Job Description
Job Overview
General Motors is transforming into a software‑defined, technology‑driven automotive company, with a growing emphasis on in‑house hardware and RF system design to enable faster innovation, deeper system integration, and improved product quality.
We are seeking a highly skilled Senior RF Coexistence Engineer to support multi‑radio performance execution across GM’s next‑generation product platforms. In this role, you will focus on coexistence behavior, throughput, latency, and system‑level performance across cellular, Wi‑Fi, Bluetooth, GNSS, UWB, and emerging wireless technologies.
This is a senior individual contributor role that plays a critical part in GM’s in‑house design (IHD) strategy, embedding coexistence expertise early in design, validation, and integration cycles while working within agile, cross‑functional development teams.
Key Responsibilities
Coexistence Execution & Ownership
Own coexistence performance execution for assigned systems, features, and vehicle programs
Develop and implement multi‑radio coexistence solutions within defined vehicle and system architectures
Support early design phases by identifying coexistence risks and opportunities aligned with GM’s in‑house development roadmap
Partner with internal design teams to reduce dependency on late‑stage supplier fixes
Analyze and improve:
Throughput degradation
Latency, packet loss, and jitter
Radio contention and scheduling inefficiencies
Evaluate coexistence behavior in real‑world, in‑vehicle scenarios:
Support system trade‑offs balancing performance, power, cost, and use
Collaborate closely with internal:
RF, antenna, PCB, SoC, and firmware teams
Enable faster iteration cycles by connecting:
Early simulation
Bench and lab validation
Vehicle‑level testing
Support agile development models through incremental learning, fast debug, and early risk retirement
Cross‑Functional Technical Integration
Influence system design decisions to improve coexistence performance, including:
Antenna placement and isolation
RF front‑end architecture
Clocking and aggressor management
Collaborate with firmware and software teams on:
Act as a technical bridge between hardware realities and protocol‑level behavior
Coexistence Testing & Validation
Develop and execute coexistence validation plans, including:
Define and run coexistence test matrices and stress scenarios aligned with vehicle use cases
Utilize tools such as:
Wireless test systems (UXM, CMX, MT8000A, CMW500)
OTA chambers, spectrum/network analyzers, protocol analyzers, and sniffers
Debug & Root‑Cause Analysis
Lead root‑cause investigation of coexistence‑related performance issues by:
Identifying aggressor / victim interactions
Analyzing conducted, radiated, and baseband coupling paths
Debug across multiple layers:
RF front‑end and antenna systems
Baseband and firmware behavior
System scheduling and software interactions
Capture learnings to support reuse and continuous improvement within GM’s in‑house design ecosystem
Design for Coexistence (DfC)
Apply GM‑defined design‑for‑coexistence frameworks, including:
PCB layout (grounding, isolation, return paths)
Antenna placement and coupling minimization
Shielding, filtering, and noise mitigation
System‑level timing and resource management strategies
Support early‑stage coexistence modeling and simulation in collaboration with system architects
Technical Leadership
Serve as a go‑to coexistence subject‑matter expert for assigned programs
Mentor junior engineers on coexistence fundamentals, testing, and debug techniques
Contribute to in‑house guidelines, documentation, and repeatable technical practices
Provide technical input into architecture reviews, design decisions
Be comfortable is dealing with ambiguity, self starter setting objectives aligned with phase of the product development cycle
Required Qualifications
M.S. in Electrical Engineering or related field (PhD preferred)
6–10 years of RF/wireless engineering experience with strong emphasis on coexistence (Coex)
Strong understanding of:
Multi‑radio interference mechanisms
Wireless protocols (Wi‑Fi, Bluetooth, LTE/5G) and their interactions
Hands‑on experience with:
Wireless test equipment (UXM, CMX, MT8000A, CMW500)
OTA testing and coexistence validation setups
RF simulation tools (CST, HFSS, FEKO)
Proven system‑level debugging and data‑driven analysis skills
Preferred Experience
Automotive wireless systems (infotainment, telematics, connected vehicle platforms)
Consumer electronics (smartphones, wearables, AR/VR)
Experience supporting in‑house hardware or platform development teams
Familiarity with firmware‑driven coexistence algorithms and protocol analyzers
Compensation: The compensation information is a good faith estimate only. It is based on what a successful applicant might be paid in accordance with applicable state laws. The actual base salary a successful candidate will be offered within this range will vary based on factors relevant to the position, as well as geography of the selected candidate.
• The salary range for this role is 134,700 - 207,600
. The actual base salary a successful candidate will be offered within this range will vary based on factors relevant to the position.
• Bonus Potential: An incentive pay program offers payouts based on company performance, job level, and individual performance.
Benefits:
• Benefits: GM offers a variety of health and wellbeing benefit programs. Benefit options include medical, dental, vision, Health Savings Account, Flexible Spending Accounts, retirement savings plan, sickness and accident benefits, life insurance, paid vacation & holidays, tuition assistance programs, employee assistance program, GM vehicle discounts and more.
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This role is categorized as hybrid. This means the selected candidate is expected to report to a specific location at least 3 times a week {or other frequency dictated by their manager}.
The selected candidate will be required to travel <25% for this role.
