Windows and Linux System Administrator

Optum is a global organization that delivers care, aided by technology to help millions of people live healthier lives. The work you do with our team will directly improve health outcomes by connecting people with the care, pharmacy benefits, data and resources they need to feel their best. Here, you will find a culture guided by diversity and inclusion, talented peers, comprehensive benefits and career development opportunities. Come make an impact on the communities we serve as you help us advance health equity on a global scale. Join us to start Caring. Connecting. Growing together.

Primary Responsibilities

Design, Implementation & Operational Support of Windows 2012/2016/2019/2022 Servers

Working knowledge of VMWare vSphere and CentOS / RHEL OS platforms

Monitoring and troubleshooting server performance. Troubleshooting system and server errors. Reviewing system error logs and user-reported errors. Analyzes, logs, tracks, and resolves software/hardware matters of significance pertaining to networking connectivity issues, servers, and applications to meet business needs.

Performs troubleshooting to isolate and diagnose common system problems; documents system events to ensure continuous functioning. Recommends course of action and implements as approved.

Patch management, installations of security patches, functional patches, and version upgrades to server and vSphere / ESXi environment

Work experience in high availability and clustered environment configuration

Experience in managing and troubleshooting AD / DNS / DHCP / DFS issues

Proficient in controlling administrator rights on VM Infrastructure, Use of VMware Converter Enterprise, and overview.

Technical knowledge in vCenter and ESXi, Site recovery Manager 8.x, vROPS 8.X, vSAN, vRealize Log insight 8.x, VMware vSphere 7.x.

Strong experience in Windows Servers patching and troubleshooting

Experience on Server builds and decommission, Commission / Decommission of Domain Controllers. VMware Distributed Resources Scheduler (DRS) cluster, Resource Management, Resource Monitoring

Oversee Citrix environments, including setup, configuration, and maintenance of Citrix servers and applications.

Hands on experience in performance tuning of ESXi host. Implement Hardening on ESXi host. Experience in P2V, vMotion, and VMware virtual center

Experience in Commission / Decommission of ESXi Host hosted on various hardware like Dell, HP, Cisco UCS Blade Centers

Experience on configuration of HA and DRS features in a cluster and troubleshooting

Experience in configuring VMware vSphere iSCSI & Fiber Channel storage and troubleshooting

Experience on P2V and V2V migrations

Automate system administration tasks using PowerShell and other scripting tools.

Plan and execute system migrations, ensuring minimal downtime and robust data integrity.

Maintain and troubleshoot hyper-converged infrastructure (HCI) to support business operations.

Handle server hardware installation, upgrades, and maintenance.

Collaborate with cross-functional teams to design and implement IT solutions that meet organizational needs.

Implement and enforce system security, patch management, and compliance standards.

Provide timely support for escalated technical issues and participate in on-call rotations.

Qualifications

Strong experience in Windows/Linux Servers Administration

Proficiency in virtualization technologies such as VMware, Nutanix, and Citrix

Proven track record in system migrations and upgrades

Familiarity with hyper-converged infrastructure management

Experience in server hardware maintenance and troubleshooting

Knowledge of networking concepts, system security practices, and ITIL frameworks

Excellent problem-solving, communication, and teamwork skills

Proficiency in English (Written & Verbal) Language is mandatory

• Willing to work on a Hybrid set up (mostly work from home)
• Open to all Optum sites (Muntinlupa, Taguig, Makati, Quezon City)

Careers with Optum. Here's the idea. We built an entire organization around one giant objective; make the health system work better for everyone. So, when it comes to how we use the world's large accumulation of health-related information, or guide health and lifestyle choices or manage pharmacy benefits for millions, our first goal is to leap beyond the status quo and uncover new ways to serve. Optum, part of the UnitedHealth Group family of businesses, brings together some of the greatest minds and most advanced ideas on where health care must go in order to reach its fullest potential. For you, that means working on high performance teams against sophisticated challenges that matter. Optum, incredible ideas in one incredible company and a singular opportunity to do your life's best work.

Market Competitive Benefits and Pay Levels

Great Workplace

Career Growth and Development