Senior Cloud Engineer

5/2022 – 10/2022

• Infrastructure as Code/Config: Terraform, Python, boto3
• Container: EKS, ECS
• Kubernetes: ExternalSecrets, Gatekeeper, Kubeclarity, Istio, ArgoCD
• Monitoring/Logging: Loki, Prometheus, Grafana, Elasticsearch
• Serverless: EventBridge, CloudWatch, Config Rules
• Security: SecurityHub, SCP, Certificates, CloudTrail, SSM, Secret Manager
• Linux administration
• CI/CD: Jenkins

Amazon Web Services (AWS)

9/2021 – 5/2022

• Infrastructure as Code: Terraform/Terragrunt
• CI/CD: GitLab, GitLab templates
• Serverless Infrastructure: API Gateway, Lambda, S3, SNS, SQS, DNS, Config Rules, Python
• Database: RDS, GoldenGate
• Monitoring/Logging: Tracing X-Ray, CloudWatch, CloudWatch Canary
• Security: IAM, SSM, Secrets Manager

Python, Amazon Web Services (AWS)

7/2021 – 9/2024

• Guide teams to adapt new AWS Technologies
• Support migration of Oracle databases to AWS RDS
• Prepare and execute Terraform workshop
• Deployment of AWS Lambda and AWS API Gateway PoC
• Help migrate service from EC2 to ECS in multi account environment

Amazon Web Services (AWS)

11/2020 – 5/2021

• Guide a migration of microservices to a new Kubernetes environment
• Design and setup of core services on a managed Kubernetes cluster
• Intensive communication and collaboration with the Kubernetes service provider
• Automate deployments with Ansible and Helm charts
• Conceptual design and setup of an authentication system between Kubernetes and LDAP via Dex
• Writing documentation for newly created concepts
• 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

Amazon Web Services (AWS), Kubernetes

4/2020 – 5/2021

• 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

Amazon Web Services (AWS)

4/2019 – 1/2020

• 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 draw.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 -Hyperlink entfernt-
• 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

Amazon Web Services (AWS), Docker, Git, Infrastrukturarchitektur, Python