Toomas Vendelin

Active development of self-recovering systems.

Development and maintenance of cloud-based solution to manage tens of thousands of network devices used by Lancom customers. Responsible for developing, maintaining and refactoring "infrastructure as code" in an OpenStack-based cloud, while migrating parts of it to Kubernetes. Major tools involved are: Terraform, Ansible, FluxCD, Kubernetes, Jenkins, Graylog, Grafana, Prometheus. Personal focus at the moment is improving PostgreSQL cluster reliability and performance.

I work in DE-mail department, and therefore cannot go deep into details. Let's say, my command of automated OS installation (Autoyast/SuSE, Preseed/Debian, etc.) and system configuration provisioning by means of Puppet have been substantially improved while employed here.

As an IT manager for the Estonian branch of multinational company, responsible for smooth functioning of the entire local IT infrastructure: network (incl VoIP), servers (web, mail, monitoring, databases), end-user support, training management, etc.

Developing solutions for monitoring bank services – from ATMs to core databases – programming in Perl and using a variety of monitoring software like Zabbix server, HP OVO, etc.

Key IT-related responsibilities 1. Maintanance of: - web, mail, database and file/printing servers on UNIX machines; - local network with structured access hierarchy, involving both Windows and Mac OS X workstations. 2. Database (PostgreSQL) and application development (Perl), mainly for the retail branch of the company. 3. Security planning and monitoring. 4. Hardware purchasing and upgrading.