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Wireless Engineer III - 5G
Englewood, CO  |  Onsite
Contract Position
It appears that you have already applied to this job.
Applied on July 4, 2022
Job Id #56683 Posted June 3, 2022

Job Description:

The Wireless Network Core Engineer is responsible for Network support and troubleshoot of 5G Core network issues. This candidate plays a key role in providing Tier-3 support in resolving 5G Core networks issues reported from preproduction as well as production issues. The Wireless Network Core Engineer. The candidate must have complete understanding of 5G call flows and experience in troubleshooting 5G core subsystem elements like NR-RAN, AMF, PCF, SMF, CHF, AUSF, UDM, UDR, NRF UPF, CBRS, Mediation platforms etc.. The candidate must also have knowledge in Routers, Gateways, Docker containers and Kubernetes. Candidate also collaborates with Vendors, internal Network Architects and Product Development teams as required. The candidate primarily works in lab environment during testing, recreating issues and troubleshooting lab and field reported tickets.

  • Supporting 5G gNB,  Modem/Smallcell functional and troubleshooting.
  • Must have excellent problem solving, debugging and troubleshooting skills of 5G Core Network Architecture and interfaces and troubleshooting skills in 5G Core Interfaces (N1, N2, N3, N4, N6, N8, N10, N12…) 5G RAN components as RRU, DU/CU for vRAN configuration
  • Thorough understanding & Hands-on experience in Core Network Elements AMF, UPF, AUSF/ AAA, UDM, NSF.
  • Knowledge in CBRS and FFC requirements (3.5GHz).
  • Through knowledge in virtualization platforms, Docker containers and Kubernetes.
  • Actively and consistently support all efforts to simplify and enhance the customer experience
  • Provides support for escalated support across organizations 
  • Works with third party vendors for resolution or gets support as needed.
  • Coaches less experienced staff
  • Adhere to industry specific local, state, and federal regulations, as applicable
  • Know, understand and follow company policy. Perform other duties as requested by supervisor

Skills / Abilities and Knowledge 
  • Should have excellent knowledge in Testing and Troubleshoot 5G Mobile Wireless core Networks  
  • Excellent knowledge in virtualization platforms, Dockers and Kubernetes
  • Hands on experience using protocol communications test equipment and test tools.
  • Experience in testing and troubleshooting IP core network and E2E call flows. 
  • Must possess excellent industry knowledge and theoretical understanding of 3GPP, IEEE 802.11 
  • Experience with testing all Layers 1 thru 7 networks
  • Knowledgeable with bug tracking and ticketing systems like Jira, Remedy etc.. 
  • Extensive hands-on experience using network test equipment, such as Ixia, Spirent, Fluke Networks, IBB, Spectrum Analyzers, Site Survey Planning tools, and Traffic Generators.
  • Strong work ethic with a desire to meet and exceed personal and business goals
  • Self-motivated to take ownership of assigned projects, tickets and deliverables
  • Ability to work both in a team and independently on assigned projects
  • Strong verbal and written communication skills
  • Learns and adapts to new technologies and methodologies.  
  • Ability to work with little supervision to execute and troubleshoot highly technical and complex issues
  • Possesses strong analytical skills and attention to details

  • Bachelor's Degree in Computer Science, Electrical Engineering, or equivalent work experience
  • Professional level certification or equivalent work experience
Related Work Experience        
  • 7+ years of professional experience in an MSO/ISP Networking operations support or Engineering 
  • Office Environment
  • Network Lab environment 
  • Exposure to continuous moderate noise
  • Work performed near power lines and electricity
  • Occasional travel as required

Horizontal is proud to be an Equal Opportunity and Affirmative Action Employer. We seek to provide employment opportunities to talented, qualified candidates regardless of race, color, sex/gender including gender identity and/or expression, national origin, religion, sexual orientation, disability, marital status, citizen status, veteran status, or any other protected classification under federal, state or local law.

In addition, Horizontal will provide reasonable accommodations for qualified individuals with disabilities. If you need to request a reasonable accommodation in order to complete the application or interview process, please contact

All applicants applying must be legally authorized to work in the country of employment.


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You are considered to have a disability if you have a physical or mental impairment or medical condition that substantially limits a major life activity, or if you have a history or record of such an impairment or medical condition.

Horizontal is proud to be an Equal Employment Opportunity/Affirmative Action Employer providing a drug-free workplace.


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