Backend Engineer, Transfers Gateway (Go & Payments)

SumUp; Berlin (NH); On-site; USD 45,000 - 60,000; Full time

Benefits offered by this job

Virtual Stock Options

25 days paid leave

Annual learning budget (2,000 EUR)

Health insurance

Hack Days / Hack Weeks

Job summary

SumUp is seeking a backend engineer to help build and maintain production money movement services. You will own end-to-end features, contribute to architectural design, and raise the bar on reliability and observability across multiple markets.

You’ll work with Go, AWS, Kafka, PostgreSQL, and Kubernetes in a highly collaborative, on-call environment. The role emphasizes ownership, learning, and a strong culture of code quality and continuous improvement.

Qualifications

• Experience building backend services in a modern environment, with production support.
• Proficient in Golang and able to learn other languages as needed.
• Comfort with cloud-based systems, containerized workloads, and automated delivery pipelines.
• Raise well-scoped pull requests, conduct thorough code reviews, and maintain high standards of code quality and test coverage.
• Understand system architecture, data modelling, and API design, and be eager to deepen this knowledge.

Responsibilities

• Build and maintain production money movement backend services, contributing to delivery, observability, and maintenance.
• Own end-to-end features and contribute to larger projects within the team’s domain.
• Contribute to technical design and implementation following architectural patterns and best practices.
• Improve service reliability by writing tests and enhancing monitoring.
• Support operations through on-call rotations, incident response, and post-incident reviews.
• Apply a backend and systems perspective during refinement, addressing risks and edge cases.
• Collaborate with Product, QA, and engineers to deliver end-to-end transfer and banking capabilities.

Skills

Golang

Backend development

Cloud-based systems

CI/CD / delivery pipelines

Code reviews

API design

Tools

Kubernetes

AWS

Kafka

PostgreSQL

Prometheus

Grafana

Job description

SumUp is seeking a backend engineer to help build and maintain production money movement services. You will own end-to-end features, contribute to architectural design, and raise the bar on reliability and observability across multiple markets.

You’ll work with Go, AWS, Kafka, PostgreSQL, and Kubernetes in a highly collaborative, on-call environment. The role emphasizes ownership, learning, and a strong culture of code quality and continuous improvement.