CALL 18-2019-1 - Researcher position in Communication Networks Division – Mobile networks departments”

30 July 2019 - Expires: 30 August 2019

The Communication Networks Division of the CTTC is searching for interested candidates in a researcher/research assistant position in its Mobile Networks Department.

We are looking for a researcher interested in and capable of designing and developing network simulators for 5G networks. Therefore, the ideal candidate should demonstrate background the following areas: cellular mobile communication systems, LTE/NR, LAA, LTE-U, NR-U, and experience in implementation of system level simulators. In particular, the candidate will be required to build new 5G modules in the context of the ns-3 open source simulator. As a result, previous experience and contribution, ideally at maintainer level, to the ns-3 open source project is mandatory. In particular, knowledge of LTE and NR in unlicensed, and of their implementation in ns-3 branches would be highly valued.

Accordingly, the researcher has to be able to demonstrate very specific developer abilities: excellent programming skills in C/C++ and Python; knowledge of ns-3 module development and ns-3 event scheduling; knowledge of development toolchain waf; knowledge of ns-3 test environment; knowledge of Linux distributions and command line interface, including shell/bash scripting and system variables; demonstrated previous experience with debugging tools like gdb, DDD, etc. and Valgrind; in-depth knowledge of version control system Mercurial (and GitHub); and knowledge of pcap trace analysis and related tools for network protocol analysis (e.g., Wireshark, Tcpdump, etc.). Knowledge of Integrated development environments (IDE), e.g., Eclipse, Kdevelop, or NetBeans and having developed simulation execution automation tools is also a plus. Finally, research will be conducted in the area of machine learning based network optimization, so previous experience and publications in this area, will be highly appreciated.


Interested candidates must be strongly motivated, hold an MSc. degree in telecommunications, electrical engineering, computer science, or related area, and have the capacity of carrying out collaborative innovative research.


The position is associated to an industrial contract, funded through a US agency, of the initial duration of 12 months and extendable up to 48 months. The salary would be defined according to previous experience and skills of the interested researcher, and it will be in the range of 25K-30Keuros. Researchers interested in joining the Mobile Networks Department should send their curriculum vitae, including list of publications, and the names and addresses of at least two referees. These documents should be sent in PDF format through this online application. CVs and any other information gathered during this process will be handled confidentially.

 Communication Networks Division – CTTC

Centre Tecnològic de Telecomunicacions de Catalunya (CTTC), in Castelldefels – Barcelona, is a growing and well-funded research institution fostering excellence and diversity. CTTC offers a highly international environment at an exceptionally attractive location. As a research center in telecommunications technologies CTTC provides a fertile environment for research cooperation and innovation between different disciplines. More specifically, the Communication Networks Division (COMNET) aims at providing an integrated end-to-end view of mobile and transport, optical and wireless, access and core networks by exploiting SDN and NFV architectural principles. For more information, please visit

Inside the COMNET division, the Mobile Networks department focuses on the design and optimization of programmable heterogeneous and dynamic mobile and wireless networks through theoretical, simulation, and experimental work combining cloud computing, data networking, and mobile networking, including SDN and NFV in the RAN, backhaul/fronthaul, and core. For more information, please visit:

CTTC seeks to increase the number of women in those areas where they are underrepresented and therefore explicitly encourages women to apply.

CTTC is committed to increasing the number of individuals with disabilities in its workforce and therefore encourages applications from such qualified individuals.