VOIP,SIP Design and development

Sonsoft Inc

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Philadelphia, PA, us on site Until 8/21/2026 H-1B sponsor history First posted February 23, 2026 Last posted February 23, 2026
Job description

Sonsoft , Inc. is a USA based corporation duly organized under the laws of the Commonwealth of Georgia. Sonsoft Inc. is growing at a steady pace specializing in the fields of Software Development, Software Consultancy and Information Technology Enabled Services.

  • At least 4 years of development experience in VoIP, SIP, IMS design and Development with
  • in-depth knowledge of SIP/IMS protocols and VOIP network
  • Experience in cable domain and DOCSIS will be a plus
  • At least 2 years of experience in in Design, Development and Integration of telecom
  • applications
  • Ability to work in team in diverse/ multiple stakeholder environment
  • Experience and desire to work in a Global delivery environment

  • At least 4 years of development experience in VoIP, SIP, IMS design and Development with
  • in-depth knowledge of SIP/IMS protocols and VOIP network
  • Experience in cable domain and DOCSIS will be a plus
  • At least 2 years of experience in in Design, Development and Integration of telecom
  • applications
  • Ability to work in team in diverse/ multiple stakeholder environment
  • Analytical skills
  • Experience and desire to work in a Global delivery environment
  • The job entails sitting as well as working at a computer for extended periods of time.

 ** U.S. Citizens and those who are authorized to work independently in the United States are encouraged to apply. We are unable to sponsor at this time.

Note:-
1.This is a Full-Time & Permanent job opportunity for you.
2.Only US Citizen Green Card Holder GC-EAD,& TN  can apply.
3.No  H4-EAD  L2-EAD  OPT-EAD, H1B  candidates please.
4.Please mention your Visa Status in your email or resume.

About this role

Summary

Design, develop, and integrate VoIP, SIP, IMS telecom applications in a team environment.

Job title

VOIP,SIP Design and development

Experience level

4+ years

Industry

software

Location requirements

Philadelphia, PA, US; on-site work required

Salary

Not specified

Visa sponsorship

H-1B sponsor history

Management role

No

Skills & keywords

Required skills

VoIPSIPIMSprotocolsVOIP network

Preferred skills

cable domainDOCSIS

Specializations

VoIPSIPIMStelecom
Locations

Structured locations inferred from the posting.

Philadelphia, PA, USA

On-site City