- CI/CD automation (Jenkins): work with existing infrastructure, create new jobs, investigate/fix problems. - Deploy/Implement ARMS services (custom proprietary software, based on ECS, approach is similar to Kubernetes). - Write/improve/fix shell(bash) and python scripts servicing the infrastructure. - Handling tasks with SCM tools (chef, puppet). - Implement new infrastructure and decommission old services using terraform. - Day-to-day work with AWS services. - Work with monitoring systems (modifying system checks, solving alerts). - Quarterly updates and maintenance for the main services. - On-call shifts (*/4 weeks, 12/7). - Process documentation: write accurate and viable documents.

- Planned, designed and implemented xenserver clouds. - Designed, implemented and administered Zimbra collaboration stacks (single and cloud solutions). - Configured and administered openstack infrastructure. - Configured and administered OnApp infrastructure. - Administered Cisco border routers (BGP routing), Mikrotik devices. - Server software/hardware maintenance.

- Supervised IT department handling 10 technician personnel. - Administered Linux/Cisco infrastructure. - Administered Docsis network infrastructure. - Configured and supported billing system in telecommunication infrastructure. - Communicated with hardware/software vendors.