Senior Linux System Engineer

Work: NDA Env: GCP, Terraform, docker, gitlab-ci

Planned and realized cloud-based infrastructure. Creating and supporting cloud of AWS, based on Pulumi Python SDK. Creating CI/CD with Pulumi SDK

Work: NDA Env: Terraform, Alibaba alicloud, AWS, consul, nomad, vault, ansible, nginx, python, docker, jenkins.

Tasks Performed: - Services and infrastructure support - Routine operations automation - Development teams support - Automated verification and rotation of iDRAC passwords - Implemented monitoring of the current host configuration described by ansible using Gitlab CI/CD and specially designed display service - Revised the deployment scheme of LoadBalancers (Nginx Plus) consolidation - Developed configuration, deployment model, network configuration, a fault-tolerant circuit (based on BGP) - Built the process of developing, testing and applying configurations in a team - Unified configuration playbooks, complete isolation of internal service resources - Conducted a study of abnormally high traffic in the consul cluster (~ 10Gbit) - Gave recommendations on working with consul, which allowed to reduce traffic by 50 times - Developed and implemented technical and architectural solutions - Reviewed configuration code and working plans - Developed the architecture and detailed Chef implementation plan to manage the organization’s infrastructure - Supported DNS company platform over AWS Route53 - Developed storage with encrypted file about the platform's mirrors based on AWS S3 bucket for mobile clients - Integrated the platform’s tests based on AWS EC2 with automation based on Terraform - Deployed Chef Failover Cluster - Trained Chef Scripting Team Members - Wrote a style guide using Chef in the organization, built a development process and testing code and configurations - Developed, tested and drafted a plan for dividing LoadBalancers into logical and transport levels - Analyzed the applicability of existing solutions (LoadBalancers) Environment: AWS, Ubuntu Linux (16.04), MAAS, Servers Dell, Zabbix, InfluxDB, Grafana, Telegraf, Kapacitor, OpenLDAP, Gitlab, Artifactory, Bind9, PowerDNS (server, Recursor), Hashicorp Consul, Hashicorp Vault, LXC/LXD, Docker on Linux, Bareos, Nginx Plus, Bash, Python, Python environment in Linux, Ansible, Chef.

Tasks Performed: - Integrated all servers infrastructure to Chef Server (about 1k servers) - Automated all configuration of the infrastructure via Chef Server - Automated install/auto-upgrade NetAcuity DB via Chef applying mathematical decision making methods - Created custom cache-dns and reverse records from AWS Route53 - Developed a dynamic system configuration for keepalived for clusters of any sizes Environment: Chef automation, docker on Linux, Python, Python environment in Linux, Sanic, Grafana, Influxdb, Telegraf, Nagios, Collectd, Nginx / Nginx Plus, HAProxy, Consul, Centos 6/7, NetAcuity, Dynamical reconfiguration all infrastructure by Chef, AWS (Route53, S3 bucket), Galera Cluster for MySQL, ELK stack.

Tasks Performed: - Integrated Gitlab CI/CD processes - Automated the configuration of all the infrastructure - Configured all steps of development for the support team - Integrated aggregation of all logs to Graylog with Logstash/Fluentd - Developed an uninterruptible deploy process for production Environment: Sensu CE, Zabbix, Gitlab CI/CD, Redis, RabbitMQ, MongoDB, Statsd, Influxdb, Grafana, Node.js, Ansible, Fabric, Integration test, Mysql, Python, tinc, Graylog, fluentd, logstash, Python environment in Linux.

Position: - started: System Engineer - became: Backend Developer Node.js - became Frontend Developer AngularJS - finished FullStack Developer Node.js/AngularJS/NW.js Tasks Performed: - Modernized infrastructure - R&D new technologies for further integration - Development team support Environment: CentOS, Postgresql, customs SAN, Node.js, NW.js (Desktop), Socket.io, javascript, LDAP, dovecot, postfix, bash, Python, Python environment in Linux.

2013 - 2014 Project: ISP https://format-c.pro Position: Head of Department Tasks Performed: - Modernized infrastructure of the company - Created and organized backup all VMs - Migrated to ESXi - Created SAN based on hardware from HP - Integrated monitoring system: Zabbix - Integrated Macroscop system - Integrated OTRS system - Integrated PXE load system - Development and integrated Digital Super Hybrid Telephone Systems based on Asterisk, 22 analog lines, E1 links, about 100 end-of-user - Got the license of the ISP communication center - Supported 6km optical track 2012-2013 Project: ISP https://format-c.pro Position: Head of Information Technology Services Tasks performed: - Development automation private cloud's (CloudStack, OpenNebula, OpenStack) such as IaaS, Saas, Paas; - Created fault tolerance private cloud - Supported development team 2011-2012 Project: ISP https://format-c.pro Position: Lead System Administrator Tasks performed: - Created an infrastructure of the company - Integrated Proxmox - Integrated of the Parallel Plesk Panel - Development integration private cloud (CloudStack/OpenNebula/OpenStack) based on BladeSystem Environment HW: HP BladeSystem c7000, HP DL Prolliant 360, HP MSA70 [25sas], Cisco, Dlink, Siemens, Lucent Wavestar SDH, Mikrotik Environment soft: CentOS, Parallel Plesk Panel, PHP, MySQL, PostgreSQL, bash, VoIP, SIP, python