Technical Architect

Role Summary

Perform 5G IODT (Inter-operability device testing) integrating Mavenir's 5G ORAN and core network with various UEs like Qualcomm MTPs, Samsung, Apple, MediaTek Chipsets in an end-to-end environment for the customers. Troubleshoot lab and field IODT issues (at customer cell sites) and work with cross- functional teams like System Engineering, Development and System Testing to fix them. Perform 5G ORAN product validation, feature validation, systems and performance analysis focusing on Air interface, end-to-end performance, and Call Processing. Prepare test strategies and write test cases by reading feature reference documents and 3GPP standard specifications and perform the required testing to make sure peak data throughputs are achieved in ideal lab conditions. Collect all required logs and create trouble tickets using Jira Tools. Install, upgrade and maintain upkeep of 5G ORAN labs in cloud native platform. Maintain the test-line sanity, troubleshoot and recovery of test networks in the lab. Prepare Lab / Data Schema for test lines depending on Radio / UE type / Standalone / Non-Standalone 5G architectures. Prepare Method of Procedure (MOP) and troubleshooting guides for Integration testing of all new ORAN features.

Key Responsibilities

Perform 5G IODT (Inter-operability device testing) integrating Mavenir's 5G ORAN and core network with various UEs like Qualcomm MTPs, Samsung, Apple, MediaTek Chipsets in an end-to-end environment for the customers. Troubleshoot lab and field IODT issues (at customer cell sites) and work with cross- functional teams like System Engineering, Development and System Testing to fix them. Perform 5G ORAN product validation, feature validation, systems and performance analysis focusing on Air interface, end-to-end performance, and Call Processing. Prepare test strategies and write test cases by reading feature reference documents and 3GPP standard specifications and perform the required testing to make sure peak data throughputs are achieved in ideal lab conditions. Collect all required logs and create trouble tickets using Jira Tools. Install, upgrade and maintain upkeep of 5G ORAN labs in cloud native platform. Maintain the test-line sanity, troubleshoot and recovery of test networks in the lab. Prepare Lab / Data Schema for test lines depending on Radio / UE type / Standalone / Non-Standalone 5G architectures. Prepare Method of Procedure (MOP) and troubleshooting guides for Integration testing of all new ORAN features.

Job Requirements

Requires a Bachelor’s degree (or foreign equivalent) in Electronics Engineering or a directly related field plus five (5) years of experience in telecommunications engineering. Experience must include :

Two (2) years of experience in each of the following (experience may be gained concurrently) :

• Air-interface Protocols - RRC, RLC, MAC, PDCP, SDAP; Cellular network end-end call flows including Voice over NR (VoNR), Video over NR (ViNR), UDP or TCP Data calls, Intra-Frequency, Inter-Frequency Handovers, Network slicing, Carrier Aggregation, and MIMO.
• ETSI, 3GPP, or ORAN specification-based experience with 5G ORAN network Architectures, specifically focused on Radio Access Networks.
• End-to-end integration experience of 4G or 5G ORAN CU, DU, RU along with 4G or 5G core networks
• Experience with entity or system testing activities, including feature validation, test description documentation, parameter optimization, performance analysis, test strategy creation and problem troubleshooting on 5G RAN.
• Experience with Python and Shell scripting language to design and support the Call Flow Testing and debugging.
• Experience with test tools including protocol analyzers, XCAL / QXDM, Wireshark, Channel Emulator, Spectrum Analyzers and Signal Generators.

One (1) year of experience in each of the following (experience may be gained concurrently) :

40 hours / week, 9 : 00am-5 : 00pm.

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