Industry Work Experience

A9.com, Inc., Amazon, Palo Alto - Software Engineer, Intern

September - November 2019 (3 months)

• Designed & developed a big-data pipeline to parse Amazon Ad Exchange Experimentation Framework logs using Spark.
• Parsed logs of size 6TB hourly with a cron scheduler, computed raw & inferential statistical metrics– confidence interval, p-value without re-processing the whole data. Elastic Map Reduce clusters(EMR), s3, Glue, Athena, & QuickSight were used.
• Advertisement logs such as bid, click, impressions, nobid, punt of various source groups- video_rtb, adx, mobile_rtb, rmx, rtb_other with ttypes- web, mobile were parsed. Automation of EMR cluster creation, addition of step for Spark job, termination of cluster were controlled by an internal automation framework Aegis.
• Report
• Stats Engine
• Big Data Pipeline

Cisco Systems, San Jose - Software Engineer, Intern

May - August 2019 (4 months)

• Developed automated testing for features of the Adaptive Security Appliance Next Generation Firewall platform.
• Installed and executed testing of Umbrella connector against NGFW platform to maintain and enhance overall quality using pyATS and CICD test frameworks. Investigated test failures and assisted with bug investigation and reproduction.
• Report

Research Assitant at USC - Sol Price School of Public Policy

December 2018 - May 2019 (6 months)

• Research Assitant at USC - Sol Price School of Public Policy under Dr. Janna King.
• Assisted with cleaning a full-text dataset of all House and Senate committee hearings from the early 2000s to present.
• Extract and flag particular things from the above-mentioned dataset. For example,
• Extract the location in which each hearing was held,
• Flag when administrative agencies appear in the hearings using a separate dataset of agency names;
• Flag when witnesses are women based on the names of the witnesses, and so on.
• Machine learning based on a hand-coded random sample of the dataset.
• Web scraping, for example, from LinkedIn profiles of witnesses giving testimony in hearings.

COCOMO Software Engineering at USC – Intern

May - July 2018 (3 months)

• COCOMO is a software effort cost estimation model, originally developed by Dr. Barry Boehm . There is an old implementation of the model that only runs on Windows. This project is an attempt to re-implement COCOMO in Java so that it is accessible/executable on any OS platform. Most, if not all, of the major functionality, has already been developed. Extensive testing, fixing of bugs, and possible completion of features are implemented.
  • Tested and fixed counting defects for as many languages as possible. COCOMO (Java)
  • Testing work, with possible bug fixing, few unfinished tasks or features have been implemented.
• Testing work, with possible bug fixing, few unfinished tasks and features have been implemented.
  • Setup the environment to run the project and read the USC COCOMO documentation.
  • Understanding the team and its members. Created the project plan for the rest of the semester.
  • Went through previous semester test cases and bug reports.
  • Executed older version of the software.
  • Discovered differences between old windows and newer java version of COCOMO.
  • Had to pitch in for testing in Linux, since one of the team members dropped out.
  • Setup Linux environment and installed COCOMO. Implemented various features thus enhancing the user experience in the GUI.
  • Implemented Edit, Help menu, fixed existing bugs and tested function points as part of accuracy testing.
  • Read the document for manually calculating the FP.
  • Implemented print screen, print modification menu, and a screenshot of the COCOMO console, which would increase the user experience.
  • Implemented a maintenance feature which includes either updates or repairs and tested on different OS platforms.
  • Tested Java model for various random values(manual vs Java calculation), performed validation tests for all input text boxes, added keyboard shortcuts.
  • Explored more on COCOMO documentation, API basics commands, and its protocol. Compiled the final report of the whole semester.
• Report
• Code

Cisco Systems, Bangalore - Engineer, Server Virtualization

July 2015 - Dec 2017 (2.5 years)

• Working in TAC at Cisco as Server Virtualization Engineer (UCS, VMware, Nexus, Hyper-V):
  I troubleshoot network related problems end to end - starting from VMs hosted on VMware to SAN storage (SCSI, FC, and FCoE). In the case of a network outage, I am expected to recover network connectivity in a short duration by troubleshooting the path of a packet using my own logic on the laid networks. I fix the issue either by implementing a workaround or resolving the cause of the problem. Some of the noteworthy cases I have worked on include performance problems faced by Nimble Storage, Nexus 1000v, network outage experienced by various multi-national companies such as AT&T, Comcast Communications, Telstra, Airtel, financial institutions, etc. I fixed some of the critical bugs for these organizations.
• Delivered solutions and resolved problems for Cisco clients through computer programming and systems engineering.
• Role involved troubleshooting large scale data center networks and scripting to automate diagnosis of problems in network.
• Summary:
  • End to End support of Cisco UCS B and C series servers.
  • Troubleshooting storage and network related issues on the servers.
  • Installing, Upgrading and planning the maintenance activities depending on the customer contract and assisting during the issues while day-to-day operations.
  • Break/fix issues on regular and advanced features of UCS and Data Center technologies.
  • Work with multiple vendors on the OS and storage related troubleshooting. Collaborating with different vendors like VMware, Redhat, Microsoft, Citrix, VCE, EMC and Netapp to collectively resolve network,server and storage issues.
  • Generate Content and assist customers in configuring,installing,maintenance and troubleshooting the Cisco UCS Servers.
  • Providing consultation support for complex problem resolution and validating design plans/solutions for Cisco sales/customers.
  • Implementation and working knowledge of Nexus 7k, 5k, 2k series, Unified Computing System (UCS B/C series), Nexus 1000v Virtual switch (VMware, Microsoft) and Nexus 1010-X appliance.
  • Working knowledge on VMware vSphere 4.1/5.1
  • Interacting with Sales Engineers, Account Managers, and Engineering teams to come up with solutions to complex issues in the Customers’ setups.
  • Decoding complex logs and core dumps to analyze and verify root cause of the issues.
  • Filing bugs for issues so that they are resolved in upcoming code/software revisions.
  • Understanding of FlexPod solutions and Vblock environments.
  • Setting up and maintaining Cisco Lab equipment for team use in issue reproductions and general practice and usage.
• Volunteered in Cisco’s Corporate Social Responsibility activities; Directed fresh graduate employees and interns; Acted as Ambassador for Foundation to Success, a global Cisco training program; Authored the Jive On page as a lead member for the team, an internal forum for Cisco employees.

Cisco Systems, Bangalore - Intern

Jan - June 2015 (6 months)

• Completed practical training and assisted in ongoing projects (automation and RMA reduction) through computer programming and systems engineering
• Big Data Broker Tasks related to UCS :
  • Implemented a parser using various algorithms such as a variation on CYK, LR parsers, and shift-reduce in Python, to parse the tech-support bundle from Unified Computing System(UCS) and extract the required information, through automation. This project helped Cisco Systems save a lot of man hours which would otherwise have been spent manually analyzing the logs.
  • Advisor: K.Yogajothi, Lead-Server Virtualization team, Cisco Systems, India.
• Report
• PPT

CCoEE (Cisco’s Centre of Engineering Excellence) at Amrita, Coimbatore – Trainee

May 2014 - January 2015 (6 months)

• Qualify certification exams and monthly in-depth technical evaluations
• Cisco Center of Engineering Excellence :
  I was part of CCoEE( Cisco Centre of Engineering Excellence ) at Amrita, sponsored by Cisco TAC, which is a partnership program between Amrita and Cisco systems. It aims at producing Network Engineers with a strong emphasis on fundamentals and Troubleshooting skills. Training period lasted for 6 months, where we completed our CCNA and CCNP. The most challenging part of the program were the knowledge checks by Cisco TAC Engineers at every stage, real world where we will be tested with real-world problems faced by Cisco TAC.

ONGC, Chennai – Intern

May - July 2013 (3 months)

• Developed a rich web based Intranet Mail for sending and receiving ONGC Ltd. ISO formatted forms. It was implemented using Microsoft .NET framework -ASP.NET and Microsoft SQL Server and traversal of ISO forms outside the organization are put into null.
• Advisor: Ravinderanath.B, Dy. General Manager – Programming, Oil and Natural Gas Corporation Limited (ONGC) Ltd., Chennai, India.
• Code
• Report