Jobs in the United States

25+ jobs

Added just now
RH
Software Engineer
Robert Half
Orlando, FL
- $80 to $85 USD / hour
We are looking for a Software Engineer to join the client’s engineering team within Workforce Technology. This role will play a key role in designing, building, and supporting the…
Added just now
RH
Systems Engineer - OEM Products
Robert Half
Lavergne, TN
- $130,000 to $150,000 USD / year
Our client is seeking a highly skilled Systems Engineer to bring formal systems engineering expertise and best practices into a growing product development organization.
Added 2 mins ago
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 3 mins ago
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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 3 mins ago
A
Quality Engineer
Actalent
Phillipsburg, NJ
- $40 to $45 USD / hour
Job Title: Quality EngineerJob DescriptionThe Quality Engineer plays a key role in ensuring that medical device products and processes comply with FDA 21 CFR 820, ISO standards, and…
Added 3 mins ago
A
Electronics Engineer
Actalent
Melbourne, FL
- $70 to $85 USD / hour
Job Title: Senior Electrical Engineer High-Speed Digital HardwareJob DescriptionThis Senior Electrical Engineer role focuses on leading the design, development, integration, and validation…
Added 3 mins ago
Mechanical Design Engineer
Actalent
Raleigh, NC
NOW HIRING: Mechanical Design EngineerWe are seeking an experienced Mechanical Design Engineer to support the design, development, validation, and release of industrial Ethernet networking…
Added 4 mins ago
A
Process Engineer
Actalent
Scottsdale, AZ
- $100,000 to $130,000 USD / year
Process Engineer IIIJob DescriptionThe Level 3 Process Engineer plays a critical role in developing, validating, and optimizing manufacturing processes for medical devices in a regulated…
Added 4 mins ago
A
Electrical Engineer
Actalent
Nunica, MI
- $55 to $60 USD / hour
The Sr. Electrical Engineer is responsible for the design, integration, and validation of electrical systems, wiring harnesses, and vehicle-related electrical components. This role supports…
Added 4 mins ago
A
Industrial Engineering Analyst
Actalent
Austin, TX
- $65 to $70 USD / hour
…Austin, TX Job DescriptionThe Industrial Engineering Analytics Engineer leads the development and application of advanced analytical models to improve manufacturing efficiency, capacity…
Added 4 mins ago
Senior Software & AI Engineer
Abbott Laboratories
Sylmar, CA
The Senior Software & AI Engineer position works onsite in Sylmar, California within Abbott's Cardiac Rhythm Management (CRM) business.
Added 5 mins ago
BC
Field Service Engineer - Little Rock, AR
Beckman Coulter, Inc.
Little Rock, AR · Cabot, AR
- $34 to $38 USD / hour
…than one million tests are run on Beckman Coulter Diagnostics systems, impacting 1.2 billion patients and more than three million clinicians per year. From uncovering the next clinical…
Added 7 mins ago
K
Mechanical Engineer 3
Kforce
Fremont, CA
- $65 to $70 USD / hour
Support thermal, flow, structural, and chemical reaction simulations for design validation and optimization of semiconductor equipment, sub-systems, and components
Added 10 mins ago
Sr. Quality Engineer, New Product Development
BioTissue Holdings Inc
Miami, FL
The Senior Quality Engineer, New Product Development/Introduction is responsible for leading quality planning, risk management, validation, and compliance activities throughout the product…
Added 12 mins ago
Intelligent Automation Engineer - Onsite - Shiloh IL
Silverthorne Advisory Group LLC
Scott AFB, IL
Silverthorne Advisory Group is seeking a motivated and technically skilled Intelligent Automation Engineer to support an exciting and growing opportunity within the Defense sector at Scott…
Added 12 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
AI Software Evaluation Engineer, Siri AI Quality
Apple
Cupertino, CA
Apple's Siri AI Quality team is looking for a passionate and skilled AI Software Evaluation Engineer to join our mission of delivering the highest-quality AI experiences to millions of…
Added 13 mins ago
Mechanical Engineer II
Divergent
Torrance, CA
Divergent is building the new industrial age. Every day, our teams design, manufacture, and assemble advanced systems for some of the world’s most demanding industries. Our integrated…
Added 14 mins ago
Piping Field Engineer
Bechtel
Chandler, AZ
…and packaging, material management, quantity verification and validation, and support the coordination of safe and quality piping installations. Supporting superintendents, craft…
Added 14 mins ago
Area Field Engineer
Bechtel
Chandler, AZ
…and packaging, material management, quantity verification and validation, safety and quality control, technical inspection and testing knowledge, and subcontract coordination. Your…
Added 14 mins ago
Senior Software Engineer, Agentic Systems
NVIDIA USA
Remote, United States
We are looking for a Senior Software Engineer to help build NeMo Platform, NVIDIA’s product for developing, evaluating, deploying, and operating AI systems at scale. This role will focus on…
Added 15 mins ago
Cybersecurity Engineer
Chugach Government Solutions
SAN DIEGO, CA
Identifies technology limitations and deficiencies in existing systems and associated processes, procedures, and methods.
Added 15 mins ago
M
Staff Engineer
MOXFIVE
Remote, United States
- $200,000 to $250,000 USD / year
- Track Record: You've designed and shipped distributed systems that are still running in production years later, and you can tell us what you'd change. Typically this comes from time in a…
Added 16 mins ago
S
Staff / Senior Staff Test Automation Engineer
SciTec
Boulder, CO
- $102,000 to $157,000 USD / year
SciTec is seeking a Test Automation Engineer to design, build, and maintain a continuous deployment pipeline (Kubernetes manifests, Helm charts, ArgoCD, Ansible Playbooks) of an integrated…
Added 16 mins ago
Senior Quality Assurance Engineer
Teledyne Micropac, Inc.
Garland, TX
Teledyne Micropac is looking for a Senior Quality Assurance Engineer is responsible for ensuring products, processes, and quality systems consistently meet customer, regulatory, and company…

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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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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