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Professional Services Consultant

United States


Job summary

EXFO is looking for a CORE EPC and CORE CS/IMS Optimization Engineer located in USA, to lead the EXFO projects in the region in the context of 5G SA deployment.

This mission covers activities such as:

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


What you’ll do

Part of EXFO technical teams, you will be performing core optimization activities

  • 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 solutions to customer’s team,
  • Provide technical advice and support to customers and other 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

  • Deep knowledge in CORE architecture, especially in IMS for VoLTE.
  • 5G SA or NSA LAB experience
  • Deep knowledge of vendors tools and CORE equipment: ERICSSON and NOKIA
  • Knowledge and exposure to different switching network, signaling, telecom standards and implementations, end-to-end knowledge on Rel4 Voice over LTE call flow and/or deployment, feature testing/verification
  • Experience with signaling protocols like SIP, SIP-I, BICC, MAP, ISUP, TCP/IP, Diameter, GTP C/U, PFCP and JSON.
  • Understanding of Mobile Network different interfaces i.e. Iu, A, Gx, Gy, S1, S11, S5, S6a, SGS, SGi, ISC, Mg, SBI, N1/N2, N3/N4, Cx, Sh, Ro, Rf, Gm, Sxa, Sxb, etc.
  • Will be also valued:
    • Knowledge of EXFO’s solutions
    • Experience on Traffic simulators
    • Basic experience in RAN
    • Knowledge of advanced routing concepts in open MSS


Required aptitudes

  • Results oriented with focus on service quality and customer satisfaction.
  • Good presentation skills to explain and show the value of results to the Customer.
  • Team player, open communication, and ability to work in international environment.
  • Excellent written & verbal communication skills,


Must have

Required experience: At least 5 years in Mobile Core network including 2 years in Core Optimization

Language requirements: English speaker, Spanish will be valuable.

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



Any other combination of experience/studies will be considered.

Professional Services Consultant Richardson, United States | Posted 2022年6月13日




Thank you.