You build new measurement integrations end-to-end: connecting external IoT devices (via Kafka, MQTT, IEC104, REST, gRPC) through device registration and normalization to live data ingestion, transformation, and storage.
You design and improve the measurement integration framework to make adding new sources faster, more reliable, and more observable.
You own the full integration lifecycle — from raw external data to normalized, mapped measurements, including custom transformations and ID mappings.
You contribute to the existing ETL framework for importing and digitizing customer grid data from heterogeneous source formats.
You optimize existing components for performance, reliability, and transparency across batch and streaming workloads.
You have a continuous improvement mindset and actively look for ways to bring our code to industry best practices with confidence.

2+ years of relevant experience in backend development with a focus on data engineering, API integration, or event-driven systems
You have a degree in Computer Science, Data Science, Software Engineering, Electrical Engineering, Industrial Engineering, or a comparable field of study
You have practical experience in Python programming and are familiar with common best practices
You have experience with SQL databases, preferably PostgreSQL or TimescaleDB, in the area of data modelling and query design
You have experience integrating with external APIs or streaming systems (e.g. Kafka, MQTT, REST or gRPC)
Ideally, you are familiar with IoT or energy domain protocols (e.g. MQTT, IEC104) and have worked with real-time data pipelines
You are a team player and passionate about working with talented and inspiring people
You are looking for technical challenges and pride yourself in finding smart and simple solutions for complex problems
You are familiar with parts of our tech stack and are looking forward to keeping up with current industry best practices
You are business-fluent in English (Level C1).

Option for remote work from abroad (up to three months per year from anywhere in the EU or the USA)
State of the art technology and modern tech stack
Excellent hardware equipment (16-inch MacBooks, 2 screens at the office)
30 holidays + 3 corporate holidays
Support for your health through Urban Sports Club cooperation
Flexible use of a monthly mobility budget (e.g. Jobrad, public transport)
Time and resources for individual growth
envelio pension plan
Regular company and team events

Senior Software Engineer, Data Integration

Key skills