Wireless Systems Engineer

Fresh Consulting•Sunnyvale, CA

1d•Onsite

About The Position

Fresh Consulting is a design-led, software development and hardware engineering company, offering end-to-end digital services to help companies innovate. We bring together amazing UX designers, sophisticated developers, digital strategists, and top-notch engineers to help companies create fresh experiences that connect humans, systems, and machines. We’ve been growing fast and need someone to help us continue to manage the delivery of high-quality work in a fast-paced environment.

Requirements

System Validation Engineer with min 5 years of experience
Deep understanding of 5G NR (Standalone and Non-Standalone) and LTE-A features like Carrier Aggregation (CA), MIMO, Beamforming, and VoLTE/VoWiFi.
In-depth familiarity with 3GPP protocols and the mobile device-to-network registration and call-flow processes.
Proficiency with RF lab equipment, including Spectrum Analyzers, Signal Generators, Power Meters, and Vector Network Analyzers (VNA).
Strong proficiency in Python for test script development and data analysis.
Experience using diagnostic tools such as QXDM, QCAT, Wireshark, or similar modem logging software.

Responsibilities

Define, develop, and execute comprehensive test plans for cellular modem validation across various radio access technologies (5G NR FR1/FR2, LTE-A, UMTS).
Perform deep-dive log analysis of the cellular protocol stack (L1, MAC, RLC, RRC, and NAS layers) to identify and root-cause signaling failures, handovers, and throughput drops.
Characterize key performance indicators (KPIs) such as RSRP, SINR, BLER, and Peak Throughput under varying network conditions (fading, interference, and mobility).
Design and maintain scalable automation frameworks using Python to increase test coverage and efficiency in lab and regression environments.
Collaborate with Firmware, Hardware, and System teams to debug complex system-level issues.
Operate and configure high-end cellular network emulators and RF test equipment for both signaling and non-signaling test modes.