Fullstack VOIP , WebRTC and media Streams Engineer . I solve real world problems .
CV : https://altanai.github.io/
Have build secure , fast , enterprise grade SDKs, platforms and applications over telephony, wireless communication and media streaming. I work with audio/video core libraries and drivers to perform video analytics and ML both on server ( freeswthc , ffmpeg , gstreamer , janus , RTP engine , Wowza etc ) and edge ( native android , pjsip , browser etc ) .
- Current role , core voice Engineer at Plivo Communication Limited
- One of the first core developers at IPC’s cloud trading communication platform , integrated to Oracle SIP application server back end with genband gateway , radisys media server and apache tools .
- Core developer for Jiyo (https://www.jiyo.com) for b2b unified communication , media streaming and API platform development .
Part of innovation and R&D telecom labs, also worked with the Converged network systems Lab in Tata consultancy services on many next-gen SIP applications for world’s top telecom providers which includes British Telecom , ATnT , Bouygues telecom, Belgacom among others . I have long working experience on WebRTC APIs and have made 2 full fledged VOIP communication platforms ( one using SIP as signalling , another using socket signalling ) . I have hands-on experience in developing Enterprise logic for the telecom application server in SIP and JAINSLEE using Core and Enterprise Java .
I have a strong command of design patterns and practical experience in process-oriented customer-centric agile environments .
- Low level Designs and development of Voice / VoIP Architecture (Call Control/Signaling, Media, Transport, Applications )
- Technologies – WebRTC , IMS , VoLTE , SIP Header Manipulation
- Servers – asterisk , kamailio , mobicents , SBC , IPTV , VAS , UC&C, gateway
- Protocols – SIP, RTP, RTCP, SDP, ICE, STUN and TURN
- Programming and Algorithms Extensive experience in Multi-threaded programming and network programming in Linux: UDP/TCP, Sockets, IPC.
- Integration of Third party Services and Session Border controllers (SBC)
- Avaya CM/ IP-PBX, Apropos CCS/IVR, Cisco Gateway/MediaSense
- Cisco CUCM, JTAPI/CTI, NICE Logger, SIP/PSTN Trunking
- Microsoft LYNC, Polycom Video Bridge, Cisco 5500 Wireless/AP
- Genband spider SBC and fcs web sdk integration
- Jitter management, Packet aggregation, MOS score optimization
- Security: TLS/SSL, LDAP
IMS domain knowledge (SIP, RTP, RTCP and related 3GPP IMS protocols ) . Video Telephony on LTE and WiFi radio technologies.
- Media Servers and live streaming –
- Servers – Janus , Wowza , freeswitch , crtmpserver , gst , ffmpeg , live555 .
- transcoding and multiplexing with MCU and SFU based setup
- audio codec G711, G722, G729, AMR-WB, AMR
- video codec like H264, VP8, MPEG4, H263
- Jitter management, Packet aggregation, MOS score optimization
- IVR, Speech Recognition, Natural Language Speech , Routing applications,
- profiling , voice mail , recording
- Video /Audio Analytics and Machine learning
- IOT and M2m wireless communication
- MQTT, BLE , Rpi , Arduino , shell scripts
- Server Side – Java , JavaEE , nodejs , grunt , php , mysql , JavaScript Libraries and MVC frameworks , MEAN, nodejs
I like to contribute to Opensource projects and regularly participate in forums.I have written a book on Integration of WebRTC to Telecom :
Education and Certifications :
I have a Bachelors degree in Information Technology form Anna University India ( 2007-11) with 77 %
Work Experience
- Principle developer for IPC Cloud communication solution Unigy360 .
Senior Developer Contract at IPC Systems, Inc.
Tools used webrtc fcs lib from genband , spidr gateway , Freeswitch SBC , Oracle Communication application server , Radisys media manger .
- Senior Software Engineer at Tech Mahindra R&D Cloud systemsTurret softclient on Webrtc for client IPC System ,Inc , using genband spider signalling gateway and radisys media engine
- Senior Software Engineer at Above Labs Building WebRTC API , signalling and media infrastructure for VOIP , Mp4 parser , media engine , media codecs and bridging , developing algorithms for efficient VOIP mechanisms .
System Engineer
I work on – J2EE ( struts , spring , hibernate , REST WebServices )
Web ( Jboss tools , jquerry , json , AJAX, JSP , Servlets )
SIP , IMS , WebRTCInternships and Industrial Training in College 2007-11
ISRO ( Indian Space Research Organization ) ,
Satish Dhawan Space Centre or Sriharikota Range
Internship for Satellite Communications and Digital Image Processing – 2008
Lister Technologies , SalesForce CRM integration , InternshipAll India Radio Industrial Training
BSNL 10 days workshop on optic fibre
GSOC ( Google Summer Of Code ) -2011
IBM TGMC ( The Great Mind Challenge) – 2010 , 11
I have experience in the design and creation of a variety of telecommunication application ( such as IPTV Parental control, Secure RTP , FMFM ( Find Me Follow Me ) , Enhanced call options ) and a complete understanding of the architecture design . I have an experience of developing webRTC client product with SIP , in a team of four in a short span of 6 months .
Personal
I am organized , enthusiastic and possess outstanding communication skills. Also I have the ability to work under pressure, meet tight deadlines and maintain a friendly environment at all times.
Independent Self Funded Projects
Following are some of my open sourced projects
RamuDroid:
IOT droid to clean roads and outdoors inspired by bharat swachata abhiyan. Abilities of the droid includes , picking up litter form roads , media streaming in realtime , image processing and autonomous decision making through sensory information. Hardware includes Arduino , Rpi B , adafruit BLE , Ultrasonic sensors , GPS , camera module.
Webrtcdevelopment:
Webrtc libraries for common usecase like e learning , p2p call , conference , desktop share , record and playback. Use Cases multiplayer games, collaborative draw , coding , AR and media controls are also available.
About.me : http://about.me/altanai
Academia.edu : https://annauniv.academia.edu/AltanaiBisht
Slideshare : http://www.slideshare.net/altanai
LinkedIn : http://in.linkedin.com/pub/altanai-bisht/11/677/89
Stackoverflow : http://stackexchange.com/users/1481405/altanai?tab=accounts
Github : https://github.com/altanai
Application programming interface Application server Arduino Call routing CSP FFMpeg freeswitch H264 ICE IMS IN Instant messaging IOT IP Multimedia Subsystem Jainslee JavaScript Kamailio Media server NAT OTT ramudroid raspberrypi RTMP RTP RTPengine SBC sdp Security service broker Service harmonization Session Border Controller Session Initiation Protocol Sip sip server SRTP STUN Telecom Telecommunications TFX TURN unified communication VOIP WebRTC Wowza XMPP
Telecom R & D 