As a Senior Backend Engineer at SumUp, you will lead the design and implementation of robust backend systems for our innovative payment solutions, ensuring high performance and scalability in a fast-paced fintech environment.

SumUp is revolutionizing the payment industry by empowering millions of small businesses with seamless, affordable payment solutions. We are seeking a talented Senior Backend Engineer to join our engineering team and contribute to building the future of fintech.

In this role, you will be responsible for architecting and developing scalable backend services that power our core platform. You will work closely with frontend engineers, product managers, and data scientists to deliver features that enhance transaction processing, user authentication, and analytics capabilities. Our tech stack includes modern tools and practices to ensure reliability and efficiency at scale.

Key responsibilities include:

• Designing and optimizing backend APIs and databases for high-traffic environments
• Implementing secure, fault-tolerant systems compliant with industry standards
• Collaborating on code reviews, mentoring junior engineers, and driving technical initiatives
• Troubleshooting complex issues and improving system performance
• Staying ahead of emerging technologies to innovate within our ecosystem

If you are passionate about technology and making a real impact in the financial sector, SumUp offers an exciting opportunity to grow your career in a dynamic, supportive environment.

• Bachelor's degree in Computer Science or related field, or equivalent experience
• 5+ years of professional experience in backend development
• Proficiency in languages such as Java, Python, or Go
• Strong knowledge of databases (SQL and NoSQL), microservices architecture, and cloud platforms like AWS or GCP
• Experience with API design, RESTful services, and containerization (Docker, Kubernetes)
• Excellent problem-solving skills and ability to work collaboratively in agile teams
• Familiarity with fintech security standards and data privacy regulations (e.g., GDPR, PCI-DSS)

• Competitive monthly salary with performance-based incentives
• Flexible remote work arrangements and professional development opportunities
• Health insurance coverage and wellness programs
• Generous paid time off and parental leave policies
• Access to cutting-edge tools, conferences, and ongoing training
• Collaborative and inclusive company culture with team-building events