Full-Stack Engineer

1/2022 – 1/2023

Full upgrade of old monolith application to cloud-based service-oriented architecture using modern technologies (Golang, NextJS)
- Development of backend microservices with Golang
- Rollout and maintenance of multiple Kubernetes clusters for development and production environments (rke)
- Setup of automated secrets management & audit with Hashicorp Vault and K8S cert-manager integration
- Implementation of Continuous Integration and Delivery pipelines (CI/CD) (drone CI / Argo CD)
- Configuration and setup of Monitoring, Tracing, Logs (Prometheus, Jaeger, OpenTelemetry, Loki, Grafana)
- Data migration and configuration of backups (scripting with Python, TypeScript)
- Performance analysis & tuning, resulting in average page render times under 50ms (Jaeger tracing, go tool pprof)

Software engineering / -technik

5/2020 – offen

Unifying scattered infrastructure and applications under single white-label shops platform, increasing performance and customer satisfaction
- Rollout and maintenance of multiple Kubernetes clusters for development and production environments (k3d)
- Migration from Ruby on Rails monolith to multiple Golang services
- Data migration (TypeScript, MongoDB)
- Configuration of Continuous Integration and Continuous Delivery (DroneCI, ArgoCD)
- Defining and monitoring of key business metrics enabling early problems detection
- Implementing checkout subsystem with VR-Payment integration
- Developing Backoffice Admin Tools (Angular)

Software engineering / -technik

3/2020 – 4/2022

Consulting in migration and integration of existing internal software into AWS Cloud
- Leadership & knowledge transfer in Cloud technologies & Software architecture
- Migration of existing solution to microservice architecture (Golang, Java)
- Package all microservices as Docker images (building CI Pipelines with Jenkins)
- Deployment in AWS EKS
- Infrastructure management (Configuration as code using Terraform and ArgoCD)
- Development of backend services with Golang and Java

Software engineering / -technik