Video Quality Characterization Engineer

Overview

Join our team as a Video Engineer and drive the quality assurance, monitoring, and testing of multimedia services. You'll work on evaluating and selecting tools and metrics, developing test plans, and conducting performance analysis of video services, ensuring optimal multimedia Quality of Experience (QoE). Collaborate with cross-functional teams to enhance our testing methodologies and platform capabilities.

Responsibilities

• Design comprehensive test plans and execute them across various mobile operating systems (e.g., Android, iOS), implementing automation for realistic user interaction patterns.
• Analyze video service performance by evaluating streaming quality, factors causing degradation, encoding/decoding efficiency, and playout/prefetching protocols.
• Oversee the QA, monitoring, and testing of multimedia services including short-form video and real-time communication on lab testbeds.
• Evaluate and select testing tools, metrics, and equipment such as Wireshark, VLC Media Player, and FFmpeg to assess multimedia QoE.
• Capture key QoE metrics, such as video loading delay and rebuffering events, and normalize these by content complexity.
• Collaborate with vendors and teams to maintain platform stability and enhance video QoE with testing support and troubleshooting.
• Synthesize test results into actionable reports and dashboards for stakeholders, using SQL and Python for data extraction and analysis.
• Manage and operate test devices and automation systems, ensuring continuous operation and swift resolution of any user account or campaign execution issues.
• Proven ability to manage a suite of test devices and execute automated benchmarking campaigns.
• Contribute to detailed documentation, including system diagrams, test results, and procedural methods.

Minimum Qualifications

• Experience with mobile OS platforms, including test automation on Android and iOS.
• Proven ability to manage a suite of test devices and execute automated benchmarking campaigns.
• Experience working in a wireless test lab environment.
• Proficiency in Python programming required.
• Exposure to SQL is required.
• Experience in evaluating multimedia quality using industry-known tools.
• Experience in evaluating network using industry-known tools (e.g., Wireshark).

Preferred Qualifications

• Familiarity with the DASH protocol for efficient streaming and real-time communication testing.
• Practical understanding of video codecs (H.264/AVC, VP9, AV1) is a plus.