Sr. Network Engineer

Mbi Llc; Newark (NJ); On-site; USD 80,000 - 100,000; Full time

Job summary

Mbi Llc is seeking a qualified candidate to design and implement enterprise network and wireless infrastructure across NJ Transit facilities. Responsibilities include supporting 24x7 operations for transportation networks and ensuring high availability for critical systems.

The ideal candidate holds a Bachelor’s Degree in Computer Science or a related field with at least four years of experience in telecommunications, especially with wireless technologies like LTE and 5G. Fieldwork and some after-hours support are required.

Qualifications

• Four or more years of applied experience in telecommunications field.
• Experience in a major PBX and/or network environment.
• Knowledge of wireless network architecture and mobile communications infrastructure.

Responsibilities

• Designs, implements, supports enterprise network/wireless infrastructure.
• Configures wireless cellular technologies including LTE, 5G, and DAS.
• Performs cellular signal analysis and coverage validation.
• Supports out-of-band connectivity solutions for infrastructure management.
• Evaluates proposals for telecommunications equipment and services.

Skills

CradlePoint Modem Device Configuration

LTE

5G

DAS

Wireless WAN solutions

Cisco

RF fundamentals

Carrier network services

Cisco Wireless certifications

Education

Bachelor's Degree in Computer Science or related major

Tools

Cisco

Cradlepoint

Sierra Wireless

Digi

Aruba

Job description

Responsibilities

• Designs, implements, supports, and maintains enterprise network/wireless infrastructure across NJ Transit facilities including data centers, rail stations, bus garages, office buildings, transportation hubs, dispatch centers, maintenance facilities, and remote locations.
• Designs, implements, and supports wireless cellular technologies including LTE, 5G, DAS, wireless WAN (WWAN), and mobile network solutions.
• Supports highly available network/wireless infrastructure for 24x7 transportation operations with focus on resiliency, redundancy, and operational continuity. Performs cellular/wireless signal analysis, coverage validation, interference troubleshooting, and cellular performance optimization.
• Supports out-of-band (OOB) connectivity solutions utilizing cellular technologies for remote infrastructure management and resiliency.
• Determines and analyzes user requirements for voice and data services/equipment. Participates in vulnerability remediation, security audits, incident response, and infrastructure hardening initiatives.
• Evaluates technical and cost proposals for telecommunications equipment, systems and services and prepares recommendations to immediate supervisor.
• Performs voice and data traffic engineering analysis to assure that telecommunications services are optimized and satisfactory level of service is maintained/improved.
• Participates in vulnerability remediation, security audits, incident response, and infrastructure hardening initiatives.

Education, Experience & Qualifications

• Bachelor’s Degree in Computer Science or related major or equivalent.
• Four (4) or more years of applied experience in the telecommunications field, including voice and data.
• Experience includes working in a major PBX and/or network environment with extensive client interaction in the implementation/support of data and voice networks.
• Experience with wireless cellular technologies including LTE, 5G, DAS, cellular gateways/modems, and carrier network services preferred.
• Knowledge of wireless network architecture, RF fundamentals, carrier connectivity, and mobile communications infrastructure preferred.
• Experience supporting mission‑critical wireless infrastructure and transportation communications systems preferred.

Knowledge & Skills

• CradlePoint Modem Device Configuration skills and Operational Support.
• Experience with wireless cellular technologies including LTE, 5G, DAS, cellular gateways/modems, and carrier network services.
• Knowledge of wireless network architecture, RF fundamentals, carrier connectivity, and mobile communications infrastructure.
• Experience supporting mission‑critical wireless infrastructure and transportation communications systems.
• Experience with Cisco, Cradlepoint, Sierra Wireless, Digi, Aruba or similar wireless networking platforms.
• Industry certifications such as CCNP, CWNA, CWNP, Cisco Wireless or equivalent.
• Requires fieldwork at transportation facilities, remote sites, data centers, rail stations, bus garages, and outdoor locations.
• Locations to be provided as it will be dependent upon where the work is needed.
• Candidate can expect 1-2 days per week in office at 2 Gateway, Newark NJ and remainder of days per week at one of the sites. Candidate will not work from home.
• May require after-hours support for emergency wireless/cellular outages and maintenance activities.

Certificates, Licenses, Registrations

• Industry certifications such as CCNP, CWNA, CWNP, Cisco Wireless or equivalent preferred.