Linux System Administrator

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Intermedia Cloud Communications

WebsiteLinkedInAll Job Openings

1001 - 5000 employees

💼 Consulting

🏥 Healthcare

⚖️ Legal

💰 Venture Round on 2017-02

Consulting • Healthcare • Legal

Intermedia Cloud Communications is a leading provider of cloud-based communication solutions, specializing in unified communications, video conferencing, and various productivity tools. Their platform, Intermedia Unite, integrates voice, video, chat, and file management into a seamless user experience, enabling businesses to communicate and collaborate effectively from anywhere. With a focus on security and compliance, Intermedia serves a range of industries including healthcare, legal services, and financial services, helping organizations enhance productivity and customer care with advanced technology and support.

📋 Description

• Provision, configure, monitor, and decommission Debian-based virtual machines across Hyper-V, VMware ESXi, and OLVM environments using Cinc (Chef) and Ansible automation. • Perform routine Linux system administration, troubleshooting, and maintenance. • Participate in operating system upgrades and lifecycle management. • Develop, review, and maintain Cinc (Chef) cookbooks, Ansible playbooks, roles, data bags, and environments. • Improve infrastructure automation and configuration consistency. • Onboard servers into internal monitoring systems and Grafana. • Configure SNMP-based monitoring and alerting. • Investigate monitoring alerts and assist in resolving operational issues. • Participate in production monitoring during scheduled shifts. • Assist in operating shared infrastructure services, including: • RabbitMQ • Elasticsearch • Graylog • Grafana • Postfix mail relay clusters • BIND DNS servers • Sentry • Apply operating system and security updates through CI/CD pipelines and unattended upgrades. • Maintain firewall configurations (iptables, IP sets, F5 LTM/GTM). • Assist with TLS certificate lifecycle management using DigiCert and internal Certificate Authorities. • Participate in production incident response, disaster recovery activities, and post-incident reviews. • Help identify root causes and contribute to long-term operational improvements. • Maintain runbooks, operational documentation, knowledge base articles, and SaaS GRID documentation in Confluence. • Participate in infrastructure modernization initiatives, including: • Hypervisor migrations (VMware ESXi and Hyper-V to OLVM) • Debian major-version upgrades • Legacy platform migrations • Data center consolidation and decommissioning

🎯 Requirements

• Bachelor's degree in Computer Science, Information Technology, or a related technical field, or equivalent practical experience. • 1–4 years of hands-on Linux systems administration experience (Debian or Ubuntu preferred). • Solid understanding of Linux fundamentals, including: • systemd • networking (VLANs, DNS, NTP) • filesystems • user and group management • LDAP authentication • Experience with at least one configuration management platform (Ansible or Chef/Cinc). • Familiarity with virtualization platforms such as Hyper-V, VMware ESXi, or KVM/OLVM. • Basic Bash scripting skills and the ability to understand and modify existing Python scripts. • Understanding of web servers and reverse proxies, particularly Nginx. • Basic knowledge of TLS/SSL certificate management. • Experience using Git for source control and code reviews. • Ability to work in production environments while following change management procedures. • Good written English skills for documentation and collaboration across distributed teams.

🏖️ Benefits

• Operating System | Debian • Virtualization | Hyper-V, VMware ESXi, OLVM • Configuration Management | Cinc (Chef), Ansible • Web Services | Nginx, Apache • Containers | Docker • Messaging | RabbitMQ • Search & Logging | Elasticsearch, Graylog • Monitoring | Grafana, Telegraf, SNMP • Mail | Postfix • DNS | BIND • Load Balancing | F5 LTM/GTM, A10 • Security | iptables, IP sets, Qualys, Splunk, Falcon, DigiCert, Internal CA • Package Repositories | Sonatype Nexus, Aptly, Artifactory • Databases | Percona MySQL, H2 • CI/CD | TeamCity, GitLab • Collaboration | Confluence, ServiceNow, Redmine