Full-Time
5G Core Network Engineer
Posted on 12/3/2025
MetTel
501-1,000 employees
Designs and deploys global connectivity networks
Compensation Overview
$120k - $135k/yr
Holmdel, NJ, USA
In Person
 DevOps & Infrastructure (2) |
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- Have a minimum of 5 years of experience in cellular network core architecture and design.
- In-depth knowledge of 3GPP standards and protocols for 5G core (e.g., NG-RAN, AMF, SMF, UPF) and 4G core (e.g., MME, SGW, PGW).
- Proven experience in designing, deploying, and managing 5G core network infrastructure.
- Experience with IPX integration and roaming protocols (S6a, S5, S8, GTP).
- Familiarity with network automation tools and scripting languages is a plus.
- Experience with GSMA documents (IR.21) and tools (RAEX) required.
- Excellent analytical and problem-solving skills.
- Strong communication, collaboration, and interpersonal skills.
- Ability to work independently and as part of a team.
- Lead the design, architecture, and implementation of our 5G core network, leveraging your expertise in 3GPP standards and protocols.
- Ensure smooth integration of the core functions (5G SA / NSA, 4G) with existing MetTel infrastructure, enabling a seamless user experience.
- Configure and manage core network element Containerized Network Functions (MME, SGW, HSS, PCRF, PGW), 5G (SA, NSA).
- Implement and manage IPX (IP Exchange) solutions for efficient data exchange between network operators and MetTel Enterprise subscribers.
- Configure and manage roaming protocols (S6a, S5, S8, GTP) to enable seamless connectivity for MetTel Enterprise roaming subscribers.
- Partner with network engineering teams to integrate the core network with radio access network (RAN), SD-WAN and other network components.
- Perform regular capacity planning and optimization to ensure the network meets performance and scalability requirements.
- Monitor network performance, identify and troubleshoot core network issues, and implement corrective actions.
- Stay up-to-date on the latest advancements in 5G core technology, including network slicing, edge computing, and network function virtualization (NFV).
- Document network architecture, configurations, and procedures for future reference and knowledge sharing.
- Have a minimum 5 years of experience in cellular network core architecture and design.
- In-depth knowledge of 3GPP standards and protocols for 5G core (e.g., NG-RAN, AMF, SMF, UPF) and 4G core (e.g., MME, SGW, PGW).
- Proven experience in designing, deploying, and managing 5G core network infrastructure.
- Experience with IPX integration and roaming protocols (S6a, S5, S8, GTP).
- Familiarity with network automation tools and scripting languages is a plus.
- Experience with GSMA documents (IR.21) and tools (RAEX) required.
- Excellent analytical and problem-solving skills.
- Strong communication, collaboration, and interpersonal skills.
- Ability to work independently and as part of a team.
- Experience with cloud-native network architectures and containerization technologies (Docker, Kubernetes, GitOps).
- Experience with network performance monitoring and optimization tools.
- Experience with network security principles and best practices.
MetTel provides global connectivity and networking solutions for businesses and government agencies. It designs and deploys tailored voice, data, mobility, and IoT networks using its own private global network and a broad suite of technology. The company also manages and secures these networks, offering ongoing support and insights to optimize performance. MetTel differentiates itself by combining end-to-end solution design, deployment, and proactive management with emphasis on intelligence, security, and a strong customer experience, backed by recognition as a Gartner Leader in Managed Network Services for multiple years. Its goal is to help organizations improve productivity and reduce costs by enabling reliable, secure, and well-managed connectivity so they can focus on their core operations.
Company Size
501-1,000
Company Stage
N/A
Total Funding
N/A
Headquarters
New York City, New York
Founded
1996
Simplify's Take
What believers are saying
- Secured $54M VA award after year-long protest battle.
- Won 2026 Product of the Year for POTS Transformation on April 8.
- Launched UEM solution January 13, 2026, saving GSA millions.
What critics are saying
- Verizon bundles services cheaper, eroding MetTel's market share in 12-24 months.
- AT&T's 5G POTS emulator displaces MetTel's solution in 9-15 months.
- Global chip shortages delay CLaaS deployments 60+ days in 3-6 months.
What makes MetTel unique
- MetTel's SingleSIM enables multi-carrier connectivity in Connected Laptop as a Service.
- POTS Transformation integrates DataRemote's 5G POTS IN A BOX for UL-864 compliance.
- Leader in Gartner's Magic Quadrant for Managed Network Services five years running.
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Benefits
Flexible Work Hours
Remote Work Options
Company News
MetTel has launched Connected Laptop as a Service, offering enterprise-grade laptop management with multi-carrier connectivity via its SingleSIM technology. The service provides uninterrupted connectivity across any carrier, device or location globally from initial deployment. The offering addresses IT resource constraints, as administrators reportedly spend nearly 100 business days managing every 1,000 devices. MetTel handles the entire lifecycle from device ordering through its customer portal to direct shipment to end users, including MDM provisioning and security configurations. SingleSIM provides always-on secure connectivity, eliminating reliance on unsecured public WiFi networks. MetTel distributes devices from its warehouses, where they are staged and configured to enterprise specifications before deployment. MetTel has been recognised as a Leader in Gartner's Magic Quadrant for Managed Network Services for five consecutive years.
MetTel, a digital transformation and communications leader, has announced a new POTS Transformation solution integrating DataRemote's 90X1 POTS IN A BOX technology with its managed network services. The solution provides businesses with a certified alternative to legacy copper lines for critical voice and data services. Key features include UL-864 compliance for alarm equipment, 5G connectivity with 4G fallback on multicarrier cellular radio, and patented power output maintaining third-party devices during power loss. The system offers up to 48 hours of battery backup and nationwide coverage with multicarrier certification and Starlink compatibility. With an estimated 14 to 30 million copper lines remaining in the US, the solution addresses escalating costs and declining service quality as traditional copper networks reach end-of-life. MetTel also offers a lower-cost 4G-only variant for POTS replacement.
MetTel earns global innovation Awards for CX, Operational Excellence with POTS Transformation. NEW YORK, Dec. 9, 2025 /PRNewswire/ - MetTel, a digital transformation and communications leader, is pleased to announce it received two global 2025 Fast Mode Awards for innovation: Operational Excellence Leader for its managed POTS Transformation solution and CX Champion for its customer experience initiatives. In the Telco (Global/Wholesale) category, MetTel was recognized as an Operational Excellence Leader for rapid, large-scale modernization of the United States Postal Service network, precision execution enabled through its managed POTS Transformation solution based on DataRemote's POTS in a Box transceiver, and automation and proactive monitoring via the MetTel Portal with multi-path failover. POTS Transformation addresses an urgent need: the digital transformation of discontinued copper landlines that risk business disruption, alarm and elevator safety and compliance as well as spiraling costs. Also in the Telco (Global/Wholesale) category, MetTel was named a CX Champion for a predictive, relationship-driven customer experience model; nationwide US Postal Service, General Service Administration and Veterans Administration modernizations with no service disruption; support from the MetTel Portal; and SD-WAN over Starlink to extend reliable connectivity everywhere. "Receiving recognition as both CX Champion and Operational Excellence Leader is a tremendous honor and a powerful validation of everything we stand for," said Marshall Aronow, CEO of MetTel. "These awards underscore our customer-first approach and proven mastery in orchestrating large-scale, intricate modernizations. Whether seamlessly digitizing thousands of legacy landlines or extending resilient connectivity to new frontiers with SD-WAN over Starlink? all without a hitch? we deliver for the US Postal Service, VA, GSA and major commercial enterprises." The 2025 Fast Mode Awards recognize outstanding achievements across the telecom industry, highlighting transformative efforts that drive connectivity, operational efficiency, and digital innovation. About MetTel A leading provider of digital transformation and communications solutions for enterprise and government clients, MetTel is recognized as a Leader in the Gartner Magic Quadrant for Managed Network Services for the last five consecutive years. With award-winning solutions, a global footprint, and deep expertise in network modernization, MetTel enables organizations to connect, grow, and thrive in an increasingly digital world. For more information visit mettel.net, follow us on X (@OneMetTel) and LinkedIn, or call us directly at (877) 963-8663. MetTel. Connect Smartertm. SOURCE MetTel | These press releases may also interest you | at 16:55 | bad weather forecasts are costing aus solar $100m+ per year, finds solstice AI report | | / | dr. 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MetTel's Lori Thomas wins two 2025 Stevie(R) Awards for Women in Business.
MetTel secures $54M VA award after year-long protest battle.