- Block Cache Simulation on C based home grown simulator- Lingua Franca (LF) -- https://github.com/lf-lang/lingua-franca, as simulation platfrom- For features to work pushed feature changes to LF opensource repo - CDN Simulation on LF platform- Active research going on based on CDN simulation I built- Cloud deployment of Simulation (AWS EC2 Spot instances as stateless workers)

- ISCSI based storage server (read and write data cache)- Recovery service that lets ISCSI client connect to a remote backup service

In addition to previous responsibilities following additional responsibilities I was entrusted with- Build TFS (Telephony Feature Server) team in coordination with HR- Lead 5 engineers in Hammer Team- Lead 20+ engineers in TFS Team

- Developed End to End testing tool (Hammer) for Avaya, Cisco, Genesys switches- Built a team that could take Hammer forward- Technical management of Hammer team and code reviews- Active development for TFS- Developed SIP Server (Back to back useragent) that can handle 3K+ calls per second, and 100K+ calls in queue and 100K+ connected calls- RTP based media server that can handle 200K+ UDP bi-directional UDP channels- Other implemented features are: 2 Party call, hold… Show more - Developed End to End testing tool (Hammer) for Avaya, Cisco, Genesys switches- Built a team that could take Hammer forward- Technical management of Hammer team and code reviews- Active development for TFS- Developed SIP Server (Back to back useragent) that can handle 3K+ calls per second, and 100K+ calls in queue and 100K+ connected calls- RTP based media server that can handle 200K+ UDP bi-directional UDP channels- Other implemented features are: 2 Party call, hold, off-hold, transfer, conference, call interception.- Media Mixing feature in media server- Technical management of TFS engineers Show less

- Developed Digital Channel gateway service to connect web chat, SMS customers with Afiniti hosted agents- Developed SIP and RTP based feature and performance testing tool. Afiniti QA team was the client of the tool for their regression and load testing.- Retail App feature for Afiniti’s MegaACD- High Availability feature in megaACD, involving restoring all the connected and in queue calls onsecondary passive node

- Translation layer written in C++ and C to integrate Cisco’s data plane (VPP) with Juniper’s SDNcontrol plane (OpenContrail) having Openstack as orchestrator- L2 forwarding, L3 forwarding, ARP termination, VLAN interfaces, VxLAN tunnels, MPLS over GRE,service chaining. These were the basic features that I wrote.- Floating IP support in Cisco’s data plane (VPP) as per OpenContrail specifications- Automated deployment of product containers using ansible, python and bash… Show more - Translation layer written in C++ and C to integrate Cisco’s data plane (VPP) with Juniper’s SDNcontrol plane (OpenContrail) having Openstack as orchestrator- L2 forwarding, L3 forwarding, ARP termination, VLAN interfaces, VxLAN tunnels, MPLS over GRE,service chaining. These were the basic features that I wrote.- Floating IP support in Cisco’s data plane (VPP) as per OpenContrail specifications- Automated deployment of product containers using ansible, python and bash scripts Show less

Modified HAProxy (load balancer) code asynchronously to incorporate user authenticationBackend code written in C++ to handle the HTTP traffic coming from load balancerMultiple processing threads and writing threads implementationThread secure implementation of backendThe tasks require extensive knowledge of socket programming, computer networks, https/https protocols, linux and C programming. Moreover, I used GDB for debugging purposes.

It wrote CAN driver for Fujitsu MB96F615RB MCUPorted Lin driver for Freescale MCU MC9S12ZVLIn my personal time I had been writing Linux device drivers. I had written UART driver for Raspberry Pi.

Title of the thesis was "Joint optimization of cell clustering, beamforming and user scheduling based on heterogeneous traffic demands in 5G networks."I solved this convex optimization problem with hierarchical decision making approach.Intra-site cell clustering scheme and Inter-site cell clustering.Signal to Leakage and Noise Ratio beamforming, and Interference Alignment beamforming techniques.On top of these multiple user scheduling schemes were analyzed for QoS and… Show more Title of the thesis was "Joint optimization of cell clustering, beamforming and user scheduling based on heterogeneous traffic demands in 5G networks."I solved this convex optimization problem with hierarchical decision making approach.Intra-site cell clustering scheme and Inter-site cell clustering.Signal to Leakage and Noise Ratio beamforming, and Interference Alignment beamforming techniques.On top of these multiple user scheduling schemes were analyzed for QoS and performance under full buffer and non-full buffer traffic models.Wrote my own fairness scheduling algorithm that outperformed legacy fairness algorithms. It was published in Bell Labs as trade secret.The research was supported by analytical as well as simulative approach. System level simulator based on C++ was used to validate the research ideas. Show less

Wrote MSP430 firmwares.Wrote optimized printf function for Code composer Studios.Wrote power saving examples for Ultra Low Power MSP430 advices.Black box testing of next generation ultra-low power debugging tool.Wrote test cases for FPGA implementation of 32 bit MSP432 MCU.Tested forward compatibility of existing debugging solutions with the FPGA implementation of 32 bit MSP432 MCU.

I developed traffic dimensioning tool for MSC's over Microsoft Excel through VBA scripts.Traffic segregation into calls and signalling over circuit switch and packet switched nodes was the end goal of the tool I developed.

Development of a simulation test bed for 802.11n WLAN standard in C++. In addition to that I implemented the interleaving/de-interleaving and channel estimation for the project. This experience provided my sound theoretical knowledge of OFDM and MIMO systems with a practical dimension. In addition to that programming over pipelined multi-core architecture was a great learning and challenging experience. After the project ended I shifted to GUI development for LISA tool over QT creator. LISA is… Show more Development of a simulation test bed for 802.11n WLAN standard in C++. In addition to that I implemented the interleaving/de-interleaving and channel estimation for the project. This experience provided my sound theoretical knowledge of OFDM and MIMO systems with a practical dimension. In addition to that programming over pipelined multi-core architecture was a great learning and challenging experience. After the project ended I shifted to GUI development for LISA tool over QT creator. LISA is an intelligent tool that converts the High-level language like C++ to Register Transfer Level design. Show less

Worked as Operation, management and support personnel for looking after ZTE Charging System including various tasks such as implementation of services, (multimedia, broadband and PSTN) traffic dimensioning and troubleshooting. Through that job I have hands on experience in commissioning of new Optical Network Unit and solving issues of backward compatibility. Other tasks include optimization of Fiber Rings, upgrades, performance reports, Virtual Private Networks configuration.