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Senior Full Stack Data Engineer

Köln, Nordrhein-Westfalen💼 Full-time🗓 2026-07-04 → 2026-08-10

Core

Architecting the semantic backbone and distributed pipelines for a platform that transforms operational data into impact models for resource management.

Role type

Senior IC data engineer (semantic modeling & distributed systems)

Builds

Distributed data pipelines, knowledge graph ontologies, and semantic data layers

Domain

Data engineering, semantic modeling, and operational analytics

Deliverable

production ML models | infrastructure

Required skills

Python, SQL, Apache Spark, Apache Flink, dbt, dlt, PostgreSQL, graph databases, cloud infrastructure (AWS/Cloudflare), Infrastructure-as-Code, LLM-driven workflows

Preferred skills

Experience in startups, portfolio of data architecture, modern data warehousing concepts

Technologies

dbt, dlt, Apache Spark, Apache Flink, Python, Scala, PostgreSQL, AWS, Cloudflare

Responsibilities

Architect complex data flow solutions with versioning and auditability; Design data layers using metadata and semantic graphs; Develop ontologies to translate domain logic into queryable models; Implement scalable processing pipelines for time/resource/cost data; Drive integration of LLM workflows for unstructured data transformation; Define standards for data integrity and quality; Partner with CTO and product team on data-driven opportunities

Seniority

Senior, hands-on IC

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