Device Certification Engineer I
US-CO-Littleton
Attract-careers1
Req #: 97607
Type: Fulltime-Regular
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Overview: Our Wireless Technology team is pioneering the future of connectivity. We're developing and enhancing a unique hybrid network model-combining our advanced, cloud-native 5G core with the nationwide reach of our partners. This approach ensures our network is flexible and powerful, designed to satisfy the social, economic, and transformative needs of the changing world. Responsibilities: Candidates must be willing to participate in at least one in-person interview, which may include a live whiteboarding or technical assessment session. Mobile devices require rigorous validation to eliminate performance degradation, dropped calls, and throughput failures prior to market launch. This role resolves device hardware and software defects through systematic manual and automated testing across LTE and 5G networks. The position bridges technical gaps between internal engineering teams and external OEM vendors to ensure pre-release hardware meets strict operational standards. Root-cause log analysis and precise defect reporting ensure seamless network integration and optimal device performance. What Success Looks Like (Objectives) * Conduct manual and automated test suites across iOS and Android smartphones, tablets, and wearables to verify compliance with technical requirements and industry standards * Analyze device logs using chipset vendor diagnostics and custom software to identify root causes of call failures, throughput bottlenecks, and network handovers * Leverage AI-assisted log analysis tools to accelerate anomaly detection and automate defect classification during testing cycles * Document hardware and software bugs in tracking platforms with clear replication steps to drive timely resolution with OEM vendors * Maintain physical lab environments, flash pre-release firmware, and configure network simulators for specific call and data scenarios Qualifications: Core Skills and Competencies (What You'll Bring) * Strong foundational knowledge of wireless protocols and network technologies, including 4G LTE, 5G NR, Wi-Fi, and Bluetooth * Hands-on technical proficiency with iOS and Android operating systems, developer configurations, firmware flashing, and command-line interfaces such as Android Debug Bridge (ADB) * Expertise in operating network diagnostic software and interpreting complex technical log files to isolate intermittent performance issues * AI literacy and application skills to enhance data interpretation, streamline defect triage, and optimize engineering workflows * Strong written communication and decision-making skills to articulate complex engineering issues through structured test reports * Critical experience collaborating with cross-functional technical teams and external hardware vendors to validate performance benchmarks Minimum Requirements * Minimum Education: Bachelor's Degree in Electrical Engineering, Computer Science, Telecommunications, or a related technical field * Minimum Experience: 1-3 years of experience in mobile device testing or wireless technical verification * Required Technical Skills: Must have at least 1-3 years of experience with: * iOS and Android platforms, developer options, and ADB tools * Network protocol log capture and analysis tools (4G LTE / 5G NR) * Bug tracking systems (e.g., Jira) and test case execution Visa sponsorship not available for this role #LI-LM1
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