Back to jobs
New

Network Engineer, Mobile Core Network Services 

Bellevue, Washington
Build More Than Just a Career. Build Your Future.

At Vailexa, we’re not just hiring — we’re building thinkers, creators, and future leaders.

We believe in giving people the space to grow, the freedom to think, and the opportunity to create real impact from day one. If you’re someone who wants to learn fast, take ownership, and grow beyond limits, you’ll feel right at home here.

Job Title: Network Engineer, Mobile Core Network Services                       

Location: Bellevue, Washington 98004

Onsite/Remote: Onsite (5 days/week) (Local Candidates)

Previous Cisco Experience Required: Needs to be extremely well-versed in all things Cisco / Cisco products

 Position Overview/Role Summary:

Client is seeking an experienced Network Engineer to support testing, deployment, upgrades, and operational optimization within a mobile core networking environment. This role will focus on validating network solutions, supporting production implementations, consulting on network design, and providing technical expertise during large-scale network initiatives. The ideal candidate brings strong hands-on experience with mobile core technologies, network testing methodologies, and production network support.

 

Responsibilities:

  • Provide technical guidance and advisory support for network enhancements, infrastructure upgrades, and architecture improvements.
  • Collaborate with stakeholders to understand testing objectives, technical requirements, and business goals.
  • Develop, execute, and document network test plans and communicate results through professional reporting.
  • Support the design, implementation, and validation of laboratory environments, feature enhancements, and infrastructure upgrades.
  • Create migration documentation and support activities associated with transitioning solutions from laboratory environments into production.
  • Provide technical insight during escalation activities and collaborate with support organizations to accelerate service restoration.
  • Consult on network architecture with emphasis on resiliency, scalability, performance, and service quality.
  • Review and assess proposed network changes for risk, impact, and implementation readiness.
  • Support major deployment events and assist with troubleshooting hardware and configuration issues.
  • Share technical knowledge through documentation, informal training sessions, and knowledge transfer activities.
  • Participate in recurring customer meetings, service reviews, and operational planning discussions.
  • Contribute to operational reporting, risk assessments, and future planning activities.

 

Required Qualifications:

  • Experience supporting mobile core network environments, including packet core technologies.
  • Strong understanding of 5G networking concepts and call flow analysis.
  • Experience developing and executing structured network testing plans.
  • Ability to create technical documentation, including test reports, implementation plans, migration guides, and operational reports.
  • Experience supporting production network deployments and infrastructure upgrade activities.
  • Knowledge of network design principles including resiliency, scalability, fault recovery, and Quality of Service.
  • Experience evaluating implementation procedures and conducting change impact assessments.
  • Strong troubleshooting skills for network hardware, software, and configuration issues.
  • Excellent verbal and written communication skills.
  • Ability to work onsite during standard business hours (8 AM - 5 PM)
  • Ability to participate in after-hours deployment activities and respond to critical incidents when required.

 

Preferred:

  • Experience working within large enterprise or service provider network environments.
  • Experience supporting laboratory to production migration initiatives.
  • Previous experience delivering technical workshops, training sessions, or knowledge transfer activities.
  • Industry certifications related to networking or telecommunications.
  • Experience participating in customer-facing technical reviews and operational governance meetings.

 

Tools & Technologies:

  • Cisco Enhanced Packet Core
  • 5G Mobile Networks
  • Network Testing and Validation Tools
  • Packet Analysis and Troubleshooting Tools
  • Network Monitoring Platforms
  • Technical Documentation Tools
  • Change Management Processes

Working Conditions

  • Standard business hours coverage, 5 days per week; occasional overtime coverage may be required and must be approved.
  • Onsite presence required; unplanned/unscheduled absences are not permitted without prior formal notice and approval.
  • Planned absences (e.g., vacation) require advance written approval to avoid resource overlap.

Ready to take the next step?

If you’re excited about this role and ready to grow with a team that values ambition, ideas, and impact — we’d love to hear from you.

👉 Apply now and start building your journey with Vailexa.

Apply for this job

*

indicates a required field

Resume/CV

Accepted file types: pdf, doc, docx, txt, rtf

Cover Letter

Accepted file types: pdf, doc, docx, txt, rtf

Select...
Select...
Select...

Voluntary Self-Identification

For government reporting purposes, we ask candidates to respond to the below self-identification survey. Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiring process or thereafter. Any information that you do provide will be recorded and maintained in a confidential file.

As set forth in Vailexa ’s Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law.

Select...
Select...
Race & Ethnicity Definitions

If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection. As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measure the effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categories is as follows:

A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability.

A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.

An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.

An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.

Select...

Voluntary Self-Identification of Disability

Form CC-305
Page 1 of 1
OMB Control Number 1250-0005
Expires 04/30/2026

Why are you being asked to complete this form?

We are a federal contractor or subcontractor. The law requires us to provide equal employment opportunity to qualified people with disabilities. We have a goal of having at least 7% of our workers as people with disabilities. The law says we must measure our progress towards this goal. To do this, we must ask applicants and employees if they have a disability or have ever had one. People can become disabled, so we need to ask this question at least every five years.

Completing this form is voluntary, and we hope that you will choose to do so. Your answer is confidential. No one who makes hiring decisions will see it. Your decision to complete the form and your answer will not harm you in any way. If you want to learn more about the law or this form, visit the U.S. Department of Labor’s Office of Federal Contract Compliance Programs (OFCCP) website at www.dol.gov/ofccp.

How do you know if you have a disability?

A disability is a condition that substantially limits one or more of your “major life activities.” If you have or have ever had such a condition, you are a person with a disability. Disabilities include, but are not limited to:

  • Alcohol or other substance use disorder (not currently using drugs illegally)
  • Autoimmune disorder, for example, lupus, fibromyalgia, rheumatoid arthritis, HIV/AIDS
  • Blind or low vision
  • Cancer (past or present)
  • Cardiovascular or heart disease
  • Celiac disease
  • Cerebral palsy
  • Deaf or serious difficulty hearing
  • Diabetes
  • Disfigurement, for example, disfigurement caused by burns, wounds, accidents, or congenital disorders
  • Epilepsy or other seizure disorder
  • Gastrointestinal disorders, for example, Crohn's Disease, irritable bowel syndrome
  • Intellectual or developmental disability
  • Mental health conditions, for example, depression, bipolar disorder, anxiety disorder, schizophrenia, PTSD
  • Missing limbs or partially missing limbs
  • Mobility impairment, benefiting from the use of a wheelchair, scooter, walker, leg brace(s) and/or other supports
  • Nervous system condition, for example, migraine headaches, Parkinson’s disease, multiple sclerosis (MS)
  • Neurodivergence, for example, attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder, dyslexia, dyspraxia, other learning disabilities
  • Partial or complete paralysis (any cause)
  • Pulmonary or respiratory conditions, for example, tuberculosis, asthma, emphysema
  • Short stature (dwarfism)
  • Traumatic brain injury
Select...

PUBLIC BURDEN STATEMENT: According to the Paperwork Reduction Act of 1995 no persons are required to respond to a collection of information unless such collection displays a valid OMB control number. This survey should take about 5 minutes to complete.