Modem Engineer (C/C++)

GlobalLogic; Basking Ridge (NJ); On-site; USD 130,000 - 140,000; Full time

Benefits offered by this job

Flexible work schedules

Health and life insurance

Competitive salaries

Professional development opportunities

Job summary

GlobalLogic is looking for a Modem & Chipset Systems Engineer in Basking Ridge, NJ. This role involves supporting cellular modems, optimizing performance, and diagnosing issues across multiple chipsets. You will work with 5G, LTE and IoT technologies, providing critical support for device telemetry and network diagnostics. A Bachelor's or Master's in a relevant field is required. The pay range is estimated between $130,000 and $140,000 per year, reflecting solely the base salary.

Qualifications

• Deep expertise in cellular modems and RF stacks.
• Experience with Qualcomm, MediaTek, and Apple chipsets.
• Knowledge of 5G, LTE, and NB-IoT platforms.

Responsibilities

• Analyze and optimize modem behavior on various SoCs.
• Support vehicle certification and testing.
• Work with chipset vendors and carriers for troubleshooting.

Skills

Expertise in cellular modems

Debugging and performance optimization

Carrier networks knowledge

5G and LTE technologies

Crash log analysis

Education

Bachelor’s or Master’s degree in Computer Science, Computer or Electrical Engineering, Mathematics

Tools

QPST

QXDM

Apple baseband logs

RF & protocol analyzers

Job description

We are seeking a Modem & Chipset Systems Engineer with deep expertise in cellular modems, RF stacks, and SoC integration across Qualcomm, MediaTek, and Apple chipsets. This role will support device telemetry, network diagnostics, performance optimization, and firmware-level integration across carrier networks, including 5G, LTE, and NB-IoT platforms. This role bridges device hardware, modem firmware, and network systems, enabling reliable data ingestion, remote diagnostics, and performance tuning for large-scale connected-device platforms.

Key Responsibilities

• Analyze, debug, and optimize modem behavior on Qualcomm, MediaTek, and Apple SoCs
• Work with baseband firmware, modem logs, and RF metrics to diagnose network and device issues
• Support 5G, LTE, VoLTE, IoT, and eSIM modem stacks
• Perform call flow, attach, handover, throughput, and latency analysis
• Interpret and analyze:
• RSRP, RSRQ, SINR, CQI, BLER, throughput
• Attach failures, PDP context, IMS registration
• Mobility, roaming, and network fallback
• Work with modem telemetry pipelines feeding DMAT-style analytics platforms

Firmware & OS Integration

• iOS baseband interfaces
• Linux-based embedded systems
• Crash logs
• Baseband dumps
• Vendor debug tools (QPST, QXDM, MTK tools, Apple baseband logs)
• Support network certification, testing, and performance tuning
• Support field escalations involving: Poor signal, Call drops, Data failures, Device-network mismatches.
• Work with OEMs, chipset vendors, and carrier teams to resolve root causes

Required Technical Skills

Chipsets & Modems

• MediaTek Dimensity modem stacks

Wireless Technologies

• 5G NR (SA & NSA)
• IoT (NB-IoT, LTE-M)
• IMS, SIP, APN, eSIM
• Baseband log decoding
• RF & protocol analyzers
• Android/iOS modem logging

Operating Systems

• iOS
• Embedded Linux

Networking Knowledge

• Network attach & session lifecycle
• Carrier core network interaction

Preferred Skills

• Experience working with carrier device labs
• Knowledge of telemetry ingestion platforms
• Familiarity with OTA firmware pipelines
• Understanding of device certification and carrier acceptance testing

Education

• Bachelor’s or Master’s degree in Computer Science, Computer or Electrical Engineering, Mathematics, or a related field

GlobalLogic estimates the starting pay range for this role to be performed in Basking Ridge NJ, and the salary range will be $130,000/yr to $140,000/yr and reflects base salary only. This pay range is provided as a good faith estimate, and the amount offered may be higher or lower. GlobalLogic takes many factors into consideration in making an offer, including candidate qualifications, work experience, operational needs, travel and onsite requirements, internal peer equity, prevailing wage, responsibilities, and other market and business considerations.

What We Offer

Exciting Projects

Come take your place at the forefront of digital transformation! With clients across all industries and sectors, we offer an opportunity to work on market-defining products using the latest technologies.

Collaborative Environment

You can expand your skills by collaborating with a diverse team of highly talented people in an open, laidback environment — or even abroad in one of our global centers or client facilities!

Work-Life Balance

GlobalLogic prioritizes work-life balance, which is why we offer flexible work schedules and opportunities to work from home.

Professional Development

We provide continuing education classes, professional certification and training (technical, soft skills, language, and communication skills) to help you realize your professional goals. Being part of a global organization, there are additional learning opportunities through international knowledge exchanges.

Excellent Benefits

We provide our employees with competitive salaries, health and life insurance, short-term and long-term disability insurance, flexible spending accounts, and PTO and holidays.