Cellular Test Engineer V

Intelliswift - An LTTS Company; San Francisco (CA); On-site; USD 140,000 - 200,000; Part time

Job summary

Intelliswift - An LTTS Company is seeking a Senior Validation Engineer for a 12-month contract in San Francisco, focusing on cellular device validation and lab bring-up.

The ideal candidate has 10+ years in cellular connectivity, experience with Qualcomm chipsets, LTE/5G NR protocols, and proficiency in log analysis using QXDM/QCAT/PCAT and Wireshark. Knowledge of base station emulators and RF test gear is required.

Qualifications

• 10+ years of hands-on cellular connectivity, modem integration, or cellular system test.
• Bachelor’s or Master’s degree in Electrical Engineering, Telecommunications, Computer Engineering, or related field.
• Strong understanding of LTE/5G NR protocol stack (PHY, MAC, RLC, PDCP, RRC, NAS).
• Experience configuring cellular chipsets at device level (Qualcomm, MediaTek, Samsung).
• Proficiency with log extraction and analysis tools such as QXDM / QCAT / PCAT, plus Wireshark.

Responsibilities

• (Not explicitly listed in the HTML)

Skills

Cellular validation

Qualcomm chipsets

Python scripting

Log extraction

Lab bring-up

RF metrics

Wireshark

Base station emulators

Education

Bachelor’s or Master’s in Electrical Engineering

Tools

QXDM

QCAT

PCAT

Wireshark

Keysight UXM

Anritsu MT8000

R&S CMX/CMW

Job description

Duration: 12 Months Contract on W2 (possible extension up to 30 months)

Job Description :

Must-Have Skills

• Call box experience — demonstrated hands-on work with the base station emulators / call boxes used for cellular validation.
• Cellular knowledge — a minimum of 2–5 years of direct cellular experience (within an overall 10+ year career profile).
• Qualcomm chipset experience — direct, hands-on work with Qualcomm chipsets, which are used across all Meta device validation.

Nice-to-have Skills

• Industry experience with Qualcomm chipsets and Qualcomm logs — the single biggest differentiator on a resume, since Qualcomm logging is used throughout validation.
• Background at Apple or a major telecom/OEM — these profiles tend to carry the relevant Qualcomm and cellular device exposure.
• Test automation experience — Python/Bash scripting for repeatable characterization, regression testing, and log parsing.

Required Qualifications

• Bachelor's or Master's degree in Electrical Engineering, Telecommunications, Computer Engineering, or a related field.
• 10+ years of hands-on experience in cellular device connectivity, modem integration, or cellular system test.
• Solid understanding of the end-to-end cellular protocol stack (PHY, MAC, RLC, PDCP, RRC, NAS) and core network procedures for LTE and 5G NR.
• Strong grasp of cellular concepts: scheduling, link adaptation, power control, and key RF metrics (RSRP, RSRQ, SINR, CQI).
• Experience configuring cellular chipsets at the device level (e.g., Qualcomm, MediaTek, Samsung modules).
• Proficiency with log extraction and analysis tools such as QXDM / QCAT / PCAT, plus Wireshark and vendor-specific modem tools.
• Hands-on experience setting up the network side, using base station emulators (Keysight UXM, Anritsu MT8000, R&S CMX/CMW) and/or live or private networks.
• Proven track record of lab bring-up of new cellular hardware or software and of root-causing complex connectivity issues.
• Comfortable working with lab equipment: spectrum analyzers, signal generators, RF shield boxes, channel emulators, and power analyzers.
• Experience with technologies RedCap and low-power optimization.
• Scripting and automation skills (Python, Bash) for test automation and log parsing.