Cloud infrastructure and security
- Architecture consultancy (mainly AWS)
- Cloud development (mainly AWS)
- Hybrid cloud on-premises connection strategies (design of low-latency, manageable VPN infrastructure)
- AAA solutions:
- Standard authentication solutions like windows authentication, federated authentication using industry standards like WS-Federation, SAML2P.
- Building API security with industry standards as there are: OpenID connect for authentication, OAuth2 for delegated authorization, ABAC, RBAC and XACML for fine-grained, session independent access control.
- Custom solutions because the one-fits-all approach is at times simply not possible.
- Integration into existing infrastructure (reverse proxy integration for example)
- …
- Coaching – enabling people and knowledge sharing.
Devops
- Openshift, strong operational knowledge and troubleshooting, upgrading knowledge (3.6 -> 3.7 -> 3.8 -> 3.9 -> 3.10 -> 3.11). Waiting for CoreOS Openshift 4 challenge.
- Docker based workflows like gitlab-jenkins-openshift based jobs.
- Monitoring with prometheus ecosystem (alertmanager, webhooks, grafana, exporters for various technology like AWS, Redis, RabbitMQ, Cassandra, Node Exporter, etc.)
- Elasticsearch stack, mainly for logging purposes, including filebeat, logstash, and other related tech like fluentd
- Gitlab CI, Jenkins using generic docker pipelines
- Strong platform agnostic mindset, i.e preventing lockin with cloud providers
- Firewall knowledge, experience with Pfsense appliances mainly for egress control, iptables configuration
- HAProxy on the job knowledge
- Kong on the job knowledge
- Custom AWS integrations with Openshift
- Terraform and Ansible (AWX) combo for maintainability
Backend development
- Backend development with best tools for the job mindset.
- C#
- Python
- R
- Elixir
- Haskell
- Backend development in cloud environment + DevOps. Experienced in deployment, maintenance, and building maintainable cloud strategies, for example using AWS cloudformation stacks, Terraform, blue/green deployment approaches, …