AWS DevOps Engineer

1/2023 – 4/2024

Constructing & Operating a Data Science Platform for the German Government in a highly secure Environment.
- High Security Kubernetes Bootstrapping: Kubespray
- Kubernetes Monitoring & Logging: Prometheus, Grafana, Loki, Elasticsearch
- Kubernetes Storage: Longhorn
- Data Lake: MinIO
- GitOps: FluxCD
- Authentication: Keycloak
- Infrastructure as Code (IaC): Flux, Ansible, Helm, Kustomize
- CI/CD: GitLab

Continuous Integration, Git, Kubernetes

11/2022 – 1/2023

- Supporting Volkswagen around AWS IAM and Cloud User Management in general
- Resolving several findings of an Internal Security Revision
- Analyzing the existing Environment and define Solutions with minimal effort

Amazon Web Services (AWS), Software Architecture, Sicherheit von Webanwendungen

7/2021 – 11/2022

- Greenfield Project: Architecting & Engineering AWS EKS & supporting AWS services
- Kubernetes: Helm, ArgoCD, AWS LB Controller, ExternalDNS, External Secrets, Consul, EFS CSI
- Kubernetes Monitoring & Logging: Prometheus, Grafana, Loki, Elastic Search
- Kubernetes Security: Cluster Hardening (Bottle Rocket)
- Setting up Kubernetes Authentication via OAuth2/OIDC (PingID) & AWS Cognito
- Migrating on-premise Workloads to AWS Serverless Stack: Lambda, API Gateway, Cognito, DynamoDB
- Setting up AWS Security: IAM, SSM, CloudTrail, Secret Manager
- Setting up & Maintaining Kubernetes-native Development (Skaffold)
- Infrastructure as Code (Terraform, Crossplane)
- CI/CD Pipelines with Azure DevOps & GitLab
- Linux Administration (Debian, Ubuntu, RHEL)
- Programming with Bash, Python & Go
- Data Engineering (AWS RDS: PostgreSQL, MS SQL)
- Infrastructure as Code (Terraform, Crossplane)

Amazon Web Services (AWS), Administration von Datenbanken, Continuous Integration, Kubernetes, Server Administration, Software Architecture, Web Entwicklung, Sicherheit von Webanwendungen

10/2020 – 6/2021

- Migration of on-premise E-Learning Platform to AWS ECS Cluster
- Infrastructure as Code (Terraform, Ansible)
- Setting up AWS Security: IAM, SSM, CloudTrail, Secrets Manager
- Setting up SAML & OIDC Authentication (AWS Cognito, Shibboleth)
- Working with Container-Tools: Docker, ECS
- CI/CD Pipelines with GitLab
- Linux Administration (Debian, Ubuntu)
- Scripting with Bash, Python, JavaScript & Go
- Data Engineering (AWS RDS: PostgreSQL, MS SQL)
- Configuration and Deployments of EC2 Autoscaling Groups and Launch Templates with Load Balancing

Amazon Web Services (AWS), Administration von Datenbanken, DevOps (allg.), Continuous Integration, Python, Server-Monitoring, Server Administration, Software Architecture

6/2020 – 11/2022

- Architecting AWS Cloud Frameworks
- CI/CD with BitBucket, GitLab, GitHub
- Linux Administration (Debian, Ubuntu, CentOS)
- Working with Kubernetes: AWS EKS, Helm, Crossplane, ArgoCD, Flux
- Kubernetes Monitoring & Logging: Prometheus, Grafana, Loki, Data Dog
- Consulting and Support for the DevOps Teams
- Building highly available and scalable Multi-Tier AWS infrastructure
- Building serverless infrastructure with AWS Lambda, API Gateway and DynamoDB
- Infrastructure as Code with Terraform & CloudFormation
- Configuration and deployments of EC2 autoscaling Groups and Launch Templates with load balancing
- Compliance monitoring and logging with AWS CloudWatch, AWS CloudTrail and AWS Config

Amazon Web Services (AWS), DevOps (allg.), Continuous Integration, Kubernetes, Python, Server-Monitoring, Server Administration

2/2019 – 5/2020

- Agile project coordination (e.g. Development of MS Dynamics NAV, Helpdesk-, Wiki-Software)
- Linux Server Administration (Debian, Ubuntu, CentOS)
- Educational Data Mining/Scraping with Python for Learning Analytics and Business Intelligence
-  Data Engineering (Python: Numpy, Pandas) and maintenance of databases (MySQL, PostgreSQL)
- Web development (HTML, CSS, JavaScript) and deployment
- Defined system standards and processes for provisioning and maintaining software on Linux
- Automating software delivery, CI/CD (start scripts, installation automation, etc.)
- Maintaining on-premise server infrastructure (Windows Server; Linux: Debian, Ubuntu, CentOS; VMWare)
- Project budget planning (e.g. ~105k € image database project, ~95k € ERP development)

Business Intelligence (BI), Administration von Datenbanken, Projektmanagement (IT), Python, Server Administration, Web Entwicklung

5/2015 – 2/2019

- Automating tasks with Python (e.g. conversion scripts for various media outputs)
- Sub-project management and assistance
- Fullstack web development (e.g. shop website, ticketing system)
- Maintaining on-premise server infrastructure (Windows Server, Linux)

Administration von Datenbanken, HTML5, Projektmanagement (IT), Python

1/2013 – 5/2015

- Maintenance of university data centre hard- and software
- Creating install-images for PC-Pools and maintaining hardware
- Network administration (Linux: Debian, Windows Server)
- 1st & 2nd level IT-Support for university students, lecturers and employees

1st Level Support / UHD, Administration von Datenbanken, Server Administration