SumUp

Senior Backend Engineer - MarTech

SumUp
Apply
18 days ago
Berlin, GermanySenior

Responsibilities

  • Design, build, and operate reliable backend services supporting marketing and growth initiatives.
  • Own features and engineering projects from discovery and technical design through delivery and production support.
  • Build and maintain integrations with internal and external platforms and ensure reliable data flows.
  • Define and evolve architectures for distributed services and event-driven systems.
  • Improve the reliability, quality, and operational excellence of existing and legacy services.
  • Collaborate with stakeholders to clarify requirements, communicate trade-offs, and shape priorities.
  • Contribute through testing, code reviews, documentation, and pragmatic technical decisions.
  • Pair with peers, share knowledge, and mentor less experienced engineers.

Requirements

  • 5+ years of professional backend engineering experience and strong experience with Go and its ecosystem.
  • Hands-on experience with distributed systems, microservices, event-driven architectures, event-streaming platforms, and messaging brokers such as Kafka.
  • Practical experience with DevOps practices and CI/CD tools such as GitHub Actions or Argo CD.
  • Strong understanding of software architecture, service boundaries, APIs, data flows, testing, and production operations.
  • Experience building new systems while maintaining and improving legacy services.
  • Strong written and verbal communication, stakeholder-management, ownership, and collaborative problem-solving skills.
  • Experience in marketing technology, growth, acquisition, advertising platforms, or fintech is preferred.
  • Familiarity with React, TypeScript, or Python is preferred.

Benefits

  • Office-first setup from SumUp’s Berlin office with collaboration across a global, distributed team.
  • Annual learning and development budget of €2,000 for conferences or further education.
  • Enrollment in the VSOP program.
  • Corporate pension scheme matching up to 20% of employee contributions.
  • 30-day sabbatical after completing three years of employment.
  • Hack Days every second Friday and global Hack Weeks.
  • Urban Sports Club subsidy, Kita placement assistance, relocation assistance, subsidized office lunches, and referral benefits.
  • Inclusive workplace with diversity and equal employment commitments.

Tech Stack

Categories

SumUp

About SumUp

1,001-5,000 employees

SumUp is a leading global fintech company committed to levelling the playing field for small businesses. Founded in 2012, we’re the trusted partner of over 4 million merchants in 37 markets, providing simple and affordable tools that help them manage payments, finance, and customer relationships. Our vision is a world where everyone can build a thriving business. Guided by this, we champion small business ownership by creating accessible solutions that empower entrepreneurs to grow and succeed. Our diverse team of over 3,000 SumUppers — representing more than 90 nationalities across 20 offices worldwide — is at the heart of our success. Beyond business, we donate 1% of the net revenue generated by Solo devices to environmental causes and support educational and entrepreneurial initiatives around the world. Recognised as a Top Global Employer for inclusion by the Stonewall Workplace Equality Index in 2022 and 2023, and awarded Fintech Diversity Initiative of the Year at the Irish National Fintech Awards in 2025, SumUp continues to build an inclusive, supportive, and purpose-driven workplace where everyone belongs.

Contact me