Sudhan Kumar

Experience

• 

  Wipro

  Jul 2007 - Jun 2013

  Solaris System Admin

  Primary Solaris Admin, Providing remote management and troubleshooting.Secondary HP -UX Providing L1 support

• 

  Mphasis

  Jun 2013 - Aug 2017

  SME Support on Unix/Solairs, Cluster and Automation. • Provided SME Support for UNIX Servers, Mostly on Solaris/Linux, and Working on all Critical task and escalated issues. • Validating Technical Plans prepared by L1/2/3 related to changes and other task, working on RCA’s, Providing SOPs, risk assessments, etc. • Also working on end to end build task as per standards on Solaris 10/11 and RHEL 6 /7 (Mostly VM for RHEL)• Major task related to LDOMs, which includes Building Primary and IO domain, Guest domain creation, adding LUNs to Guest domains and extending FS inside it, Firmware upgrade, and so on.• Installation, Configuration, Decommission and Administration of Solaris physical servers & Virtual Server.• VCS & VxVM Up-gradation (2, 3 and 4 Nodes)• Automation of daily task via Ansible and shell scripting.o OS Patching automation along with pre and post patching validation via Ansible. o Post build tasks automated via Ansible. o Other daily reporting tasks as per client requirements were automated via Ansible. Show less

  • Senior Principal Infrastructure Engineer

    Jan 2015 - Aug 2017

  • Principal Systems Engineer

    Jun 2013 - Jan 2015
• 

  The Depository Trust & Clearing Corporation (DTCC)

  Aug 2017 - now

  Infrastructure noise and service requests on Service-now are automated from beginning to finish via Python.Pipelines-based automated administration of IAM, Snapshots, EC2 instances, Roles & Policies, etc. Once again, the process of getting data from Service-now and completing an entire unattended job has been automated using REST API. Obtained the daily job requirements from various domains and automate them using Python/Ansible or Shell. Helped application development teams find ways to use best practices for the AWS cloud.Cloud controls, governance, and security on the AWS have been examined, implemented, and scheduled.Infrastructure deployment and administration were automated using Cloud formation and Lambda functions.Did Setup of Cost Explorer to watch and analyze costs and usage, AWS Calculator to estimate costs, and AWS Budgets to control spending.Established monitoring of AWS events pertaining to Performance, scalability, availability, and reliability. Show less Design Architectural Automation in consideration with Enterprise level cost cutting. Manage the scalability and efficiency of the Livestream platform.Initiated and Implemented an In-house tool which will connect with 4000 plus servers using Ansible and designed CLI for the same via Python. Automated CIS Benchmark scan & fix, which can be run independently on servers to scan, report & fix.Experienced on designing, implementing or supporting Cloud Infrastructure solutions with AWS.Participate in capacity planning and forecasting, system performance analysis, and system tuning.Getting engaged with Project team and influence ongoing design architecture of the platform.Engage Project team for upcoming migrations to account Critical Application requirements and Provide SME Support for RED HAT Linux, AWS EC2 Linux instances and reported issues. Data Center Consolidation of legacy SPARC servers and design & implement Migrations to RED HAT Linux, OpenShift and Cloud. RED HAT Satellite Implementation and migration of servers from local repo to Satellite & capsules. Participate on Agile based Squads for catering vital business projects. Implemented Ansible and Ansible Tower to automate repetitive tasks and restricted via roles for different level of supports. Show less

  • Associate Director

    Jan 2021 - now

  • Lead systems Engineer

    Aug 2017 - Jan 2021