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Kaushik Parmar
@kaushik512
Level 2
Mobile and VoIP developer
Inde
Anglais, Hindi, Gujarati
À propos de moi
🚀 VoIP Specialist | Expert Flutter, ReactNative, ReactJS, NodeJS, Android & iOS Developer
- With 12+ years of experience, I specialize in VoIP development, WebRTC, and SIP-based mobile & web dialers using WebRTC, Linphone, JSSIP, SIPJS, and PJSip.
- Proficient in ReactJS, NodeJS, NextJS, ExpressJS & Angular for web solutions.
- Successfully delivered 70+ mobile apps in Flutter, ReactNative, Android & iOS.
Whether it's design, development, or project management, I bring quality & innovation to every project. Let's build something amazing! 💡
Compétences
Kaushik Parmar
30 $US/heure
hors ligne •
Temps de réponse moyen de 2 heures
Voir mes services
Développement multiplateforme
I will develop voip or webrtc softphone using linphone, pjsip, jssip, or sipjs
VoIP et Téléphonie
I will install and configure asterisk , freeswitch , astpp webrtc voip servers
Vous souhaitez travailler sur une base horaire ?
Dites à Kaushik Parmar ce dont vous avez besoin.
30 $US
/
heurePortfolio
Expérience professionnelle
VoIP and WebRTC Development
Sheerbit Technologies • Temps plein
Jan 2021 - Present • 5 yrs 4 mos
I have over 12+ years of experience delivering advanced VoIP and WebRTC solutions. As a freelancer, I have successfully developed and deployed custom SIP-based softphone applications for Android and iOS, WebRTC browser calling platforms, and complete call center systems tailored for startups and enterprises. Worked on WhatsApp and Telegram clone applications for enterprise to have their own chat and conference calling Application. My work includes Asterisk, FreeSWITCH, OpenSIPS, and Kamailio integrations, SIP trunk configuration, DID provisioning, IVR systems, call routing logic, and secure TLS/SRTP implementation. I have also built CRM-integrated dialers, multi-tenant PBX platforms, in-app calling systems similar to Uber, call recording modules, push notification systems, and scalable VoIP infrastructures hosted on cloud and Kubernetes environments. I have delivered more than 30+ softphone and telecom projects globally with strong focus on performance, security, and production stability, maintaining 100% client satisfaction.
46 Avis
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I have had an awful experience with Kaushik. He is a liar and not a reliable developer!!! Terrible at communicating ! We divided the project into 2 phases. When he completed phase 1 (server setup+tests and verifications), he told me that everything was working, and I paid for phase 2. I could not test...
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andrewheath394
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This one one of the best choices I made for my company by working with Kaushik! Thank you so much!
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jfbarsocchi
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Very satisfied of the work. All workers at celloip are good persons, I will ask them for my future projects
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