Senior Data & Backend Software Engineer (f/m/d)

The role

You will design, develop, and operate systems that ingest, process, store, and serve data at scale. You will build scalable solutions for the engineering and operation platform to enable data-driven decision-making.

What you will do

• Build modern, scalable, and high-performance solutions for the engineering and operation platform.
• Define data ingestion, processing, storage, and access patterns.
• Develop data services, APIs, pipelines, and data products.
• Design and implement robust ETL/ELT processes.
• Contribute to data architecture, modeling, and storage decisions.
• Ensure data quality and integrity through validation and monitoring.
• Provide observability and monitoring of platform components.
• Author and maintain architectural documentation and technical specifications.
• Collaborate with cross-functional teams.
• Guide less experienced engineers by sharing knowledge and promoting best practices.

Required qualifications

• At least 6 years of hands-on experience in one of the following languages: C#, Java, Rust, Python.
• A degree in software engineering, computer science, data science or similar.
• Strong experience with batch and streaming data processing.
• Good understanding of time-series data concepts, including sampling rates, decimation, signal integrity, and frequency-domain analysis.
• Practical experience in optimizing and efficient implementation of native data processing and DataFrame-based processing.
• Excellent skills in querying, transforming, and optimizing large-scale datasets.
• Solid understanding of modern data architectures, including Lakehouse, Data Warehouse, and Medallion Architecture patterns.
• Hands-on experience with analytical storage technologies such as Delta Lake and Apache Iceberg.
• Experience with Apache Kafka and event-driven architectures.
• Experience with modern data platforms such as Microsoft Fabric, Azure Data Factory, Databricks, or Snowflake.
• Strong understanding of software engineering principles, including maintainability, testing, and automation.
• Understanding of cloud infrastructure, networking concepts, and platform operations.

Nice to have

• Experience working with large-scale engineering, manufacturing, or telemetry datasets.
• Familiarity with DevOps practices, CI/CD pipelines, and Infrastructure as Code (IaC).
• Experience with stream processing frameworks like Apache Flink

Benefits

• Employee Participation Program: virtual company share program
• 30 days of vacation
• Company pension plan with 20% employer contribution after the probation period
• Subsidised lunch
• Fully financed Deutschlandticket
• Rental clothing with laundry service
• Sponsored sports club memberships (EGYM Wellpass)
• Individual learning budget granted after the probation period
• Childcare allowance for non-school-age children

Before you apply

• Due to security clearance requirements, affiliations with countries listed under § 13 para. 1 no. 17 SÜG may affect the application process.

About the company

Isar Aerospace is building a modern space business to enable faster, better and cheaper access to space. The company provides sustainable and environmentally friendly launch solutions for small and medium-sized satellites and constellations into Low Earth Orbit.