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Senior Machine Learning Engineer II

SumUpSofia, Bulgaria
On-site Full-time

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Experience Level

Senior

Qualifications

Ideal Candidate ProfileProven experience in developing and deploying scalable machine learning or AI solutions in extensive production settings, emphasizing reliability and performance. In-depth understanding of AI product development, including chatbot systems, retrieval-augmented generation systems, or similar conversational AI technologies. Advanced proficiency in Python, with practical experience in MLOps tools such as MLflow, Kubeflow, Airflow, or Langfuse. Familiarity with the complete ML workflow, encompassing feature engineering, data pipelines, model serving, monitoring, and alerting. Experience in deploying ML models on cloud platforms like AWS, GCP, or Azure.

About the job

About Our Team

The Global Operations team at SumUp is dedicated to creating an unparalleled customer experience in the fintech sector, with artificial intelligence at its core. As a vital member of our AI team, you will bridge machine learning engineering and tangible product impact, developing models and systems that enhance intelligent customer support for over 4 million merchants globally. This is not a research position; it's a dynamic engineering role where your contributions will directly influence the daily experiences of SumUp merchants.

Your Responsibilities

  • Design, build, and deploy robust AI solutions into production, prioritizing reliability and scalability.
  • Develop and maintain ML infrastructure and data pipelines to optimize data processing, model training, and serving.
  • Enhance and fine-tune machine learning models for peak accuracy and efficiency in large-scale applications.
  • Work collaboratively with data scientists, product managers, and backend engineers to convert business requirements into effective AI strategies.
  • Implement strong engineering practices including version control, CI/CD, and comprehensive testing frameworks.
  • Gather, preprocess, and organize extensive text datasets to facilitate superior model training and assessment.

About SumUp

At SumUp, we are committed to empowering small businesses by providing them with the tools they need to succeed in the digital economy. Our innovative payment solutions and dedicated team ensure that merchants can focus on what they do best—growing their business.

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