Significant experience in diverse, heterogeneous environments including: major academics, software development, financial/trading floor, manufacturing, large scale (multi-hundred nodes).

Experienced as a technical and Network Manager.

Over eight years experience administering large scale, heterogeneous UNIX systems providing second and third level support.

Experience with many major enterprise UNIX variants: SunOS/Solaris, HPUX, and Linux.

Extensive experience with all major Unix services: NFS, GFS, Cluster, Directory Servers, Certificate Servers, IPSec, Postfix installations, automation, user management, backups, performance tuning, RAID 10,01,1,5, high availability.

Detailed, protocol level knowledge of major TCP/IP networking services: FTP, HTTP, DNS, mail servers, httpd, SMTP, Radius+PPTPD

Emphasis and specialty in system performance monitoring, tuning, and optimization.

RED HAT Inc.

Red Hat, Inc. is the world's most trusted provider of Linux and open source technology.
Sr. Technical Consultant (September 2005 - Present)

Responsibilities:-

Provided pre-sales technical support for national account executives selling Red hat Enterprises products. As sole sales engineer, conducted customer presentations (administrators to C-level executives), product demonstrations and training, responded to RFPs and provided technical product expertise to add value to the selling/closing process.

Produced and presented product presentations, demos and training for potential customers.

Collaborated with customer technical resources in security issues, product customization, integration planning and support efforts.

Moderated public support forum for all Red hat Enterprises products.

Establishment of a centralized document management portal to provide knowledge sharing across the Global Professional Services for Indian team to insure consistent operating procedures.

Providing on call support to Valuable Customers after hours to maintain stability and uptime.

Writing documentation and training materials to bring new members of the team up to speed.

Line management of five-person team responsible for technical support to Red hat Channel Partners.

Installed proof-of-concept systems and trained/supported end-users.

Managed full life cycle implementation projects.

Implementation of Red hat Enterprise products from customer specifications and set up/loaded software on pilot test servers.

Technical Responsibilities:-

Enterprise Wide Consultation for Systems and Linux Deployments using Red Hat Enterprise Linux Enterprise Server.

Implementation and Migration Strategies from Existing Heterogeneous Operating Environment to another Network.

Messaging and Collaboration Solutions Design and Implementation.

Oracle Database, Application Server and Collaboration Suite Implementations and Migrations in Linux.

Design and Implementation of Identity Management, Single Sign-On and Resource Management solutions.

Enterprise Solutions for File Server, Print Server Implementations using Red Hat Enterprise Linux/Applications.

Design and Implementation of Enterprise Linux Desktop Solutions using Red Hat Desktop.

Install, configure and administer Oracle 10g Database, Oracle RAC and Oracle 10g Application Server on Linux.

Install, configure and administer Failure Resistant, Highly Available (HA) Clustering Environment with Load Balancing using RedHat Advanced Server.

Migration of Windows Environment to Linux Environment.

Implemented many Linux systems in heterogeneous networks (using DHCP,DNS and cross platform communication using Samba).

Wrote many shell scripts for the company/clients for automating job.

ACL WIRELESS LTD

(Network Manager) April 2001 to August 2005

Network Administrator and team lead for the network operations at ACL Wireless Ltd., responsible for the LAN, WAN, SMS, WAP and WIB connectivity of cellcos and associated Linux development including staging and production deployments. Leading a team of 10 people, direct end user support from the desktop to the cellular network in Asia Pacific, China, Middle East and India.

Network Operations

Monitoring and Management Production/Service Nodes

Capacity Planning & Feasibility Study

Implementation Core Support

LAN Revamp and Enhancements

Management Responsibilities

Provide day-to-day management for team. Prioritize workflow, manage and direct projects. Conduct performance reviews, address performance issues. Interviewed and trained new hires.

Ensure team meets strict service-level requirements (SLAs). Manage ticket queues. Work with Site Manager to manage user expectations and relationship.

Act as managerial and technical escalation point on a 24x7 basis.

Capacity & Operational Planning, Training, documentation, Trouble Ticket Management & Roster Management (on a weekly basis).

Configuration & Backup Management of SMS Gateways and Application Servers to alleviate any unforeseen Service/Node downtime.

Technical Responsibilities

Design, specify, and implement all corporate building and remote network infrastructure changes or additions, including, but not limited to: LAN/WAN connectivity, firewalling, and per-client network design needs. Troubleshoot all network connectivity problems and serve as contact for upstream bandwidth providers and telecom engineers. Work as a specialized member of the Systems Administration team, primarily in the areas of TCP/IP communications, including host-side firewalling and network security, client and server email configuration, NFS, and DNS issues. Provide support for 3Com, HP and other routers and switches, RedHat Linux and other UNIX systems, both on-site and off-site. Create and improve wide variety of custom tools and Open Source utilities.

SMSC Integration - Integration and deployment of WIM and WMS to various cellular operators in Asia Pacific, China, Middle East and India. Region. SMSC connected with (CMG SMPP 3.4, Converse SMPP 3.3, Hughes SMPP 3.4, Nokia CIMD 2.0).

Open Source Project - Designed and implemented of UDH 7 bit binary message and 8 bit binary message SMART MESSAGING(Blink Msg, Picture Msg, Ring Tone, Service indication(SI,SL), Push Message, MMS) with using client open source KANNEL gateway. Major clients are Airtel(India), MTC(Kuwait), Link tone(China). Continuous participation in open source projects and on technical mailing lists.

Deployment - Deploying and implementing interface for performing all WIM and WMS tasks as well as providing an interface for all Enterprise Linux servers.

Network Optimization: Increasing Network optimization, Kernel Optimization, File system performance (File Descriptor Limit) in Enterprise Red hat Linux.

Network Revamping: With the corporate customers ranging from almost all domestic Operators to major enterprises. A Major revamping of the existing network infrastructure had been undertaken namely.

IP Migration - Corporate need for Dual-homing and eliminating any direct dependency on a particular service provider as an independent Autonomous System. Setup LVS router on Linux.

Extranet Setup - Leased Line Connectivity (64 Kbps) between Spectra net and Airtel(Delhi).

Enterprise-wide Antivirus solution - Trend Micro Enterprise Suite

Cyrus/SASL/Mailscanner Setup - To securely transfer mails, documents and for password distribution within the organization.

Securing Service / Network Elements – Defining & Implementing Security Policy/Checklists for Service Nodes.

Secure VPN – Setting up a Secure VPN using Freeswan(IPSEC) between Corporate office ASP Datacenter and Operator premises.

Secure Web Server : (https) Installation, configuration and testing of the digital certificate (Entrust).

ACL Wireless Customer Support

Increasing customer-base led to positioning a one point of contact for all customer queries and concerns. The customer support group as of today provides for 24*7 first level support and interaction within the purview of the Service Delivery infrastructure.

Technical Strengths

Operating Systems: Enterprise Red Hat Linux, Windows 2000 Professional/Server.

Firewalls: Checkpoint NG with AI, Kerio Enterprise and IPTables (2.4-18), IPChains.

Database Server: MySQL, PostgresSQL, Ozone 1.0(ODBMS), versant (ODBMS), Object Design (ODBMS).

Mail Server : Postfix+Amavis+LDAP+Courier-IMAP, Dovecot, Mailman, Sendmail, Squirrelmail

Application Server : Jboss, Resinn (Caucho), Tomcat

Network: TCP/IP, NFS, HTTP, SSL, IPSEC, FTP, NNTP, SMTP, POP, IMAP, SSH, DNS, LDAP, Active Directory, Microsoft Exchange, firewalls, NAT, SMB (Samba) , Staging small to medium sized networks – LANs/WANs.

Scripting: Bash, AWK, SED

SMS/WAP Server: Converse SMPP 3.3, 3.4, Hughes SMPP 3.4, NOKIA CIMD 2.0, Wap Gateway 1.1, Nokia SMS Smart Messaging (MMS), Nokia Active Server 2.0(MMS), Nokia Developer Suite for MMS, Open Path (Simulator of SMPP), SMPP Open Logica Stack, Customize Open Source Kannel 1.1.6, 1.2.0.

White Software Limited

(Sr. Network Administrator) February 2000 - March 2001 Web Sites – Maintenance and Development

Responsibility & Implemented: Maintenance of 4 Linux Web Servers and 1 Windows NT Web Server, hosting three web sites Bharatnet.com, Salahkarindia.com, Whitesoftware.com

Technical Specifications - assessing customer’s requirements with the feasibility and cost effectiveness of the solution.

Created a automatic backup shell script which automatically backup critical system files & Websites that changes every day, backup files saved as backup filename current date & time.

Installed Qmail on bharatnet.com mail server.

Installed iptraf for monitoring traffic on network & sniff it for logging packets going outside from networks on well known ports(smtp,pop3,http,samba) and others network security Monitoring and logging.

Implemented samba server in our organization, which uses Linux authentication, every user Saves data in Linux through samba shares & installed NFS for replicating user data on other server for backup & fail over support.

Implemented packet filtering firewall-using ipchains with masquerading & squid proxy.

NIIT Limited

(Network Administrator) November 1998 - February 2000

Worked in NIIT Computer Drome as a network Administrator at NIIT Connaght Place.

Responsibilities:

Installation of Windows NT Server 4.0, DHCP Server print server,

Implementation of Internet/Intranet with IIS 4.0, Installation of Techedge Web Sites Package and Remote Access Service at the center.

Completed Graduation B.Com (Pass) From Delhi University.

Completed GNIIT (Two year professional Diploma in Software Technology and System Management) from NIIT, Delhi.

Microsoft Certified Systems Engineer, Microsoft Certified Professional

Installing, Configuring and Administering Microsoft Windows 2000 Professional.

Installing, Configuring and Administering Microsoft Windows 2000 Server.

Implementing and Administering a Microsoft Windows 2000 Network Infrastructure.

Implementing and Administering Microsoft Windows 2000 Network Directory Services.

Designing a Microsoft Windows 2000 Directory Services Infrastructure.

Designing Security Microsoft Windows 2000 Network.

Designing a Microsoft Windows 2000 Network Infrastructure.