Kai Held
AWS DevOps Cloud Engineer
Experience
Oct 2023 - Present
1 year 5 monthsBackend Python Engineer
Rohde & Schwarz SIT
Conceptualizing & development of need-to-know domain-based identity and access management in a highly secure Environment.
- Backend development (Python): API & microservice development
Apr 2023 - Oct 2023
7 monthsSenior AWS DevOps Engineer
InformMe
Architecting & Developing GDPR compliant AWS Account Factory for MedTech Startup.
- Architecture: AWS Control Tower Setup, Service Catalog, CfCT Pipeline, Node.js-Lambdas
- Infrastructure as Code: AWS CDK (TypeScript), CloudFormation
- AWS Identity Center (SSO)
- Custom SCPs, Config Rules & SRA
- On-Prem Migration to ECS Fargate & Lambda
Jan 2022 - Present
2 years 2 monthsSite Reliability Engineer
Bundesdruckerei GmbH
Constructing & operating a data science platform in a highly secure environment.
- High Security Kubernetes Bootstrapping: Kubespray
- GitOps: FluxCD
- Monitoring/Logging: Prometheus, Grafana, Loki, Elasticsearch
- Storage: MinIO, Longhorn
- Authentication: Keycloak
- Infrastructure as Code (IaC): Ansible, Helm, Kustomize
- CI/CD with GitLab
Dec 2022 - Jan 2023
2 monthsSenior Cloud Architect (AWS)
Volkswagen AG (via Rackspace)
Supporting Volkswagen short-term around AWS IAM & resolving several findings of an internal revision; analyzing the existing Environment and define security solutions with minimal effort.
Jul 2021 - Nov 2022
1 year 5 monthsDevOps Engineer (AWS, Kubernetes)
Eurofins
Architecting & Engineering AWS EKS (Kubernetes) & supporting AWS Services in a Greenfield Project.
- Greenfield: Setting up & Maintaining EKS (Terraform, Crossplane)
- 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-prem 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)
Oct 2020 - Jun 2021
9 monthsAWS Cloud/DevOps Engineer
Siemens AG & Siemens Energy
Migration of on-premise B2B ELearning Platform to AWS ECS Cluster & general AWS Support for Siemens Energy Carve-Out.
- Infrastructure as Code (Terraform, Ansible)
- Setting up AWS Security: IAM, SSM, CloudTrail, Secret Manager
- Setting up SAML & OIDC Authentication
- 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
Jun 2020 - Dec 2022
2 years 7 monthsAWS Cloud/DevOps Engineer
ventx Gmbh
- Working on several DevOps Projects
- Architecting AWS Cloud Frameworks
- CI/CD with BitBucket, Gitlab, Jenkins and Jira
- Linux administration (Debian, Ubuntu, CentOS)
- Working with Container-Tools: Kubernetes, OpenShift, Docker
- Consulting and Support for the DevOps Teams
- Documentation of development
- Building highly available and scalable Multi-Tier AWS infrastructure
- Building serverless infrastructure with AWS Lambda, API Gateway and DynamoDB
- Infrastructure as Code with Terraform and CloudFormation
- Configuration and deployments of EC2 autoscaling Groups and Launch Templates with load balancing
Feb 2019 - May 2020
1 year 4 monthsSystem Engineer
Bamberger VerlagsGruppe
- Agile project coordination (e.g. Development of MS Dynamics NAV, Helpdesk-, Wiki-Software)
- 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 (Linux: Debian, Ubuntu, CentOS)
- Defined system standards and processes for provisioning and maintaining software on Linux
- Developed scripts for unattended installations (start scripts, installation automation, etc.)
- Maintaining on-premise server infrastructure (Windows; Linux: Debian, Ubuntu, CentOS; VMWare)
- Project budget planning (e.g. 105k € image database project, 95k € ERP development)
May 2015 - Feb 2019
3 years 10 monthsDevOps Engineer (working student)
C.C.Buchner Verlag
- Creating workflows to optimize processes
- Automating tasks with Python (e.g. conversion scripts for various media outputs)
- Sub-project management and assistance
- Front- and Backend web development (e.g. shop website, ticketing system)
- Maintaining on-premise server infrastructure (Windows, Linux)
Jan 2013 - May 2015
2 years 5 monthsSystem Administrator & IT-Supporter (student assistant)
Computing Centre University of Bamberg
- Maintenance of university data centre hard- and software
- Creating install-images for PCPools and maintaining hardware
- Network administration (Linux: Debian, Windows Server)
Summary
I help businesses automate their software development and deployment processes. I have experience with a wide range of DevOps tools and platforms, and I'm always keen to learn new technologies. I'm a strong believer in DevOps principles such as collaboration, automation, and continuous improvement.
Languages
German
Native
English
Advanced
Polish
Intermediate
French
Elementary
Education
Apr 2017 - Mar 2020
University of Erlangen-Nuremberg
Master of Arts · Analytical Philosophy · Germany · 1.2
Oct 2012 - Mar 2017