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Careers at EXFO


Senior RAN engineer



Job summary

As a Senior RAN engineer you will lead or participate to Professional Services missions that can be delivered either from EXFO premises or in Customer premises. That will cover activities such as:

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


What you’ll do

  • Regular and close contact with customers in the context of the execution of the services,
  • Lead and coordinate professional services projects,
  • Analyse 2G-3G-4G-5G RAN network performance and investigate the root cause(s) of performance degradations (using Internal SW and customer’s OSS counters),
  • Perform audits of 2G, 3G, 4G & 5G Radio Access networks,
  • Perform on demand analysis on specific issues (new performance degradation, customer complaint...),
  • Provide recommendations to the customer to solve the identified issues (parameter tuning with target value, new network settings, neighbouring plan…),
  • Load configuration parameter changes and track them,
  • Apply FOA procedures for new feature introduction,
  • Perform workshops to transfer telecom knowledge and/or knowledge about EXFO / ASTELLIA solutions to customer’s team,
  • Participate to customer presentation in order to expose the findings and recommendations from the analysis,
  • Prepare and review all technical materials before delivering them to customers,
  • Promote our tools and services during execution of the projects,
  • Collaborate with R&D team with requirements and ideas to enable the development of value-added services or new product functionality to increase EXFO offering value.


What we’re looking for

What we’re looking forWha

  • At least 7 years’ experience as a RAN Network Performance and Optimization Engineer including Radio and Transmission experience,
  • Technical expertise in optimization, troubleshooting and performance for all technologies (2G, 3G, 4G and 5G),
  • Experience in LTE/VoLTE networks, and 5G NSA networks,
  • Deep knowledge of vendor tools and equipment especially HUAWEI, NOKIA & ERICSSON,
  • Knowledge of EXFO’s solution would be a plus.


Detailed skills

  • E2E Network Performance Management (a better expertise is required on Radio & Transmission but Core must not be neglected),
  • 5G NR NSA and SA technical knowledge and practical expertise in planning and/or optimization,
  • A strong knowledge in one or many of the following vendors Nokia, Ericsson, Huawei,
  • Good knowledge of RAN KPI monitoring and troubleshooting,
  • Strong knowledge of 2G/3G/4G/5G RAN KPIs and their impact on the subscriber experience,
  • Good ability to analyze and troubleshoot on degraded KPIs,
  • Good ability to elaborate and provide optimization recommendations,
  • Support implementation of optimization measures,
  • Reporting and good analytics level,
  • Knowledge on Exfo Worx or other tool for Active IP testing would be a plus.            
  • Skills in IP Mobile Backhaul Network Architecture/transport and protocols like Twamp would be a plus.


Required aptitudes

  • Good communication skills in meetings, conferences and presentations,
  • Ability to work with a team composed by different skill competencies,
  • 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,
  • Project management ability, with good reporting to higher level and management,
  • Problem Solving capabilities,
  • Willing to travel for short and medium term periods


Must have


Experience: Minimum of 7 years’ experience in Telecommunications or IT, RAN Network Performance and Optimization Services. Customer care field experience would be a plus,

Language requirements: Fluent in Spanish and English, French would be a plus

Education: BS/MS Degree level in Telecommunications or Computer Science or equivalent

Availability to travel on regular basis.



Any other combination of experience/studies will be considered.

Senior RAN engineer Valencia, Spain | Posted December 2, 2021

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