Altanai Bisht

Network Protocols Specialist | Author | Innovator

Specialized in SDWAN, VPN, Secure CPaaS, carrier-grade WebRTC-SIP platforms for Unified communication-collaboration, signaling gateways, SBC, soft turrets and telecom integrations. Interests : Protocol Design and ultra-low-latency real-time media streaming.

Experience

Senior Software Engineer - Cloud VPN at Cisco Meraki (2022 - Present)

  • Leading the development of secure cloud-based VPN solutions.
  • Collaborating with cross-functional teams to enhance network security features.

Open Connect Transport Protocol R&D Intern at Netflix (2022)

  • Research and development on the algorithm for Netflix's new upcoming highly-interactive RTP/RTCP based streaming media applications.
  • Analyzed and leveraged heuristics for rate adaptation, bandwidth and latency estimation, congestion control and loss recovery of RTP/UDP media streams.

Intern at WebRTC.ventures (2022)

  • Implemented WebRTC telephony applications using SFU, MCU, and hybrid setups.
  • Optimized metrics for TURN and ICE.

Core Lead Engineer at Airtel IQ (2020)

  • Designed and implemented VoIP backend system components using Asterisk libraries.
  • Delivered cloud telephony solutions via SIP trunking.

Senior Software Engineer at Plivo (2018 - 2020)

  • Designed the SIP trunk service architecture for Plivo Zentrunk.
  • Owned and optimized core SIP backend platform, including inbound call flows, security, and media route optimization.

Software Engineer at IPC Systems, Inc. (2016 - 2018)

  • Implemented software-based VoIP turret phone systems.
  • Designed and delivered a full-stack distributed CPaaS from inception to delivery.

Software Engineer at Above Solutions (2014 - 2016)

  • Programmed modules for Wowza engine, CloudFront distribution, and adaptive streams for HLS, RTSP, and RTMP.
  • Researched and innovated media engines for WebRTC to legacy codecs.

Software Engineer at Tech Mahindra (2011 - 2014)

  • Conceptualized and implemented "Telecom Service Orchestration and Transformation Engine" for clients.
  • Designed call flows and architecture for interaction of IMS SIP Servlets with existing telecom applications.

Teaching Experience

  • Computer Networks at Seattle University
  • Robotics to underprivileged children at Dream Design Tobotics Program
  • Placement Coordinator in undergrad

Education

Master of Science in Computer Science

Seattle University (2021 - 2022, GPA: 3.83/4)

Bachelor of Engineering in Computer Science (2007-2011, 77% out of 100)

Anna University Chennai

Enterprise Projects

I have worked on following enterprise projects in various capacities

Cisco Secure Connect and Cisco Secure Access

Core contributor to propertiary protocol design and developemnt on AutoVPN

Netflix OpenConnect as Research Intern

Netflix Open Connect is a content delivery network (CDN) owned and operated by Netflix. It is designed to deliver high quality video streaming to Netflix subscribers around the world. The CDN consists of a network of servers strategically located in various regions to cache and deliver Netflix content efficiently. By bringing content closer to users, Open Connect helps reduce latency and improve streaming performance.

AirtelIQ

AirtelIQ is a cloud-based communication platform that provides businesses with a range of communication and engagement solutions. It offers services such as voice calls, SMS, email, and chat, allowing businesses to connect with their customers through multiple channels.

Plivo Zentrunk

Plivo Zentrunk is a cloud-based communication service for large volume voice calls.

Unigy360

Unigy 360 is a unified communications platform designed for the financial services industry. It provides a comprehensive suite of communication and collaboration tools, including voice, video, messaging, and conferencing capabilities. Unigy 360 aims to enhance productivity, streamline workflows, and improve communication among teams within financial institutions.

Unified Communication and collaboration WebRTC Platform

The WebRTC client is a web based sip phone for communication without any plugins or installations. It is bundled with RCS (rich services) like phonebook syncing, voicemail, geolocation, oauth, advertisement engine. WebRTC socket.io Signaller and Websocket gateway to convert SIP over Websockets to SIP. Customer : Elisa, rich interest from another European telecom operator

Jiyo Health

B2C health and wellness platform product. Partners include Moxtra, Apollo Hospitals, Deepak Chopra foundation among others. I owned and implemented Livestreaming service called Jiyo NOW. Server APIs over php for scheduling clasrooms, broadcasts, notifications, authorization etc. .

View Project

WebRTC Live streaming using Wowza

LiveStreaming Solutions is a publisher to player setup including authentication, transcoders, multiformatting, adaptive bit rate, CDN distribution and is device agnostic.
Tools : Wowza Streaming engine for HLS and RTMP, AWS ec2, cloudfront, flex, flash, JS, codecs, ffmpeg, gstreamer , gocoder Media Live Encoder

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TangoFX chrome Extension

TangoFX Sessions is a plug and play platform for Internet calling with collaborative tools like Code, Draw, Screenshare, multi language realtime translation while talking, 2 player games. TFX is essentially just the core platform exposing the APIs to let developers make their own interactive widgets over existing communication framework. Few widgets developed by contributors include chess, face detection. I designed and developed TFX a chrome webrtc extension and standalone platform with modular structure and set of APIs and SDK to plugin and play as widget. COTURN Integration and enhancement on custom TURN server for ICE and NAT traversal

View Project

IVR based Call Completion

Interactive Voice Respondent with DTMF inputs I programmed the JAINSLEE logic and tested on Open IMS platform
Tools: OpenCloud SDK, FSM tool, Rhino TAS, Open IMS, Monster SIP/IMS Softphones, Wireshark, Voxpilot Media Server, Darwin Streaming Server, Kannel SMS Gateway

Session Mobility

Session Mobility is an application which allows the user to change the access networks. With this application in place, a user attending a VOIP or SIP call on his mobile device can transfer the voice session to another device My roles was to o Designing use cases and call flows. o Program the SIP servlets and deploy on Weblogic Sip Server o Develop VXML scripts for Media Server
Tools : OpenCloud SDK, FSM tool, Open IMS, Weblogic SIP Server, Monster SIP/IMS, Softphones, Wireshark, Voxpilot Media Server, Darwin Streaming Server

View Project

Service Orchestration and Transformation Engine

Customer is a Belgium Based Service Provider Enables reusing the existing telecom core services by allowing orchestration between IN–IN services, IN–SIP services, SIP–SIP services and SIP-Web services. I designed and developed SIP services like Call Screening, Find Me Follow Me, Call Transferring, Voice Mail. I defined and executed interaction logic between SIP servlets. Configuration of OpenCloud Service broker platform. Independently handling various tasks assigned with precision and quality within stipulated time.
Tools : OpenCloud SDK, FSM tool, Open IMS, Rhino VAS, Softphones, Wireshark

View Project

Open Source Projects

This is a non-exhaustive list. Please look at https://github.com/altanai?tab=repositories for projects.

Skills

I specialize in real-time communication technologies, particularly Voice over IP (VoIP), WebRTC, and media streaming protocols. My extensive experience in telecommunication platforms, real-time communication algorithms, and protocols underscores my proficiency in developing and optimizing complex distributed systems. My expertise encompasses a broad range of skills:

Networking

  • IP Routing
  • Firewall Configuration
  • SASE
  • Tunneling SD WAN, , VPN, NAT,
  • MASQUE, IPSec, AutoVPN
  • Traffic analyzer tshark, sipP, tcpdump, sngrep, iperf

RealTime Communication and Streaming

  • WebRTC
  • Low latency streaming with RTP/RTCP UDP packetization. Rate adaptation and Congestion control models.
  • SIP trunks via Kamailio, Asterisk, Freeswitch, Opensips
  • SDP manipulation, call routing
  • Media Server Wowza, Live 555, Janus, RTPengine, MP4 parserN
  • RTP topologies Mesh, MCU, SVC, SFU, mixers, bridges FFmpeg, GStreamer, Janus

Programming Languages

  • Rust
  • Go
  • Python
  • NodeJs and JavaScript
  • C++
  • Java
  • Lua

System Design and Architecture

  • Scalable System Design
  • Distributed system
  • Daisy chaning points of presence(PoP) for performamce optimizations
  • serverless Event driven systems
  • Distributed reliable queue

Presentations

Awards and Honors

Winner at Microsoft's Azure AI Hackathon for first 50 qualifying entries(2025)

Work Appreciation by CIO and Head Cloud and Security business at Airtel (2020)

Link:https://www.linkedin.com/in/altanai/overlay/experience/1677271094/multiple-media-viewer/?profileId=ACoAAAJpfqkB6Mh_Ku-ay3GTa5882sjocXgVaXM&treasuryMediaId=1605599568192

McGyver Award for Technical Excellence at IPC (2018)

Link : https://www.linkedin.com/in/altanai/details/experience/1216566452/multiple-media-viewer/?profileId=ACoAAAJpfqkB6Mh_Ku-ay3GTa5882sjocXgVaXM&treasuryMediaId=1738800534050&type=IMAGE

Pat on the Back Award at Tech Mahindra (2018)

Link : https://www.linkedin.com/in/altanai/details/experience/1605597722806/single-media-viewer/?profileId=ACoAAAJpfqkB6Mh_Ku-ay3GTa5882sjocXgVaXM

TCS Gems for Company Technical Excellence (2013)

Awarded at Tata Consultancy Services for outstanding technical contributions.

Link : https://www.linkedin.com/in/altanai/details/experience/158424977/multiple-media-viewer/?profileId=ACoAAAJpfqkB6Mh_Ku-ay3GTa5882sjocXgVaXM&treasuryMediaId=1605640116173

ILP Kudos (2012)

Link :https://www.linkedin.com/in/altanai/details/experience/158424977/multiple-media-viewer/?profileId=ACoAAAJpfqkB6Mh_Ku-ay3GTa5882sjocXgVaXM&treasuryMediaId=1605640116173

Best Final Year Project- Information Highway (2011)

Integration of mobile devices, vehicles, and internet using GSM, GPS, and GIS. Secured 100% marks and "Best Final Year Project" award.

First Position at QQuest Case Analysis

Organized by Anna University.

2nd Position at Veltech University & Sai Ram Engineering College

Project on Automatic Data Capturing and Geo-location Technology (J2ME, RFID, Wireless).

2nd Position at GKM Engineering College & DMI College

Project: Electronic Content Management System (ECMS).

Media Coverage

Contact

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