(Senior) Data Engineer - Data Platform & Ontology (m/f/d)

Posted Yesterday
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2 Locations
Hybrid
Senior level
Information Technology • Marketing Tech • Database
Statista - Empowering People with data
The Role
Design, operate, and optimize scalable ELT pipelines and platform infrastructure for international healthcare data. Build entity-resolution and MDM workflows, implement schema governance and data contracts, optimize cloud storage and warehouse costs, and automate CI/CD for data pipelines while partnering with analytics and domain experts to deliver production-ready datasets.
Summary Generated by Built In

At Statista, we’re all about facts and data, for we are the world's leading business data platform. By providing reliable and easy-to-use data as well as various data analytics products and services, we empower people worldwide to make fact-based decisions.

Founded in Hamburg in 2007, we have quickly grown into a global company with offices in major cities such as London, New York, Berlin and Tokyo. And we still have a lot of plans. Our constant growth does not only prove our success, but also keeps creating new development and career opportunities for our employees.

We value and celebrate our diverse culture. You are welcome here for who you are, no matter where you come from, what you look like, or whether you prefer bar graphs to pie charts. Your story matters – keep writing it as part of our team.

Are you ready to join us?

About the Role

As the Senior Data Engineer on our Healthcare Platform, you will own the foundational data ingestion, entity-resolution, and platform infrastructure end-to-end. You will design and operate scalable batch/streaming data pipelines, harden platform orchestration, and ensure system reliability, security, and cost efficiency.

A central challenge of this role is building and operationalizing our unified healthcare data ontology—a consistent semantic model covering hospitals, departments, specialties, metrics, and classification standards. Working closely with Analytics Engineers, Data Scientists, and Methodology experts, you will turn heterogeneous, multi-country hospital data into a coherent, highly queryable data asset.

Key Responsibilities

  • Pipeline Infrastructure & Orchestration: Build, optimize, and operate reliable ELT pipelines (using Python, SQL, and Prefect/Airflow) to ingest data from heterogeneous international sources, APIs, databases, and lakehouse storage (S3, Apache Iceberg).

  • Healthcare Ontology & Entity Resolution: Drive the implementation of entity resolution and master data management (MDM) for international hospital entities, mapping raw source data to canonical structures and maintaining standardized vocabularies (e.g., ICD/OPS, specialty taxonomies).

  • Data Contracts & Schema Governance: Establish strict data contracts (Pydantic, dbt contracts) and schema management, ensuring dataset reproducibility, data lineage tracking, and automated validation across all platform pipelines.

  • Platform Efficiency & Cloud Infrastructure: Optimize data storage, query execution, and compute costs across AWS and Snowflake, keeping data assets performant, secure, and cost-effective.

  • Automation & CI/CD: Implement automated testing and deployment workflows for data pipelines using GitHub Actions and Infrastructure as Code (Terraform).

  • Cross-Functional Data Enablement: Partner directly with Analytics Engineers, Data Scientists, and domain experts to deliver documented, research-grade, and production-ready datasets.

Qualifications

Core Requirements (Must-Haves)

  • Data Ingestion & Pipeline Orchestration: Advanced Python and analytical SQL for complex data ingestion across diverse file formats, REST APIs, databases, and cloud lakes (S3/Iceberg). Hands-on experience with modern orchestrators (Prefect, Airflow, or Dagster).

  • Entity Resolution & Data Governance: Practical experience with entity resolution/record linkage frameworks (e.g., Splink, dedupe, recordlinkage) and schema management/data contracts (Pydantic, dbt contracts, or JSON Schema).

  • Cloud Platform & Warehouse Infrastructure: Deep hands-on experience in an AWS production environment (S3, ECS/EC2) combined with cloud data warehouses (Snowflake).

  • Automated CI/CD & Workflow Automation: Proven track record of automating data pipeline deployments, integration tests, and validation workflows via GitHub Actions.

Nice-to-Haves (What Will Make You Stand Out)

  • Knowledge Graphs & Healthcare Terminologies: Exposure to ontology/semantic frameworks (RDF/OWL, SKOS, Neo4j, LinkML) or international medical classifications/vocabularies (SNOMED CT, ICD/OPS, FHIR).

  • Metadata & Lineage Tooling: Experience operating metadata registries and lineage catalogs (e.g., OpenMetadata, DataHub, dbt docs).

  • Infrastructure as Code (IaC): Proficiency in using Terraform to declaratively manage cloud resources and environments.

Your Profile

  • Degree: Bachelor's or Master's in Computer Science, Data Science, Software Engineering, or a related quantitative field.

  • Experience: 5+ years in data engineering building production pipelines and data platforms; including a sustained period within one organization seeing a core platform or product through build → launch → iteration.

  • Domain Knowledge: Healthcare domain experience is a plus (basic understanding of healthcare KPIs, quality metrics, or benchmarking concepts; familiarity with hospital structures and medical classification systems like ICD/OPS is especially valuable).

  • Mindset: Strong analytical and systems mindset, with a proven ability to transform messy, heterogeneous international data into a clean, well-governed, and highly structured data asset.

  • Languages: Fluent in English, German is a plus.

  • Working Style: Highly structured, curious, detail-oriented, and motivated to collaborate closely with analytics engineers, data scientists, and methodology experts in an international environment.

What we offer

In addition to our great team, culture, and our shared goal of empowering people with data, there are many other things that make Statista a great place to work! Join us and benefit from:

  • Work from abroad up to 30 calendar days a year

  • Hybrid work and flex-time

  • International team and social events

  • Subsidized urban mobility and access to fitness and wellness options

  • Free access to Langdock and all its amazing functionalities

  • Career & training opportunities

  • Attractive locations and modern offices

  • Mental health support with OpenUp

Some of the benefits listed here apply only to the German entity and to Junior-level roles or above.

Skills Required

  • Advanced Python for data ingestion and pipeline development
  • Analytical SQL for complex data transformations and queries
  • Hands-on experience with orchestration tools (Prefect, Airflow, or Dagster)
  • Experience with entity resolution/record linkage frameworks (e.g., Splink, dedupe, recordlinkage)
  • Experience implementing schema management and data contracts (Pydantic, dbt contracts, JSON Schema)
  • Production AWS experience including S3 and compute (ECS/EC2)
  • Experience with cloud data warehouses, specifically Snowflake
  • Experience with lakehouse storage formats (Apache Iceberg) and ingesting from REST APIs and heterogeneous sources
  • Proven experience automating pipeline deployments and CI/CD with GitHub Actions
  • 5+ years of data engineering experience building production pipelines and platforms
  • Bachelor's or Master's degree in Computer Science, Data Science, Software Engineering, or related quantitative field
  • Fluent in English
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The Company
HQ: Hamburg
1,400 Employees
Year Founded: 2007

What We Do

Who We Are Statista believes that precise, accurate, and reliable data is the most important element needed for an organization to excel. We’re a rapidly growing international data-as-a-service organization with an IPO on the horizon. We leverage an easy-to-use online platform with a diverse and up-to-date collection of data, analytics, and information to give our partners access to an infinite number of business sectors, geographic areas, and consumers. Statista enables teams to learn from its data, assess market value, and make critical and well-informed business decisions based on truth, not opinions. Culture at Statista Founded 15 years ago in Hamburg, we have quickly developed into a global company. In our 13 office locations, we employ over 1,400 colleagues from more than 60 nationalities. In our international working environment, everyone is encouraged to contribute ideas to make Statista a special place to work. Our culture, framed by clear goals and a supporting team, paves the way for us to stay a profitable, leading player in the market. Why You Should Choose Statista · Our mission- helping companies make decisions with facts, not opinions · We put our people first forming a strong company culture grounded in our core ethics of community, integrity, communication, initiative, and accountability · Opportunities to grow and hone your sales expertise in a rapidly growing company · A diverse and international company with 13 locations worldwide, with our HQ in Hamburg,Germany · A beautiful office in NYC at 3 WTC, with the view of Hudson River, Freedom Tower, Empire State Building, Chrysler Building, and Hudson Yards · Medical, Dental, and Vision benefits · Flexible office hours/remote work as needed · Casual office attire, dog friendly, and a kitchen full of snacks and beverages

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