Responded promptly to unplanned events and service interruptions, ensuring rapid restoration of services to minimize downtime.
Participated in bridge calls to troubleshoot and resolve production issues in AIX and Linux environments, restoring systems to normal operations efficiently.
Monitored and managed system resources (CPU, disk usage, response times) to maintain optimal performance and operational efficiency.
Investigated and resolved hardware/software issues on servers and workstations; escalated incidents when necessary.
Client Engagement & Team Leadership
Worked onsite at client location, fostering strong collaboration and communication with stakeholders to build trust and maintain relationships.
Managed both onsite and offshore teams, providing guidance and support for production escalations.
Conducted regular huddle calls to review ongoing issues, align operational processes, and motivate team members.
Infrastructure & Server Administration
Managed Linux and AIX servers to achieve near 100% uptime, ensuring stability and reliability.
Performed system upgrades, patch installations, and firmware updates to maintain secure and efficient environments.
Administered DNS/DHCP services and managed SSL certificate lifecycle for secure enterprise communications.
Oversaw file system permissions, user accounts, and access privileges across multiple applications.
Data Center & Network Operations
Managed VMware-based data center operations supporting 2,500+ virtual machines across multiple environments.
Automated network configurations using Ansible and Python, reducing manual errors by 40%.
Monitored network device health, performance, and utilization to optimize operations.
Provided telecom support for RSA, GlobalProtect remote access, and Citrix phone systems.
Compliance & Change Management
Collaborated with GRC teams to ensure compliance with ISO 27001 standards and internal audit requirements.
Acted as Change Coordinator for infrastructure upgrades, ensuring minimal disruption and complete documentation.
UNIX System Administrator
Cisco Systems
05.2018 - 07.2018
Responsible for administering and managing AIX and Red Hat 5/6 and SUSE 10/11 servers in various environments. Possess in-depth working knowledge of Linux file systems and storage architecture.
Hands-on experience of high-performance clustered file system i.e. GPFS.
Performing routine administration tasks for AIX servers, including monitoring, patching, backups, and user management.
Experience in configuring LPM to move AIX lpars between P8, P9, and P10 frames.
Troubleshoot and resolve AIX-related issues, escalating complex problems to senior administrators.
Managed large, complex environments with hundreds of servers across multiple datacenters on multiple continents.
Experience on Hardware technology like IBM, Dell and IBM blade Severs.
Requires the ability to effectively interact with internal and external personnel on significant technical matters often requiring coordination between business units, organizations, and vendors.
Installation, maintenance, administration, troubleshooting, and performance monitoring of the Microsoft Windows platform, including experience with enterprise design and understanding of network architecture, DNS, firewalls, load balancers, clustering, etc.
Installation and configuration physical and virtual as windows and Linux/Ubuntu.
[Smart IMS]
Linux System Administrator
Everyday Health, Inc.
02.2016 - 03.2018
Responsibilities will include building, installing, and configuration of Linux based servers, deploying and testing OS, virus updates, baselines and disk imaging, patches and performance tuning.
Written and implemented many playbooks for Ansible for day-to-day operations.
Automated the system admin activities using configuration management tools using Chef and Docker.
Experience on Hardware technology like IBM, Dell and IBM blade Severs.
Troubleshoot Linux server and OS issues. Independently utilizes all available resources (knowledge bases, online resources, etc.) to ensure timely resolution of server issues.
Develops operating procedures for system administration activities including system monitoring, performance tuning, backup/recovery, server architecture design, and system maintenance.
Performs regular system maintenance, hardware and software upgrades, server migrations and performance tuning.
Strong customer/client focus with the ability to provide a superior customer/client experience and build long-term relationships.
Ability to work autonomously and as a member of a team.
Maintain data files and monitors system configuration to ensure data integrity.
Provide the expertise to diagnose and remediate server, network and end user issues that are escalated by other members of the Remote Support delivery team.
Everyday Health is a broad-based health information portal that provides consumers with trusted and actionable health information intended to empower users to better manage their health and wellness. They provide digital health marketing and communications solutions targeted to consumers. Health Consumer solutions are delivered through multiple channels, including desktop, mobile web, and mobile phone and tablet applications, as well as video and social media.
Environment: Red Hat Enterprise Linux – Versions 5,6 and 7, Oracle VM, NIS, NFS, DNS, NAS, FTP and Virtualization - Hypervisor, Solaris zones and Windows DL 360 environment. HP Servers - HPE ProLiant Servers.
Linux System Administrator
ORACLE CORPORATION
05.2012 - 02.2016
Installing, configuring, and maintaining services such NFS, NIS, DNS and Apache. Create, maintain, and monitor processes, policies, procedures and methodologies in an effort to help ensure the ongoing integrity of supported systems and applications.
Plan and develop an organization and technology infrastructure that can respond rapidly to business growth and requirements.
Coordinate departmental and vendor relationships for highest levels of cooperation and efficiency.
Implementing high-quality, cost-effective technology solutions that meet business, budgetary and functionality requirements.
Responsible for administering and managing Red Hat 5/6 and SUSE 10/11 servers in various environments. Possess in-depth working knowledge of Linux file systems and storage architecture.
Working experience on high performance clustered file system i.e. GPFS.
Strong knowledge of TCP/IP, HTML, HTTP, SSL, SSH, SFTP, DNS, Apache, Tomcat and LDAP.
6+ years of experience directly related to Windows System Administration Windows 2003/2008/2012 and Desktop support with increasing responsibilities administering client/server applications.
Managed large, complex environments with hundreds of servers across multiple datacenters on multiple continents.
Experience on Hardware technology like IBM, Dell and IBM blade Severs.
Requires the ability to effectively interact with internal and external personnel on significant technical matters often requiring coordination between business units, organizations, and vendors.
Installation, maintenance, administration, troubleshooting, and performance monitoring of the Microsoft Windows platform, including experience with enterprise design and understanding of network architecture, DNS, firewalls, load balancers, clustering, etc.
Installation and configuration physical and virtual as windows and Linux/Ubuntu.
Possess in-depth working knowledge of Linux patch management and related information security functions.
Working with development team and provide assistance in integration and deployment of applications on designated platforms and resolve any issues with development on a day-to-day basis on multiple platform such as Linux/Unix, Ubuntu, SUSE, Windows.
Linux Administrator
ASM TECHNOLOGIES INC
09.2011 - 05.2012
Create, maintain, and monitor processes, policies, procedures and methodologies in an effort to help ensure the ongoing integrity of supported systems and applications.
Plan and develop an organization and technology infrastructure that can respond rapidly to business growth and requirements.
Coordinate departmental and vendor relationships for highest levels of cooperation and efficiency.
Implementing high-quality, cost-effective technology solutions that meet business, budgetary and functionality requirements.
Working experience with various Linux distributions: Red Hat Linux and Oracle VM.
Possess in-depth working knowledge of Linux file systems and storage architecture.
Strong knowledge of TCP/IP, HTML, HTTP, SSL, SSH, SFTP, DNS, Apache, Tomcat and LDAP.
Deep understanding of storage and SAN technology: virtual disk, LUNs, snapshot, replication and thin provisioning.
Experience on Hardware technology like IBM, Dell and IBM blade Severs.
Implemented and worked on Configuration management tools like Puppet for daily operations.
Strong understanding of Linux security principles, defense in-depth, firewalls, IPS/IDS, identity management, authentication and encryption.
Possess in-depth working knowledge of Linux patch management and related information security functions.
Proven track record in designing and implementing highly available, scalable, resilient and fault tolerant systems platform.
Experience in disaster recovery and business continuity principles and methodologies.
Experience in designing and maintaining back-up/restore, archiving, and data protection strategy using local and online backup solutions for physical and virtualized systems.
Ability to articulate issues in business and technical terms.
Experience in an operational senior Linux administration role supporting mission-critical platforms, including physical and virtualized environments.
Strong working knowledge of Linux shell and scripting languages such as bash and Perl.
Solid understanding of IP network technologies and software tools for performance monitoring and troubleshooting.
Familiar with and willing to implement open source solutions and tools where appropriate.
Self-starter and be able to work independently, but also within a team.
Experience in managing third party vendor relationship.
Strong interpersonal skills: ability to communicate with customers, vendors, partners, and business managers across various levels of the organization.
IT Administrator
FAURECIA EMISSIONS CONTROL TECHNOLOGIES
08.2010 - 09.2011
Develop, implement, manage, and maintain security standards, procedures, and guidelines for multiple Linux platforms.
Monitor application performance and availability.
Add server capacity to clusters to support growth.
Provision test environments to support research and development.
Execute software releases to production and test environments.
Automation of common processes and metric collection using scripts.
Respond swiftly to security vulnerabilities by applying patches or workarounds.
Address L1/L2 issues and debugging problems for engineering handoff.
Create technical documentation in Confluence for peers, engineering and service provider.
Be available off hours for on-call rotation and production changes.
Remedy service management - handle customer tickets and SLAs.
Maintenance of email & proxy server on Linux 5.
Created and managed standard desktop images for employees based on job function reducing the time required to install appropriate software on a new PC.
Directly responsible for the management of all technology initiatives from the planning phase through implementation and maintenance.
Performed daily administrative tasks including adding and deleting users, setting up share areas, controlling data access and network management.
Troubleshoot hardware, operating system and network problems and performance issues.
Environment: Red-Hat Linux 5, Windows 2008 R2 server; Oracle 11g; DB2; MySQL 5.x; JDK 1.6,1.7; VMware Virtual Client 5.x; VMware Infrastructure, vMotion.
System Administrator
SYMANTEC CORPORATION
06.2009 - 08.2010
Responsible for processes and procedures related to LAN.
Configuration and maintenance of DNS, DHCP, NFS, NIS and other network services.
Written documentation of all systems and services for transfer of knowledge to respective personnel.
Performed troubleshooting of various software and operating system related problems.
Verify System state backups. Create / configure shares and groups. Troubleshoot OS related problems, involving other departments or vendors as necessary.
Attend Bridge calls and problem resolution sessions.
Installation and support of servers and desktops.
Systems Engineer
BHARATI CELLULAR LTD.
08.2005 - 05.2009
Troubleshooting of hardware and OS related problems.
Performed hardware upgrades when requested. Update Firmware and Compaq agents and drivers.
Planning and implementation of DNS and Active Directory, Troubleshooting TCP/IP and Name Resolution.
Documented the LAN, WAN implementation and ongoing activities.
Administration of Windows NT/2000 Active Directory.
Testing of security patches on Windows NT, 2000, XP Desktops as per test cases for application and OS compatibility.
Network printer management.
PC assembly, hardware repairs and troubleshooting.
Installing of leased line modems (Internal, External).
INDIA.
Environment: Windows 2003, Dell power-edge Servers 2950, Cisco routers and Switches. Dell Desktops and LAN maintenance.