Senior Technical Product Manager - Identity

About the team:

The Identity team sits at the centre of SumUp’s ecosystem, connecting every product and merchant experience. As part of the Platform Tribe, the team plays a key role in ensuring that millions of customers can securely access and trust SumUp. Its mission spans backend systems, infrastructure, and customer-facing journeys, delivering reliable authentication and access flows that protect users at significant scale, including millions of MFA interactions each month.

Over the past years, the team has expanded from building core identity capabilities to enabling more advanced and merchant-focused experiences. Today, Identity is entering a new phase that includes creating richer organisational structures, improving integration capabilities, and strengthening security in line with growing regulatory and technological needs.

The team owns crucial platform components such as authentication, access management, profiles, permissions, and feature settings. Joining Identity means contributing to systems that power the entire SumUp ecosystem and shape how merchants interact with our platform.

 

What you’ll do:

• Define and refine the roadmap for authentication, authorization, and identity services by using data, feedback, and aligning with stakeholders.
• Collaborate with engineering, security, and compliance teams to design, iterate and deliver features across SSO, MFA, roles & permissions, and new organisational models.
• Craft clear problem statements that translate technical platform work into meaningful merchant and product outcomes.
• Track product health through key metrics like login success and MFA usage, and drive initiatives that improve reliability, performance, and resilience.
• Engage with internal product teams and external partners to ensure the smooth enablement and adoption of SumUp's identity APIs across the ecosystem.
• Coordinate efforts that improve security, streamline critical flows, and manage data or access transitions in a safe and scalable way

 

You’ll be great for this role if you have:

• Demonstrated success in leading product delivery within a complex domain with multiple systems, specifically managing Platform products.
• Possess the technical fluency required to be a strong partner to engineering teams—comfortable reading API specifications, understanding system architecture, and actively contributing to solution design.
• Strong experience in defining, interpreting, and leveraging key technical metrics (e.g., latency, error rates, authentication success). You use monitoring tools, analytics, and experimentation to prioritise and validate product improvements.
• Exceptional abilities to guide cross-functional teams and influence stakeholders across Product, Platform, Security, and Compliance, effectively securing buy-in and managing trade-offs.
• The ability to effectively handle multiple competing priorities with minimal direction, consistently advancing long-term strategic goals.
• An understanding of core authentication and authorization standards such as OAuth 2.0, OpenID Connect (OIDC), and MFA mechanisms.

 

Why you should join SumUp:

🌍 Opportunity to work with SumUppers globally on large-scale fintech products used by millions of businesses worldwide, from our Berlin office. This involves an office-first setup

🧑‍🔬 We take learning and experimentation seriously with Hack Days every second Friday, and entire global Hack Weeks.

🌈 Commitment to Diversity and Inclusion: Be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced

📚 A dedicated annual L&D budget of €2,000 for attending conferences and/or advancing your career through further education

🚀 Enrolment onto our VSOP program: You will own a stake in SumUp’s future success

💶 A corporate pension scheme where we match up to 20% of your contributions

🔄 30 Days Sabbatical: Enjoy the unique opportunity to take a well-deserved break with our 30 days sabbatical benefit after completing 3 years of employment with SumUp

🔗 Referral Bonus: Earn additional rewards by referring talented individuals to join the SumUp team

🚵🏾‍♂️ Numerous other benefits such as Urban Sports Club subsidy, Kita placement assistance, relocation assistance, subsidised office lunches

 

SumUp is an Equal Employment Opportunity employer that proudly pursues and hires a diverse workforce. SumUp does not make hiring or employment decisions on the basis of race, colour, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual ori