Alex Yoon Email and Phone Number

Expert in Android Communication Solutions such as Messaging, Video and Voice callsEnabling OEM and carrier partners with the cutting edge communication featuresConsulting internal and external stakeholders and driving decisions based on data analysis

* Define the quality-of-service KPIs for T-Mobile’s cellular connectivity services and create the technical requirements for crowd sourcing diagnostics data from millions of mobile devices to calculate the KPIs* Lead and mentor a team of 8 data analysts to build the automated KPI calculation logics and the aggregated analytics insights and visualizations based on the big data* Manage the OEMs to implement the diagnostics reporting requirements and incentivize them by providing the insights to help address pre- and post-production issues* Collaborate with the data engineering team to architect the data analytics platform to process the crowd sourced big data for near real-time insight delivery* Drive decision by presenting the analytics insights to the stakeholders including the executive leadershipAccomplishments- Published data diagnostics reporting requirements on 5G, EN-DC, advanced LTE data, WiFi and roaming connections and on VoNR, EPS FB, VoLTE and VoWiFi (Voice over WiFi) voice services- Analyzed the signal reception reported by the devices and created a nationwide map of the coverage for 5G and LTE by the RF band: hundreds of the network engineers use the map to track the true coverage experienced by the users- Analyzed the performance of the handover between LTE and WiFi on voice calls to find the root cause: cut the VoWiFi (voice over wifi) drop call rate in half on a major OEM affecting millions of users- Analyzed the WiFi beacon data to estimate the gain from deploying LAA (License Assisted Access): helped the C-level management team make the decision and won the Innovator of the Year award in 2017- Analyzed the utilization of legacy connectivity features to decide minimization of certification test requirements- Delivered over 40 new insights and 20 patents applied in the projects. 5 granted and 15 pending.

* Managed the carrier certification process for both HW and SW* Built the streamline process to prepare carrier certification lab entry for on-time device launch * Drove a new initiative to run the internal user test to detect user experience issues before the certification process* Led technical discussions on new feature development with the carrier and served as a liaison to the HQ engineering* Handled issue escalations to deliver the root cause analysis with mitigations for minimizing the impact on scheduled deliveryAccomplishments- Delivered on-time device approval on over 95% of the device models- Improved the carrier’s user test score over 30 percentage point by creating a new internal user test process for early detection of the SW issues to be addressed before the certification lab entry- Documented the certification lab entry preparation process with required lead time by the item with the guidance for the frequently failed or missed areas- Negotiated the scope of compliance on a wide range of features including LTE, RF OTA, battery, camera, video call, IMS, GPS and preloaded applications ultimately to achieve on-time approval

Responsible for creating the market requirement documents (MRDs) to translate demands from the market and persuaded the management to decide on the product plans. * Translated product requirement documents (PRDs) to the technical level to provide a clear understanding to engineers on what to build. * Actively worked with the program managers, QA and the engineers during the product development cycles for progress review and issue triage to make sure that the products were built as expected; created marketing materials for the sales team to highlight the unique selling points.* Received the Best Employee Award in 2007.

Shared partnership of Nextreaming as one of the founding members. Responsible for building a multimedia delivery platform from ideas and technologies to a final product. * Actively involved in many customer proposals in Asia and Europe achieving a number of deals with carriers including H3G in the UK, Singtel in Singapore, Telecom New Zealand, Pelephone in Israel and LG Telecom.

* Developed streaming and encoding software for mobile delivery based on 3GPP and 3GPP2 standards * Represented the company in 3GPP and 3GPP2 standardization meetings and other activities

* Developed a billing system compliant to the 3GPP2 standard using C++ and Oracle.