Jobs in the United States

25+ jobs

Added just now
HB
Front End Software Engineer
HIGH BRIDGE CONSULTING LLC
Vienna, VA
- $100,000 to $140,000 USD / year
They are now looking to add to their team and are looking to hire a "Software Engineer / Technical Delivery Lead”. This role will be based out of Tysons, VA, and is Hybrid
Added 1 min ago
Mechanical Design Engineer
Actalent
Torrance, CA
Work EnvironmentThe Mechanical Design Engineer works in a collaborative engineering environment that is closely integrated with manufacturing, tooling, programming, and inspection…
Added 1 min ago
Manufacturing Electrical Equipment Engineer
Detroit Diesel Corporation
Detroit, MI
…machining operations for heavy-duty engines. As a Controls Engineer, you will play a critical role in ensuring the reliability, performance, and continuous improvement of machining and…
Added 1 min ago
A
Electrical Engineer
Actalent
Melville, NY
- $100,000 to $125,000 USD / year
Job Title: Electrical EngineerJob DescriptionThe Electrical Engineer develops concepts, designs, and documentation for electrical power distribution, control, and instrumentation systems…
Added 1 min ago
Electro Mechanical Engineer
Actalent
Kearny, NJ
Job Title: Electro Mechanical EngineerJob DescriptionThe Electro Mechanical Engineer designs and commissions bespoke reel-to-reel process machines that seamlessly integrate high-precision…
Added 1 min ago
Design Manager
Actalent
Marietta, OH
Engineering Vault ManagerJob DescriptionWe are seeking an experienced Engineering Document Control & Configuration Manager to lead document control and configuration management activities…
Added 1 min ago
QG
Associate Quality Engineer
Quest Global
Windsor, CT
- $23 to $26 USD / hour
Primarily gather, compile, process, and status technical Quality Engineering and related data that helps ensure part and process quality are achieved and sustained. Results are often inputs…
Added 1 min ago
QG
Associate Quality Engineer
Quest Global
Windsor, CT
- $23 to $26 USD / hour
Primarily gather, compile, process, and status technical Quality Engineering and related data that helps ensure part and process quality are achieved and sustained. Results are often inputs…
Added 2 mins ago
A
Process Engineer
Actalent
Scottsdale, AZ
- $100,000 to $130,000 USD / year
Utilize Statistical Process Control (SPC) and other data-driven tools to monitor process performance and identify opportunities for improvement.
Added 2 mins ago
Plant Layout Engineer
Actalent
Austin, TX
Manage change and version control for models, maintain a clear release and approval history, and ensure data integrity across all BIM assets.
Added 2 mins ago
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Materials And Process Engineer
Actalent
Austin, TX
- $60 to $68 USD / hour
Job Title: Materials and Process EngineerJob DescriptionAs a Materials and Process Engineer, you will own the full lifecycle of material flow and process equipment, from concept development…
Added 2 mins ago
Senior Microwave & Linac Scientist
x Varian Medical Systems, Inc.
United States
We are looking for an experienced microwave and linear accelerator (Linac) engineer with deep expertise in all elements of the RF chain for powering electron Linacs. The candidate should…
Added 3 mins ago
SI
DevOps Engineer – Member of Technical Staff (MTS)
Salesforce, Inc.
CA
- $117,200 to $194,200 USD / year
The Salesforce Digital Enterprise Technology (DET) team is looking for an Engineer to join our Engineering and Shared Services tooling team to help build out best-in-class Continuous…
Added 5 mins ago
Full Stack Software Engineer
System One
Cape Canaveral, FL
Experience working with parquet and Time Series data design/storage
Added 7 mins ago
Process Automation Engineer II
Freeport McMoRan
Parshall, CO
…direction on and improve the performance of site Industrial Control Systems. You follow and promote safety and environmental programs and practices, communicate safety implications related…
Added 7 mins ago
G
Electrical Design Engineer
GPAC
Pocahontas, AR
- $80,000 to $110,000 USD / year
Product Development: Design and develop electrical schematics, control systems, wiring harnesses, and printed circuit board (PCB) layouts.
Added 9 mins ago
Software Development Engineer, AWS Experience Analytics
Amazon.com Services LLC
Seattle, WA
…the way people manage and derive insights from vast volume of data in the cloud? Do you want to have direct impact on a large number of AWS users? Are you interested to build scalable…
Added 9 mins ago
Senior Flight Test Engineer - Advanced Effects (Steelfin)
Anduril Industries
Costa Mesa, CA
…OS, an AI-powered operating system that turns thousands of data streams into a realtime, 3D command and control center. As the world enters an era of strategic competition, Anduril is…
Added 9 mins ago
Senior Flight Test Engineer - Advanced Effects (Barracuda)
Anduril Industries
Costa Mesa, CA
…OS, an AI-powered operating system that turns thousands of data streams into a realtime, 3D command and control center. As the world enters an era of strategic competition, Anduril is…
Added 10 mins ago
Continuous Improvement Engineer
Royal Canin USA Inc
United States
The CI Engineer is a key contributor to the Site Team and Focused Improvement (FI) Pillar, driving sustainable improvements in Product Conversion Cost (PCC) through efficiency gains and…
Added 10 mins ago
Modem System Test Engineer - Wireless Technologies and Ecosystems |
Apple
CA
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…
Added 12 mins ago
Lead Electrical Field Engineer
Bechtel
Chandler, AZ
Review construction drawings, specifications, models, vendor data, material requirements, RFIs, and field changes to support timely and practical field execution.
Added 13 mins ago
Cybersecurity Engineer
Chugach Government Solutions
SAN DIEGO, CA
…industry CS best practices, to properly protect all sensitive data. As part of the overall Risk Management Framework, the position will support planning, perform testing, assess existing…
Added 13 mins ago
Cloud Engineer
EPC POWER CORP.
Remote, United States
EPC Power is looking for a Cloud Engineer to help design, build, and maintain the cloud infrastructure that powers our software products and data platforms. You will work closely with other…
Added 13 mins ago
Manufacturing Systems Engineer
Lincoln Electric
Cleveland, OH
The Operational Transformation Systems Engineer is responsible for driving manufacturing excellence through the integration of industrial engineering principles, manufacturing systems, data…

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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