Karan Kohli

Experience

• 

  Aricent Group

  Jan 2008 - Jun 2008

  Intern

  I worked In Aricent Technologies on IMS technology. My duties were basically devoted to the development of the Presence Server in IMS structure.

• 

  Alcatel-Lucent

  Aug 2008 - May 2013

  Senior Developer

  Activities:---------------- Development of MNP handling at SIP User level - Diameter interface- Understanding of Customer Requirements and designing the Feature Specifications for Sy interface handling at OCS. Also, developed a module at the OCS for the Sy interface for communication with the PCRF for real time policy handling- Development and testing at Service Interaction Gateway (SIG) for PTC-ERA Poland. SIG is a programmable Application Router, which can be used to handle and route events received on any protocol (IMS, SS7, TCP IP, XML/SOAP, Diameter).Development for Diameter based calls: MMS-MT and Data session were developed from scratch at SIG level.- Development and testing of a feature based on CM3GPRS for BSNL based calls. The development was to convert the bytes received from network ACR to be charged in kilo bytes by online charging suite and then again reply back in bytes. This was basically done because of introduction of 3G network due to which huge volume of consumption at small interval possible- DATA Support : all CM3GPRS & Diameter based calls issues are being analysed.Past Activities:----------------------- Involvement in customization, development & acceptnace testing of Online Charging Suite (ICC/CRE) for Bell Mobility, Canada-Onsite: for customer acceptance testing ensuring a high percentage of success , giving training to the customer for the new Alcatel Intelligent Networks (ICC)-Ensuring proper working of the ICC after migration of Subscriber databse from old Alcatel Intelligent Network (PPS) to new Alcatel-Lucent Intelligent Network (ICC) for different customers like BSNL (India). Show less

• 

  Xius

  Jun 2013 - Jun 2013

  Senior Software Engineer

  Activities--------------- Development of Policy Control and Charging Function product for Xius (Megasoft). PCRF developed was interacting with PCEF on Gx interface.- Define all the test cases (internal and Customer Specific) for the PCRF product. Implement automation of test cases using Seagull.

• 

  Ericsson

  Jul 2013 - May 2018

  Solution Architect

  Airtel (PAN India) OCS Solution Architect Ericsson Nodes involved: CCN, OCC, SDP, AIR, NgCRSLead end to end architecture of Bharti. Designed expansion solutions for Bharti to cater more traffic.Planned and designed the migration for Telenor to Airtel.Presented (POC and Implemented) unique solution to create CCN redundancy.Presented (POC and Implemented) cost saving solution for SDP Geographical Redundancy.Proposed multiple solutions for Cisco and Ericsson switches Pan India wrt OCS.Responsible for day to day activities and resources.Client InterfaceOrange, Tunisia, Solution architect/ IntegratorDesign and Implement the expansion of CCN nodes to cater more subscribers.Client InterfaceOptus, Australia (Senior Integrator and Test Lead)Design and Plan the migration from Comviva IN to Ericsson OCS.Installed and integrated CCN, OCC and SDPsCreate migration scripts as per the requirements.Create traffic plans specific for Optus that invloved innovative POCs to achieve.Lead and even executed the testing with Client.Orange, Burkina Faso, Solution Architect/IntegratorEnd to End Architect for OCS, OSS, Switch and GGSN/ PCRF solutionsDesigned and implemented Charging System, OSS and MCAS(GGSN) expansion. Airtel(Niger, Tanzania, Ghana) - Senior IntegratorImplement the expansion of nodes to cater more subscribers.Test end to end functionalities.Orange & Vodafone Egypt - Senior IntegratorDesigned optimised solutions for specific Mobinil nodes from other vendors.Installed and integrated CCN & OCC.Test end to end functionalities.Client InterfaceMTN (Uganda & Nigeria) Senior IntegratorDesign solution for specific backup solutions on archive servers of Symantec.Test end to end functionalities.CADE, Senior DeveloperDeveloped USSD functionality for customised applicationsProtocols: CAMEL, INAP, MAP, Diameter (Gx, Gy, Sy & Ro)Langauges: C++, CScripting tools: Shell and PerlNodes: OCS (Ericsson specific nodes: CCN, OCC, AIR, SDP, NgCRS Show less

• 

  Oracle

  Jun 2018 - Jul 2021

  Senior Consultant

  As a Consultant or an Architect, my role is to gather requirements and design optimized solutions for PCRF & Billing and Convergent Charging through Oracle Suite that involves nodes such as NCC (OC3C), BRM, ECE, OEP. In addition,responding to RFPs, presenting POCs, preparing BID documents, and answering all possible queries till the deal is signed are also a part of my day to day activities.Furthermore, I act as a bridge between the R&D and the client not only to provide successful solutions, but also to share future market trends that need to be developed. Show less

• 

  Capgemini

  Jul 2021 - Jan 2022

  Senior Manager
• 

  Covalensedigital

  Jan 2022 - now

  Senior Project Manager