Cellular Systems Engineer

Delart•Foster City, CA

About The Position

Delart is home to a team of world-class engineers and project leaders dedicated to developing the next generation of advanced networking technologies, consumer devices, and innovative technology solutions. Trusted by some of the world’s leading technology companies, we deliver highly scalable, mission-critical solutions that power both consumer and business applications globally. Since our founding in 2017, we have been at the forefront of designing cutting-edge networking, telecommunications, and consumer products, while driving end-to-end project execution and creating transformative technology applications. Overview Join an innovative cellular connectivity team working at the intersection of artificial intelligence, robotics, and design to advance cellular connectivity solutions for autonomous use cases. As a Cellular Systems Engineer, you'll propel the next generation of mobility-as-a-service, revolutionizing robotics ecosystems. You'll leverage your expertise to ensure system reliability and performance, enhancing the end-to-end quality-of-service for autonomous applications.

Requirements

B.Eng/M.S. in Electrical Engineering, Telecommunications, or a related field.
Expert-level knowledge of 4G-LTE and 5G-NR air interfaces, focusing on L1-L3 layers.
Familiarity with IEEE 802 protocols and TCP/IP networking.
Extensive experience with modem-level chipset tools like Qualcomm QXDM/QCAT and Samsung ShannonDM.
Proven ability to troubleshoot complex live network issues, including mobility management and interference analysis.
Strong proficiency in Python for automation tool development and log analysis.
Familiarity with RAN and Core Network architectures and their impact on system performance.
3–5+ years of experience in the cellular protocol domain.

Nice To Haves

Advanced programming skills in additional scripting languages.
Experience with cutting-edge wireless technologies and forthcoming protocols, enhancing connectivity for dynamic mobile networks.

Responsibilities

Collaborate with connectivity system, firmware, and software teams to identify, process, and interpret critical device and service performance attributes.
Lead as the technical expert in analyzing modem-level field logs using chipset tools such as Qualcomm QXDM and Samsung Shannon, developing programmatic tools for diagnosing throughput drops, handover failures, and connectivity issues.
Develop and deploy end-to-end automation tools to scale the identification and processing of performance attributes.
Interpret KPIs and recommend architectural changes or reconfigurations to improve end-to-end quality-of-service and system performance.
Work with system architecture and engineering teams to design and prototype connectivity solutions across 4G-LTE, 5G NR, and WiFi/GPS, meeting the needs of autonomous driving use cases.
Collaborate and participate in cellular connectivity field measurements and data collection and analysis of field data for improvements