Linux Systems Engineer

Career Opportunities with Communication Technology Services Inc A great place to work. We are seeking a Linux Systems Engineer This role will have 'full-stack' authority and responsibility across all aspects of the company's Data Center and Customer-Premise deployed equipment, to include hardware, Host OS, hypervisor, Guest OS, Orchestration, Applications and monitoring. Key Responsibilities Support physical and virtual network and computing environments in a Linux-based data center environment. RedHat/CentOS/Rocky - Administration, troubleshooting, and security of CentOS 5,6,7 and 9. Linux iscsi - Attaching, disconnecting, and manipulating iscsi block devices using iscsiadm, LVM, and multipath. Linux KVM virtualization - Creating, copying, management, and monitoring of virtual guests. MySQL Database - Administration, Replication, Clustering, backups, and SQL queries. IP networking - IP addressing and subnetting, network address translation, routing protocols, linux iptables, linux bridging. Data munging - Extracting useful information from various sources including log files and databases then presenting the data in a machine or human readable format. Participate in a 24x7 on-call rotation. Develop KnowledgeBase articles and Standard Operating Procedures. Investigate, diagnose and resolve production issues as logged by monitoring tools or as reported by customers. Qualifications The ideal candidate has at least five years of experience supporting physical and virtual network and computing environments, in a Linux-based data center environment. Relevant experience would include physical and virtual server implementation, operation, and maintenance, SAN, NFS, LVM, iscsi, MySQL, Linux-ha, DevOps, 24x7x365 operations, HP, Dell, SuperMicro, Cisco/Fortigate/Mikrotik hardware and software, routing, switching, load balancing, firewalls, IPv4, IPv6, Public Cloud migration/administration. Proficient at troubleshooting production issues, solving problems, and implementing updates to production software. Understanding of internet protocols including HTTP, DNS, RADIUS, SSH, and SMTP. Analyzing packet captures to distinguish between problems at the protocol level vs. network connectivity. Experience with writing and troubleshooting Perl or Linux Shell Scripts required. Experience with OpenNebula virtualization management helpful. Experience with Cacti and Nagios monitoring systems strongly desired. Experience with Virtualization technologies (Linux KVM preferred). Experience with Container technologies and supporting tools (e.g., Docker, Kubernetes, Rancher). Experience with Clustering technologies (e.g., PaceMaker). Working knowledge of SAN systems, especially in a ZFS environment. Working knowledge of Java application servers including Tomcat, JBoss, and message brokers. Good organizational and vendor management skills, inclusive of issue tracking, metric reporting, etc. Demonstrated experience in effective decision-making within a high-pressure 24x7 environment. Strong research, investigation, and evaluation skills. Ability to identify and clearly communicate problems/support requests in order to influence the prioritization of production defects and/or enhancements. Excellent communication skills, both written and oral. Results-oriented and highly flexible, able to work with minimal supervision. Inquisitive self-starter with strong attention to detail. Bonus Skills/Knowledge ActiveMQ Errigal Mobile carriers/Messaging Deep Packet Inspection products PaceMaker, DRBD. ProxySQL Education 4 Year Technical Degree (Example: BSCS, BSEE, etc.) or equivalent workplace experience. Requirements Ability to work outside of normal business hours when needed. Ability to travel on an "as needed" basis when required, perhaps quarterly. Employment Type Full-time Exempt Job Functions Information Technology Location : This will be a remote position but someone located in the Orlando, Fl area is desired. Annualized Pay range of $105-$115K commensurate with experience #J-18808-Ljbffr

Created: 2025-03-01