Sam Lin Email & Phone Number

Taipei City, Taiwan

Fingerprint Production Qualification Testing for Biometric DevicesFingerprint Reader Testing (Single-Finger and Multi-Finger)Responsible for qualification testing of single-finger and multi-finger biometric fingerprint readers, as well as other biometric fingerprint devices, including projects with government clients.Test Planning and ExecutionLed the planning, execution, and management of various test projects, including functional tests, smoke tests, regression tests, and stress tests.Managed test case design and execution using TestRail or EXCEL for both functional and Native testing.Conducted tests on multiple platforms, including x86/x64 platforms running Windows and Linux (Ubuntu/RH/SLES), embedded systems like Raspberry Pi, as well as mobile platforms such as Android and iOS.Bug Tracking and ManagementManaged bug tracking and issue resolution using Jira and TFS (Team Foundation Server), ensuring efficient communication and tracking of test results and bug statuses.Automation Script DevelopmentDeveloped automation scripts using AutoIt for performing fake finger stress tests, installer tests, and biometric SDK argument tests.Designed and executed stress tests to evaluate the performance and reliability of biometric devices under simulated high-load conditions.

Certification Testing and Virtualization TestingCertification TestingConducted certification testing for Microsoft WHQL (Windows Hardware Quality Labs), DTM (Driver Test Manager), and WLK (Windows Logo Kit), collaborating with developers to resolve NDISTest failures and ensure compliance.Performed driver reliability testing, including stress tests, and ensured compatibility with ESX IOVP NIC, iBFT, and CIMPAT on ESXi 5.0/5.5/6.0.Virtualization TestingPerformed virtualization testing for Citrix XenServer and VMware ESX hypervisors, focusing on virtual machine (VM) testing and functionality.Functional testing for VM relocation, checkpoint and rollback operations, and vMotion migration via NFS share storage using vCenter and vSphere client.Virtual Machine OS test for Windows and Linux SLSE and RH and Cent OSLayer 2 Functional TestingConducted Layer 2 functional testing for VM networking, including testing for giga throughput using tools like Netperf and iPerf.Validated jumbo MTU, flow control, speed force restrictions, checksum offload for IPv4/IPv6, VLAN configurations, and Teaming.Driver and Firmware DebuggingCollaborated with developers for debugging analysis using FPGA boards with JTAG before the IC tape-out stage, ensuring proper functionality and resolving hardware-related issues.Automation Script DevelopmentDeveloped automation scripts for driver testing, BACS (Broadcom Advanced Control Suite), and card reader testing on Windows installer platforms using AutoIt.Created Linux automation scripts using Perl, Shell, Tcl/Tk, and Python for various test automation needs.

WLAN Main TestingWiFi IEEE 802.11a/b/g/n Throughput TestingConducted rate throughput testing for WiFi standards (IEEE 802.11a/b/g/n) using NetIQ Chariot.Outdoor Distance/Throughput TestingPerformed outdoor distance and throughput testing to evaluate wireless range and signal quality under real-world conditions.Channel Frequency and Throughput TestingTested channel frequency performance and measured throughput across different frequency bands.Association and Encryption TestingValidated wireless association and encryption methods for Open/Shared systems, WEP 64/128-bit, WPA with TKIP/AES, and WPA with TKIP/AES using RADIUS authentication.Beacon Interval, Power Save, and ESSID TestingConducted tests for beacon interval, power save modes, and ESSID (Extended Service Set Identifier) configurations.Captured wireless frames and analyzed them using Airopeek to check for frame integrity and performance.Service and Protocol TestingValidated various network services and protocols, including:IPsec/PPTP for VPN performance and security.DHCP service for dynamic IP address allocation.FTP service for file transfer performance.RADIUS PPPoE service for authentication and broadband access.SNTP for time synchronization.Tested both AdHoc and Infrastructure wireless network modes for performance and reliability.Certification TestingWHQL, DTM, and WLK CertificationConducted certification testing for Microsoft WHQL (Windows Hardware Quality Labs), DTM (Driver Test Manager), and WLK (Windows Logo Kit) to ensure compliance with industry standards.Worked closely with developers to resolve NDISTest failures specifically for 802.11 WLAN drivers.USB Compliance and Driver ReliabilityTested USB device compliance and driver reliability, including conducting stress tests, SleepStress, CommonScenario, and INF file testing to ensure robustness.Focused on identifying and resolving potential driver issues that may arise during prolonged use or specific usage scenarios

Firmware Development Testing and FAE ExperienceIPDSLAM/VoIP Central Office Equipment TestingResponsible for testing and performance verification of IPDSLAM and VoIP central office equipment.Participated in R&D testing and training at the Nortel GDNT Lab in Guangzhou, and conducted field trials for China Telecom in Changsha, Hunan, and China Tietong in Chongqing, Sichuan.Practical Testing AreasConducted testing on Copper/Fiber Optical Uplink protocols and technologies such as 802.1X, 1483B, PPPoE, ATM PVC, Trunking aggregation, VLAN, IGMP snooping, L2 & L3 forwarding, and more.Connected with ATM routers from Cisco, Huawei, ZTE, etc., and performed long-duration user internet connectivity tests.Utilized tools like Smartbits for additional functionality verification tests.VoIP System TestingPerformed VoIP product functionality testing in Japan with SoftBank's Yahoo BB and Japan Telecom, and collaborated with NOC centers on field trial tasks across various sites.Tested equipment including Cisco, UTStarcom ADM routers, and NEC switches.Extensive testing of VoIP protocols and functionalities, including V52 protocol, E1/T1 line protection, switchover, and redundancy.Validated various scenarios for V52 protocol, such as InterfaceID, V5 redundancy, LinkID, TimeSlot, and B-Channel.Audio Codec and PSTN TestingTested VoIP codecs, including G.711a-u, G.723, G.729, and validated PSTN Digimap.Conducted tests for user phone functionalities such as DTMF/Pulse Dialing, T.38 Fax, and validated SIP protocol's handling of DTMF IN/OUTband INFO/NTE processing.

Bachelor Of Science (Bs)

College, Electrical And Electronics Engineering