Marco Lee Email & Phone Number

Greater Chicago Area

Experienced Software Engineer with proven track record of delivering high quality software seeking opportunities where my background of Object-Oriented C++/Java development using UML with design patterns and Agile/Scrum methodologies will make the greatest difference.

Greater Chicago Area

Part of the new Vector trading platform teamResponsible for the Firm Interface Gateway and the Clearing System Interface functionalitiesAgile/TDD Java development using GIT for SCM, Maven for build and JUnit for UT with CI using Bamboo/JenkinFirm Interface Gateway- logging in valid users and sending them instrument and order data.- multithreaded concurrent design to allow simultaneous user access, leveraging executor, concurrent hashmap, and array blocking queue.- direct hazelcast client for realtime data update and retrival.- perform sql query via OracleDataSource connection for user order retrival.Clearing System Interface- convert internal trade message to FIXML format and send to OCC via IBM MQ for trade clearing.- Non-blocking TCP server using selector to receive trade message from internal clients.- perform message validation and FIXML format compliance verification to ensure no OCC rejection.- perform duplicate message filtering to ensure unique message delivery to OCC.- participated in OCC compliance testing.

Greater Chicago Area

Part of the Framework(middleware libraries) Team.C++ development using STL and Boost libraries on SDG OS(custom Linux OS)- fixes defects, stop memory leaks, and refactor existing code.- refactor the on-screen button panel code to utilize the modern video server while maintain compatibility with legacy game types.- investigated on the effort to refactor the existing mechanical button panel code to make it more user friendly and less error prone.

Arlington Heights, Il

Part of the Nokia Siemens Networks, LTE Small Cell Product Team.Responsible for the SON (Self Organizing Network) functionality.Embedded C++ development under VxWorks Linux(RTOS) running on Motorola LTE BCU3 hardware- convert L2/L3 messages between NSN Flexi C_Plane UEC application and the SCP AP DAN3400 modem- adopt Motorola Macro LTE SON functionality (CSON w/ 3 cells) for use on the small cell implementation (DSON w/ 12 pico cells)- Update PCI selection algorithm to support 12 pico cells- Update Tomcat Google Maps visualization tool to support the small cell platform.

Arlington Heights, Il

Part of the Motorola Networks CDMA Division Call Processing Team.Embedded C/C++ application development on MontaVista Linux, VxWorks, and Vertex OS(RTOS)- implemented various CDMA callprocessing applications. (IS95A/B, 1x/2000, and EVDO)- OOA/OOD (w/ design patterns) using UML w/ Rhapsody (auto code generation) and Tau G2 IDEs.- L2/L3 message conversion. Authoring interface documents.- Full SDLC using Waterfall, Agile, and Scrum methodologies.- Linux IPC development utilizing signals, shared memory, sockets, semaphore, and pthreads.- Convert handwritten C++ application into UML model based application with auto code generation using Rhapsody IDE.- Maintain Network Element Manager software. Network Manager Element is a Java J2EE server application with a MySQL database keeping track of all the network elements its managing. - Resolve semaphores deadlock issue due to nested callbacks.- Replace OpenSource DES library- Update Freescale uboot bootloader to work with new hardware Freescale P4080 processor.- Perform Unite Test(Cantata++/Rational RT), Component Test(Rational RT), and Regression Test on software components.- Support System Integration effort and Field/Customer found defects.- Participated in code inspections and use static analyses tools(Klocworks) to prevent fault injection.- Utilize Clearcase/Clearquest for source control, defect tracking, and code inspections.- Automate simple tasks with scripts using various languages such as csh/tcsh/bash, Perl, Python, and Expect/TCL.