Senior Data Engineer

Bayer; Województwo mazowieckie; Hybrid; PLN 206,000 - 246,000; Full time

Benefits offered by this job

Medical care

Flexible benefits

Pension plans

Home office allowance

Company car

Job summary

Bayer AG in Poland is seeking a Senior Data Engineer to join the Data & AI Team. You will design, implement and operate robust data pipelines for clinical studies in our Data Lakehouse, partnering with business and IT to ensure timely, high‑quality data delivery for scientists and AI agents.

The role emphasizes collaboration in an agile environment, adherence to data governance, and scalable architecture. A strong background in Databricks, Python (PySpark), and cloud tooling, plus experience

Qualifications

• Bachelor's degree required.
• 5+ years in data engineering or similar roles.
• Experience delivering production data pipelines.
• Strong documentation and data governance mindset.

Responsibilities

• Lead development and operation of reliable data pipelines for clinical data.
• Collaborate with stakeholders in an agile setup to specify data requirements.
• Maintain a coherent, scalable data landscape and enforce best practices.
• Contribute to integration patterns and secure data access for humans, systems, and AI agents.
• Collaborate with infrastructure teams to ensure robust, secure architecture.
• Mentor colleagues and uphold high standards in engineering practices and testing.

Skills

Databricks

Python (PySpark)

Git & CI/CD

Data security

Analytical thinking

Communication

Team collaboration

Education

Bachelor's degree in computer science, data science, information technology, or a related field

Tools

Databricks

Terraform

GitHub Actions

REST/GraphQL

Job description

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At Bayer, we believe work should matter. Every day, our teams push toward a future where "Health for all, Hunger for none" is within reach, and every role, from the lab to the field to the boardroom, helps us get there. We give people the ownership to shape outcomes, the support to grow through new skills and experiences, and a global community where different perspectives are valued. If you want your work to count and the room to become your best, you'll find it here.

At Bayer, we are committed to transparency, equal pay for equal work or work of equal value, and objective reward practices in line with EU and local regulations. The minimum monthly gross compensation for this role is 20 240 PLN, with final pay determined based on objective factors such as experience, qualifications, scope of responsibility, and internal alignment.
This position is eligible for variable pay components, such as performance‑based bonuses, awarded in accordance with the applicable employee group, role scope, and compensation structure.

In addition, Bayer offers a competitive and holistic benefits package, including:

- Medical careabove statutory requirements

- Flexible benefitssupporting leisure, and well‑being/sports programs

- Life, accident, and disability insurancethrough group coverage

- Employer‑supported pension planswith regular company contributions

- Home office allowanceto support hybrid or remote work

- Company car provided (as a working Benefit)

Benefits may vary depending on country, role, and employment conditions.

As a Senior Data Engineer, you are part of Bayer's Data & AI Team with a focus on creating data solutions that provide timely, high‑quality data to scientists, analysts, and AI agents. You will closely collaborate with experts from business and IT to design, implement and operate reliable GxP‑validated data pipelines that enable timely and secure access to high‑quality data for clinical studies in our Clinical Data Lakehouse, combining a solid understanding for the clinical data flow with excellent technical and conceptual skills.

Key Tasks & Responsibilities

• Lead the development and operation of reliable data pipelines to store, transform, share and analyze clinical data, enabling an efficient clinical dataflow in compliance to legal and regulatory requirements.
• Collaborate closely with relevant stakeholders in an agile setup to capture, specify and address data‑related requirements and dependencies to ensure a fit‑for‑purpose technical implementation in a healthy data ecosystem.
• Actively exchange with peers, embracing and applying best‑practices to maintain a coherent, consolidated and scalable data landscape.
• Contribute to the design and implementation of integration patterns, FAIR data principles and semantics to enable efficient, compliant, and secure data consumption by humans, systems, and AI agents within and beyond the primary data context.
• Collaborate with infrastructure experts to ensure a robust, efficient, secure and fit‑for‑purpose setup, leveraging infrastructure‑as‑code and composable architecture.
• Mentor less‑experienced collages and uphold high standards in requirements specification, engineering practices, code review, testing, and documentation
  

Qualifications and Competencies

• Bachelor’s degree in computer science, data science, information technology, or a related field.
• 5+ years of experience in data engineering, data operations, or a similar role, delivering production‑grade data pipelines and services
• Strong ownership of deliverables, high standards for code review and peer mentorship, and a commitment to clear documentation, metadata/lineage publishing, and sustainable data engineering standards and practices
• Proficiency with Databricks, including DBX Asset Bundles, Lakeflow Jobs, Unity Catalog, Access control and governance model and Databricks CLI
• Experience with API design patterns and Ability to integrate data from source systems using various interface patterns, such as OpenSharing/Delta Sharing, Iceberg‑Sharing, ODBC, GraphQL, OData, REST, or event streaming
• Proficiency in Python programming, especially PySpark and Kapitan
• Experience in Git, including Github Actions, CI/CD Pipelines (declarative YAML), Branching strategies, and trunk‑based development
• Understanding of data security principles and practices
• Strong analytical and communication skills
• Good communication and collaboration abilities to work independently in a self‑organized team
• High level of accuracy and attention to detail

Preferred

• Experience with GxP validation and Computerized Systems Validation
• Experience in Requirements Engineering
• Hands‑on experience with Infrastructure‑as‑code, ideally Terraform on AWS
• In‑depth knowledge of FAIR Data Principles, Linked Data principles, and Data Mesh architecture concepts, with demonstrated ability to apply them in practice
• Experience with semantic layer concepts in modern data platforms such as Databricks, Snowflake, or Microsoft Fabric
• Experience designing and implementing Model Context Protocol (MCP) servers
• Hands‑on experience with GraphRAG solution design and implementation
• Knowledge of data privacy regulations (e.g., GDPR, CCPA)
• Cloud engineering experience (e.g. AWS, Azure)
• Knowledge in the pharmaceutical domain (e.g. LOINC, SNOMED CT, omics, targets, assays, clinical studies, RWE, etc.)

YOUR APPLICATION

Bayer welcomes applications from all individuals, regardless of race, national origin, gender, age, physical characteristics, social origin, disability, union membership, religion, family status, pregnancy, sexual orientation, gender identity, gender expression or any unlawful criterion under applicable law. We are committed to treating all applicants fairly and avoiding discrimination.

Bayer is committed to providing access and reasonable accommodations in its application process for individuals with disabilities and encourages applicants with disabilities to request any needed accommodation(s) using the contact information below.

Bayer offers the possibility of working in a hybrid model. We know how important work‑life balance is, so our employees can work from home, from the office or combine both work environments. The possibilities of using the hybrid model are each time discussed with the manager.
Bayer respects and applies the Whistleblower Act in Poland.