Comcast brings together the best in media and technology. We drive innovation to create the world's best entertainment and online experiences. As a Fortune 50 leader, we set the pace in a variety of innovative and fascinating businesses and create career opportunities across a wide range of locations and disciplines. We are at the forefront of change and move at an amazing pace, thanks to our remarkable people, who bring cutting-edge products and services to life for millions of customers every day. If you share in our passion for teamwork, our vision to revolutionize industries and our goal to lead the future in media and technology, we want you to fast-forward your career at Comcast.
Job Summary
We are seeking a skilled Windows & Linux Administrator with 5 to 8 Years of Application Support experience to manage, support, and secure IT infrastructure and business-critical applications. The ideal candidate will be responsible for system administration, application availability, proactive monitoring, and timely security vulnerability patching to ensure system stability and compliance.
Job Description
Windows & Linux Administration
- Administer, configure, and maintain Windows and Linux servers (physical and virtual).
- Perform system installation, upgrades, configuration, and troubleshooting.
- Manage user accounts, access controls, file systems, and system permissions.
- Monitor server performance, capacity, and resource utilization.
Application Support
- Provide L2/L3 application support for business-critical applications.
- Troubleshoot application issues, analyze root causes, and implement permanent fixes.
- Coordinate with development, infrastructure, and vendor teams for issue resolution.
- Handle application deployments, configuration changes, and production support activities.
Security Vulnerabilities & Patching
- Conduct regular OS and application patching for Windows and Linux environments.
- Identify, assess, and remediate security vulnerabilities as per organizational policies.
- Work closely with security teams to ensure compliance with security standards and audits.
- Maintain patching documentation and change records.
Monitoring & Incident Management
- Implement and manage monitoring tools to track system, application, and service health.
- Proactively identify potential issues and take preventive actions.
- Respond to alerts, incidents, and outages; perform root cause analysis (RCA).
- Ensure adherence to SLAs and timely resolution of incidents.
Required Skills & Qualifications
Technical Skills
- Strong experience in Windows Server and Linux OS administration.
- Hands-on experience in Application Support and production environments.
- Knowledge of security vulnerability management and patching.
- Experience with monitoring tools (e.g., Nagios, Zabbix, SCOM, AppDynamics, Splunk, or similar).
- Basic understanding of networking concepts (DNS, TCP/IP, firewalls).
- Familiarity with virtualization (VMware, Hyper-V) and cloud platforms is a plus.
Soft Skills
- Strong troubleshooting and analytical skills.
- Good communication and documentation abilities.
- Ability to work in shifts/on-call support if required.
- Strong ownership and accountability mindset.
We believe that benefits should connect you to the support you need when it matters most, and should help you care for those who matter most. That's why we provide an array of options, expert guidance and always-on tools that are personalized to meet the needs of your reality—to help support you physically, financially and emotionally through the big milestones and in your everyday life.
Please visit the benefits summary on our careers site for more details.
Education
Bachelor's Degree
While possessing the stated degree is preferred, Comcast also may consider applicants who hold some combination of coursework and experience, or who have extensive related professional experience.
Certifications (if applicable)
Relevant Work Experience
5-7 Years
Comcast is an equal opportunity workplace. We will consider all qualified applicants for employment without regard to race, color, religion, age, sex, sexual orientation, gender identity, national origin, disability, veteran status, genetic information, or any other basis protected by applicable law.