Engineering Manager - Edge AI

Our AI Platform & Edge team sits at the heart of how Sum Up is scaling intelligent, merchant-facing experiences across millions of interactions. We build and operate the AI systems — from LLM-powered assistants to agentic platforms — that directly shape how merchants get support, resolve issues, and engage with Sum Up's products. As Engineering Manager for Edge, you'll take ownership of a growing, cross-functional team of engineers and ML specialists, leading the execution of some of our most technically complex and commercially critical AI initiatives.

This is a rare opportunity to lead meaningful AI work at scale — not just shipping features, but shaping how an entire platform evolves.

• Lead the day-to-day execution of the Edge AI team, translating long-term product vision into clear sprint roadmaps and measurable delivery milestones

• Own the migration of our AI assistant to an autonomous agentic setup, maintaining performance while expanding AI support across all merchant-facing channels

• Set the technical direction for LLM-powered system design, making clear tradeoffs across quality, latency, and cost

• Build a data-informed engineering culture by defining performance metrics, tracking delivery velocity, and using insights to continuously improve team health and throughput

• Hire, mentor, and develop a team of engineers and ML specialists — including interns — creating an environment where people grow and do their best work

• Strong hands-on background in ML/AI engineering or data science, with experience leading a team delivering production AI products

• Deep technical knowledge of LLM-powered system design, including RAG, embeddings, tool/function calling, and orchestration frameworks such as Lang Chain or Llama Index

• Proficiency in Python and core AI/ML libraries, including PyTorch and Hugging Face Transformers, with solid LLMOps/MLOps and CI/CD practices

• Proven track record of launching AI features end-to-end in production — from problem framing and prototyping through to reliable, measurable delivery

• Ability to lead with clarity, empathy, and accountability — building inclusive, high-performing teams while navigating ambiguity and managing stakeholders across technical and non-technical domains

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

• 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

• Enrolment onto our Virtual Stock Option programme: you will own a stake in Sum Up's future success

• A dedicated annual L&D budget of €2000 for your individual development, which can be used to attend conferences and/or advance your career through further education

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

• Generous time off: enjoy 28 days of paid leave plus public holidays and special leave days

• Numerous other benefits such as Urban Sports Club subsidy, Kita placement assistance, subsidised office lunches

• Break4me: 1-month sabbatical after 3 years of service

• Referral Bonus: earn additional rewards by referring talented individuals to join the Sum Up team

Be empowered to do more that matters.

At Sum Up, we're on a mission to empower small businesses across the globe by providing simple and affordable tools that allow them to thrive. Today, over 4 million businesses in 37 markets rely on Sum Up as their financial partner to manage payments, finance and customer relationships.

Our commitment to small businesses is reflected in our diverse team of over 3,000 Sum Uppers from over 90 nationalities, united by global collaboration and an innovative mindset. Our core values lay the foundation for who we are and what we stand for, shaping our work culture and driving our success. We foster inclusivity and a continuous learning culture, providing a safe space for personal and professional growth.

Our differences make us unique and strong as we strive to…