Extensive knowledge in Linux/Unix Systems Administration
Extensive knowledge in email systems
Infrastructure as Code enthusiast
Systems and application monitoring / performance
Automation / Provisioning
Strong shell scripting skills
Basic programming skills
Webdev technologies
Troubleshooting: fixing impossible issues
Soft skills / character:
Team Leader focused on the Team
Knowledge sharing - internal trainer
Openminded
Patient
Positive attitude
Team player
Analytical and decision making skills
Cheerful
Currently interested and trying to be better in:
DevOps
Cloud
Continous Integration/Continious Delivery
Containers and orchiestration
Work Experience
External contractor in internal project for Intel Technology Poland .Totally independent position, over 30 bare metal servers, more than a 1000 hosted systems. Project goal was to deliver a full Software Delivery pipeline along with tools to support Software building. We supported over 3000 developers in different global locations and timezones. We provided them a full solution to deliver a software in a modern way with best moder DevOps approach - Git server cluster merged with Code Review tools and CI/CD platform. Also we were responsible for the whole Infrastructure and many other supporting systems and extendind the environemt for the specified customers needs.
Main infrastructure stack:
Hypervisors - VMware
Infrastructure as Code / Coniguration Management - Salt / Ansible
Monitoring - Zabbix / Prometheus / Grafana / ELK
CI/CD - QuickBuild / Gitlab
Containers - Docker
Orchiestration - Kubernetes
SVC - Git
Scripts - Bash / Python / YAML / Jinja2
Key achievements:
- Builded up a team of a passionate professionals (There where 2 of us when, I've joinend - now it's 7 team members)
- Significantly reduced a technological debt
- Automated most hard and common tasks
- Extended the Team skills by various internal trainings
- Reshaped the technlogoical stack and mindset of our team and customers to bring new solutions
- Better quality and performance of delivered resources (code reviews/automation)
Key projects:
- Rebirth project - redesign whole infrastructure stack and delivery proccess
- Rewrite every core component into Infrastructure as Code tool
- Increased quality and performance of whole delivery pipeline
Totally independent position, 24/7 on call standby. Over 50 physicall servers, more than 200 containers, mostly for www hosting and development. I've inherit whole infrastracture which wasn't in a very good shape, it took some time to bring the best solutions to provide stability and security for our customers.
Main infrastructure stack - Debian, Proxmox, OpenVZ, Ansible, Zabbix, Postfix, Qmail, Nginx, Apache, AOLserver, MySQl/MariaDB, Percona, PostgreSQL
- Provided technical expertise for IT infrastructure,
implementation, optimization and upgrade.
- Performed troubleshooting and diagnosis to hardware/software
infrastructure failures, and provided solutions
- Security
- Provisioning
- Automation
- Migration some apps into the cloud
- Colaboration and support for developers team
- Technical support
Strongly independent position. Over 200 physicall servers, more than 500 containers, mostly for advanced email services and internal support systems of Poczta WP.
Poczta WP - free email services - 11 million active users
Main infrastructure stack - Solaris, OpenSolaris, CentOS, Zabbix, Qmail
- Administration and maintenance of systems and services
- Development and maintenance of Poczta WP email services
- Development and maintenance of Antispam systems
- Development and maintenance of internal support tools
- Development and maintenance of monitoring system / tools
- Automation
- Cooperation and support for developers team
- Technical support for customer care team
- Preparing and performing training sessions for other teams, including non technical staff ( explaning strict IT stuff in human language )
Technical support for users and customer care team:
- email services
- hosting / domains
- cooperation with developers and administartors teams
- developing internal support tools
- Linux / Unix Systems Administration
- Web / email hosting
- WebDev