Senior Backend Engineer - Scoring & Computation Engine (m/f/d)

The role

You will build a versioned, reproducible computation engine that transforms metrics into scores for hospital rankings. The role focuses on algorithmic computation, mathematical correctness, and system reproducibility.

What you will do

• Design and build the core scoring engine using a typed, versioned computation graph
• Model complex business logic as versioned, declarative data structures
• Own system lineage, versioning, and execution auditability
• Build typed services and contracts for internal tools and downstream applications
• Establish rigorous testing practices to prevent calculation drift
• Shape architecture and drive trade-offs between execution speed and cost
• Set code review standards and mentor joining engineers

Required qualifications

• Deep expertise in modeling and evaluating expression trees and dependency graphs
• Mastery of modern Python with strict typing, explicit testing discipline, and clean packaging practices
• Proven experience building auditable, reproducible systems using immutable execution records and versioned schemas
• Experience treating business logic as versioned data
• Demonstrated ability to design, version, and operate production backend contracts and schemas
• Bachelor's or Master's in Computer Science, Software Engineering, Applied Mathematics, or a related quantitative field
• 5+ years in backend software engineering building computation engines, rules platforms, or complex data-intensive backend systems
• Sustained period within one organization seeing a core system through build, launch, and iteration
• Strong analytical and mathematical mindset
• Fluent in English

Nice to have

• Production experience with FastAPI or similar async frameworks
• Experience with workflow tools such as Dagster, Prefect, or Airflow
• Practical experience analyzing execution memory footprints, CPU profiles, or query efficiency
• Familiarity with deploying, monitoring, and operating containerized calculation microservices on AWS
• Healthcare or benchmarking domain experience
• German is a plus

Benefits

• Work from abroad up to 30 calendar days a year
• Hybrid work and flex-time
• International team and social events
• Subsidized urban mobility
• Access to fitness and wellness options
• Free access to Langdock
• Career & training opportunities
• Attractive locations and modern offices
• Mental health support with OpenUp

About the company

Statista is a global business data platform that provides reliable data and analytics products. Founded in Hamburg in 2007, it has grown into a global company with offices in major cities.