Fullstack VOIP , WebRTC and media Streams Engineer . I solve real world problems .
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
Experience
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Senior Developer Contract at IPC Systems, Inc.
Principle developer for IPC Cloud communication solution Unigy360 .
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 systems
Turret softclient on Webrtc for client IPC System ,Inc , using genband spider signalling gateway and radisys media engine
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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 .
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System Engineer
I work on – J2EE ( struts , spring , hibernate , REST WebServices )
Web ( Jboss tools , jquerry , json , AJAX, JSP , Servlets )
SIP , IMS , WebRTC -
Internships 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
