Hiring : Modem Test Engineer : MTV, CA Work from office 5 days a week.

Noblesoft Technologies; Mountain View (CA); On-site; USD 100,000 - 130,000; Full time

Job summary

A technology solutions company is seeking a Modem Test Engineer to work in Mountain View, CA. The role requires strong hands-on testing experience in cellular modem chipsets, specifically 5G/4G/3G, along with expertise in 3GPP specifications. Candidates should have collaboration skills to work with cross-functional teams and experience with test equipment used for certification. This is a contract position requiring office presence five days a week.

Qualifications

• 8+ years of hands-on testing experience in cellular modem chipsets.
• Strong understanding of 3GPP and Carrier specifications for LTE and NR.
• Non-Terrestrial Networks (NTN) testing experience is highly desirable.

Responsibilities

• Execute test plans targeting 5G NR and LTE L2/L3 protocol features.
• Analyze logs and troubleshoot issues in UE/network protocol interactions.
• Collaborate with cross-functional teams to drive testing activities.

Skills

Hands-on testing experience in 5G/4G/3G

Understanding of 3GPP and Carrier specifications

Trace analysis tools

Cross-functional collaboration

Log Analysis and Debugging

Education

Bachelor’s or Master’s in Electrical Engineering

Tools

Keysight

Rohde & Schwarz

Job description

Modem Test Engineer

Location: MTV, CA Work from office 5 days a week.

Duration: Contract

• Bachelor’s or master’s degree in electrical engineering, Computer Science, Telecommunications, or related field.
• 8+ years of hands‑on testing experience in 5G/4G/3G Cellular modem chipset or device (UE) Protocol conformance, performance, and interoperability.
• Strong understanding of 3GPP and Carrier specifications for LTE and NR.
• Execute test plans targeting 5G NR and LTE L2/L3 protocol features (RLC, PDCP, MAC, RRC, NAS).
• Expertise in 3GPP/IMS Protocol call flows to analyze logs and troubleshoot issues in UE/network protocol interactions.
• Ability to isolate complex issues across multiple protocol layers and identify root causes using trace analysis tools.
• Collaborate with cross‑functional teams to lead and drive testing activities.
• Hands‑on experience with test equipment for GCF, PTCRB, Carrier certification (e.g., Keysight, Rohde & Schwarz).
• Non‑Terrestrial Networks (NTN) testing experience is highly desirable.
• Protocol testing
• Conformance testing
• Protocol level Testing
• Experience on Log Analysis and Debugging