Senior Machine Learning Engineer (E3)
Ocado Group2 months ago
Kraków, PolandSenior
Responsibilities
- Own the full production ML lifecycle from problem framing and data exploration through training, evaluation, deployment, serving, monitoring, and incident response.
- Make technical, cost, and product design decisions for ML and AI components across the portfolio.
- Build reliable, testable, scalable, maintainable, and reusable ML platform capabilities for product teams.
- Analyse production systems, identify failure modes, improve data quality, and address drift, training-serving skew, and model degradation.
- Design and implement offline evaluations and live A/B tests to validate hypotheses.
- Coach others, provide technical leadership on ML, collaborate with data scientists and software engineers, and communicate ML decisions to technical and non-technical stakeholders.
- Simplify live systems, reduce support burden and costs, and contribute to the technical direction of the platform with engineering and data science leaders.
Requirements
- Demonstrated production ML engineering experience across data, training, evaluation, deployment, serving, monitoring, and ongoing operations.
- Strong data fluency with tools such as BigQuery, SQL, pandas, Dataflow, or equivalents, including the ability to treat data quality as a first-class concern.
- Fluency in supervised and unsupervised learning, ranking models, recommendation systems, evaluation metrics, overfitting, and model selection.
- Practical experience with GCP and AWS; GCP is the primary environment and includes Vertex AI, BigQuery, and Dataflow.
- Strong production-grade Python skills and comfort working in codebases consumed by other engineers.
- Experience leading the technical design of ML projects, articulating trade-offs, and driving team decisions.
- Valued qualifications include experience with LLM-based systems, shared ML infrastructure or internal platforms, recommendation or search ranking at scale, cross-craft teams, A/B testing, experimentation platforms, and Java.
Benefits
- Life insurance, private health care through Luxmed, Multisport card, lunch vouchers, company share programs, and support for everyday and serious health problems.
- Access to the Learnebly platform, LinkedIn Learning, English classes, and a book library.
- Additional maternity and paternity leave, plus funding for nurseries and kindergartens.
- Hybrid work with two days per week in the office and flexibility to work from almost any location for up to 30 days per year.
- Centrally located offices with car and cycling parking, plus home office equipment.
- Career development opportunities to rotate between projects, teams, domains, and roles.
- Engineering culture with high test coverage and an agile environment, public speaking support, employee passion groups, and annual celebrations.
Tech Stack
Categories
About Ocado Group
Ocado Group builds and licenses the Ocado Smart Platform, an end-to-end e-commerce, fulfillment, and robotics solution for grocery retailers, along with logistics and operations services. It also operates Ocado Retail in the UK via a 50:50 joint venture with Marks & Spencer. Founded in 2000 and headquartered in Hatfield, Hertfordshire, Ocado is a public company listed on the London Stock Exchange.