Resume

Software Development Engineer at Amazon, Berlin — building cloud-native microservices on AWS at scale. Focused on distributed systems, high availability, and operational excellence. M.Sc. in High Integrity Systems from Frankfurt UAS, with prior experience in real-time systems research (DLR) and enterprise software (NTT Data).

Experience

Amazon - Software Development Engineer

- Present

Owning design, delivery, and operation of backend services on Amazon's retail platform — from zero-to-one system builds to cross-org incident resolution.
  • Architected a unified notification platform from scratch (AWS Step Functions), consolidating two legacy services — reduced new notification type onboarding from 1 month to 1 week.
  • Root-caused recurring Sev-2 incidents (4 months, 23+ incidents) in distributed stream processing, then migrated to event-driven serverless architecture — zero incidents post-migration.
  • Diagnosed an org-wide caching race condition causing 9,000+ errors/hour — fixed in one day, improved availability from 97.45% to 99.999% across all regions.
  • Reduced a cross-region compliance migration outage window from 6 hours to 15 minutes by designing a pre-staged deployment strategy across 3 teams in 3 time zones.
  • Discovered years of silent message loss through unmonitored dead-letter queues during a service migration — triggered a team-wide observability audit.
  • Investigated a 50% metric drop, traced through the full analytics pipeline to identify bot accounts generating 87% of traffic — proved no customer regression, delivered permanent fix.

German Aerospace Center (DLR) - Master Thesis Researcher

-

Research on response time analysis of real-time task chains for satellite software at DLR's Institute for Software Technology.
  • Developed a novel execution model for response time analysis of DAG tasks on multi-core processors with fixed-priority scheduling.
  • Implemented the framework in Python, validated against satellite system task models — published at DLR elib.
  • Extended prior research from periodic/FCFS to sporadic tasks with priority-based execution, reducing analytical pessimism.

Amazon - SDE Intern

-

End-to-end feature delivery on Amazon Retail Mobile — design, implementation, worldwide rollout, and post-launch monitoring.
  • Designed and shipped a customer review images feature (Java, Spring, Angular) deployed worldwide — 78% increase in image views, validated via A/B testing.
  • Monitored post-release metrics (CPU, memory, latency) via CloudWatch; full project lifecycle in one internship.

Software AG - Working Student — R&D

-

Built internal tooling and optimized production services at a global enterprise software company (€800M+ revenue).
  • Optimized RESTful services (Java) to automate error handling, reducing production errors by 30%.
  • Designed and shipped a university relations platform using Spring Boot, Angular, and Keycloak.

NTT Data FA Insurance Systems - Software Engineer

-

Delivered enterprise insurance applications serving 5,000+ agents across multiple clients in the APAC region.
  • Built and delivered web applications using RESTful services, Spring, Java, and MySQL for 3 enterprise clients.
  • Designed a Round Robin workload delegation system used by 5,000+ insurance agents.
  • Automated WebLogic deployment via Java/WLST scripting — reduced deployment times by 90%.

Education

Skills

Backend
JavaSpring / Spring BootMicroservicesRESTful APIsNode.js
Cloud & Infrastructure
AWS (CDK, Lambda, DynamoDB, SQS, CloudWatch)DockerCI/CD PipelinesInfrastructure as CodeHigh Availability & ScalabilityObservability & MonitoringDynamoDBKubernetes
Data & Research
PythonReal-Time Systems
Databases
SQLDynamoDBMySQLPostgreSQL
Languages
JavaPythonTypeScriptJavaScriptSQLC
System Design
MicroservicesDistributed SystemsHigh Availability & ScalabilityObservability & MonitoringReal-Time Systems
Web Development
RESTful APIsTypeScriptJavaScriptNode.jsReactAngularNext.js

References available upon request. Get in touch →