Linux Engineer

Job DescriptionThe Senior Network Engineer is responsible to act as technical lead and subject matter expert on projects and business support requests of all sizes, from initiation through successful completion. You should be able to provide multiple solution approaches and be able to perform the engineering and drive the development required to implement any selected option. In alignment with Store Systems Management, you would also responsible for providing day to day coordination of activities pertaining to project direction, planning, estimating, project health and reporting, problem resolution and collaboration with key stakeholders to ensure project goals are met. In addition, the Senior Network Engineer provides Store Systems Management with regular status updates and proactively provides mentoring to individuals on best practices, continuous process improvement, and completion of customer satisfaction initiatives.Linux Systems Administrator / EngineerDuties/Responsibilities (Detailed): Administration of RedHat/CentOS Linux systems RHEL/CentOS 7 - SysV/init boot configuration RHEL/CentOS 7 - systemd boot management Extensive knowledge of BASH required Installing System updates Linux OS management Sudo Cron Syslog / Rsyslog Using RPM to install packages Using zypper to install packages Using YUM, Dpkg..etc. Setting file permissions Using ACLs / ACEs to manage file/directory access Differentiate between hard links vs soft links Linux boot process Understanding the boot process Troubleshooting boot issues Boot alternate operating systems Boot alternate disks MBR partitioning GRUB GPT partitioning GRUB2 Virtualization (3+ Years' Experience) Building and Maintaining VMs using KVM Creation of virtual machines & OS installation on VMguests Allocating resources to virtual machines Templates and cloning Configuration of datastores Network Bonding Pass-through devices LVM - Logical volume manager Add/expand/configure disks with LVM Disk partitioning with FDISK Disk partitioning with PARTED Docker Containers Open Source - Understand what is available, how to get, install, configure and support. Scripting BASH functions, loops, command line arguments Usage of AWK, SED, PERL, pipes Good knowledge of regular expressions Script debugging Networking Configuring network interfaces Clear understanding of the system files that impact network configuration Troubleshooting network connectivity issues Ping Traceroute TCP vs UDP Tcpdump Netstat Sockets Routing Firewalls / iptables Experience with Network Address Translation (NAT/PAT firewall configuration.) Experience with Network Masks and CIDR Notation DNS Configuring & managing DNS/BIND Conditional forwarding Master/Slave configurations DHCP Installing, configuring DHCP on Linux Dynamic dhcp pools SQUID proxy Installation & configuration caching only proxy server mySQL/MariaDB installation & configuration of a db backup & restore Basic understanding of SQL queries Apache installation & configuration integration with tomcat configuring virtual hosts security considerations generating key files, CSRs, self-signed certificates Tomcat - Installation & Configuration Experience with using, generating and managing SSL certificates NTP - configuration, validation, peers, servers and synchronization SSH Configuration Private / Public key generation & management NFS Sharing files/directories to specific clients Security considerations NFSv3 vs NFSv4 CUPS - Configuration, Managing printer queues, Remote printing & Troubleshooting printer Subsystems. General Troubleshooting Skills in the following areas: Disk failure Filesystem failure Network failure Hardware HP ProLiant DL360 server ILO management Raid configuration Comfortable installing Server hardware in Data CenterRequired Qualifications- 3+ years of experience as a SYSADM building and supporting RHEL / CentOS Server systems.- 3+ years experience in a large Enterprise Data Center environment. (> 1K Systems)- 3+ years of experience of BASH scripting- 3+ years of experience working with Application teams to translate requirements into functioning systems.COVID RequirementsCOVID-19 Vaccination RequirementCVS Health requires certain colleagues to be fully vaccinated against COVID-19 (including any booster shots if required), where allowable under the law, unless they are approved for a reasonable accommodation based on disability, medical condition, religious belief, or other legally recognized reasons that prevents them from being vaccinated. You are required to have received at least one COVID-19 shot prior to your first day of employment and to provide proof of your vaccination status or apply for a reasonable accommodation within the first 10 days of your employment. Please note that in some states and roles, you may be required to provide proof of full vaccination or an approved reasonable accommodation before you can begin to actively work.Preferred Qualifications- 3+ years of experience working with business users, gain a deep understanding of their needs and translate those needs into specific project deliverables. - Experience with Ubuntu Desktop- Prior experience writing bash scripts with 1000's lines of code.- > 5 years experience managing servers in a large enterprise environment (> 5K systems)- Experience with Zabbix Monitoring Tool- Experience with ELK- Experience with managing systems in Azure Cloud (Private)- Experience with OpenLADP- Experience with SSH Key Management- Experience with AMANDA Backup ToolEducationBachelor's degree or equivalent experienceBusiness OverviewBring your heart to CVS HealthEvery one of us at CVS Health shares a single, clear purpose: Bringing our heart to every moment of your health. This purpose guides our commitment to deliver enhanced human-centric health care for a rapidly changing world. Anchored in our brand - with heart at its center - our purpose sends a personal message that how we deliver our services is just as important as what we deliver.Our Heart At Work Behaviors support this purpose. We want everyone who works at CVS Health to feel empowered by the role they play in transforming our culture and accelerating our ability to innovate and deliver solutions to make health care more personal, convenient and affordable. We strive to promote and sustain a culture of diversity, inclusion and belonging every day. CVS Health is an affirmative action employer, and is an equal opportunity employer, as are the physician-owned businesses for which CVS Health provides management services. We do not discriminate in recruiting, hiring, promotion, or any other personnel action based on race, ethnicity, color, national origin, sex/gender, sexual orientation, gender identity or expression, religion, age, disability, protected veteran status, or any other characteristic protected by applicable federal, state, or local law.

Created: 2026-03-07