Software Engineer Service

ANITHA LAKSHMIPATHI

847-***-****, *.******.*@*****.***

VISA STATUS: H4 with EAD

SUMMARY

• A result-driven software engineer who can think out of the box.

• Proficient in C, C++, network programming, TCP/IP and 3G/4G PCC (Policy and Credit Control) architecture.

• Hands on experience working with Perl, Ruby, Ruby on Rails 4, HTML/CSS.

• Strong understanding of MVC architecture, RESTful APIs.

• Understanding of Object oriented programming, basic design patterns and relational database.

• Experience in designing and developing complex, large scale software system that can handle millions of simultaneous subscribers.

• Open and eager to learn new technologies.

PROFESSIONAL EXPERIENCE

SANDVINE TECHNOLOGIES SOFTWARE ENGINEER May 2012 – Sept 2013 PCRF with Embedded Quota Management as per 3GPP standards

• Was responsible for design, implementation, test and documentation of user credit management system in diameter Gx interface (server side implementation of Gx usage monitoring).

• Designed and developed core logic to handle subscriber usage on the events of Credit Control Request-Init, Update and Terminate.

• Designed and developed data model to handle family plans (multiple subscribers sharing same plan).

• Developed an efficient model to prevent over usage by the users and minimize revenue leakage for the operators.

• Designed and implemented configurations that provides great flexibility for service providers to define their service plans.

• Developed the system to handle error conditions like no more quota available for the request, subscriber not provisioned for requested service, abnormal termination etc.

• Designed and developed advanced features to handle rollovers (rollover at the end of month in case of monthly quota), top-ups, event triggers in different scenarios.

• Involved in code review for peers.

• Collaborated and worked to fix build issues.

Tools and Technologies used:

C, C++, Perl, ClearCase, Unix, Windows, Spirent

CISCO SYSTEMS SOFTWARE ENGINEER June 2010 – April 2012 Traffic Performance Optimization - an inline service in 3G/4G core network that provides client side optimization for wireless TCP.

• Involved in analysis of wireless TCP behavior by running simulations and analyzing packet captures using tcpdump and wireshark to identify spurious retransmissions and to distinguish wireless losses from congestion losses.

• Involved with other team members on the research and simulation of various congestion control algorithms such as TCP Reno, Vegas and their behavior in different TCP states.

• Implemented various TCP optimizer algorithms like Duplicate Selective ACK (rfc2883, configurable TCP buffers.

• TPO uses TCP proxy to split the end to end TCP connection. Worked on integration of TPO with TCP proxy when TCP proxy went through a major architectural change.

• Implement stats to showcase TCP behavior.

• Discovered and fixed flaws in the code impairing TCP performance. For example, fixed a bug that caused TCP Reno to behave unfairly when TCP connections were shared. Tools and Technologies used:

C, Wireshark, Winscp, Xming, tcpdump, bitkeeper, Linux, Windows PROJECTS

QoS aware handover mechanism for Voice over IP

• Assisted a senior professor in developing a QoS aware handover mechanism for Voice over IP that can operate in a heterogeneous wireless network environment using multi-homing capability of SCTP.

• This work proposes SCTP based handover solution for VoIP called Endpoint Centric Handover which incorporates cross-layer metrics for voice quality assessment to accurately estimate the QoS of candidate handover networks, thus facilitating a more intelligent handoff decision.

Tools and Technologies used:

C++, NS2.

Twitter like microblogging website

• Implemented both front-end and back-end of the website.

• The primary features of the website include: user sign up with account activation, user authentication, remembering logged in users with cookies, view/follow other users, write micro- posts, getting feed of micro-posts from following users.

• The website was built completely based on REST architecture.

• Throughout development the code was version controlled using Git.

• The website was hosted using heroku.

Tools and Technologies used:

Ruby, Ruby on Rails, Git, BitBucket, Heroku, HTML/CSS, Twitter bootstrap EDUCATION

College Of Engineering, Guindy, Anna University, Chennai India 2006-2010

• Bachelor of Engineering in Information Technology with GPA: 8.21/10. Coursework: Programming Languages; Object Oriented Programming, Algorithms; Operating Systems; Database;

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