Position: Intermediate IT Specialist
Company: IT-Rex - IT Staff Recruitment
Category: Sysadmin
Experience required: 2y
English level: intermediate

Qualifications and experience:

Expertise in troubleshooting and high critical/load IT environments
Administration of Linux (Ubuntu) servers, Windows server environments
Experience in installing, configuring, and maintaining services such as MySQL, Apache, and NGINX
Experience with scripting for Linux (bash), Windows (PowerShell), Python, and version control (Git)
Knowledge of Cloud technologies (AWS, GCP services)
Experience with tools like CI/CD (Jenkins/TeamCity), Ansible
Deep knowledge of containers and orchestration tools (Docker)
Proven understanding of OSI model, TCP/IP, DNS, DHCP, NAT, VLAN, routing, 802.11b/g/n/a/ac, 802.1X, 802.3at/af, security- related protocols (SSH, HTTPS, IPsec, etc.) and related networking protocols and, technologies.

Nice to have:

Good written English
Ability to build and monitor services on production servers
Knowledge of SSL/TLS Protocols (securing servers, generating, and validating certificates)
Strong understanding of operational practices around performance monitoring, fault monitoring and general tools related to system management (Prometheus, ELK Stack, Wireshark, Grafana)
Strong understanding of modern operating environments and disciplines: firewalls, proxies, certificates, network, security, etc.
Ability to design and implement Disaster Recovery, failover