Daniel Weber
Senior Software Engineer · Backend · Cloud · Distributed Systems
Senior Software Engineer with 8 years of experience designing and running high-traffic backend systems in Java, Kotlin and Go. Led the migration of a monolithic payments platform to event-driven microservices on AWS, cutting deployment time from days to minutes. Comfortable owning services end to end, from architecture and code reviews to on-call and cost optimisation.
Employment
Senior Software Engineer
Kestrel Payments GmbH, Munich
Mar 2021 – Present
- Led a team of 5 engineers migrating a monolithic payments core to event-driven microservices (Kotlin, Kafka), reducing release lead time from 4 days to 30 minutes.
- Designed an idempotent transaction ledger processing 2.5M payments per day with 99.98% availability.
- Cut AWS infrastructure costs by 31% through right-sizing, Graviton instances and smarter autoscaling.
- Introduced contract testing and trunk-based development, lowering production incidents by 40% year over year.
Tools: Kotlin, Java 21, Spring Boot, Kafka, PostgreSQL, Redis, AWS (EKS, RDS, SQS), Terraform, GitHub Actions
Software Engineer
Brightline Mobility AG, Stuttgart
Aug 2017 – Feb 2021
- Built REST and gRPC services for a fleet-management platform used by 300+ corporate customers.
- Implemented real-time vehicle telemetry ingestion in Go, handling 40,000 events per second.
Tools: Go, Java, gRPC, MongoDB, Docker, Kubernetes, Prometheus, Grafana
Education
M.Sc. Computer Science
2015 – 2017
Technical University of Munich, Germany
Focus on distributed systems and databases. Thesis: "Consistency Trade-offs in Geo-Replicated Event Stores" (grade 1.3).
B.Sc. Computer Science
2012 – 2015
University of Stuttgart, Germany
Certifications & Training
AWS Certified Solutions Architect – Professional
2023
Amazon Web Services
Certified Kubernetes Application Developer (CKAD)
2022
The Linux Foundation
Skills
Languages
Kotlin, Java, Go, TypeScript, SQL
Architecture
Microservices, Event-Driven Design, DDD, REST, gRPC
Cloud & DevOps
AWS, Kubernetes, Docker, Terraform, CI/CD, Observability
Data
PostgreSQL, Kafka, Redis, MongoDB
Languages
German — Native
English — C1