Test Engineer

WiFi test engineer will provide troubleshooting support and optimization analysis.

The individual will be part of a cross-functional team developing automation and testing of technologies and applications using Cable Modems / Multimedia Terminal Adapters (MTA).

The primary responsibility is the in-lab integration, and test of MTAs; determine root cause of problems and escalate issue with the appropriate code fix for resolution

Strong understanding of the basic RF parameters and signal flows (frequency, power-level, modulation methods, channel widths, signal losses, SNR etc.) in a CATV system

Understanding of DHCP/TFTP protocols and DOCSIS provisioning suite

Understanding IP switching and routing dynamic routing protocols (i.e. RIP, OSPF, ISIS & BGP)

Proficient at configuration scripting via industry standard CLI interfaces

Basic understanding of CPE device configuration files, service flows and CPE troubleshooting

Understanding of the OSI reference model, specifically Layer 2 (MAC) as it relates to DOCSIS

Knowledge of IEEE 802 standards for Local Area Networks and Metropolitan Area networks

Experience with WiFi products and LAB WiFi setup and isolation

Knowledge of WiFi spectrum and impact on various channels and frequencies

Experience with WiFi interference and isolation analysis and modem radio frequencies. Core Responsibilities:

Execute scripted test cases on WiFi CPE equipment using pre-defined test plans and technical requirements as input. Design and Ad-Hoc test scripts and test cases.

Analyze test execution results and record test data in ALM systems.

Report and track defects and provide regular updates on test status.

Technical interface with Comcast Engineering teams to reproduce, isolate, and troubleshoot issues found in testing, and / or reported by the customer.

Participate in daily scrum meetings to provide status, owning next actions for testing.

Prepare Test Strategy and Test Schedule, take an active role in Test Project Planning meetings.

Active participation in test design, test execution, and test reporting activities. Requirements:

Minimum 5 years’ experience professional Quality Assurance testing experience

Possess experience with, and understanding of:

Test Planning / Test Execution methodologies

WiFi protocol

Experience with test automation tools such as JUnit, Selenium, QuickTest, or Rational Soft Skills.

Excellent skills in communicating with developers.