I need VoIP developer

For our project [url removed, login to view] we are currently looking for VoIP Developer.



•Full-lifecycle commercial experience in the development of VoIP platforms

•Strong OpenSIPS development skills

- load balancers

- registration servers

- HA solutions

•Strong FreeSWITCH development skills

- billing solutions

- multitenant solutions

- geolocated servers

- HA solutions

- scripts in LUA

- anti fraud solutions

•Self-starter who is able to "hit the ground running"

•Familiar with structured software development / quality processes

•Experienced in the creation and use of requirements documents, specifications, designs, unit test plans etc

•Demonstrable communication and team working skills




•UML, Use Cases or similar notations

•Customer-facing experience

Extra notes: You must be able to communicate in English in writing and speaking

You must be able to work and be contactable between 8 a.m. - 6 p.m. Central European Time - same hours as we

Most preferable developers from Poland / Poznań, but we are open for remote work

Compétences : VoIP

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Concernant l'employeur :
( 7 commentaires ) Poznan, Poland

Nº du projet : #6859045

7 freelance font une offre moyenne de $25/heure pour ce travail


I m a voip professional having extensive experience in voip/asterisk/freeswitch and opensips. I can configure the opensips the way you want . Kindly check my profile to check my abilities you can reach me on sk Plus

$27 USD / heure
(11 Commentaires)

ready to work with OpenSIPS in your project.

$30 USD / heure
(3 Commentaires)

Hello, thanks for the invitation. I have a local company with several skill collaborators including the skills you need, but our strong skill is Asterisk developing, as you didn't mentioned not sure if asterisk is some Plus

$16 USD / heure
(5 Commentaires)

A proposal has not yet been provided

$25 USD / heure
(0 Commentaires)

I match your [login to view URL] is my profile. 1) I have around 10 years of experience in Software development specially in SIP, VoIP. 2) Executed the full life cycle for the VoIP Software Development. From Requireme Plus

$25 USD / heure
(0 Commentaires)

Hello, We have around 5 years of experience in VoIP development. We have developed a wide range of VoIP dialers for iPhone, blackberry and androids. We can provide you the demonstration for the same. We have deve Plus

$25 USD / heure
(0 Commentaires)

-Technologist and Network Architect with real-world product/service development experience -Deep understanding of telephony (SS7, ISUP, SIP/IMS, etc.) -Former owner of a U.S. based licensed/regulated CLEC -Designed Plus

$30 USD / heure
(0 Commentaires)