Challa Shekhar

(804)-325-1489

Challa.tek@gmail.com

Professional Summary:

·  About 8 years of experience in the areas of Systems Administration, Cloud Computing, Database Administration.

·  Administration and Architect of public and private cloud platforms (AWS).

·  Hands on Experience with All the AWS components like EC2, ELB, Auto Scaling, launch Configurations, S3, Glacier, Lifecycle rules for storage, VPC, Route 53, Cloud watch, Cloud Trial, RedShift, Volume and Snapshot management, SNS, IAM and Roles.

·  Administration of Redhat Linux, Cent OS, Windows Server 2008 and VMware Environments and SQL Server.

·  Experience in writing and Distributing modules to puppet agents.

·  Creating a centralized bucket for backups in the puppet setup.

·  Experience in using inline-templates in the puppet environment.

·  Hands on experience with Chef and Ops work in AWS cloud environment.

·  Hands on experience with compilation on Recipes, Cookbooks, Curry in the Chef AWS Cloud Environment.

·  Hands on technical architect with experience designing and delivering highly scalable technology platforms with a bias for Content Management Solutions. 

·  Experience in using tools like Jiira for ticketing.

·  Working Knowledge of Ansible, salt.

·  Hands on experience in using monitoring tools like Nagios.

·  DEVOPS experience with puppet, chef and AWS.

·  Designing and distribution of Data across all the nodes and Clusters on different availability zones in AWS Redshift.

·  Hands on Experience with Microsoft SQL Server, SSIS, SSRS, Windows Server.

·  Migrated data to AWS Redshift.

·  Building a cube, Deploying a Cube in a data warehouse.

·  Data Loading in to the AWS redshift using the S3 data pipeline.

·  Best Practices in designing and Optimizing tables in AWS Redshift.

·  Experience in CI and CD with Jenkins.

·  Monitoring Tool experience with Nagios.

·  Defining Process & Ensuring process adherence to ensure best quality of service.

·  Excellent communication skills, team membership and relationship management skills.

·  Experience in administering Linux. Experience in Installation, Configuration, Backup, Recovery, Maintenance, Support.

·  Experience in Installing, upgrading and configuring Redhat Linux 4.x, 5.x and 6.x using Kickstart Servers and Interactive Installation.

·  Experience in Creation and managing user accounts, security, rights, disk space, quotas and process monitoring in Redhat Linux.

·  Installation and upgradation of Packages and Patches configuration management, version control,

·  service pack & reviewing connectivity issue regarding security problem.

·  Experience in configuration of NIS, NIS+, DNS, DHCP, NFS, SAMBA, FTP, Remote Access Protocol, security management and Security trouble shooting skills.

·  Experience in Installation of SQL Server, MYSQL and Postgre SQL.

·  Experience in writing Bash shell scripts to automate the administrative tasks and management using cron and at jobs.

·  Added Users and Roles to the Linux machine using Bash Shell.

·  Configured the Cron Tab for job automation in Bash.

·  Experience in Installing Firmware Upgrades, kernel patches, system configuration, performance tuning on Unix/Linux systems.

·  Has experience in 24*7 Production Support and in mentoring junior developers.

·  Have experience in all phases of software development life cycle including project management, functional requirements definition, technical design, development, testing, quality assurance, system certification, systems implementation and system validation.

·  Develop or modify SQL queries and stored procedures to meet business requirements and achieve desired performance

·  Strong working knowledge of Database Administration and Windows Server Administration.

·  Experience in working with ITIL Methodologies, Agile/SCRUM based product development teams, collect database requirements and provide solutions and recommendations for new schema, infrastructure or architecture.

Technical Skills:

 

Cloud Technologies	Amazon Web Services: EC2, S3, ELB, Auto scaling Servers, Glacier, Storage Lifecycle rules, Elastic Beanstalk, Cloud Front, Functional knowledge of Import/Export Snowball, Elastic Cache, RDS, Redshift, VPC, Direct Connect, Route 53, Cloud watch, Cloud trail, ops work, IAM &Roles, SNS subscription service, Dynamo DB, SNS, SQS, S3
Operating Systems	Redhat Linux 4/5/6/7, Windows servers [2003, 2008,2008 R2, 2012, 2012R2].
Languages	C, C#, T-SQL, PL/SQL, JBOSS
Databases	SQL SERVER, MY SQL, Post Gre SQL, Dynamo DB, Aurora DB
Technologies	Chef, Puppet, Linux, AWS, Ant, Maven, SQL Server, MYSQL, Postgre SQL

 

Education:

Bachelor of computers science from JNTU, India. (2008)

Executive MBA, University of Central Missouri, MO. (2014)

 

PROFESSIONAL EXPERIENCE

American Driving Records, CA.                                                                                                                    Dec 14 – Mar 16

Responsibilities:

·  Hands on experience in Amazon Web Services (AWS) provisioning and good knowledge of AWS services like EC2, S3, Glacier, ELB (Load Balancers), RDS, SNS, SWF, and EBS etc.

·  Application deployment and data migration on AWS Redshift.

·  Using Chef to maintain the configuration.

·  Hands on Experience with WordPress and have a good knowledge on Content Management Systems

·  Hands on Experience with ETL tools such as snap logic, Using S3 Data pipeline to move data to AWS Redshift

·  Hands on experience in monitoring EC2 instances using Nagios

·  Configured Nagios to monitor EC2 linux instances with puppet automation

·  Configured Apache webserver in the Linux AWS Cloud environment using Puppet automation

·  Extensive knowledge on writing and deploying modules in puppet

·  Hands on Experience in AWS Cloud in various AWS Services such as Redshift Cluster, Route 53 Domain configuration.

·  Configured Elastic Load Balancers with EC2 Auto scaling groups

·  Experience in Performance Tuning and Query Optimization in AWS Redshift 

·  Configured and monitored distributed and multi-platform servers using Nagios

·  Configured S3 to host static web content

·  Configured S3 versioning and lifecycle policies to and backup files and archive files in Glacier

·  Created monitors, alarms and notifications for EC2 hosts using Cloud watch

·  Utilized Cloud watch to monitor resources such as EC2, CPU memory, Amazon to design high availability applications on AWS across availability zones.

·  Ability to design applications on AWS taking advantage of disaster recovery

·  Performed hands on routing and switching 

·  Expert Knowledge in Bash Shell Scripting, Automation of Cron Jobs

·  Hands on experience Configuring Access Lists for inbound and outbound traffic RDS DB services, Dynamo DB tables, EBS volumes; to set alarms for notification or automated actions; and to monitor logs for a better understanding and operation of the system availability regions

·  Design guidelines with customers & basic level of management testing of network system

·  Configured AWS Identity and Access Management (IAM) Groups and Users for improved login authentication.

·  Provided policies to groups using policy generator and set different permissions based on the requirement along with providing ARN (Amazon Resource Name).

·  Migrated on premises Databases to AWS.

Environment: Environment - AWS (EC2, VPC, ELB, S3, RDS, Cloud Trail and Route 53), VDI, Linux, Git version Control, VPC, AWS EC2, S3, Route53, EBS, IAM, ELB, Cloud watch, Cloud Formation, AWS CLI, AWS Auto Scaling.

 

 

YRC Freight, KS                                                                                                                                                   Apr 12 – Dec 14

Responsibilities:

       •    Installed, deployed, and upgraded AWS Cloud-based servers and services in accordance with Federal         

             standards and project guidelines 

·  Built and Configured Linux Servers in AWS Cloud Environment 

·  Created and hardened an Amazon Machine Image (AMI) utilizing Centre for Internet Security (CIS) benchmarks to be used.

·  Updated the AMI with the latest patches 

·  Utilized AWS to set up Virtual Private Clouds (VPCs) for Management, Production and Testing environments with customer operational requirements and parameters (e.g., internet gateway, subnets, elastic IP, and Security Groups). 

·  Utilized other AWS Cloud Computing platforms and its many dimensions of scalability including but not limited to: VPC, EC2, ELB, IAM, SQS, S3, auto scaling architectures, using EBS under high I/O requirements, custom monitoring metrics/analysis/alarms via Cloud Watch, the AWS CLI, to meet client's needs and project requirements. 

·  Repair and recover from system or application failures. 

·  Develop and maintain installation and configuration procedures. 

·  Investigate and troubleshoot issues per request from various constituencies. 

·  Experienced in branching, tagging and maintaining the version across the environments using SCM tool like GIT.

·  Performed all Linux operating system, disk management and patch management configurations, on Linux instances in AWS.

 

Environment: EC2, S3, EBS, Elastic Load balancer (ELB), auto scaling groups, VPC, IAM, Cloud Watch, Glacier, GIT version control, VMware, RHEL 5.x/6.x, Nagios, Puppet, Maven, Shell Scripting, python Apache Web Server, IBM Application Server.

 

Fidelity Bank, GA                                                                                                                                        Sep 10 – Mar 12

Responsibilities:

·  Installation and configuration of Linux and HP x86 servers.

·  Installed Application Agents on 3500 Virtual/Physical servers Linux VM’s.       

·  Installed and configured RHEL 4.x/5.x for production, staging and test environments.

·  Implemented Virtualization using VMware. Installed VMware ESX/ESXi server on Cisco/HP/Dell Servers.

·  Involved in troubleshooting of UNIX technical problems received through e-mail and Clarify Ticketing Tool, Backup solutions according to the SOP & SLA.  

·  Generating reports, Preparing Quality Documentation.

·  Setup of full networking services and protocols on Solaris, including NIS/NFS, DNS, SSH, SFTP, DHCP, TCP/IP, applications, and print servers to insure optimal networking, application, and printing functionality.

·  Administered, maintained Red Hat 3.0, 4.0, 5.0 AS, ES, Troubleshooting Hardware, and Operating System.

·  Application & Network problems and performance issues; deployed latest patches for Linux and Application servers.

·  Configuration of Hardware and Software RAID. Disk replacement and File system recovery.

·  Installing and setting up Oracle9i on Linux for the development team.

·  Installation of software packages and checking the integrity of the installed packages. Installed different RPM Linux 4.0/5.0/6.0.

·  Production support of PHP, My SQL, Apache HTTPD installation, configuration, management and troubleshooting.

·  Administered Linux servers for several functions including managing Apache server, mail.

·  Integrating UNIX file systems using packages like SAMBA. Setting up printers on UNIX / NT machines to work seamlessly across platforms.

·  Worked with different hardware and software vendors to troubleshoot the hardware and software problems.

·  Responsible for backup and recovery of servers. Documented backup policies and procedures for backup routines schedules and restore policies.

·  Managing cron jobs, at Jobs, batch processing and job scheduling.

·  Support and detailed troubleshooting of linux in a 24 x 7 Environment.

 

Aricent Technologies, Bangalore, India                                                                                   Jun 08 – Aug 10

Responsibilities:

·                       Involved in the Migration of Databases from SQL Server 2000 to SQL Server 2005.

·                       Provide 24 X 7 dedicated support to all Production, QA & Development MS SQL Server Environments.

·                       Prepared Documentation for the Disaster Recovery plan.

·                       Managing Databases spread across multiple servers in Production, Development, staging & testing environments.

·                       Responsible for installing and maintaining SQL 2008 R2 Cluster environment and Performed migrations from SQL server 2005 to SQL server 2008R2/2012.

·                       Applying existing servers with relevant Service Packs, Hotfixes and any Critical Security Updates released by Microsoft.

·                       Experience in configuring report manager for creating report subscriptions, snapshots, and caching and optimized Performance and Capacity planning of Various Data processes related to Reports.

·                       Created Database Management Warehouse.

·                       Uploaded Reports on to Report manager and Organized them based on Business Rules.

·                       Network troubleshooting in complex environments, VLAN configurations.

·                       Assist in development, improvement and maintenance of imaging, deployment solution.

·                       Administer multiple disjoint Active Directory Forests, Domains, DHCP, DNS and various other Infrastructure services. Trust relationships setup, dc promo and decommission of AD.

·                       Updates, patching and software installations via group policies (GPO)

·                       Racking and patching equipment as needed.

·                       VMware mixed mode support environment customer test environment.

·                       Configuration of active directory in Windows operating system. 

·                       Experienced working with Microsoft Excel, Word and power point

 

Environment:

SQL Server 2000/2005, T-SQL, Excel, Advanced Windows 2003 Server & PVCS Version Control Management, LINUX, Oracle, Windows server, MySQL, Post gre SQL, SQL Server 2005/2008/2008R2/2012, Windows 2008 server, Windows Server 2008(x64).