Field Cellular Test Engineer (5GNR/LTE) – Product Field Testing for Devices

OSI Engineering; Cupertino (CA); On-site; USD 68,880 - 82,656; Full time

Job summary

A leading engineering firm in Cupertino is seeking a Field Cellular Test Engineer to conduct product field testing for next-gen smartphones and devices. The ideal candidate will have 2-8 years of experience in cellular testing, particularly with 5G/LTE, and possess strong analytical and troubleshooting skills. The role involves travel to various locations on short notice and requires excellent communication and decision-making abilities. Competitive pay between $50–$60 per hour based on experience.

Qualifications

• 2–8 years of cellular testing experience (5G/LTE stack).
• Strong understanding of Physical Layer Concepts.
• Hands-on experience with cellular baseband log analysis.

Responsibilities

• Test cellular connectivity of next-gen smartphones and devices.
• Identify and troubleshoot technical issues independently.
• Perform log analysis and report findings.

Skills

Cellular testing experience (5G/LTE)

Analytical skills

Decision-making

Troubleshooting skills

Excellent communication skills

Job description

Field Cellular Test Engineer (5GNR/LTE) – Product Field Testing for Devices

Responsibilities:

• Drive to local and non-local areas on short notice to test cellular connectivity of next-gen smartphones and devices (mix of field and lab work).
• Travel up to 1 hour away, up to 4 days per week. Transportation/driver provided.
• Identify and troubleshoot technical issues independently using strong judgment and problem-solving skills.
• Test, analyze, and validate device performance; adapt quickly without requiring constant direction.
• Perform log analysis in the lab and clearly report data, technical issues, and findings.
• Maintain strong attention to detail and assess testing conditions to ensure accurate results.

Requirements:

• 2–8 years of cellular testing experience (5G/LTE stack).
• Solid understanding of:
• Physical Layer Concepts: MIMO, CQI, MCS, Channel Feedback, RSRP, SNR
• Cellular baseband log analysis for 4G, LTE, and 5G features (hands-on experience required).
• Willingness to learn and expand skills in field testing if lacking direct experience.
• Strong analytical skills, independent decision-making, and ability to troubleshoot field setups.
• Excellent written and verbal communication skills.
• Detail-oriented, adaptable, and focused on problem identification.
• Available to travel locally and non-locally on short notice.

Preferred Qualifications:

• Ability to analyze logs for on-field debugging.

Pay Range: $50–$60/h (DOE)