Engineer-System Performance - II

Apex Systems

Irvine (CA)

Hybrid

USD 95,000 - 135,000

Full time

3 hours ago
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Job summary

Everforth Apex is a leading IT services company seeking a Network Performance Engineer in Irvine, CA (Hybrid) to optimize LTE/5G networks and drive performance initiatives.

The role requires 3–5 years of experience, Ericsson RAN/EMS/OSS expertise, VoNR/VoLTE testing, data analysis tools, and strong reporting abilities. Collaboration with regional teams and HQ is essential.

Qualifications

  • Bachelor’s degree in Engineering.
  • Knowledge of LTE and 5G including VoLTE and RAN networks.
  • Knowledge of data collection tools such as Datapro, DMAT, TEMs.
  • Knowledge of data analysis/post-processing tools such as DMAT, Irisview, Windcatcher/Actix.
  • Knowledge of propagation and optimization modeling tools such as Atoll, GeoPlan.
  • Knowledge of programming languages such as C++, Python, Perl, Unix, scripting tools.
  • Knowledge of mapping software such as Google Earth, MapInfo, ArcGIS, Topo.
  • Knowledge of Ericsson systems including OSS and 3GPP LTE/5G standards.
  • Ability to differentiate and diagnose RAN and CORE related problems.
  • Understanding of IMS and systems engineering aspects related to RAN and proficiency in Core level call flow analysis.

Responsibilities

  • Responsible for collecting and using hourly and daily service measurement data to optimize the LTE network.
  • Representing the team for feature related projects, new node integration, and other centralized tasks by meeting deliverables and holding other parties accountable per project plan.
  • Troubleshooting hardware and performance problems independently or by coordinating with other teams.
  • Supporting Network Performance in evaluating and improving areas of poor coverage by identifying system performance problems.
  • Reporting issues to appropriate engineers.
  • Resolving customer service issues, assisting in implementing solutions, and collecting drive test data in support of performance evaluations and build program prioritization.

Skills

4G/5G operations
Troubleshoot 4G/5G
VoNR & VoLTE
SIP protocol
Trend analysis
Call flow analysis
Ericsson RAN/EMS/OSS
Core networking
Root cause analysis
Performance optimization
Report writing
Presentations
Coordinate investigations

Education

BSEE

Tools

Datapro
DMAT
TEMs
Irisview
Windcatcher/Actix
Atoll
GeoPlan
C++
Python
Perl
Unix scripting
Google Earth
ArcGIS

Job description

  • Responsible for collecting and using hourly and daily service measurement data to optimize the LTE network.
  • Representing the team for feature related projects, new node integration, and other centralized tasks by meeting deliverables and holding other parties accountable per project plan.
  • Troubleshooting hardware and performance problems independently or by coordinating with other teams.
  • Supporting Network Performance in evaluating and improving areas of poor coverage by identifying system performance problems.
  • Reporting issues to appropriate engineers.
  • Resolving customer service issues, assisting in implementing solutions, and collecting drive test data in support of performance evaluations and build program prioritization.

Job#: 3047830

Job Description:
Location:

Irvine, CA (Hybrid)

Description:

Targeted Years of Experience: 3-5 years

Responsibilities:
  • Responsible for collecting and using hourly and daily service measurement data to optimize the LTE network.
  • Representing the team for feature related projects, new node integration, and other centralized tasks by meeting deliverables and holding other parties accountable per project plan.
  • Troubleshooting hardware and performance problems independently or by coordinating with other teams.
  • Supporting Network Performance in evaluating and improving areas of poor coverage by identifying system performance problems.
  • Reporting issues to appropriate engineers.
  • Resolving customer service issues, assisting in implementing solutions, and collecting drive test data in support of performance evaluations and build program prioritization.
MUST HAVE SKILLS (Most Important):
  • Knowledgeable with 4G and 5G operations
  • Able to troubleshoot common 4G and 5G issues
  • Familiar with VoNR, Volte operation and SIP protocol
  • Able to use trending tools and to produce presentations
  • Call flow analysis skills
  • Hands on experience with Ericsson RAN, EMS/OSS and core. Experience in running scripts and parameters changes.
  • Evaluating service performance trends and isolating root causes of impacted services.
  • Performing VoNR, VoLTE testing and analyses of relevant key performance indicators.
  • Coordinating technical investigations and testing with appropriate regional, area and HQ functions.
  • Providing technical analysis, troubleshooting, and training assistance to markets and regions as requested.
  • Optimizing LTE, 5G, and RAN networks using traditional and innovative means.
  • Investigating and resolving customer complaints regarding service.
  • Good at producing reports and presentations
DESIRED SKILLS:
  • Bachelor’s degree in Engineering with two or more years of work experience.
  • Knowledge of LTE, 5G including VoLTE and RAN networks.
  • Knowledge of at least one data collection tool such as Datapro, DMAT, TEMs
  • Knowledge of data analysis/post-processing tools such as DMAT, Irisview, Windcatcher/Actix
  • Knowledge of propagation and optimization modeling tools such as Atoll, GeoPlan
  • Knowledge of programming languages such as C++, Python, Perl, Unix, scripting tools.
  • Knowledge of mapping software such as Google Earth, MapInfo, ArcGIS, Topo.
  • Knowledge of Ericsson systems including OSS and 3GPP LTE/5G standards.
  • Ability to differentiate and diagnose RAN and CORE related problems.
  • Understanding of IMS and systems engineering aspects related to RAN and proficiency in Core level call flow analysis.
EDUCATION/CERTIFICATIONS:
  • BSEE or other Engineering

Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.

Everforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Everforth Apex team member can provide.

Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.

If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at [email protected] or 804-523-8228. Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.

© 2026 Everforth, Inc. All rights reserved.

Everforth Apex Systems is part of the Commercial Segment of Everforth, Inc.

NYSE: EFOR

4400 Cox Road

Suite 200

Glen Allen, Virginia 23060

Everforth Apex is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Benefits Department at [email protected] or 804-523-8228. (Do not submit resumes or solicit consultants to this email address). UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex.

UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex.

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