Sushil Dahal

Phone 617-***-****)

Email: ad1s14@r.postjobfree.com

Cupertino, CA

Technical: Summary

• Strong background in Linux/Unix, Mac, and Windows fundamentals.

• Expertise with the install/upgrade of new Linux OS releases, configure, upgrade, patch, and secure servers along with performance tuning, and resource optimization.

• Experience in successfully migrating OnPrem fleet to AWS cloud.

• Experience in Gradle tooling both to support developers as well as ensure a properly functional CI/CD system

• Experience in administrating middleware applications which include Tomcat, WebLogic, and JBoss.

• Create, maintain and improve build scripts by working on foundational issues for mobile and other devices/platform

• Knowledge of CI/CD using various tools ( Gradle, Ansible, Jenkins, Git, Code commit, CodeDeploy ).

• Experienced in AWS products (RDS, DynamoDB, Route 53, s3, VPC, EC2, Cloud Formation, API Gateway, Lambda, Elastic Memcache, code commit)

• Strong background in monitoring system access and monitoring servers by using tools like CloudWatch, Check_Mk(Nagios), OpMan, AppMan, Sensu, Zenoss, Graphite, PagerDuty, Mysql Enterprise Monitor, Wavefront, SignalFx, Splunk, Prometheus, Graphana and custom script

• Experience working with virtualization platforms such as VMware, OpenStack, or other hypervisor technologies, and container based technologies such as Docker or Kubernetes.

• Experienced in Providing 24/7 On-Call Production and Customer Support including troubleshooting problems.

• Experienced in analyzing and resolve issues related to EDA (EasyEDA) application for PCP designing.

• Experience maintaining health and uptime of servers/containers/services in OnPrem Datacenter, AWS, and GCP cloud environments.

• Experience with enterprise-class storage including SCSI, RAID, and Fiber-Channel technologies.

• Excellent client relationship skills and completion of tasks effectively and efficiently where customer service and technical skills are demanded as well as the ability to communicate effectively with all levels of management and the client community.

Skill Summary

Operating Systems:

Linux (RedHat/centos 4.x/5.x/6.x/7.x, ubuntu12/14,Amazon ec2 Linux,VMware fusion,Windows2000,2003r2/NT4.0,

Windows 95/98 /XP, VMware ESX 4.x/5.x, Kubernetes

Networking:

TCP/IP, NIS, NFS, DNS, DHCP, Cisco Routers/Switches, WAN, SMTP, LAN, FTP/TFTP

Applications:

NFS, Samba,, Veritas, NetBackup, Nessus,

Tools

Jenkins, Git, CI/CD, Puppet Docker, Terraform, Cloudformation, Ansible, SQL, NoSQL, Bash, Python, Kafka, SignalFx, WaveFront, Cloudwatch, Nagios, Kubernetes

Client: Box

Role: Unix/Linux System Engineer

Duration: April 2021 – Sept 2023

Responsibilities:

• Responsible for the health and uptime of servers/containers/services in OnPrem Datacenter, AWS, and GCP cloud environments.

• Expertise with the install/upgrade of new Linux OS releases, configure, upgrade, patch, and secure servers along with performance tuning that include utilizing Ansible.

• Create and manage a dashboard for monitoring, that includes Cloud Watch, Sensu, Wavefront, Splunk, etc

• Experience in managing Kubernetes, including creating, monitoring, and managing multiple Kubernetes clusters for multi-region.

• Creating and managing of CI/CD pipelines using various tools (Ansible, Jenkins, Git, Code commit, CodeDeploy ).

• Operated within multiple application(install,configure, update..etc ) in a Linux platform to provide 24/7 services.

• Perform impact assessment for site issues / Incidents. Troubleshoot and if necessary escalate/engage the responsible parties to mitigate and resolve the impact.

• Wrote automation script for reoccurring tasks utilizing Shell and python.

• Experience working with a version control system with a distributed workflow, that includes, git, code commit, SVN.

• Create and Set users, groups, and escalation policies in Pagerduty.

• Troubleshooting web protocols (TCP/IP, HTTP, SSL, and DNS)

• Experience in troubleshooting and managing LDAP. Creating users and groups, setting up proper permission and password policy.

• Network and system troubleshooting using ‘'traceroute', 'netstat', 'ifconfig' Wireshark ‘tcpdump’, Top, Sar, vmstat, and many more.

• Experienced in creating and escalating ticketing systems (Jira, SFDC, ServiceNow).

• Creating a runbook for technical troubleshooting as Document team processes and policies for future help for smooth operation.

• Monitoring Servers and Network devices using Splunk, AWS CloudWatch, Wavefront and SignalFx).

Client: TCS/PayPal

Role: Linux System admin / Devops

Duration: April 2018 – March, 2021

Responsibilities:

• Responsible for the health and uptime of servers/services(a couple hundred thousand VM's)

• Responsible for implementing CI/CD that includes Jenkins open-source automation server to deploy AWS CodeBuild artifacts with AWS CodeDeploy, creating a functioning CI/CD pipeline.

• Creating AWS infrastructure using Terraform/cloud formation template.

• Working heavily on kernel patching for more than 200K VMs in a weekly cycle using the in-house tools.

• Taking a lead on install/upgrade of new Linux OS releases, configure, upgrade, patch, and secure servers along with performance tuning with the help of puppet.

• Experience working with a version control system with a distributed workflow, that includes, git, code commit, SVN.

• Working with developers to develop in-house monitoring tools for VM and infrastructure.

• Operated within multiple application(install,configure, update..etc ) in a Linux platform to provide 24/7 services.

• Troubleshooting web protocols (TCP/IP, HTTP, SSL, and DNS)

• Network and system troubleshooting using ‘'traceroute', 'netstat', 'ifconfig' Wireshark ‘tcpdump’, Top, Sar, vmstat and many more.

• Experienced in creating and escalating ticketing systems (Jira, SFDC, ServiceNow) and documenting things on confluence as needed.

• Wrote Shell Scripts and ran on cron jobs and deployment scripts for various reasons .(e.g. backup, notification, Automation).

• Monitoring Servers and Network devices using Splunk, AWS CloudWatch, Check_Mk(Nagios), OpMan. AppMan, Mysql Enterprise Monitor tool.

• Set up auto-deployment using code-deploy integrated with Jenkins and AWS.

Client: Nest/Google, Palo Alto, CA

Role: NOC III / Sys Admin

Duration: April 2017 – April 2018

Responsibilities:

• Responsible for the health and uptime of servers/services in AWS and GCP cloud environments.

• Responsible for software deployment in a regular cycle.

• Designed, implemented, and documented a proof-of-concept monitoring solution using industry standard and open-source monitoring frameworks.

• Wrote Shell scripts to automate workflows and routine maintenance tasks.

• Migrated AWS Environment from AWS Classic to VPC.

• Operated within a Linux, Apache, and Mysql architecture to provide 24/7 services.

• Provide technical assistance to clients to resolve the issue

.

• Install/upgrade of new Linux OS releases, configure, upgrade, patch, and secure servers along with performance tuning, and resource optimization.

• Troubleshooting web protocols (TCP/IP, HTTP, SSL, and DNS)

• Network troubleshooting using ‘'traceroute', 'netstat', 'ifconfig' wireshark' ‘tcpdump’, etc

• Configured sudo and IAM policies to set up proper privilege for the users .

Client: Western Digital, Mountain View, CA

Role: DevOps/Linux Engineer

Duration: Sept 2014 – April 2017

Responsibilities:

• Migrated on-premise production data center to AWS Cloud.

• Experienced in integrating AWS code deployment to Jenkins along with AWS code commit, git, and stash for automatic deployment.

• Experience managing windows Active Directory / Domain Controller

• Working experience with configuration management tool (mostly with salt-stack)

• Design, integration, and management of Amazon Web Services cloud solutions. Provisioning of EC2 instances, built via cloud formation. VPC construction, Amazon RDS, Security Group policies, IAM, Route 53, CloudFormation, and S3.

• Managed VMware fusion running on Mac server, VMware Vcenter 5.5 to support build/Dev/Release team.

• Experience with puppets, chef, and ansible.

• Implemented RAID 1 and RAID 5 on mission-critical ESXI servers.

• Experienced in hot and cold Vmotion migration on Vcenter.

• Support of NAS Devices(WDmycloud) in order to make communication from clients' devices to NAS.

• Experienced in storage management: SAN(Netapp and emc clariion cx4) and NAS(wdcloud) for VMware environment.

• Configured SMTP using Postfix and Sendmail to relay the email.

• Experienced in hot and cold Vmotion migration on Vcenter.

• Wrote Shell Scripts and ran on cron jobs and deployment scripts for various reasons .(e.g. backup, notification, Automation).

• Monitoring Servers and Network devices using Splunk, AWS CloudWatch, Check_Mk(Nagios), OpMan. AppMan, Mysql Enterprise Monitor tool.

• Experienced in analyzing and resolve issues related to EDA (EasyEDA) application for pcp designing.

• Created and configured NTP servers and clients for various accounts.

• Experienced in creating and escalating ticketing systems (Jira, SOPR, ServiceNow) and documenting things on confluence as needed.

• Troubleshooting issues regarding user management, system updates, and disk & storage management.

• Production support of Apache including installation, configuration, management, and troubleshooting.

• Performed troubleshooting of CPU bottlenecks, and memory bottlenecks and gave suggestions on performance improvements.

Wrote Technical documentation for various projects

Client: FedEx,Collierville, TN

Role: Unix/Linux System Engineer

Duration: August 2013 – August 2014

• Experienced in EMC SAN and NAS disk for VMware and Linux servers and also in multipathing using EMC power path.

• Supported migration of applications from different versions of OS to Redhat and also solved dependencies issues.

• Experienced in configuring RAIDs from LUN and assigning them to servers.

• Performed Account Management Tasks (Add/Remove Accounts) with some request queue activities.

• Executed backup/restore activities under direction like backup client install, troubleshooting, restore the backup using NetBackup

• Provided daily monitoring (7x24x365) of hardware, OS, critical server processes, and other system software.

• Experience in installation and configuration of LAMP.

• Experience in configurations of HP blade servers.

• Activities included user administration; startup and shutdown scripts; crontabs, file system maintenance, backup scripting, and automation using Perl, and shell scripting (bash, ksh) for Red Hat Linux and Solaris systems.

• Implementation of VMware Infrastructure for Windows, SLES 11 & Linux Red hat 5.0 with VMware ESX 4.x,3.5, Virtual Center 2.5 and administered the VMs with VI client.

• Experience in installing, integrating, tuning, and troubleshooting Apache, and Tomcat application server

• Perform Server decommissioning of servers.

• Experience in Install and configuring SSH to enable secure access to the server

• Experience in RT and ITSM(follow change request implementation procedures)

• Experience booting systems into different run levels for troubleshooting and system maintenance

• Experience in Modification of the Linux kernel to add tracing probes for the Config access tool.

• Strong knowledge in troubleshooting.

• Experience in Shell scripting (ksh, bash) to automate system administration jobs.

Certification:

Redhat Certified Engineer(RHCE)

Redhat Certified System Administrator(RHCSA)

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