Staff ML Engineer (Product Recommendations)

Location: Berlin, Germany. If office presence is not required for the role, the workplace can be arranged individually, including up to 20 work-from-home days per year anywhere in the EU.

Company

hirify.global is a European e-pharmacy focused on providing digital health and pharmacy services.

What you will do

• Provide technical leadership for the Recommendations product and define the architecture and long-term technical direction of its ML systems.
• Design, build, and operate machine learning systems for candidate generation, ranking, personalization, product discovery, and recommendation optimization.
• Translate ambiguous product and business requirements into scalable solutions while balancing model quality, latency, reliability, scalability, and maintainability.
• Lead technical design and architectural decisions across modeling, data, infrastructure, and product requirements.
• Develop ML pipelines for feature engineering, training, evaluation, deployment, monitoring, and continuous model improvement.
• Mentor engineers, lead design reviews, communicate technical trade-offs, and establish ML engineering standards.

Requirements

• Extensive hands-on experience as a Machine Learning Engineer, ML-focused Software Engineer, or Data Scientist with strong engineering experience.
• Experience building and operating production-grade ML systems, pipelines, or model-based products.
• Strong experience with recommender systems, ranking, personalization, or product discovery systems.
• Demonstrated technical leadership across architecture, engineering practices, and technical direction.
• Understanding of ML failure modes such as data leakage, feedback loops, distribution shifts, and misleading offline metrics.
• Ability to make pragmatic system-level decisions and explain complex technical topics to technical and non-technical stakeholders.

Culture & Benefits

• Collaborative work with Data & AI colleagues, product managers, engineers, and business stakeholders.
• Individual work-from-home arrangements where the role does not require office presence.
• Up to 20 work-from-home days per year anywhere in the EU.
• Urban Sports Club membership and anonymous, free mental-health support.
• Deutschland Ticket and support for internal and external professional training.