1. Penglun Li
3001 S King Drive Apt 217, Chicago, IL, 60616
TEL: 312-532-6289 Email: pli17@hawk.iit.edu
Summary
 Experience in Design validation testing Engineer in Motorola Mobility performing manual
and automation testing procedures to ensure that errors and bugs are identified and corrected
before release.
 Proficient in preparing test cases according to requirement document, bugs tracking and
reporting.
 Proficient in problem solving and analyzing.
 Solid skills in C, C++, python and java, matlab, strong background in embedded system
design, control.
 Strong programming skills with 4 years programming experience.
 Self-motivated, firmed and capable of working with multiple projects and teams, and
learning any software products and related technologies.
Education
 Master: Electrical and Computer Engineering Sep, 2012 － Aug, 2014
Illinois Institute of Technology — Chicago, IL, USA
 Bachelor of Science: Electrical Engineering Sep, 2007 －May, 2011
Henan Polytechnic University — Jiaozuo, Henan, China
Skills
 Strong ability with Assembly Language, C, C++, python, matlab, Java.
 Socket, I2C protocol, IPC, SPI.
 Development on Windows, Linux, ARM, and bare metal programming.
 Using tools like Matlab, Microsoft visual studio, vim, Git, Keli uvision, AutoCAD, eclipse,
DXP.
Experiences
 Jan 2015 – Now (Motorola Mobility)
Design validation testing Engineer: (Java, Python)
 Performing functional and signal(GSM, LTE, CDMA, GPS etc.) test on mobile phones
and watches.
 Set up and conduct tests under operational conditions to investigate design, or to obtain
data for development, standardization, quality control and problem resolution.
 Wrote test documentation to record the bugs and uploaded to database.
 Using Arduino Uno microcontroller board to test the susceptibility of cellphones design
to externally induced short circuit occurring on the charger input.
 Using Warthog board to test the robustness of response to momentary SIM card signal
disconnects while maintaining a radiated voice call.

2.  June 2014 – Aug 2014 (Illinois Institute of Technology): (C Programming Language)
ARM Cortex M3 Design and Control:
 Wrote code to accept analog input which can be changes by the knob on the aboard, and
converts it to digital signal using ADC converter then displays it on LEDs.
 Designed to control the LEDs on the board and displayed the value of duty cycle of
Pulse-Width Modulation (PWM) by the lightness of LEDs.
 Got the temperature using temperature senor TC74 and displayed it on LEDs, and I also
designed my own I2C protocol to communicate with the sensor.
 Aug 2013 – Dec 2013 (Illinois Institute of Technology): (Java, Socket)
P2P file system design:
 Using socket to design a Napster style P2P file sharing system, in with there is one
central indexing server and some peers.
 Designed a Gnutella style P2P file sharing system, in which each peer should be both a
server and a client.
 Jan 2013 – May 2013(Illinois Institute of Technology): (C Programming Language)
Minix3(Unix like kernel) design and implementation:
 Wrote my own shell in the minix3.
 Developed a set of IPC(inter process communication) system calls that allow an
application process to send messages to other application processes.
 Jan 2013 – May 2013(Illinois Institute of Technology): (C++ Programing Language)
A digital logic simulator design that is able to simulate nontrivial digital systems including
a CPU:
 With lexical analysis converted a sequence of characters into a sequence of tokens.
 By syntactic analysis, extracted the descriptions of the wires, the components, and their
interconnections in a circuit.
 Designed a data structure called netlist to represent the circuit for simulation and to
implement a program to actually construct the netlist from the descriptions of the circuit.
 Designed and implemented algorithms in simulator to simulate the corresponding circuit
which called logic simulation.
 Sep 2012 – Nov 2012(Illinois Institute of Technology): (Python)
Write a simulator to calculate the response time of different CPU process scheduling
algorithm:
 Simulated with the RR(Round-Robin) scheduling algorithm.
 Simulated with the MLFQ(Multilevel Feedback Queue) scheduling algorithm.
 The output criteria to compare these two algorithms are CPU utilization, Waiting time,
Turnaround time and Response Time.
Awards
 2009: Electronics Design Contest Third Prize
 2010: University Third Prize Scholarship
 2011: University Third Prize Scholarship