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Careers at EXFO


Core Network Engineer



Job summary:


Participate to Professional Services missions that can be delivered either from EXFO premises or in Customer premises.

This mission covers activities such as:

  • Technical assistance on EXFO solution,
  • Network performance and Optimization,
  • EXFO Product training.


What you’ll do :


  • Analyze EPC/CORE CS/IMS/5G Core network performance and investigate the root cause(s) of performance degradations,
  • Perform on demand analysis on specific issues (new performance degradation, customer complaint...),
  • Provide recommendations to the customer to solve the identified issues (IMS or EPC equipment parameter tuning with targeted value),
  • Analyze, develop and create new KPIs, counters, dashboards to complement our solution by added value use cases answering to the major issues that could face a customer,
  • Assist customer’s team in enriching EXFO solution with new use cases.  Enhance EXFO tools with specific KPIs and new dashboards in a Big Data and virtualized environment,
  • Perform workshops to transfer telecom knowledge and/or knowledge about EXFO / ASTELLIA solutions to customer’s team,
  • Provide technical advice and support to customers and others teams in EXFO,
  • Participate to customer presentation in order to expose the findings and recommendations from the analysis.


What we’re looking for :

Technical skills

  • Good knowledge of EPC, IMS KPIs and their impact on the subscriber experience,
  • A first experience with one of the following vendors Nokia, Ericsson, Huawei,
  • Ability to work with a team with different competencies,
  • Knowledge of EXFO’s solutions will be valuable.


Required aptitudes

  • Results oriented with focus on service quality and customer satisfaction,
  • Be autonomous in customer environment,
  • Team player, open communication and ability to work in international environment,
  • Problem solving capabilities,
  • Excellent written & verbal communication skills,


Must have :

Experience: Minium 1 year in Telecommunications, on Core Network Performance and Optimization.

Education: Graduated computer science or telecommunications engineer (or equivalent).

Availability to travel on regular basis for missions from couple of days to couple of weeks (2 weeks).


Language requirements: Fluent in French and English.

Work permit in France mandatory.


Any other combination of experience/studies will be considered.

Core Network Engineer Rennes, France | Posted December 13, 2021

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