Promit Kumar Chatterjee

Experience

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  Aricent

  Jan 2010 - Jan 2010

  Trainee - Software Engineer

  C++ Programming and Linux OS class room Training.

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  Aricent

  May 2010 - Dec 2013

  Software Engineer

  • TGen: "Traffic Generator": "Radio Network Controller (RNC) Performance Testing Tool". o MT-SMS & Direct Transition of UE from URA-PCH/CELL-PCH state to CELL-DCH state. o Multi Packet Switch (PS) Implementation: [1Circuit Switch (CS) + 2 Packet Switch (PS) & 1CS+3PS] for DCH, HSDPA & HSUPA. o Implementing bi PSCR for E-FACH (a 3ggp Release 8 and higher). o POC: Light Radio Controller (LRC) development (porting of module to virtual environment).• UMTS RNC: Radio Network Controller: Call Processing (CallP) o Maintenance bug fix Show less

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  Nokia

  Dec 2013 - May 2018

  Senior Software Engineer

  Working as a software developer for Nokia Networks's Subscriber Data Management (SDM) solution OneNDS™.It is a fully subscriber-centric directory server that can scale to serve over 250 million subscribers with 10,000 transactions per sec. It provides millisecond response times and geographical resilience for continuity of service.OneNDS uses a hierarchical data model and the data is distributed in multiple nodes (machines).In addition, secure multi-tenancy and service hosting scenarios enable operators to develop new business models with other application and service providers.The client list included T-Mobile, Vodafone, Verizon, Telkomsel, Zain, Megafone, TMN, Jio India etcOver 2.5 Billion subscribers is severed by OneNDS.OneNDS is the data repository for applications like MNP, HLR/HSS, AAA, EIR etc Show less

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  Nokia

  Jul 2018 - Aug 2019

  Technical Lead

  Working on Nokia Networks's Subscriber Data Management (SDM) solution SDL™.The new architecture separates the data storage from the service logic to introduce a fully virtualized, distributed, geographically redundant and strongly secured Shared Data Layer (SDL). Role : Individual Contributor Feature list: 1. Containerization of OneNDS.-- Did POC using Docker containers to show that multiple Monolithic OneNDS™ software can be run on single blade server.-- This could give customer i) a cheaper alternative to SDL ii) could act as a bridge product between proven OneNDS and SDL.2. Added new 5G NUDR/HTTP2 interface in Nokia Storage Data Layer (SDL).-- using nghttp2 c/c++ library & boost ASIO implemented access layer (http2 server).-- implemented GET & have put placeholders for PUT, POST & DELETE.-- implemented 5G NUDR functions for GET.3. Working on adding schema on LDAP interface of Nokia Storage Data Layer (SDL).-- Added Nokia OneNDS to SDL schema conversion tool.-- Added optimized schema data store.-- Added live schema update.---- added validations & lookup---- added schema clients as a separate service.-- Added validation of incoming msg with schema at Access layer. Show less

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  Amadeus

  Aug 2019 - now

  Technical Lead

  Role: Technical Lead• Mentor for ML Internship: Integrate Large Language Model (Llama 2) for Content Creation.• POC/Innovation Week: Created Large Language Model (Llama) CPP Backend to serve as chat bot.• Mentor for ML Internship: Predicting Hotel Availability & Trend analysis • Leading Shopping & Reservation teams in Bangalore.• Recognized by Architectural community for "Payment Services Directive" (PSD)2 for Hosted Hotels.• "Covid-19 Safety protocol indicator" in Cryptic (CUI) & WebServices.• "Biasing Engine" for Search result sent via Cryptic (CUI) & WebServices.• Business-to-Business (B2B) wallet as a form of payment for Booking.com. • Control triggering of "Traveler email" for Travel Channel managers like Agoda.• Send "Financial Feed for Deferred payment" at different steps of reservation for in-house branded Amadeus Value Hotel (AVH) bookings.• POC/IP Week Winner: Hotel Content Ranking. Show less