Senior Python Developer with Java skills

For our client we are looking for a Senior Software Developer, Python (80%) / Java (20%)

Key Data:
Start: 26.10.2026
End: 30.10.2027
Utilisation: fulltime / 40hrs per week
Language: English

Project:
The work covers further development of Wide-Area Monitoring Applications (Advanced Monitoring, Load Frequency Control, Power Quality), analysis and adaptation of open-source modules, and development of new modules

Skills (must-have):
at least 5 years of experience developing IT solutions in line with client IT strategy and standards, including:
Python application development with FastAPI, Kafka and Helm Charts
Java application development with Spring Boot, JDK 21+ and Maven
experience with agile methodologies (Scrum, Kanban, etc.)

Should-have:
Kubernetes, Argo CD, Protobuf, Pydantic, Grafana
electrical engineering background
experience with transmission system operators or comparable energy infrastructure companies
knowledge of SCADA, PMU, PQ, protection or fault record data
experience in critical infrastructure
strong technical documentation skills