Krishna Chaitanya Bezavada

Project / Client Name / Location – Vyaire / Vyaire Medicals / USA & GERMANY

Duration: Dec 2018 to Till DateTechnologies - AWS, Unix

Highlights:

• Played key role in migrating all servers from Azure/ESXi/On-Prem to AWS.
• Providing fixes to the issues identified proactively related to the server configurations with the help of scripts enable in advance with due diligence.
• Upgraded all critical legacy servers to the latest from path to path by not disturbing any data as per client specific.
• Migrated AWS Landing Zone to AWS Control Tower.
• Managed security groups for EC2 Servers, NACL restrictions for subnet and routing.
• Created IAM users, Roles, Policies to control access to AWS resources
• Design and create highly scalable, highly available, fault tolerant, highly secured, distributed infrastructure (IAAS) using AWS EC2 instances, EBS Snapshot, S3, Elastic Load Balancer, Auto Scaling, Cloud Watch, Cloud Formation, RDS, KMS, Lambda, ACM, Route 53, SNS, etc.
• Implement a monitoring process of cloud environment and notification system using a unified cloud watch through SSM and SNS.
• Creating and Designing highly secured Virtual Private Cloud (VPC), Transit Gateways, AWS Direct Connect, Site-Site VPN.
• Failover and Backup - Write cloud-formation templates and backup scripts/jobs to take timely backup of data and infrastructure.
• Capable of deploying automation infrastructure by utilizing the AWS Cloud Formation technique to reduce the time required for production.
• Proficient in developing Continuous Integration/ Delivery pipelines.
• Automation and DevOps - Doing lot of automation of the tasks which are done manually and keep updating them. Managing on CI-CD pipelines to provide quick releases.
• Focused on automation integration, monitoring and configuration management.
• Reviewed technical documents and collaborated on customized design to achieve process improvement and compliance.

Project / Client Name / Location – Macquarie / Macquarie Bank / Australia

Duration: Apr 2018 to Nov 2018Technologies - AWS, Unix, Pega Administration, Splunk, AppDynamics, JBoss & Tomcat

Highlights:

• Worked on internally developed tool (Arturo) which integrated with AWS and was utilized to deploy the entire stack with just one button click which uses Jenkins and BitBucket in the background.
• Working day to day with AWS services like EC2, LoadBalancer, CloudFormation, Auto scaling, CloudFront, CloudWatch, S3, VPC, AWS Inspector, Route 53, Lambada, AWS Systems Manager, IAM etc...
• Integrated Salesforce to Pega by implementing mutual SSL authentication from scratch.
• Creating, Handling and renewing the certificates (Server, Client and Mutual) through JAVA Keystore and OpenSSL.
• Working on Cost Optimization using AWS services.
• Configuring the required infrastructure using AWS services.
• Unix Administration, Patch Management, Vulnerabilities Fixing.
• Application configuration and Support.
• Application configuration, SSL configurations, Maintenance and Troubleshooting issues with Tomcat.
• Handling critical issues, RCA etc...
• Working experience with various monitoring tools like Nagios, Splunk, App Dynamics, Zabbix, Zenos, Cacti.
• Requirement Analysis, Gap findings, Health check, testing, coordinating with Dev team.
• Troubleshooting issues with integrated technologies like Tomcat, Unix OS, AWS.
• Effective communication to manage customers’ expectations
• Working on the various CHM process (Service Now/SM9/Remedy) in terms of daily work.
• Pega Administration

Project / Client Name / Location – Fluor / Fluor Corporations / USA

Duration: July 2015 to Mar 2018Technologies - AWS, Unix

Highlights:

• Working day to day with AWS services like EC2, CloudFormation, CloudWatch, S3, VPC, AWS Systems Manager, IAM, EBS snapshots, AMI, IAM, CloudWatch, Cloud Trail, ELB, etc
• Working on building RHEL and SUSE servers in ESXi and On-Prem.
• Implementing and managing multipath.
• Filesystem Administration, setting up Disk Quota, configuring backup solutions.
• Managing RPM packages using Red Hat Package Management tools like YUM and RPM.
• Managed Disks and File systems using LVM on Linux.
• Troubleshooting log-on problems, boot process and printing, Day–to-Day issues.
• Good knowledge of Shell Scripting.
• Mod_jk Load Balancer (Apache Tomcat).
• Monitoring tools like Zenoss, Nagios, SPLUNK & AppDynamics.
• Configuring and administrating Linux servers like FTP, NTP, DHCP, DNS, and APACHE web server.
• Configuring and implementing mail servers like Send Mail, Post-fix with Dovecot & ZIMBRA.
• Experience of pushing patches through BigFix IEM for patching the server automatically on a timely basis.
• Panzura cloud support.
• Experience on SuSE manager (Bootstrapping, version Upgrades & Patching from a web console).
• Experience with SuSE Linux.
• Integrating SuSE & RHEL servers to Windows AD using SSO.
• Providing the DPP for reducing the ticket alert count.
• HPILO configurations using HPONCFG

Project / Client Name / Location – Discovery / Discovery ASR / USA

Duration: Mar 2015 to Jun 2015Technologies - Unix

Highlights:

• FTP integration with MySQL for logical database.
• Configuring and implementing open Red Hat cluster/glusterfs/drbd HA (Heart Beat) on storage level.
• Configuring and implementing MySQL HA (Heart Beat Cluster).
• Configuring and implementing rsyslog with log-analyzer.
• ELK Stack with log-stash and forwarder.
• Configuring and implementing direct routing load balancer.
• Experience on the RFS and BAU tasks.
• Knowledge on CITRIX and VMware.
• Configuring and administrating of SAMBA4, 389 Active Directories.
• Performing User Administrative activities, network related activities including troubleshooting and application support.
• Configuring local storage using partitions and logical volumes.

Project / Client Name / Location – Shared Model / numerous Clients

Duration: June 2013 to Jan 2015Technologies - Unix

Highlights:

• Management, Installation and configuration of LINUX Servers and Microsoft Products such as MS Windows Server 2003/2008.
• Managed Disks and File systems using LVM on Linux.
• Mirrors and RAID 0, 1 and 5 levels.
• Linux server administration and troubleshooting.
• Configuring and implementing Open VPN.
• Configuring and implementing SAMBA integration with Windows AD using winbind and SSSD.
• Configuring and implementing Site – Site VPN through IPSEC.
• VOIP, Astra and Poly-COM device setup.
• Configuring and implementing OTRS.
• Handling ISMS tasks and involved into Assets documentations.
• Generating ISMS objective reports on quarter wise.
• Have an awareness of the Dan-law Server.
• Open Firewall Servers like Untangle, Squid for blocking sites and bandwidth controlling.
• Provide Root Cause Analysis for recurring problems.
• TCP/IP Configuration Assigning IP’s, Gateways, Name servers, net masks, hostnames, domain Names etc., for individual machines and setting up the network.

Project / Client Name / Location – REPD / Indian Railways / India

Duration: July 2011 to Jun 2013Technologies - Unix, Pega Administration, Splunk, AppDynamics, JBoss & Tomcat

Highlights:

• Hands on experience on RHEL 6 which involves installing and configuring multiple user accounts, LVM, SAMBA, NFS, NIS, NTP, APACHE, FTP.
• Experience in installation, configuration, administration and maintenance of most of the versions of Linux and Linux based servers
• Configuring NFS and Samba for Sharing of the files between multiple Operating Systems.
• Basic Knowledge of Shell scripting.
• TCP/IP Configuration Assigning IP’s, Gateways, Name servers, net masks, hostnames, domain Names etc., for individual machines and setting up the network.
• Working experience with various monitoring tools like Nagios, Zenos.
• Operate running systems, including booting into different run levels, identifying processes, starting and stopping virtual machines, and controlling services.
• Adding, removing, or updating user account information, resetting passwords, etc..,
• Experience on the RFS and BAU tasks.
• Confidence in handling any other challenges that occur on a real-time basis.
• Responsible for providing the desktop system administration, including monitoring and performing system start-ups and shutdowns.