Henry Yip Email & Phone Number

Toronto, Canada Area

Toronto, Canada Area

• Designed and developed mission critical, high performance, clustered IP Rating and Charging (IPRC) server software for prepaid and postpaid subscribers with includes session management, and rating engines, running on.
• Utilized the knowledge of Java, XML, Eclipse, Junit, Redknee Framework, Redknee XGen, Object Oriented Methodology, Design Pattern, and Multi-Threaded Programming.
• Implemented 3GPP DIAMETER stack and RADIUS communication call flows to the IPRC software.Completed the unit testing by using Junit.
• Added CORBA and SOAP interface to the IPRC software for subscriber provisioning and rate profile query.
• Provided third-line support to the deployment and technical support teams across multiple time zones (Americas, APAC, Middle East, etc.)
• Performed code reviews, debugged code, test plan reviews, worked with test team to execute entry criteria test cases, verify product features and investigate/resolve production issues.

Toronto, Canada Area

• Maintained, redesigned, and developed PC-based testing equipment control software, which are using in the semiconductor industry to detect defected memory modules and chips.
• Developed software by applying knowledge of C#, C++, MS.Net Framework, MS MFC, Object Oriented Methodology, Unified Modeling Language, Multi-threaded Programming, Relational Database Management System (RDMS), & SQL.
• Collaborated with clients and sale team to define requirements and specifications. Refined the project scope and features by performing mid-review with customers.
• Developed RDBMS to keep track of testing parameters and results. Allowed customers to generated different detail-level test report based on to the report criteria selections.
• Designed and implemented a reviewing results feature while test is still running. The feature received positive feedback from customer.
• Implemented watchdog feature for monitoring the communication status of control software and the testing equipment.

Toronto, Canada Area

• Led a team of 3-engineer through technical design and implementation of PC-based testing equipment control software, which is using in the semiconductor industry to detect defected memory modules and chips.
• Managed software development by applying the knowledge of C, C++, MS MFC, Object Oriented Methodology, Multi-Threaded, RDBMS, Paradox, SQL, Serial-Port, and USB communication.
• Designed the communication protocol for the communication process between the software and the testing equipment.
• Created simulator software to emulate communication responses of testing equipment. Speeded up the project development by 2-month.
• Performed troubleshooting and debugged code. Recreated scenarios, exam code and system log to investigate root cause of problem. Implemented and deployed bug fixes and enhancements.
• Worked on full life cycle from requirements to maintenance for 3-project.

Hong Kong

• System Engineer in GSM/PCS (WTAS) group. Responsible for providing emergency and specialized technical assistance service for GSM/PCS wireless customers.
• Conducted immediate investigation and recovery of system outages on Service Builder and Network Switching Subsystems.
• Followed up and analyzed outages issues, leading to final resolutions of the root cause of the problem.
• Interfaced with overseas design support group to investigate and resolve design issues.
• Worked with software installation group and production verification team to coordinate and perform software installation and verification.

Master, Computer Science

GPA: 3.417 (A = 4.0)

Bachelor Of Science, Computer Science And Engineering

Activities and Societies: Robert Leroy Scholarships - From Sophomore. Honor Roll - From Freshman to Senior. Tau Beta Pi Member.Cum Laude..