(Senior) Software Engineer Data Integration (all genders)

• 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.
• Design and improve the measurement integration framework to make adding new sources faster, more reliable, and more observable.
• Own the full integration lifecycle — from raw external data to normalized, mapped measurements, including custom transformations and ID mappings.
• Contribute to the existing ETL framework for importing and digitizing customer grid data from heterogeneous source formats.

You will directly contribute to the energy transition by building the data integration layer that brings real-time measurement data and grid asset information into the Intelligent Grid Platform, enabling smarter and more efficient grid management.

• 2+ years of relevant experience in backend development with a focus on data engineering, API integration, or event-driven systems.
• Degree in Computer Science, Data Science, Software Engineering, Electrical Engineering, Industrial Engineering, or a comparable field.
• Practical experience in Python programming and familiarity with common best practices.
• Experience with SQL databases (preferably PostgreSQL or TimescaleDB) in data modelling and query design.

• Fully remote work or hybrid in Cologne office
• 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
• Urban Sports Club cooperation
• Flexible monthly mobility budget (e.g., Jobrad, public transport)
• Time and resources for individual growth
• envelio pension plan
• Regular company and team events

envelio is on a mission to drive forward the energy transition. With a humble team of over 180 employees from 20+ nationalities, they develop the Intelligent Grid Platform to enable smarter grid management.