CALL 11-2020-1 - Researcher position in Communication Network Division – Mobile networks departments

29 April 2020 - Expires: 29 May 2020

The Communication Networks Division of CTTC invites applications for a researcher 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 in as many as possible areas out of the following list:

  • Cellular mobile communication systems, LTE/NR,
  • WiFi/WiGiG networks, 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. Therefore, previous experience and contribution, at developer level, to the ns-3 open source project is a plus. 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, background in the area of computer science and in the design of scalable and high fidelity system simulations, is also a plus.

Interested candidates must be strongly motivated, hold a MSc or a PhD, in the areas of telecommunications, electrical engineering, computer science, or related area. They should demonstrate strong oral and written English communication skills. Finally, capability to demonstrate a strong publication record and the capacity of carrying out innovative research, is a plus.


The contract duration for the potential position would be 24 months. The position is associated to a multi-year industrial contract, funded through a US federal agency. The contract is renewable subject to performance and budgetary constraints, till the end of the project. Depending on the applicable labor law, budget availability and the performance of the selected candidate, the contract may also be extended beyond the duration of this specific project.

The salary will be in the range of 28-37 k€ (gross per year). Professional category and salary will be determined according to qualifications and work experience.


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, which will remain open during 1 month starting from 29th April 2020. 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 offers a young and multi-cultural environment aimed at fostering excellent research and development activities, providing access to an outstanding research network, top-tech labs, and all tools needed to conduct top-quality research and development activities.

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.