Skills
Intro
Hi, I'm Christian and the Co-Founder of Geek Cell GmbH, a software and infrastructure consulting company. I have been working in the technology industry for over 23 years now and have worked on the biggest platforms like werkenntwen.de or Chefkoch.de in Germany. I am an expert in the field of distributed and scaling infrastructures with AWS. I love to solve complex migrations and support developers with expert CI/CD pipelines in their daily work.
Programming Languages
PHP, Bash, Python
Development Tools
Ant, Bamboo, CircleCI, Confluence, CodeCommit, CodePipeline, Docker + Docker Compose, Git, GitHub, Gitlab, Jira, Make, Maven, Minikube, PHP Unit, Subversion, TravisCI, Mercurial, Vagrant
Operations Tools
Ansible, Chef, ELK, Molecule, New Relic, Nomad, Packer, Puppet, Sonar-Cloud, Status Cake, Stormforger, Terraform, Terragrunt, Vault
Infrastructures
Amazon Web Services (AWS), Digital Ocean, Bare Metal
Infrastructure Components
Apache, Elastic Search, Kubernetes, MongoDB, Memcache, MySQL (Percona Cluster, MariaDB, RDS, Aurora), Nginx, PHP, ProxySQL, RabbitMQ, Redis, Solr, Squid, Sphinx, Varnish
AWS Services
API Gateway, Autoscaling groups, Backup, Budgets. Cognito, Cloudfront, Cloudtrail, CodeCommit, CodeDeploy, CodePipeline, Control Tower, DynamoDB, EC2, ECR, ECS Margate, EFS, EKS, ElastiCache, ElasticSearch, Glacier, IAM, Image Builder, Kafka, KMS, Landing Zone, Lambda, Load Balancer, MemoryDB, RDS, Route53, S3, SES, Secrets Manager, SNS, SSM, Snowball, VPC, VPN, WAF, Well architected framework
Operating Systems
Linux (Ubuntu, Debian, Alpine), Windows, macOS
Best practices
Blue-Green Deployment, Clean Code, Clean Coder, Clean Architect, Coding Standards, Continuous Integration/Deployment/Delivery, Design Patterns, Domain-Driven-Design, DRY principle, Immutable Server, KISS principle, Phoenix Server, REST, SOLID principles, Static code analysis, Test-Driven-Development, YAGNI principle
Methodologies
Kanban, Mob programming, Pair programming, Planning Poker, Scrum, User-Stories, XP (Extreme Programming)