RF Test Engineer

Black Rock Groups; Fremont (CA); On-site; USD 90,000 - 115,000; Full time

Benefits offered by this job

Benefits package

Job summary

Tech Mahindra in Fremont, California is seeking an RF Test Engineer to configure, calibrate, and operate OTA test chambers across FR1 and FR2, delivering precise radiated performance measurements for 5G NR and WiFi/BT platforms.

You will work onsite at a customer location, perform regulatory-aligned testing, and collaborate with TCB teams to prepare validation data for FCC/CE submissions; a Bachelor's in EE or related field and 2–5+ years' OTA RF lab experience are required.

Qualifications

• Bachelor's degree in a relevant field; RF testing experience required.
• 2 to 5+ years hands-on OTA testing in RF lab.

Responsibilities

• Configure, calibrate, and operate OTA test chambers across FR1 and FR2 frequency ranges.
• Perform radiated measurements (TRP, TIS, EIRP, EIS, MIMO OTA).
• Validate satellite positioning performance with A-GNSS OTA sensitivity evaluations.
• Interface with TCB and project managers to package validation data for regulatory submissions (FCC, CE, ISED).

Skills

OTA testing

RF measurement

Chamber testing

Python

Instrument control

Lab equipment

Regulatory knowledge

Education

Bachelor's Degree in EE/Telecommunications

Master's with RF/EM focus

Tools

Keysight UXM 5G

Rohde & Schwarz CMX500/CMW500

Anritsu MT8000A

ETS-Lindgren EMQuest

Job description

Job Title: RF Test Engineer

Location: Fremont, California

Onsite/ Remote: Day 1 Onsite at customer location

The pay range for this role is $90k- $115k per annum including any bonuses or variable pay. Tech Mahindra also offers benefits like medical, vision, dental, life, disability insurance and paid time off (including holidays, parental leave, and sick leave, as required by law). Ask our recruiters for more details on our Benefits package. The exact offer terms will depend on the skill level, educational qualifications, experience, and location of the candidate.

Core Responsibilities

1. Test Execution & System Validation

• Configure, calibrate, and operate multi-axis OTA anechoic test chambers (e.g., ETS-Lindgren AMS systems) across FR1 (Sub-6 GHz) and FR2 (mmWave) frequency ranges.
• Perform comprehensive radiated measurements including TRP, TIS, EIRP, EIS, and MIMO OTA throughput testing.
• Validate satellite positioning performance by executing A-GNSS (GPS/Glonass/Galileo) OTA sensitivity evaluations.
• Conduct systematic RF Desensitization (Desense) investigations to isolate internal platform noise (e.g., from display panels, high-speed digital buses, or power supplies) degrading receiver performance.
• Maintain chamber verification logs, performing routine range calibrations (path loss measurements using standard gain horn antennas) to ensure measurement repeatability and system accuracy.

2. Test Plan Compliance & Certification

• Execute testing matrices in strict accordance with CTIA Test Plan for Wireless Device Over-the-Air Performance, 3GPP Technical Specifications (TS 38.521 / 38.151), and specific North American wireless operator requirements.
• Analyze test data against strict regulatory and carrier acceptance limits, identifying and logging edge-case failures.
• Interface directly with the Telecommunications Certification Body (TCB) team and project managers to package validation data for formal regulatory submissions (FCC, CE, ISED).

Technical Requirements & Qualifications

Education & Experience

• Bachelor's Degree in Electrical Engineering, Telecommunications, or a highly related technical discipline (Master's Degree with an RF/Electromagnetics focus preferred).
• 2 to 5+ years of direct, hands‑on experience in an RF laboratory environment specifically executing OTA testing.

Technical Skills & Instrumentation Knowledge

• Chamber Architectures: Deep familiarity with conical-cut and great-circle-cut anechoic chamber testing geometries.
• Wireless Protocols: Solid baseline knowledge of 5G NR (SA/NSA), LTE Advanced, Wi‑Fi 7 / 6E (802.11be/ax), Bluetooth, and UWB physical layer parameters.
• RF Test Equipment: Hands‑on operational mastery of network analyzers, spectrum analyzers, and radio communication testers (e.g., Keysight UXM 5G, Rohde & Schwarz CMX500 / CMW500, Anritsu MT8000A).
• Software & Automation: Experience utilizing automated lab software suites (e.g., ETS-Lindgren EMQuest, R&S AMS32). Proficiency in Python for parsing .csv data files and interfacing with instrument APIs is highly preferred.
• Foundational Knowledge: Solid grasp of Smith charts, impedance matching, polarization alignment, Friis transmission equations, and measurement uncertainty calculations.

Soft Skills & Workplace Competencies

• Analytical Problem Solving: A methodical approach to isolating variables when troubleshooting system anomalies or uncharacteristic device failures inside the chamber.
• Meticulous Documentation: Strong attention to detail when logging hardware configurations, test settings, and EUT (Equipment Under Test) software build versions.
• Communication: Ability to clearly explain complex radiated failures and spatial pattern nulls to non‑RF internal partners.

Tech Mahindra is an Equal Employment Opportunity employer. We promote and support a diverse workforce at all levels of the company. All qualified applicants will receive consideration for employment without regard to race, religion, color, sex, age, national origin, or disability. All applicants will be evaluated solely based on their ability, competence, and performance of the essential functions of their positions with or without reasonable accommodations. Reasonable accommodations also are available in the hiring process for applicants with disabilities. Candidates can request a reasonable accommodation by contacting the company ADA Coordinator at [e-mail].