Senior System Engineer2013 - 2016Bonial International GmbH
Technologies: Amazon Web Services (AWS), Duplicity, Box Backup, Linux, OpenLDAP, Datadog, Gerrit, Jenkins, Boto, Fabric, Python, PostgreSQL, Apache Tomcat, JVM, Apache, Nginx, Icinga, Puppet, Terraform, Docker, Ganeti, Debian, Rackspace Cloud, AWS
- Introduced CI pipeline and style guide for Puppet development (tests, code reviews).
- Performed multiple upgrades of Puppet, from version 2 to 3 to 4.
- Grew the operations team, assisted HR in the hiring process, and onboarded new colleagues.
- Developed an internal tool to automate Terraform usage with multiple accounts.
- Consolidated manual procedures into automated ones using automation tools like Fabric (Python).
Senior System Engineer2011 - 2013Spreaker
Technologies: Sphinx Search Engine, MongoDB, Kibana, Elasticsearch, Logstash, StatsD, Carbon, Graphite, Redis, PostgreSQL, Libraries, Boto, Fabric, Automation, Python, Core, Zenoss, Sensu, RabbitMQ, Nginx, PHP-FPM, Vagrant, Puppet, Amazon Web Services (AWS), AWS
- Managed cloud infrastructure stability and scalability.
- Replaced Bash scripts with Puppet to manage the infrastructure.
- Deployed monitoring/visibility solutions like Graphite, Zenoss Core, statsd, and ELK.
- Supervised major upgrade of mid-sized PostgreSQL instances to leverage newly introduced streaming replication.
- Codified common tasks into automation tools like Fabric (Python).
System Engineer, Co-Founder2010 - 2013Devsum
Technologies: BackupPC, Iptables, Samba, OpenVPN, OpenSSH, Munin, Monit, Apache HTTP Server, Vtiger CRM, Puppet, FreeBSD, Linux
- Architected, designed, expanded, deployed, and monitored systems and networks infrastructures.
- Supported cloud solution architectural and management decisions.
- Selected and decided on technical strategies and new technologies to adopt and support sales/marketing decision making.
- Searched for new leads and developed new business relationships.
- Assisted clients in technological planning.
System Engineer2008 - 2010Studio Synthesis Srl
Technologies: PBX, Asterisk, Pentaho, BIND, Apache HTTP Server, Vtiger CRM, Iptables, Firewalls, TrueCrypt, Linux Servers, Windows Server
- Architected, designed, deployed, and monitored cloud infrastructures (both public and private) to run business intelligence services.
- Monitored and troubleshot local physical systems and networks.
- Monitored and managed on-site physical systems and networks for customers.
- Contributed to development of PHP modules for vTiger CRM open source software.
- Implemented and monitored backups.
Linux System Administrator2007 - 2008Informed Technology Pty Ltd
Technologies: BIND, Cyrus, Sendmail, Iptables, Bacula, Stunnel, RSync, OpenSSH, Apache, LDAP, Solaris, Linux
- Managed and monitored the overall behavior of the internal network.
- Managed different kinds of backups solutions.
- Performed services migrations between different OSes.
- Provided phone and email support for corporate customers.
- Troubleshot Linux servers issues on site (e.g. networking, firewalls misconfigurations).