# Zhen Y. > Staff Mobile Software Engineer at Credit Karma Location: San Francisco, California, United States Profile: https://flows.cv/zheny Possess expertise in development techniques for real time embedded systems and Object-Oriented Analysis/Design. Strong Knowledge of Wireless network, Secure Coding and software design procedure. Specialties: Language: Java, Objective C, C/C++ Platform: Android, iOS, Java VM, Windows, Linux Network: TCP/IP, Cellular, WLAN and LAN Protocols, Routing and Switching, Network Management, QOS Security: Cryptology, Authentication & Encryption, TLS/SSL, VPN, WPA, EAP Methods Machine Learning: Tensorflow and sklearn Debugging: Log analysis, Dump Analysis, Packet and Protocol Analysis, Performance tunning, Profiling, Concurrent Analysis Source Control Tool: GIT, Perforce, ClearCase, SVN ## Work Experience ### Staff Software Engineer @ Credit Karma Jan 2017 – Present Mobile engineer at Core Product (Dashboard/Credit/Accounts) ### Sr Software Engineer @ Twitter Jan 2013 – Jan 2017 Mobile application development Works on Android core, timeline, tweets, onboarding and Ad formats. ### Sr. Software Engineer @ StumbleUpon Jan 2012 – Jan 2013 Mobile application development ### Sr. Software Engineer @ Research In Motion Jan 2010 – Jan 2012 Mobile software development for Blackberry core networking ### Sr. Software Engineer @ Neusoft America Jan 2010 – Jan 2010 Android/Linux system and software development ### Sr. Software engineer @ Taproot Systems Jan 2003 – Jan 2010 Embedded software development to create the low-level infrastructure of real-time and embedded products Develop Embedded Mobile Analysis for Android, Windows Mobile and Symbian Develop CCX and WPA2 certified WLAN System for Windows Mobile used by Trimble. Develop 802.11 WLAN Security Subsystem on Symbian licensed to both Motorola and Sony Ericssion Develop CommP Telephony server (TSY) for Symbian OS, which is included the Symbian Companion Technology Program Develop 3GPP 27.010 compliant multiplexing Communication Server (CSY) component licensed to Symbian, Inc ### System Engineer @ Seimens Jan 2000 – Jan 2001 Providing support to China Mobile and China Unicom for expansion of their networks and service offerings in Shanghai and Jiansu Province ### Intern @ Microsoft Jan 2000 – Jan 2000 ## Education ### Master in Computer Engineering North Carolina State University ### MS in EE Shanghai Jiao Tong University ### BS in Elec Sc Nankai University ## Contact & Social - LinkedIn: https://linkedin.com/in/zhenyuan --- Source: https://flows.cv/zheny JSON Resume: https://flows.cv/zheny/resume.json Last updated: 2026-04-12