Engineer Security

CIJO SAJ

*** *** **** ***, *******, NY *****, adbipj@r.postjobfree.com, Cell: 845-***-****

CAREER OBJECTIVE:

Looking forward for a position that will enhance my skills, providing me ample scope for growth and yet contribute to the organization’s goals by effectively using the conceptual skills and knowledge gained through my professional education and experience.

EXPERIENCE SUMMARY:

8+ years of working experience in Linux/Unix servers, installing and configuring web server, mail server, troubleshooting, monitoring, server security, server maintenance, backups and ticket support. Completed RHCE certification: 6+ years of experience in various flavors of Linux distro (RHEL 5,6,7 and installed 8)

I am a green-card holder, legally authorized to work in the United States.

TECHNICAL SKILLS:

Skilled in installation, configuration and administration of different Linux distros (Red hat/ Fedora/ Centos/ Debian). Experienced with a broad range of software, utilities and protocols, including the following

Experience of installing BigData Hadoop and managing cluster with more than 100+ nodes.

Experience with Linux internals and virtual machines (VMware, OpenVZ, Vmware, Xen)

Package management using YUM & RPM and promoting to lifecycle using Redhat Satellite

OS and firmware Upgrades, kernel patches and performance tuning on Unix/Linux systems.

Troubleshooting problems related to server configurations and RAID setup.

File system management and tuning on Linux servers using Logical Volume Manager (LVM).

Experience with AWS, Azure, and provisioning and maintaining instances.

Backup - tar, dump, configuring remote backups, R1soft, Amazon S3

Experience with application build automation(CI/CD) tools such as Ansible, Docker, Jenkins, GIT

Knowledge in Bash scripting and automate day to day tasks.

WWW Servers – Apache, Nginx & LiteSpeed

Networking - Telnet, FTP, HTTP, NFS, DNS, ifconfig, route, netstat

Installed and configured monitoring tools like Nagios, Zabbix, Munin & Zenoss

Mail Servers – Exim, Qmail, PostFix

Server Admin Tools – cPanel / WHM, Plesk, InterWorx

Firewall and Server Security – Configuring and Administering SSH, SSL, Sftp, Iptables, csf, apf

Database Servers – MySQL, PostgreSQL, MariaDB

EDUCATION:

Bachelors in Technology in Electronics and Communication-

Toc H Institute of Science & Technology, India (2005-2009)

CERTIFICATIONS:

Red Hat Certified Engineer (RHCE, RHCSA) in Enterprise Linux 5, Certificate Number: 100-134-014

Verify this certificate number at https://www.redhat.com/training/certification/verify

cPanel & WHM Administrator Certification (CWA), Certificate Number: 7e68-4317-9bf1-1bf5

Verify this certificate number at https://university.cpanel.net/

PROFESSIONAL EXPERIENCE:

System Analyst at The NPD Group, Inc.

From April 2018- present

NPD helps retailers, manufacturers, financial analysts, and the public sector measure performance, predict future performance, improve marketing and product development, and identify business and consumer trends and market opportunities.

Responsible for implementation and ongoing administration of Hadoop infrastructure.

Managing SAS, NAS and Ab Initio cluster deployment and administer Veritas file system.

Build and deploy physical (DELL, HP, Cisco) and virtual machines for various projects and configure them accordingly.

Work with various department and analyze/troubleshoot issues via WebEx and tickets.

Aligning with the systems engineering team to propose and deploy new hardware and software environments required for Hadoop and to expand existing environments.

Cluster maintenance as well as creation and removal of nodes using tools like Zabbix, Nagios, Dell Open Manage and other tools.

Performance tuning of Hadoop clusters and hardening them as per standards.

Screen Hadoop cluster job performances and co-ordinate for upgrade.

Promote machines to latest lifecycle using Redhat Satellite and patch them as per vulnerability reports.

Linux System Administrator at VIPoint Solutions Pvt Ltd, India

(www.vipointsolutions.net) (Giving remote technical support to US based client in Michigan)

From May 2011 – April 2018

VIPoint Solution provides 24x7 technical support for outsourced clients. It includes variety of clients with different SLA and priority with variety of technical problems.

Managing and monitoring Clusters, VPSs, Dedicated servers and Virtualization servers (running Parallels Virtualization technology) of US based client.

Installation, Configuration, Administration and Performance tuning of Redhat, CentOS, Ubuntu servers and day-to-day system admin tasks.

Deployed and migrated virtual systems into Amazon EC2 instances for a development environment.

Focused on automation and integration using CI/CD tools like Ansible, Docker and Jenkins.

Periodic verification of RAID status and backups stored in Amazon S3, R1soft.

Handling ticketing system for troubleshooting server level issues and performing 3rd party installations.

Monitoring of server activity and troubleshooting system and network problems and diagnosing and solving hardware or software faults.

Install new /rebuild existing servers and configure hardware, peripherals, services, storage, etc. in accordance with standards and project/operational requirements.

Conducted Linux System security and auditing and did Performance Monitoring and Tuning.

Review server logs for audit and maintain maximum security standards for servers using Splunk.

Applying operating system updates, and configuration changes for server hardening.

Installed and maintained various network services and related computing peripherals.

Previous Employer: Linux System Administrator at Armia Systems Pvt Ltd, Infopark, India

(www.supportpro.com & www.armia.com)

From Dec 2009 – May 2011

SupportPRO (www.supportpro.com) is the division of Armia Systems Inc. which provide technical support services and Remote Server Administration to Web hosting companies, ISP’s, Web development companies and Enterprises around the Globe.

Involved in remote system administration of Linux/Unix and Windows servers for US based clients.

Reporting, tracking customer effecting issues through customer help-desk using Ticketing Systems.

Server Setup: Installing, configuring of non-control panel servers, cPanel/WHM, Plesk servers.

Web Server: Apache web server configuration and setup. Compiling web-server with PHP using automated and manual methods. Setup web server security including mod_security, user authentication

Mail Server: Setup and configure postfix, sendmail and exim mail servers.

Setup Spam assassin, clamd antivirus scanner for mail server.

Prevent mail abuse using antivirus exim.

DNS server: Setup and configured DNS server. Administer DNS server and setup DNS clustering in cPanel/WHM and Plesk servers.

References: Available upon Request.

Contact this candidate