Ruslan Oprits

Building the next-gen infrastructure for the best user experience.

- Build and manage immutable cloud infrastructure (GCP, AWS) - Prepare service deployments and CD pipelines - Automation, monitoring, incident management Used technologies: Linux, GCP, AWS, Git, Jenkins, Docker, Bash, Python, Prometheus, Elasticsearch

Key responsibilities: - Develop and maintain cloud infrastructure - Build continuous integration pipeline (Jenkins, Vagrant) - Manage infrastructure-as-code (Terraform, Ansible) - Improve monitoring (Logstash, Elasticsearch, Kibana) Used technologies: Ubuntu, AWS, Terraform, Ansible, Git, Jenkins, Vagrant, Logstash, Elasticsearch, Kibana

* Help RVs to design, implement and roll out new technologies and services. * Capacity planning and optimization. * Ensure smooth operation of services. Key responsibilities: - Release (deploy & rollback) - Security updates and OS upgrades - Cross-DC migration of services - Design new graphs and alerts (Cacti, Nagios) - Automate everything with Puppet, Ansible and scripting - Develop documentation and troubleshooting guides for NOC Used technologies: Git, Puppet, Ansible, Cacti, Nagios

Development of new platform for a cloud telephony service. Key responsibilities: - Designing and implementing infrastructure - Research on software for VOIP - Patching and compiling software - Installing and configuring VOIP services - Testing and fixing bugs Used technologies: Kamailio, FreeSWITCH, Jenkins, PHP, SSH, DNS

Development of Android OS for TI OMAP platform, a member of Integration Team. Key responsibilities: - maintain build and release procedure daily - identify root cause for possible problems - create additional builds by demand - run automated sanity tests on daily builds - constantly improve build procedure Used technologies: Git, repo, Gerrit, Jenkins, GNU Make, Shell scripting, PHP

- Building and keeping up IT infrastructure - Remote Linux servers administration - Setting up LAMP environments for web projects - Fine-tuning for optimum CMS performance - Troubleshooting and scripting Used technologies: TCP/IP, DNS, SMTP, HTTP, RDBMS, Routing, Packet filtering, Xen, Subversion, GNU Make, Unix shell, PHP, MySQL, Apache, NGINX, Wowza Media Server

- Remote Linux servers administration - Data storage and Database management - Setup and configuration of web servers, load balancers, virtual environments and other services for Development Team and Production - Automated product deployment using GNU Make and set of scripts Used technologies: TCP/IP, DNS, SMTP, HTTP, RDBMS, Routing, Packet filtering, Xen virtualization, Jira, Confluence, Subversion, GNU Make, Unix shell

- Linux gateways, network and cross-office VPN management. - IT support for remote offices and company branches. - Server monitoring using Zabbix software. - Software installations, configuration and upgrades. - Spinning up SVN, Wiki, JIRA and other services for developers. - Web servers tuning, securing and troubleshooting - Projects, databases migration, domain parking - Purchasing network equipment, PC components and peripherals.

- Linux servers and network management, software installation and configuration, technical support for developers. - Research of existing technologies and solution discovery for use in the software been developed. - Implemented various solutions like WAP, SMS and MMS gateways, Jabber server, Red5 video streamer with FFmpeg coder, etc. - HR consulting, Linux specialists interviewing for hiring.

- Built from scratch a Samba server and a Linux gateway with multi-WAN symmetric and asymmetric routing, peering, billing, VPN and traffic shaping for 200+ clients - Management of Linux servers, Ethernet switches, SHDSL modems, DVB tuner and other network equipment - Network architecture design and IT consulting Used technologies: Ethernet, ARP, DHCP, TCP/IP, VPN, PPTP, DNS, WINS, SMTP, IMAP, HTTP, RDBMS, Routing, Packet filtering, QoS

- Linux gateway management (NAT, Proxy, Mail, DHCP, Samba) - LAN maintenance, redesign and upgrade (more than 300 users), cabling, network equipment installation - The whole LAN was moved across the building and upgraded. A new topology was designed and implemented to improve network performance - User support, consulting and technical writing - Designing LAN & Security corp. standard to comply with ISO 9001 - Web-site development