Modem Engineer; C​/C++

We are seeking a Modem & Chipset Systems Engineer with deep expertise in cellular modems, RF stacks, and SoC integration across Qualcomm, Media Tek, 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.

• Analyze, debug, and optimize modem behavior on Qualcomm, Media Tek, and Apple So Cs
• 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

• 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

• Media Tek Dimensity modem stacks

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

• iOS
• Embedded Linux

• Network attach & session lifecycle
• Carrier core network interaction

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

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

Global Logic 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. Global Logic 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.

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.

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!

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

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.

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.