Company Name : 4z.com Sàrl
Company Location : Lausanne, Canton of Vaud, Switzerland
Job description
4z.com Sàrl is looking for a motivated junior developer with the following profile for an immediate hire:

Engineer with knowledge of mathematics and analytic thinking.

We require not only coding skills but analytic thinking, experience in processing of large data sets, in optimization of algorithms.

Programming/coding skills (average of several thousand lines per project)

-Programming: C, C ++
-Scripting: bash, perl, python, PhP
-Databases: MySQL
-Administration of UNIX / Linux servers-Network knowledge: IP protocol (TCP / UDP), IP address / IP routing, sockets
-VoIP: SIP, Asterisk, FreeSWITCH, Kamailio-Traffic Analysis Tools: ngrep and wireshark
-Redundancy, cluster, cloud concepts
-Knowledge of DNS, IMAP, SMTP, LDAP, Dovecot


Responsibilities:
You will participate in all operational processed such as:
Analysis of the current network
Optimization of the network infrastructure
Generation of statistics
Analysis of network data
Development of fraud detection and prevention systems
Development of new monitoring systems
Comparison of various telephony systems and stress tests
Generation of large number of calls for stress tests
Comparison and diagnostic of various voip billing solutions
Benchmark of various voice and video codecs
Participation in the development of new services

Languages:
French
English

You are:
-A motivated, organized, dynamic person with a common sense with an analytic thinking and fundamental knowledges.
-You have the ability to concentrate on the current project.
-The will to complete your projects is in your nature.
-You document your own work.

Trial
Those candidates who successfully pass the interview and tests at distance, need to pass/do 1 full week intensive test in the office which will be paid, depending on the project.