Seller Success Manager (m/f/d)

About the role

As our Marketplace model rapidly expands across Europe, maintaining operational excellence and trust across our third-party ecosystem is paramount. To support this rapid scaling and reduce operational friction, we are reorganizing our operations to streamline seller interactions and handle complex dispute mediations that sit between our sellers and customer care teams.

To help us with achieving this, we are hiring a Seller Success Manager to join our team in Portugal. In this critical role, you will act as the key point of contact for resolving multi-party operational challenges, balancing seller trust with customer satisfaction and business outcomes. You will analyze seller feedback, uncover recurring root causes, and partner across functions to continuously elevate the overall seller experience.

In this position, you will work toward building a seamless, high-trust marketplace platform by designing processes that reduce dispute rates and increase seller retention. You will collaborate closely with internal teams across Account Management, Customer Care, Tech, and Compliance to shape our operational frameworks. This is an exciting opportunity to join a fast-growing e-commerce scale-up, take ownership of high-impact operational decisions, and directly influence the continuous growth of our marketplace ecosystem.

What you will do

• Mediate complex dispute cases between sellers and customers that cannot be resolved independently, balancing customer experience, seller trust, and business impact.
• Analyze seller performance data, interactions, and feedback loops to identify systemic operational issues and improvement areas.
• Propose and execute strategic initiatives aimed at reducing friction, improving resolution times, and elevating platform reputation.
• Lead and coordinate cross-functional projects across the entire marketplace lifecycle to improve the end-to-end seller experience.
• Partner closely with Customer Care, Account Management, and Tech teams to optimize process design, dispute workflows, and communication standards.
• Establish clear KPIs and feedback metrics to track intervention efficacy and ensure ongoing process optimization.

What you bring to the role

• 3 to 5 years of experience in Marketplace operations, Customer Success, or Account Management.
• Proven track record in complex dispute resolution, stakeholder management, and cross-functional project execution.
• Strong analytical capabilities with experience utilizing operational data to drive workflow improvements.
• Excellent problem-solving, communication, and project management skills with a customer-centric focus.
• Solid understanding of e-commerce marketplace operations, policy frameworks, and dispute mechanisms.
• High level of autonomy, accountability, and a hands-on approach to problem-solving.
• Professional fluency in English (our company language).

What do we offer

Competitive salaries based on your professional experience
Stable employment in a fast-growing international company
A cafeteria benefits system that lets you choose from options such as life insurance, private medical care, a sports card, cinema tickets, and more
Transportation services available for all warehouse employees
Guaranteed 26 vacation days per calendar year, regardless of seniority
An extra day off to celebrate your birthday
Mental Wellbeing Program – free and confidential mental and physical health support services for you and your immediate family, covering a wide range of personal and work-related issues
AUTODOC corporate discount for purchasing car parts at special rates for personal use
Opportunities for advancement, further training (over 650 courses on soft and hard skills available on our e-learning platform), and coaching
Free English, German, and Polish language classes
Flexible working hours and hybrid work model

This job was posted on 23/09/2026, and is considering applications up to 6 weeks from this date.