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Internship - VOIP Software Solutions for Affected Populations in PHP/Java

Requisition Number:  12379
Contract Type:  Internship/trainee

Betzdorf, LU

6-month internship, starting in the second quarter of 2021.
This is an exciting opportunity to become part of the Software Solutions Engineering team at SES-TechCom in a fast-paced, global organization within an innovative and unique industry.
Based in Betzdorf (Luxembourg), you will develop the proof-of-concept of a transportable phonebooth solution for affected populations. The solution will be based on our Emergency Response platform (https://emergency.lu) distributed VOIP service. The VOIP service is based on FreeSWITCH (https://freeswitch.com/) and FusionPBX (https://www.fusionpbx.com/) technologies.


Extended Job Description:

You will support the definition, development and deployment of a transportable phonebooth for affected populations. Assess the features of our VOIP service as a starting point for the transportable phonebooth proof-of-concept. Examples of those features are: Voice Message to inform credit and time left, Credit Allocation, PSTN integration.

Your responsibilities will be the following:

  • Assess technologies compatible with the current solution.
  • Elaborate an implementation plan.
  • Develop the proof-of-concept of the proposed solution.
  • Integrate your solution with the existing VOIP service.



  • Being a current Bachelor or Master student in ICT or in a relevant technical area;
  • Sound knowledge of IP networks and protocols;
  • Working knowledge of Linux
  • Working knowledge of PHP and Java;
  • Working knowledge of SIP protocol would be an asset;
  • Fluency in spoken and written English with additional languages considered an asset;
  • EU-nationality or work permit for Luxembourg.

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