
Software & System Application Engineer with 3.5 years of experience in embedded firmware and software development for access control and smart lock systems. Specialized in end-to-end product development, validation, DevOps, and SDK delivery, with hands-on experience in Jenkins CI/CD, Python, C/C++, and Linux-based environments. Strong expertise in algorithm validation and system performance optimization. Demonstrated ability to collaborate across teams and support customers, driving improvements in product reliability and development efficiency.
Professional Experience
Biometric Firmware & System Development
Developed custom biometric firmware (palm vein / face recognition) deployed in customer projects and mass production
Designed complete enroll / verify workflows, improving system stability and recognition reliability
Delivered end-to-end solutions (Firmware + Host Tool) for access control and laptop applications
System Integration & Performance Optimization
Integrated image sensors (IR / ToF) into biometric systems and tuned AE/image quality parameters
Performed data-driven optimization to improve recognition accuracy and system performance
Established validation flows aligned with real-world scenarios and Microsoft specifications
Host Tool & Communication Development
Developed custom host tools (Python / CLI / GUI) supporting UART, SPI, and I2C
Enabled batch enrollment & verification automation, significantly improving testing efficiency
Enhanced debugging capability for faster issue identification and resolution
DevOps & Automation
Built Jenkins CI/CD pipelines integrating build, test, and deployment workflows
Developed automated test frameworks (scripts + tools), enabling early issue detection
Reduced manual testing effort by ~70% and shortened regression cycles
Customer Collaboration & SDK Delivery
Delivered customized SDKs (Firmware + Host API) for client integration
Developed demo tools to accelerate customer onboarding and product validation
Collaborated with clients to debug issues and accelerate product deployment
QA, Testing & Reliability Engineering
Designed test fixtures (Raspberry Pi-based) and automated validation workflows
Implemented power cycle, communication, and functional testing flows
Supported reliability and stress testing to ensure mass production readiness
Documentation & Technical Communication
Authored SDK guides, protocol specifications, test reports, and release notes
Improved cross-team communication across Firmware / Algorithm / QA / Clients
Key Impact
Delivered biometric firmware used in real customer production projects
Reduced testing workload by ~70% through automation
Built scalable system supporting large-scale enrollment & verification flows
Enabled multi-domain applications (Access Control / Laptop / Automotive Demo)
Key Contributions & Achievements:
Participated in the cloud server platform testing project, collaborating with both headquarters and local teams to verify functionality and platform stability to ensure product quality.
Cloud Server Testing (Software)
Test Automation
Linux Environment Operations
Hardware Testing (Router Products)
Test Case Development
Cross-Team Collaboration
C
C
Python3
QT Designer
Linux
Jenkins CI/CD Integration
Notion
Journal Publication