324 Crittenden way, Apt 5                     RS Sujayyendhiren                                  Email: sujayy1983@gmail.com

Rochester NY-14623www.linkedin.com/in/sujayyendhiren/                            Telephone: 585-503-5436

 

Objective

 

Seeking full time job as a Software Engineer, utilizing my seven years networking experience and master’s education. Available from January 2015.

 

Education/Credentials

Completed Master’s in Computer Science (May 2014) from Rochester Institute of Technology, Rochester. GPA- 3.55.

 

Professional Experience and Software Skills SummaryDuration:7+ Years

 

·            Programming languages: C, Python, C++, Core JAVA and C#.

·            Protocols: MobileIP, EAP-AKA, DHCP, IPv4, IPv6 and LTE layer2

·            As an onsite coordinator and a developer, was deputed to SAMSUNG (S Korea) for design discussions and integration testing

·            Operating System: Montavista Linux, Ubuntu, Windows 2000.

·            Tools: Octeon SDK with Simple Executive (Cavium Octeon CN5860), Cygwin, Visual Studio 2013, Protogeni cloud.

·            Versioning tools: Rational Clearcase, Microsoft VSS and GIT

·            Software development experience in Waterfall and Agile models. Experience in requirement gathering, designing, coding, testing, debugging and troubleshooting

 

Juniper Network Inc                               Juniper DDoS secure                                      Feb 2014 – Jan2015 Software Engineer-II                                                                                                     Rochester, NY

 

Description/Responsibilities:

- Design and develop CLI automation modules using Python ‘paramiko’ library. Implemented customized ssh receive implementations using paramiko library’s low level component i.e. channels. This automation module generated commands using auto completion feature of the command line interface. This module was also customized to parse specific output paramters.

- Developed REST automation framework using python ‘requests’, ‘python-nmap’ libraries in addition to some of the standard python libraries for json and xml libraries. The framework so developed is extremely modular and was developed in quick time. In addition to all the required features this framework also supports configuration verification from CLI interface. Along with this framework created about 300 automated test, tested, reported and re-verified (after fixing).

- CLI related bug fixing and bug verifications for Juniper DDoS secure. Some of the bug verifications were done using custom built python scripts. Some of the other bug verifications included verification using opensource python attack tools like Slowloris, RUDY, Goldeneye etc.

- Developed a WxPython based GUI for generating XML testcases, this GUI takes care of xml syntax.

 

Project as Research Assistant     OpenBIDS- Network Intrusion Detection System     Feb2013 - Feb2014

Design and develop a Network Intrusion Detection System (NIDS) for a SDN. Major components of our NIDS are Open Virtual Switch (an implementation of OpenFlow protocol) and Bloom Filter. OpenBIDS data plane is a kernel module comprising bloom filter and OpenFlow dataplane, the control plane is developed as userspace application and the configuration information pertaining to the signature is sent from the OpenFlow controller.Testing of the implementation is done in Protogeni (NSF and GPO funded), a cloud service offering platform-based services.Presented the research intiative poster at GENI Engineering Conference (GEC17) held at University of Wisconsin, Madison and GEC18 held at Brooklyn, New York City.Current focus is integratingAho-corasick algorithmfor signature pattern matching.Before publishing a research paper we are focusing on studying and improving the performance.

MS Projects                                                 Curriculum Projects                                   Sep 2012 – May2014

 

- Aspect Oriented Programming (AOP) – Designed and implemented security module. The security module implementation is a cross cutting concern in the UDP client and UDP server. The module is responsible for dynamically adding authentication and encryption for UDP data communication at the UDP client. A similar implementation at the UDP server handles authentication and decryption of data sent by the UDP client.

As part of AOP curriculum, implemented design patterns like decorators, singleton, observer etc, in Python.

 

-Parallel Computing- Implemented and optimized IP lookup using JNetPCap and a combination of TRIE and array data structures.First eight bits are indexed in an array then the next 16 bits develop intoa trie for lookup to obtain interface index for forwarding of data packet.Parallelism is achieved using Parallel Java APIs.

 

- Advanced programming course in C#: Created WCF, WPF and Silverlight applications in Visual studio 2013.

 

Career Experience[6 and 1/2 years]   Radio Mobile Access (Now AltioStar Networks)        LTE RLC Features                                  Feb-2012 – Aug-2012

 

Description/Responsibilities:

Developing a 4G LTE based eNodeB for Boston based startup at Bangalore.

·            As an independent contributor developed a standalone unit test framework to test RLC layer with CPPUnit. Developed test stubs forRLC layer and tested 170 test cases. Understanding LTE RLC layer based on 3GPP specification designed and developed RLC features.

 

Larsen & Toubro Infotech LTD                           LTE Traffic OAM                                   Oct-2010 to June-2011 Developer, Onsite system Integrator                                                                            Client:SAMSUNG, Korea

 

Description/Responsibilities:

Designed, developed and tested Bearer Trace Traffic Generator (BTPG), for Linux and Cygwin on WindowsXP / C++ environment. Coordinated for JAVA based frontend enhancement.

·            Designing and implementation of new features over and above Iperf software for LTE network traffic testing. This included numerous design changes like new headers at Iperf client side, more user configuration support via CLI and GUI, analysis of these new headers at BTPG Server side and interaction of GUI with the backend.Implemented the modules in offshore and completed system integration testing at Suwon South Korea, with complete test setup. Also provided maintenance support from offshore.Understanding requirement of BTPG and share the requirements withJAVA based Graphical User Interface (GUI) /frontend team for corresponding enhancement requirements in the GUI.

 

Larsen & Toubro Infotech LTD          Application Hosting Platform – Phase II              May-2010 to Sep-2010 Developer, Onsite system Integrator                                                                              Client: SAMSUNG, Korea

 

Description/Responsibilities:

Design and development of features of AHP’s Packet filtering subsystem in data plane for Enterprise ASN-GW, on Cavium 5860 network processor using OCTEON Simple executive / C programming

·            Study of existing AHP framework and implementation of new AHP features in the data plane. Design and development of new features – RuleSet implementation, enhancement of redirect/resend features.Merging of Simple Executive Ip forwarding (IpFw) modules with AHP new features and also merging of SE stable version with AHP branch in rational clearcase environment.

 

Larsen & Toubro Infotech LTD                       Open Flow – 1.0.0                                     Jan-2010 to April-2010 Developer                                                                                                                    Client: SAMSUNG, Korea

 

Description/Responsibilities:

Design of OpenFlow Protocol for Enterprise ASN-GW, on Cavium 5860 network processor using OCTEON Simple executive / C programming.

·            Requirement gathering based on the OpenFlow 1.0.0 specification and data plane architecture of Samsung Enterprise ASN-GW.High level design document included hooking of open flow filtering in L2.Configuration and testing of the available open source with the packet generator.

 

Larsen & Toubro Infotech LTD                         Enterprise ACR                                         Dec-2008 to Nov-2009 Developer and onsite coordinator                                                                                    Client: SAMSUNG, Korea

 

Description/Responsibilities

The scope of the project was to implement the ATCE data plane modules based on Wimax specification. Platform for the project was Cavium 5860 network processor using OCTEON Simple executive / C programming.

·            Requirement gathering, design, development and testing of data plane's Layer3 entry point, data plane packet copy for Voice quality monitoring (VQM) modules, IPC communication modules (ADM and SSC) between data plane and control plane. In system integration phase testing and test stub creation fordataplane modules of Mobile IP and IPv6. Onsite coordination for the project from Suwon, S.Korea, involved design discussions with Samunsg Engineers and also integration of modules of offshore and onsite.

 

Larsen & Toubro Infotech LTD       FlyWoWimax MIPv4 HomeAgent Emulator                Aug-2007 to Oct-2008 Developer and mentor                                                                                                    Client: POSDATA, Korea

 

Description/Responsibilities:

Designed, developed and tested Home Agent (HA) Emulator based on WIMAX NWG Stage-3 document and the RFCs. The HA Emulator comprised MobileIP (RFC 3344 and RFC 3543), Radius (Wimax NWG stage-3 document) and Diameter protocols (RFc 4004)was developed to test the functionalities of MobileIP and Proxy-MIP features of the Foreign Agent residing at the ASN-GW. Enivronment of development was Windows 2000, Visual studio, Red Hat Linux- 2.4.20 kernel.Completed system integration testing

at POSDATA South Korea.Contributed to the AAA team for design of EAP-AKA protocol, MobileIP-key generation and Radius protocol.

 

Larsen & Toubro Infotech LTD               Internal Initiatives – Ipv6                                    Mar-2006 to Jul-2007 Tester

 

Design document to trace complete socket layer code flow and functioning ofsocket system calls.Testing and bug fixing multicast (IGMP protocol) and Neighbor discovery (IPV6).Prepared test case document, test stubs and performed testing for IPv4 and IPv6 stacks.Understanding of Mobile Ipv6 RFCs.

 

Achievements

- Travel grants from NSF for poster presentations at GEC conferences – GEC17, GEC18 and GEC20.

- Obtained Grade ‘A’ in advanced programming subjects Aspect Oriented Programming, Advanced Computer Networks and Advanced C# programming.