Position: DevOps
Company: Brainstack_
Category: PHP
Experience required: 3y
English level: intermediate

Responsibilities:
— Maintain highly available Kubernetes cluster on bare metal
— Ensure high uptime (99.995%+) and response time for Kubenetes cluster and production environment
— Implement configuration management for new and existed services by using industry best practices and tools
— Provide release and application support for developers and QA
— Ensure accessibility, integration, performance and security for all tools used in the product life cycle
— Provide day-to-day operational support of mission-critical systems and services
— Root Cause Analysing for all production outages
— Improve monitoring and alerting systems

Requirements:
— Proven experience as a DevOps, Linux System Administrator or SRE with production environment linux based.
— Strong network knowledge, complete understanding of TCP/IP, UDP, BGP. Ability to troubleshoot, profile and resolve network issues.
— Experience of installation and manage Kubernetess high available cluster in production environment in multiple colocations environment with physical assets (bare metal).
— Knowledge of Kubernetes core components: kube-apiserver, kube-scheduler, kube-controller-manager, kube-proxy, etc.
— Experience with containering and virtualization using Docker, LXC, KVM/QEMU;
— Experience with databases: MySQL\Percona, PostgreSQL, MongoDB, including performance tuning, replication and high availability practises.
— Deep knowledge in Nginx, PHP-FPM, RabbitMQ, Redis, ElasticSearch/Logstash/Kibana.
— Strong experience of administration linux distributions (Debian/Centos/Ubuntu/etc), hardering practices, performance tuning practices.
— Deep knowledge in Unix-like systems including kernel subsystems, system calls, inter-process communication, process / resource management, file systems, networking, protocols, sockets etc
— Knowledge in security field: firewalls, IDS/IPS, SELinux.
— Experience with network file systems like glusterfs, nfs, ceph.
— Knowledge local tools for monitoring and troubleshooting: tcpdump, ss/netstat, mtr, vmstat, iostat, top, sar, free, pmap, ps, lsof, strace, iproute2 utilities.
— Experience with monitoring and logs collecting systems: Zabbix, Graphite, Grafana, Sentry, ELK stack, Prometheus
— Ability to write complex scripts (shell/python/perl)
— Experience with IT Automation Software with any tools like ansible, puppet or chef
— Sufficient English to understand the documentation
— Experience with incident management and on-call rotation
— Familiar with continuous deployment strategies (blue/green, canary)

We offer:
— Possibility to be part of the creative environment and make your input to it;
— Variety of social and professional activities;
— Friendly and warm culture;
— PE employment;
— 24 calendar days of vacation paid per year;
— Medical insurance paid after successful trial period;
— English courses (partly compensated by the company);
— Documented sick days paid;
— 3 non-documented sick days paid;
— Breakfasts/fruit/yummies in the kitchen.