Jobs in the United States

25+ jobs

Added 13 mins ago
Lead NASCAR Aerodynamics Engineer
Oshkosh Corporation
Huntersville, NC
Pratt Miller is a product development company in motorsports, defense, and mobility industries providing clients with product engineering and low-volume production solutions. Our range of…
Added 14 mins ago
T
Zero Trust Implementation Lead
TEKsystems
Greensboro, NC
- $66.67 to $83.33 USD / hour
We are seeking an experienced Security Engineer to accelerate execution of an enterprise Zero Trust program across a global retail, corporate office, distribution center, and data center…
Added 14 mins ago
EC
Software Engineer
Eaton Corporation
Raleigh, NC
- $80,000 to $118,000 USD / year
We are seeking an Embedded Software Engineer to support the integration, configuration, and validation of power monitoring and metering solutions for Remote Power Panels (RPPs) and related…
Added 14 mins ago
Senior Embedded Systems Verification Engineer
Eaton Corporation
Raleigh, NC
This role is responsible for supporting design testing, lab setup, and design verification and validation (V&V) of embedded and application software for Critical Power Solutions technology…
Added 14 mins ago
T
Information Security Engineer
TTEC
Raleigh, NC
- $65,000 to $70,000 USD / year
Be the spark that brightens days and ignite your career with TTEC’s award-winning employment experience. As a Information Security Engineer working remote in US, you’ll be a part of…
Added 14 mins ago
Lead AI and Data Science Engineer II- Marketing Measurement
Deloitte
Charlotte, NC · Raleigh, NC
Are you an experienced, passionate pioneer in data and technology who wants to work in a collaborative environment? As an experienced Lead AI and Data Science Engineer II - Marketing…
Added 14 mins ago
EG
QA Automation Engineer
Eliassen Group
Raleigh, NC
- $75 to $82 USD / hour
Develop, document, and maintain functional test cases and test artifacts such as test data, data validation, and automated scripts.
Added 45 mins ago
EG
QA Automation Engineer
Eliassen Group
Montpelier, VT
- $75 to $82 USD / hour
Develop, document, and maintain functional test cases and test artifacts such as test data, data validation, and automated scripts.
Added 1 hour ago
Electrical Engineer I Neuromodulation
Abbott
Plano, TX
Assist in the development of verification and validation test protocols and reports.
Added 1 hour ago
Lead AI and Data Science Engineer II- Marketing Measurement
Deloitte
Fort Worth, TX · Houston, TX · Austin, TX · Dallas, TX · San Antonio, TX · Westlake, TX
Are you an experienced, passionate pioneer in data and technology who wants to work in a collaborative environment? As an experienced Lead AI and Data Science Engineer II - Marketing…
Added 1 hour ago
RI
Staff Nuclear Engineer
Radiant Industries
El Segundo, CA
- $195,713 to $262,500 USD / year
Radiant is seeking a Staff Nuclear Engineer to provide technical expertise across the nuclear design and analysis of Kaleidos. You will work across core physics, neutron and radiation…
Added 1 hour ago
Guidance and Control Engineer II - TS/SCI
JPL/NASA
Pasadena, CA
This unique opportunity is part of the Mechanical and Control Systems Division, which is responsible for technology development, advanced concepts, design, development, delivery,…
Added 1 hour ago
VI
Staff Embedded Software Engineer - 5G Devices & NTN Connectivity
Viasat, Inc.
Carlsbad, CA · Germantown, MD
- $205,000 to $307,000 USD / year
Develop automated test frameworks and validation solutions for software platform verification.
Added 2 hours ago
Lab Quality Engineer (Atlanta, GA, or other unanticipated locations throughout U.S.)
Insight Global
Atlanta, GA
Responsibilities include: Ensuring the quality and compliance of our laboratory processes and deliverables. Supporting the design qualification and validation of laboratory equipment and…
Added 2 hours ago
PN
Building Systems Research Engineer
Pacific Northwest National Laboratory
UNAVAILABLE
- $89,300 USD / year
The Energy and Environment Directorate delivers science and technology solutions for the nation’s biggest energy and environmental challenges. Our more than 1,700 staff support the…
Added 2 hours ago
IT Security Engineer
CoolSys
UNAVAILABLE
The Security Engineer implements, operates, and improves security controls across enterprise identity, cloud, network, endpoint, server, and application environments. This mid-level…
Added 2 hours ago
Senior GNC Engineer
Kastel Staffing
Moorpark, CA
We are seeking a Senior GNC Engineer IV with extensive experience in drone flight dynamics, control theory, state estimation, and autonomous flight systems. In this role, you will lead the…
Added 2 hours ago
Senior GNC Engineer
Kastel Staffing
Huntsville, AL
We are seeking a Senior GNC Engineer IV with extensive experience in drone flight dynamics, control theory, state estimation, and autonomous flight systems. In this role, you will lead the…
Added 2 hours ago
Manufacturing Engineer II/III (Multiple Shifts) - Operations
Blue Origin Personnel, LLC
Space Coast, FL
This role is part of Blue Origin Operations, which is comprised of Integrated Supply Chain, Test Operations, Safety, Quality, and Mission Assurance. This includes Manufacturing and Supply…
Added 2 hours ago
Software System Engineer
The Exploration Company
Houston, TX
We are seeking a highly motivated and experienced Senior Software System Engineer to support the certification activities of the flight software for the Nyx program. You will work in a…
Added 2 hours ago
K
Sr. Al Solution Engineer
Kentro
UNAVAILABLE
- $101,000 to $140,000 USD / year
Kentro is hiring for a Sr. AI Solution Engineer to support secure cloud data and applied AI initiatives for government customers. You will build governed data pipelines, automate cloud and…
Added 3 hours ago
Software Integration Engineer, Autonomy
42dot
San Francisco
- Build and maintain the model deployment pipeline, including conversion, validation, and rollout
Added 3 hours ago
Sr. Software Integration Engineer, Autonomy
42dot
San Francisco
- Build and maintain the model deployment pipeline, including conversion, validation, and rollout
Added 3 hours ago
RH
Sr. Software Engineer
Robert Half
Peoria, AZ
- $150,000 to $155,000 USD / year
Create and execute hardware-focused validation strategies, including simulated test environments and physical fixture-based testing.
Added 3 hours ago
O
Principal Core Infrastructure Engineer
Oracle
Austin, TX
- $114,600 to $234,600 USD / year
Oracle Cloud Infrastructure (OCI) is hiring a Principal Core Infrastructure Engineer to join the Next Gen Network Observability team. Help build cloud-scale intelligence systems that enable…

Modem System Test Engineer - Wireless Technologies and Ecosystems |

CA, United States

The base pay range for this role is between $150,400 and $277,600, and your base pay will depend on your skills, qualifications, experience, and location.

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Job details

Pay: The base pay range for this role is between $150,400 and $277,600, and your base pay will depend on your skills, qualifications, experience, and location.
Posting language: English
Posted: Nov 6, 2026

Original job description

Summary Join the Wireless Technologies and Eco-Systems (WTE) team and drive wireless innovations that impact millions of users worldwide! We design, validate, and integrate cutting-edge wireless technologies that enrich everyday experiences across our entire product ecosystem.

We are seeking a passionate, detail-oriented Modem Systems Test Engineer with a focus on Wireless Coexistence (COEX). In this role, you will be at the forefront of validating multi-radio platforms ensuring seamless concurrent operation between cellular technologies (LTE, 5G NR FR1/FR2) and adjacent radios such as Wi-Fi, Bluetooth, Ultra-Wideband (UWB), and GNSS. If you thrive in a fast-paced environment solving complex cross-radio interference, desense, and protocol arbitration challenges, we would love to hear from you.

Description In this role, you will be responsible for end-to-end system testing, performance characterization, and failure triage of advanced cellular baseband and multi-radio coexistence features. You will bridge baseband protocol software, RF hardware, and connectivity systems to guarantee robust real-world performance under hostile interference conditions.

You will rely on deep trace analysis, lab simulation, RF instrumentation, and automation to uncover edge-case performance degradation, desense mechanisms, and protocol timing collisions. Working cross-functionally with system architecture, firmware, protocol development, RF design, and carrier engineering, you will drive test coverage, root-cause complex issues, and influence system-level mitigation designs.

Responsibilities

Coexistence Test Design & Execution: Define, develop, and execute comprehensive test plans targeting in-device coexistence (IDC), inter-radio arbitration, multi-SIM / multi-active scenarios, and concurrent multi-band operation (LTE/5G NR with Wi-Fi, Bluetooth, UWB, and GNSS).

RF & Protocol Root-Cause Analysis: Analyze baseband protocol traces (PHY, MAC, RLC, PDCP, RRC), air-interface captures, and RF measurements to root-cause desense, throughput degradation, scheduling conflicts, dropped calls, and handover anomalies.

Mitigation & Feature Validation: Evaluate and validate dynamic coexistence mechanisms, including power back-off, time-division multiplexing (TDM) / frequency-division multiplexing (FDM) filtering, antenna switching/sharing, and adaptive link management.

Intelligent Test Automation: Develop robust, scalable test automation scripts and post-processing analytics pipelines in Python to automate test execution, KPI aggregation (BLER, throughput, latency), and anomaly detection.

Testbed & Environment Integration: Set up, calibrate, and maintain sophisticated lab testbeds incorporating cellular network emulators (call boxes), RF matrix switches, combiners, spectrum analyzers, and wireless channel emulators.

Cross-Functional Collaboration: Partner closely with baseband firmware, connectivity software, RF systems engineering, and hardware teams to reproduce lab/field defects, validate fixes, and verify 3GPP and internal performance specifications.

Minimum Qualifications Education: Bachelor’s or Master’s degree in Electrical Engineering, Computer Engineering, Telecommunications, or a related field.

Cellular Protocol Stack Expertise: Deep technical understanding of 3GPP LTE and 5G NR (Rel-15/16+) across Layer 1 (PHY), Layer 2 (MAC/RLC/PDCP), and Layer 3 (RRC/NAS).

Coexistence & RF Fundamentals: Strong grasp of RF transceiver architectures, in-device coexistence (IDC), antenna isolation, harmonics, intermodulation distortion (IMD), receiver desense, and multi-radio interference mitigation techniques.

Hands-on Validation Experience: Proven track record of system test, integration, or validation using commercial wireless network emulators (e.g., Keysight, Rohde & Schwarz, Anritsu) and RF instrumentation (spectrum analyzers, signal generators, power meters).

Automation & Scripting: Strong proficiency in Python for test automation, instrument control (SCPI/VISA), and automated parsing/analysis of large log datasets.

Analytical Problem Solving: Demonstrated capability to triage and root-cause multi-layer failures across hardware, firmware, and protocol interactions.

Preferred Qualifications Prior experience testing Dual-SIM / Dual-Active (DSDS/DSDA) or complex Cellular scenarios with simultaneous connectivity radios. Working knowledge of 3GPP in-device coexistence specifications (e.g., Rel-11+ IDC mechanisms, autonomous denial, auxiliary information reporting). Experience with non-cellular wireless standards (Wi-Fi 6/6E/7 - 802.11ax/be, Bluetooth 5.x, UWB, NFC, GNSS). Familiarity with data analysis and visualization libraries (Pandas, NumPy, Plotly/Matplotlib) for large-scale test KPI dashboards. Contributions to 3GPP standardization (RAN4, RAN5) or carrier certification testing for coexistence and performance. Proficiency in diagnosing complex system-level issues through lab/field experimentation, analytics, and log analysis. Excellent analytical & critical thinking skills, Excellent communication & interpersonal skills.

Pay & Benefits At Apple, base pay is one part of our total compensation package and is determined within a range. This provides the opportunity to progress as you grow and develop within a role. The base pay range for this role is between $150,400 and $277,600, and your base pay will depend on your skills, qualifications, experience, and location.

Apple employees also have the opportunity to become an Apple shareholder through participation in Apple’s discretionary employee stock programs. Apple employees are eligible for discretionary restricted stock unit awards, and can purchase Apple stock at a discount if voluntarily participating in Apple’s Employee Stock Purchase Plan. You’ll also receive benefits including: Comprehensive medical and dental coverage, retirement benefits, a range of discounted products and free services, and for formal education related to advancing your career at Apple, reimbursement for certain educational expenses - including tuition. Additionally, this role might be eligible for discretionary bonuses or commission payments as well as relocation. Learn more about Apple Benefits

Note: Apple benefit, compensation and employee stock programs are subject to eligibility requirements and other terms of the applicable plan or program.

EEO Statement Apple is an equal opportunity employer that is committed to inclusion and diversity. We seek to promote equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics. Learn more about your EEO rights as an applicant

Accessibility At Apple, we believe accessibility is a fundamental human right. You’ll find that idea reflected in everything here - in our culture, our benefits and our digital tools. By welcoming as many perspectives as possible, we help you build a career where you feel like you belong.

Learn about accessibility in Apple’s workplace

Learn about reasonable accommodations for job applicants

Application Deadline Apple accepts applications to this posting on an ongoing basis.

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More about this job

Skills

Hardware testing methods
Firmware
Root cause analysis
Test automation
Python
Electrical engineering
Computer engineering
NAS
Problem solving
Reporting
Data analysis
NumPy
Critical thinking
Communication skills
Interpersonal skills

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