Looking for a job

Δημήτρης Χαϊδάρης

@0007402

Message

IT Systems Engineer / DevOps at noris MIKE, automating infrastructure with Ansible, Kubernetes, and OpenShift.

Greece

Message

At noris MIKE, I work as an IT Systems Engineer / DevOps, managing infrastructure and automation with Ansible, Kustomize, and Terraform. I also work with Kubernetes and OpenShift.

I implement monitoring with Prometheus, Alertmanager, and Grafana, and use GitLab CI and argoCD for CI/CD. My work includes secret management with HashiCorp Vault and security scanning with Trivy.

As a freelancer, I worked with hosting panels, webservers, email systems, and databases. Earlier, at Lancom Ltd., I administered Linux and Windows systems in a datacenter and wrote small programs in Bash, PHP, MySQL, Perl, and JavaScript.

Experience

Work history, roles, and key accomplishments

Current

IT SYSTEMS ENGINEER / DEVOPS

Current

noris MIKE

Jan 2020 - Present (6 years 9 months)

Technologies:
Infrastructure: Openstack, VMware
IT Automation: Ansible, Puppet, Kustomize, Helm, Terraform
Centralized secret management: Hashicorp Vault
Database Administration: MySQL
Containerization: Docker
Orchestration: Openshift OCP/OKD, Kubernetes
Monitoring: Icinga, Nagios, Prometheus, Alertmanager, Grafana
CI/CD: GoCD, Gitlab CI, argoCD
Security scan: Trivy

Professional Freelancer

Freelance

Feb 2019 - Jan 2020 (11 months)

Examples of technologies and systems that I have worked with:
Web Hosting Management Panels: cPanel, Plesk, Webmin, Virtualmin, DirectAdmin, VestaCP, zPanel
Webservers: nginx, apache
Email Marketing: Postfix, Dovecot, Mailwizz, Mautic
Databases: MySQL/Mariadb, DB2
Scripting Language: Bash
Cloud Hypervisors: VMware ESXi, KVM, OpenVZ
Log Analysis: Kibana, graylog
Internet Radio: Icecast
Various Tech

Military Service

Greek Army

May 2018 - Feb 2019 (9 months)

During my military service I was part of the "Research and Informatics Office".
My duties included user administration, system monitoring, upgrades and secretarial support.
Also I did some script development and promoted the IT automation.

Professional Freelancer

Freelance

Oct 2014 - May 2018 (3 years 7 months)

System Administrator

Lancom Ltd

Oct 2013 - Oct 2014 (1 year)

I worked as a linux/windows systems administrator in lancom Datacenter. My responsibilities included:
First line of support by ticket or phone.
Administration of Linux and Windows systems.
Hardware oversight (servers, network and storage equipment).
Involved with VMware, KVM, openVZ.
Write mini programs in linux Bash, php, mysql, perl, javascript.