Principal Software Engineer

6/2019 – 4/2023

Responsibilities:
• Own technical roadmap for Programmable Wireless billing and usage systems.
• Lead an effort to simplify and unify billing architecture across IoT products.
• Helped to design, develop and roll out Super SIM control plane services from scratch.
• Mentoring and coaching.

Amazon Web Services (AWS), Apache Spark, Java (allg.), Kafka, mySQL, Scala

2/2017 – 5/2019

• Built ETL pipelines for reviews analytics purposes e.g. reviews funnel analysis.
• Proposed and built YAML-based Infrastructure as Code solution for ETL pipelines. This allowed placing dozens of Community Shopping ETL pipelines under version control. It also ensured correct provisioning of the new pipelines in multiple marketplaces and regions.
• Took part in modernization of Reviews Solicitation Engine. Clarified the 1st phase of the re-design and coordinated new functionality rollout between teams in Berlin and Seattle.

Amazon Web Services (AWS), Apache Spark, Java (allg.), Python, Spring, SQL

6/2014 – 1/2017

• Helped to design, plan and develop a call center management solution.
• Worked on monitoring, performance, and stability of a loan-processing application.
• Provided code and design reviews for 3 backend teams.

Docker, Java (allg.), MongoDB, PostgreSQL, Scala