Grade: Senior/Senior+/Lead Timezone: working according to New York, USA timezone Start date: ASAP

The main task is to understand the causes of current failures, eliminate single points of failure, and build a predictable, observable, and fault-tolerant infrastructure. We need a specialist who can not only propose a technical solution but also implement it independently.

Tasks: — Conduct an audit of the current production infrastructure and network architecture. — Analyze the causes of existing failures and identify bottlenecks. — Identify and eliminate single points of failure. — Develop and implement a plan to improve infrastructure availability. — Administer and develop infrastructure based on Proxmox VE: clusters, quorum and Corosync; Proxmox HA; — Configure floating IP/VIP and automatic failover between nodes. — Regularly test failover and recovery scenarios. Configure and maintain network infrastructure, routing, NAT, and firewall. — Develop monitoring, centralized logging, and alerting systems. — Participate in resolving production incidents, conduct RCA, and prevent recurring failures. — Automate infrastructure and operational tasks. — Create and maintain technical documentation, infrastructure diagrams, and runbooks.

What is important to us: — Strong knowledge of Linux, Ubuntu. — Practical experience operating production infrastructure. — Confident experience with Proxmox VE. — Understanding of fault-tolerant system design principles. — Practical experience configuring HAProxy. — Experience configuring OpenResty or Nginx. — Experience with Keepalived and VRRP protocol. — Deep understanding of TCP/IP, DNS, routing, NAT, and VLAN. — Experience configuring firewall and ACL, including iptables or nftables. — Ability to diagnose network problems using tcpdump, ss, traceroute, and other tools. — Practical experience configuring monitoring and alerting. — Skills in investigating complex production incidents and conducting Root Cause Analysis. — Automation experience using Bash or Python. — Ability to make independent technical decisions and be responsible for the outcome.

Will be an advantage: — Experience with Prometheus, Grafana, VictoriaMetrics, or Zabbix. — Experience with centralized logging using ELK or Loki. — Experience with Docker, Docker Compose, or Docker Swarm. — Knowledge of Ansible or Puppet. — Experience creating CI/CD pipelines in GitLab CI or Jenkins. — Experience administering, optimizing, and scaling MySQL. — Knowledge of Lua and experience with advanced OpenResty configuration. — Experience building backup and disaster recovery processes. — Experience with high-load or business-critical systems.

What we offer: — Interesting unique tasks — Work according to USA - New York time — Comfortable working conditions — High and official salary — High-class equipment for work — Performance bonuses — Professional growth — Career growth — Remote work — Salary based on interview results

Contact for application: recruiter contact