relationships with merchants, collaborating across departments, and driving innovation through a deep understanding of client needs. This is a client-facing, strategic position ideal for someone who thrives in a fast-paced fintech environment and is passionate about delivering exceptional service.

Key Responsibilities

• Manage client onboarding, including gathering and conducting an initial review of documents
• To advise our customers regarding products and services
• To establish sustainable customer relations
• To maintain and update the client database
• Act as a single point of contact for the merchant and facilitate dialogue between them and the different departments in finance, compliance, and operations
• Anticipate client needs, and the challenges they face, and work with the internal team to develop action plans for addressing issues and ideas that drive innovation and best practices

Your Profile:

• Passion for providing the best client experience
• Excellent communication skills, the ability to persuade and voice your opinion
• Dedicated, motivated, and confident personality is driven by personal achievements and accomplishments
• Previous experience in client-oriented role in the B2B sector
• Strategic and analytical thinking
• Ability to prioritize own workload and work with minimum supervision
• To be able to challenge established norms and proactively seek improvements and better solutions

What you need to succeed in this role:

• 1+ years’ experience preferably within a regulated entity in a similar role in a banking, payments
• Higher education: Business management, Economy, or other would be an advantage
• Experience working in a fast-paced environment
• Excellent written communication skills and ability to convey complex information in a clear, understandable way for the audience
• Fluency in English and Russian (proficiency in additional languages is considered 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.