Senior Specialist, Customer Success

Our Purpose
Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.
Title And Summary
Senior Specialist, Customer Success (UK & Nordics)

Services is a key differentiator for Mastercard, providing cutting-edge services that help our customers grow. Focused on thinking big and scaling fast around the globe, this agile team is responsible for end-to-end solutions for a diverse global customer base. Centered on data-driven technologies and innovation, these services include consulting, loyalty and marketing programs, business experimentation, and data-driven information and risk management services.

Mastercard Dynamic Yield is seeking a Customer Success Manager (internal title: Senior Specialist, Customer Success) to bridge the gap between our advanced personalization technology and client success. This role is ideal for someone who can translate complex data into actionable strategies that drive measurable business outcomes.

You'll work closely with clients to understand their goals, define success criteria, and build tailored personalization plans using Dynamic Yield's platform. Your ability to synthesize technical information, manage projects, and communicate effectively will be key to ensuring high customer satisfaction and platform adoption.

Key Responsibilities

• Define success criteria with clients and translate data into actionable personalization strategies.
• Identify key segments and support user-centric optimization initiatives.
• Train clients on Dynamic Yield's platform and consult on best practices.
• Drive adoption and satisfaction through strategic guidance and proactive support.
• Coordinate internal and external resources to meet project goals.
• Lead regular client reviews via calls, presentations, or onsite meetings.
• Deliver projects on time and budget, resolving issues professionally.
• Communicate project status across internal teams and stakeholders.

Skills & Qualifications

• 2+ years in services or consulting, ideally in a SaaS environment.
• Expertise in at least 2–3 areas: Optimization, CRM, Personalization, Recommendations, Localization or Segmentation.
• Experience in onboarding or project management.
• Strong analytical skills; able to interpret data and simplify complex tech.
• Confident presenting to C-level executives.
• Skilled in multitasking, prioritization, and issue resolution under pressure.
• Passionate about customer success; able to work independently and cross-functionally.
• Experience with publishers or eCommerce clients.
• Degree in Economics, Business, or a marketing-related analytical field.
• Language Skills: Fluency in English is required. Proficiency in at least one Scandinavian language (e.g., Swedish, Norwegian, Danish, or Finnish) is strongly preferred.

Corporate Security Responsibility
All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:

• Abide by Mastercard's security policies and practices;
• Ensure the confidentiality and integrity of the information being accessed;
• Report any suspected information security violation or breach, and
• Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.