Company Overview
At SumUp, we build fintech solutions that empower over 4 million merchants across 37 markets to run and grow their businesses. Every day, this generates rich payments and business data - and SumUp's next-gen AI tools turn that data into practical insights and intelligent tools that create real merchant value.
Responsibilities
- Build end-to-end product features for SumUp's AI Initiative - from backend APIs, data pipelines, to user-facing services
- Integrate with core SumUp systems, databases, and internal tooling
- Write clean, testable, well-documented code following team standards
- Participate fully in team rituals: planning, technical discussions, code reviews, and knowledge-sharing sessions
- Learn and apply engineering best practices across software development, AI systems, and UI/UX design
- Take ownership, iterate quickly on ideas and prototypes, and learn by shipping real features
Requirements
- Recent graduate (Bachelors or Masters), final year student, or early-career professional (0–2 years experience) in Computer Science / Software Engineering or related fields
- Understand data structures, algorithms, and object-oriented programming
- Hands-on experience with at least one modern language (Python, Java, JavaScript, or Go preferred)
- Familiar with Git and collaborative workflows (branches, pull requests)
- Understanding of client-server architecture and HTTP fundamentals
- Awareness of RDBMS concepts, able to write simple SQL queries, and understands how data is structured and accessed
- Write clean, functional code and actively seek feedback for improvement
- Curious about AI, data, and how technology creates real merchant value
- Fast learner, welcoming of feedback, and enjoy working in collaborative cross-functional teams
Benefits
- Impact with Purpose: Ship products used by millions of small businesses worldwide while building SumUp's next-gen AI tools
- Career Path: Fast-track into a full-time role with a significant salary increase
- Diversity & Inclusion: Be part of a workplace that celebrates diversity and fosters an inclusion-first culture
- Fueled for Success: Free weekly breakfast, subsidized lunches, and access to in-office gym and sports club
- Social by Design: Gaming areas, rooftop drinks, and regular social events
- Paid Internship: 3,466€ per month, with potential for a significant increase for a full-time role