5G/4G Protocol & RAN Test Engineer

Company Description

Accuver, a core subsidiary of LIG Accuver Inc., is a global provider of wireless network testing and optimization solutions for mobile operators and device manufacturers. With more than 20 years of innovation, the company bridges commercial 5G connectivity with mission-critical defense and private network communications. Accuver’s solutions are used by over 220 customers in 50+ countries, ensuring reliability and low-cost maintenance. LIG Accuver is actively shaping next-generation technologies including 6G, satellite and Non-Terrestrial Networks (NTN), AI-powered analytics, and advanced mobility testing for V2X and autonomous driving. Its solutions, including XCAT-SPACE, XCAP-Cloud, XCAL 6.0, and Q-5G Express, support cutting-edge validation, root cause analysis, and tactical private 5G deployments worldwide.

http://www.accuver.com

Role Description

We are looking for a motivated individual for the position of 5G/4G RAN Test Engineer to join our wireless engineering team and support the validation, integration, and troubleshooting of LTE (4G) and 5G NR Radio Access Network (RAN) solutions. This is a contract role in the Greater Toronto Area, Canada.

The ideal candidate will have strong hands-on experience in RAN testing, cellular protocols, test execution, log analysis, and troubleshooting across LTE and 5G networks. You will work closely with R&D, system engineering, integration, and customer teams to identify issues, reproduce failures, and drive problems to resolution.

Key Responsibilities

• Perform end-to-end testing of RAN features across UE, gNB/eNB, Core Network, and transport/network components to validate new software and hardware.
• Interface with both internal and external customers to provide technical support for RAN hardware/software.
• Troubleshoot and assist in root cause analysis of software- and hardware-related issues
• Support lab/FOA testing and validation of new hardware and software.
• Assist with customer problem investigation and support all facets of resolution on-site / customer lab.
• Accept tasks and problems/situations that differ, requiring creativity to search for optimal solutions, when only broad and general guidelines exist for solving problems.
• Proven ability to interact at multiple levels within internal & customer organizations.
• Ability to achieve results within established time frames and requirements.

Qualifications

• A firm/expert working knowledge of 5G(SA/NSA), LTE and VONR/VoLTE, IMS SIP, EPC/NGC.
• Bachelor's or Master's degree in Electrical Engineering, Computer Engineering, Telecommunications, Wireless Communications, or a related field.
• Strong understanding of 3GPP LTE and 5G NR architecture and protocols.
• Good knowledge of RRC, NAS, PDCP, RLC, MAC, and PHY protocols.
• Hands-on experience with 5G NR SA and/or NSA testing, log analysis and E2E network understanding.
• Experience with RF testing, RF KPIs, and basic wireless performance analysis.
• Experience with LTE/5G mobility, handover, carrier aggregation, dual connectivity, and basic RAN performance testing.
• Have experience/knowledge of lab/field testing and T&M tools like XCAL, and XCAP.
• Deep understanding of LTE, VoLTE, 5G-NSA & SA call flows with the ability to understand and analyze traces (PCAP, eNB/gNB traces), UE, and Core networks.
• Experience with Linux, TCP/IP, UDP, IPv4/IPv6, VLAN, routing, and basic IP networking.
• Programming/scripting knowledge in Python, Shell, or similar languages is a plus.
• Self-motivated individual to get things done and report the daily testing status to the reporting manager/team.
• Ability to work effectively with cross-functional engineering teams in different time zones.
• Should be familiar with bug reporting tools like JIRA, etc.
• Strong analytical and problem-solving capabilities.
• Excellent written and verbal communication skills.
• Ability to work independently and in a team environment.

Work Authorization:

• Candidate must have valid work authorization to work in Canada (Permanent resident or Canadian Citizen).
• No work visa sponsorship is provided for this role.