Ivan N.

I can maintain, improve, troubleshoot your web servers, services or whole IT infrastructure.I do any tasks related to Virtualization, Linux system administration, Web-servers administration, because I’m a results-driven system administrator with over 7 years of experience in managing security, optimization, monitoring and overall maintenance of 350+ bare-metal and virtual *nix servers of varying distribution and their common services (Nginx, Apache, Squid, PostgreSQL, MySQL, NoSQL, Postfix, Dovecot, Exim, Zabbix, Nagios etc.). Also, with an experience in software development on several programming languages, I have superior technical competence for deep understanding any emerging problems and questions. My strengths are heavily focused in deployment, maintaining, optimization and automatization highload cloud environment. Specializations & skills: • Virtualization: XEN, KVM, oVirt, VMWare ESXi, VMware Horizon View; • Cloud hosting: Amazon, Google Cloud Platform, OVH, Hetzner, Digital Ocean; • Operation systems: Linux (Gentoo, CentOS, RHEL, Debian/Ubuntu etc.), FreeBSD; • Web-servers: Apache, Nginx, Lighttpd, Tomcat, and with ISPmanager; • Amazon WebServices: Cost Optimization, EC2, ELB, S3, Cloudfront, Route53, RDS, WorkMail, Amazon SES, Lambda; • Databases: MySQL, PostgreSQL, MS SQL, various NoSQL; • HA: HAProxy, Pacemaker & Corosync; • CI/CD tools: Jenkins, TeamCity, Gitlab, Gitlab CI; • Code deploy: Capistrano, Jenkins, Git, SVN; • SCM: Puppet, Ansible; • Monitor tools: Zabbix, Nagios, Graphite, Graphana, New Relic, InfluxDB, Collect, Kibana, Sensu, Kapacitor, Telegraph, Prometheus monitoring, Carbon; • Caching: Redis, Memcache, Varnish, Squid; • Mailservers: Postfix, Exim, Dovecot, Sendmail; • Search engine: ElasticSearch, Apache Solr; • Bugtracking: Atlassian JIRA; • Message broker: Kafka, RabbitMQ; • Log management: Graylog; • Backup copy systems: Bacula, Veeam, Bareos; • Programming Language: C/C++, Java, Php; • Scripting: Bash, sh, perl; • VoIP: Asterisk, FreePBX; I'd use this experience to help you out. Tell me what do you want - and I will make you don’t think about how it works.