Jobs in the United States

25+ jobs

Added 5 mins ago
G
Electrical Design Engineer
GPAC
Mankato, MN
- $90,000 to $125,000 USD / year
Apply now for the next step in your Electrical Design Engineer Career!
Added 29 mins ago
Senior Software Engineer - Monetization Platform
Indeed
Dover, DE
As a Senior Software Engineer at Indeed, you will contribute to the development and evolution of software systems that support core products and services used by people around the world.…
Added 47 mins ago
A
Test Equipment Design Engineer
Aerotek
Berkeley, CA
- $69.44 to $104.17 USD / hour
Job Title: Test Equipment Design EngineerJob DescriptionWe are seeking a hands-on Test Equipment Design Engineer to design and develop custom electrical test infrastructure supporting…
Added 49 mins ago
Federal Project Director
Department Of Energy
Upton, NY
…advancement. Veterans shape the future of energy As a General Engineer/Federal Project Director, you will: Manage the overall planning, execution, and baseline performance (scope, cost, and…
Added 49 mins ago
Technical Supervisor Substations Operations
Orange & Rockland Utilities Inc.
MONSEY, NY
…conducts field investigations and prepares associated reports, and test memorandums within the field or fields of responsibility.This position does not provide employment pursuant to the…
Added 49 mins ago
Electrical Engineer
Whitcraft LLC dba Pursuit Aerospace
WHITESBORO, NY
…people, processes, and products. About the Opportunity:As an Electrical Engineer, you will design, maintain, and improve electrical systems, machining, and equipment to optimize production…
Added 50 mins ago
Sr. Process Engineer
Asahi Kasei America
TROY, NY
…Company: Crystal IS, Inc. Job Description: JOB TITLE: Sr. Process Engineer Department: Manufacturing & Substrate Location: Green Island, NY…
Added 50 mins ago
Engineer Protection & Control
Avangrid Service Co
BINGHAMTON, NY
Job Title: Engineer - Protection & Control Location: Rochester, NY (3 City Center); Binghamton, NY; Elmira, NY. Work type: Office (on-site) The salary range for this position is dependent…
Added 51 mins ago
Field Service Engineer
Siemens
Albany, NY
We are looking for a Field Service Engineer. This position will be based in Albany, NY.
Added 51 mins ago
Mechanical Engineer
CACI International
Rochester, NY
CACI is looking to hire a Mechanical Engineer in Rochester, NY. This organization specializes in designing and building hardware and software to meet our customers’ next requirement. We…
Added 51 mins ago
CH
Principal Systems Engineer
Carestream Health
ROCHESTER, NY
- $119,200 to $158,900 USD / year
…differentials for the position.Position Summary:The NDT Systems Engineer is positioned within R&D and responsible for the end-to-end technical definition, development, integration, and…
Added 51 mins ago
Engineer Protection & Control
Avangrid Service Co
ROCHESTER, NY
Job Title: Engineer - Protection & Control Location: Rochester, NY (3 City Center); Binghamton, NY; Elmira, NY. Work type: Office (on-site) The salary range for this position is dependent…
Added 1 hour ago
Electrical Engineer
Bonneville Power Administration
Vancouver, WA
…Bonneville Power Administration (BPA). A successful candidate in the Electrical Engineer position will serve as a lead engineer on quality assurance, failure analysis and safety related…
Added 1 hour ago
Electrical Engineer
Bonneville Power Administration
Vancouver, WA
Added 1 hour ago
Electrical Engineer
Bonneville Power Administration
Vancouver, WA
…Planning/CapabilitiesPlanning (TPP/A/B/C/D) A successful candidate in the Electrical Engineer position will be a senior engineer and technical specialist responsible for a variety of…
Added 1 hour ago
Electrical Engineer
Bonneville Power Administration
Vancouver, WA
…Planning/CapabilitiesPlanning (TPP/A/B/C/D) A successful candidate in the Electrical Engineer position will be a senior engineer and technical specialist responsible for a variety of…
Added 1 hour ago
Electrical Engineer
Bonneville Power Administration
Vancouver, WA
Added 1 hour ago
Radiation Effects Engineer, Amazon Leo
Amazon
Redmond, WA
As a Radiation Effects Engineer, you will join a small team focused on the qualification of electronics components used on a satellites constellation and take an active role in root-cause…
Added 1 hour ago
Hardware Reliability Engineer, Amazon Leo - Optical Inter-Satellite Link (OISL)
Amazon
Redmond, WA
…is at the heart of what we do. We are seeking a Reliability Engineer to join our OISL Reliability team. In this role, you will develop and execute reliability strategies for complex…
Added 1 hour ago
Sr Electrical Engineer, ALG, Amazon Leo Government
Amazon
Redmond, WA
The Sr Electrical Engineer will play a pivotal role in the team delivering innovative and fast-paced analysis and design solutions, focusing on satellite and ground system design and…
Added 1 hour ago
PW
Software Engineer - Data & Engineering Applications
Paccar Winch Inc.
Mount Vernon, WA
- $104,100 to $162,900 USD / year
Software Engineer - Data & Engineering Applications Apply now »
Added 1 hour ago
Solar Performance Engineering Manager - Power Engineering
Kiewit
Lenexa, KS
Ten years' experience as an Engineer or Test Engineer.
Added 2 hours ago
UO
Flight Hardware and System Integration Engineer
University of Colorado Denver
Boulder, CO
- $50,000 to $60,000 USD / year
…familiarity with embedded electronics, sensors, connectors, and electrical integration, python programming experience and basic familiarity with ROS2, strong troubleshooting skills, and the…
Added 2 hours ago
Embedded Software Engineer
Trane Technologies
Clarksville, TN
…driving analytics for greater efficiency, your ideas will help engineer solutions for stronger communities and a sustainable…
Added 2 hours ago
Senior Software Developer
Altamira Technology Corporation
Fort Eisenhower, GA
Design, develop, test, and maintain complex software applications using Java, C++, and other relevant programming languages

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.

Apply About employer

Applications open in a new tab.

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.

Apply About employer

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

Report this job