Curriculum Vitae

DevOps Engineer at myToys from 05/22 to 10/22

Deploying Terragrunt organization wide to all accounts managed by AWS LandingZone
Automate deployments spanning multiple accounts with Jenkins
Improvement and extension of existing AWS LandingZone with Python and boto3
Development of internally used Kubernetes module containing Services such as Istio, Kubeclarity, ExternalSecrets and Gatekeeper
Improving and enforcing security and compliance through ConfigRules, Service Control Policies (SCP) and SecurityHub
Evaluate use of AWS ControlTower instead of LandingZone

Keywords: Terraform, Python, Kubernetes, AWS LandingZone, ConfigRules,

Serverless DevOps Engineer at Telefonica from 09/21 to 05/22

Deploying Terragrunt/Terraform through GitLab Pipelines
Analyze logs and metrics with CloudWatch and present results in architecture forum
Maintain and deploy Serverless infrastructure (Lambda, RDS, API Gateway, S3, X-Ray, SNS, SQS, DNS, IAM)
Create GitLab templates for NodeJS and Java Application deployments
Implementation of ConfigRules with python and boto3
Maintaining Oracle GoldenGate on EC2 for critical data replication

DevOps Coach at RWE from 06/21 to 09/21

Kubernetes DevOps Engineer at STP from 11/20 to 05/21

Creating foundation for and assisting during migration of services to new Kubernetes environments
Design and setup of core services on a manged Kubernetes cluster
Deployment of services to multistage Kubernetes clusters
Intensive communication and collaboration with Kubernetes service provider
Automate deployments with Ansible and Helmcharts
Conceptual design and setup of an authentication system between Kubernetes cluster and LDAP via Dex
Writing documentation for newly created concepts
Setup and update on-prem environments with Kubeadm
Managing selfhosted MongoDB inside of Kubernetes
Backup and restore of MongoDB
Improve observability with Prometheus and Grafana
Preparing on-prem Kubernetes cluster for ISO Certification 27001
Automating deployments to Kubernetes with ArgoCD

DevOps Engineer at MunichRe from 03/20 to 05/21

Kubernetes: self-managed with kops (AWS) and AWS EKS
Automated deployment with Bitbucket pipelines and ArgoCD
Create deployments with Helm Charts
Migration of Kubernetes Cluster to managed AWS EKS
Providing and maintaining MongoDB solution for development teams
Troubleshoot errors in MongoDB
Development of Infrastructure as Code with Terraform
Supporting developer teams (CI/CD pipelines, reviewing IaC code, debugging dev and prod services)
Build infrastructure based on AWS Services: SQS, SNS, EKS, IAM, IRSA, EC2, Loadbalancing (ALB/NLB), SSM, Route53, RDS (Aurora), Config, Lambda, ACM
Close cooperation with backend development team
Gathering metrics with Prometheus and storing them with Thanos
Evaluating Jaeger for tracing inside the Kubernetes Cluster
Maintain DNS and automate with ExternalDNS in Route53

Site reliability engineer at Joyn from 04/19 to 01/20

Infrastructure as Code/Everything as Code using CloudFormation and Terraform
Managing ECS Fargate based microservice infrastructure
Configure and Maintain Docker images
Working as a member an agile DevOps/SRE team / SCRUM
Take care of DNS entries and networking
Documentation of Infrastructure (technical documentation of deployed stacks/environments. Creating drow.io diagrams)
Used AWS Services: ECS/Fargate, ECR, CloudWatch, DynamoDB, Redis, Route53, ACM, WAF&Shield, CloudFront, S3, Lambda, API Gateway, IAM, SSM
Monitoring and alerting with Grafana, Prometheus, OpsGenie and Dynatrace
Configuration and maintenance of end-user facing CloudFront CDN, reverse proxy based on nginx and Server Side Rendering (SSR) for www.joyn.de
Logging with CloudWatch, logstash, ElasticSearch, Kibana (ELK)
On-call service for live-tv and video streaming platform used by over 2 million unique users
Live deployments to production without downtime