Entrepreneur in IT spheres : dev + support

Examples:

- LAW company Pravogarant (completed): I created 4 year ago CRM system with my team for Pravogarant. My team was from 4 person. Now this CRM in production Stack in crm: MySQL as engine for database,angular for backend, Java In Java used: Hibernate, json ( org.json.simple.*), ExecutorServices, Singletone, xdocreport for providing orders from templates Main target of this crm was: created tasks, to put comments, more than > 5 type tasks was, separately tasks was tasks of judge practices and providing accounting the orders. Analytics per month in reports every month My roles in this project: responsibility for deadline and work all project,communication with customer

- had had experiences in selenium (based on java)- Supported 2 ISP personally Was main NOC on ISP Zaporozhye, built network, monitoring , supported asterisk and security inside network,supported AS (2 /24 routed to Cisco). Provided courses for employees about learn devices mikrotik for quick tuning, buildig radio network based on mimoza radio device, adding new transport channel, building new L2 transport for customer,virtualization citrix xen center, kvm linux (qemu)work with xml: created utilities that working with config files (xml) on the GSM devices (based on the Java)

and other projects in networking and dev

Responsibilities: level 3 support, support Linux servers as administrator (Cloud Linux), installing procedure of new servers, working with firewalls (iptables ,csf. ufw), working with monitoring (Zabbix, Grafana), working with ticket system, using salt for install templates, trouble shutting, migration procedure between data centersOnly shared hosting support, mail team and backup are dedicated divisions in currently positionStack: nginx, apache, mysql, salt, firewalls,bind, Proxmox Virtualization, Virtuozo Virtualization,salt,Vmware,git

Responsibilities:PowerDNS tuning, support Linux server, support Asterisk servers as internal role and customers support, management of documentation with connectivity optical information, creating commercial projects for customer relative to integration VOIP in commercial structure Stack: Ubuntu Linux, Debian Linux, Proxmox Virtualization,Mikrotik,Dlink,Cisco Dev tools: Jenkins, python main cause of interrupt work agreement: low salary, increment salary was absent, I didn’t have free time in my weekdays – assigned to customers calls all my time

main cause of interrupt work agreement: has decreased salary, in begin of war in 2014 from all personal take off all allowances

Responsibilities: working with backend for commercial banking products Stack: Hibernate, mysql, json

Responsibilities:building web clusters of web servers for serve customers , monitoring , security roles and divide privileges, authorization in LDAP (openldap) Stack – FreeBSD, Carp, Nginx, Apache, ipfw, mysql master slave replication, ms sql Dev tools: bash team consist of: myself and 2 persons main cause of interrupt work agreement: after successful deal relate with purchase Industrial Group many teams was reduced

Responsibilities:supporting employees, support web mail server, support vpn connection between offices, security officer in security team Stack – FreeBSD, Exim, Nginx, Apache, ipfw, mysql team consist of: myself and 3 security officers main cause of interrupt work agreement: very hard work, transformation from happy life to scare, many works without additional pay in homes of boss, has begin problem with health with heart

Responsibilities:supporting employees, support web mail server, support vpn connection between offices, security officer in security team Stack – FreeBSD, Exim, Nginx, Apache, ipfw, mysql team consist of: myself and 3 security officers main cause of interrupt work agreement: very hard work, transformation from happy life to scare, many works without additional pay in homes of boss, has begin problem with health with heart