Senior Staff Machine Learning Engineer, Menu Personalisation
HelloFresh3 months ago
Toronto, CanadaStaff+
Responsibilities
- Set the technical direction and own the end-to-end ML systems stack for menu personalization, including feature pipelines, training workflows, model serving, experimentation tooling, and infrastructure.
- Partner with Data Scientists to bring research and experiments into reliable production services meeting latency, scalability, and observability requirements.
- Shape the personalization roadmap with Product and Engineering leadership using data and customer evidence.
- Operate, instrument, and continuously improve production systems.
- Raise the team’s technical bar through architecture reviews, mentorship, and hands-on production ML leadership.
- Make long-term architectural and platform decisions with multi-year impact.
- Establish engineering standards adopted by other ML and data teams across HelloFresh.
- Contribute to company-wide engineering initiatives and advance ML and data engineering practices.
Requirements
- 8+ years building and operating production machine learning systems with a track record of technical leadership at scale.
- Experience making durable architectural decisions that influenced teams beyond the candidate’s own team.
- Production experience with recommender systems or large-scale personalization is strongly preferred.
- Fluency with Python, Spark, Go, Kafka, and Kubernetes, plus hands-on experience with pipelines, model serving, and observability at scale.
- Statistical literacy for designing experiments and evaluating model performance accurately.
- Operational judgment for diagnosing system behavior, identifying root causes, and debugging systems under real load.
- Hands-on daily experience with AI tooling such as Claude Code, Cursor, and Copilot.
- Strong product sense, evidence-based decision-making, and the ability to translate technical work into business value.
- Strong ownership and execution orientation.
Categories
About HelloFresh
HelloFresh builds subscription meal kits for households, delivering pre-portioned ingredients and recipes to cook at home. The company sells direct-to-consumer across North America, Europe, and Australia under multiple brands, with revenue from recurring subscriptions and add-ons like market items. Founded in 2011 and headquartered in Berlin, HelloFresh is a public company listed in Germany (ETR) and operates its own fulfillment and last-mile logistics.