The Senior Wireless Test Engineer – Cellular Systems at the GM Global Technical Center in Warren, MI will lead lab and field validation of 4G and 5G cellular connectivity for connected vehicles. This hands-on technical leader will translate detailed requirements into comprehensive test strategies, cases, and scripts to validate end-to-end system performance across various networks and operators. Responsibilities include defining test methodologies, selecting tools and equipment, executing complex test campaigns, and driving issue resolution with internal teams and external partners. The role requires expertise in RF performance testing, cellular protocol validation, service feature validation, automation tooling, and cross-functional collaboration. Key skills include knowledge of 4G/5G protocols, mobility management, and emergency services, as well as hands-on experience with test equipment like call boxes, spectrum analyzers, and protocol analyzers. The ideal candidate has a background in automotive connectivity or telematics control units and familiarity with regulatory compliance processes.
Skills
Python
Keysight
Spirent
R&S
Anritsu
QXDM
QCAT
Wireshark
PTCRB
GCF
RF performance testing
Protocol stack behavior testing
Mobility and roaming testing
Voice services testing
Data services testing
SMS testing
Emergency call testing
Automated test scripts
Test automation frameworks
RF test equipment
Cellular network simulators
What you'll do
Develop and execute comprehensive test strategies for 4G and 5G cellular connectivity.
Define and maintain automated test scripts and parsers for cellular validation.
Validate RF performance and parametric tests using specialized equipment.
Design and execute complex mobility and roaming scenarios across networks.
Ensure end-to-end system behavior for voice, data, SMS, and emergency services.
Collaborate with hardware and software teams to resolve technical issues.
What we're looking for
5+ years of hands-on experience in cellular wireless testing or validation (4G LTE and/or 5G NR).
Strong understanding of cellular RF fundamentals, 4G/5G protocol stack, and mobility concepts.
Experience developing comprehensive test plans, cases, and scripts for various scenarios.
Hands-on expertise with cellular test equipment such as call boxes, spectrum analyzers, and channel emulators.
Proven ability to translate requirements into testable criteria and define necessary tools and configurations.
Strong data analysis skills and the capability to interpret complex RF and protocol logs.
Market check
Salary context
This
$106,600–$165,700
range sits above
25%
of similar postings on FindRole.
Peer median band
$117,000–$199,400
Median floor and ceiling across peers.
Typical midpoint (25–75%)
$135,702–$177,250
Middle half of comparable postings.
Based on 240 comparable postings.*
* 240 is the maximum number of comparable postings sampled.
Employer
About General Motors (GM)
General Motors (GM) is a leading American multinational automotive corporation founded in 1908 and headquartered in Detroit, Michigan.
General Motors (GM) currently has
96 open roles
on FindRole.
Listed pay typically runs
$159,400–$250,600
across 58 roles with salary data.
Python
LabVIEW
TestStand
RF test equipment
Vector network analyzers
Spectrum analyzers
Statistical process control
Yield analysis
Automated RF test systems
Production calibration
SPC
VNA
Signal generators
Power meters
Mechanical layout debugging
Grounding and shielding troubleshooting
MATLAB
RF propagation
Channel modeling
Digital communication systems
RF subsystems
MIMO
OFDM
Signal processing algorithms
Fixed point modeling
FPGA design
Technical writing
C
C++
Python
MATLAB
Linux
Windows
PyTorch
TensorFlow
Keras
Hugging Face
3GPP
IEEE
LTE
NR
WLAN
Modem algorithms design
Interference and mobility management
Neural network model design and training
Data-driven design
Perception technologies
Deep learning theory
Linear algebra
Statistics
Signal processing
Information theory
Optimization
Wireless communications