Image of Perry Z.

Perry Z.

Software Engineer II

Engineering Manager at Lyft, we're hiring (link below)!

Seattle, Washington, United States

Section title

Perry Z.'s Email Addresses & Phone Numbers

Perry Z.'s Work Experience

Twitter

Software Engineer II

July 2014 to Present

San Francisco Bay Area

Amazon

Software Development Engineer

April 2013 to July 2014

Greater Seattle Area

PayScale, Inc.

Software Development Engineer

September 2010 to April 2013

Perry Z.'s Education

Duke University

B.S Economics (B.S) and Computer Science (B.A)

2006 to 2010

University of Washington

Master's degree Computer Science 3.9/4.0

2013 to 2016

Perry Z.'s Professional Skills Radar Chart

Based on our findings, Perry Z. is ...

Purposeful
Troubleshooter
Analytical

What's on Perry Z.'s mind?

Based on our findings, Perry Z. is ...

56% Left Brained
44% Right Brained

Perry Z.'s Estimated Salary Range

About Perry Z.'s Current Company

Twitter

Twitter Revenue Group Analytics team. Working with distributed MapReduce platforms, including Cascading, Scalding, Storm, and Summingbird. Primarily focused on back-end big data streaming and real-time computation

Frequently Asked Questions about Perry Z.

What company does Perry Z. work for?

Perry Z. works for Twitter


What is Perry Z.'s role at Twitter?

Perry Z. is Software Engineer II


What is Perry Z.'s personal email address?

Perry Z.'s personal email address is p****[email protected]


What is Perry Z.'s business email address?

Perry Z.'s business email addresses are not available


What is Perry Z.'s Phone Number?

Perry Z.'s phone (206) ***-*277


What industry does Perry Z. work in?

Perry Z. works in the Computer Software industry.


About Perry Z.

📖 Summary

My name is Perry Zheng and I am a graduate of Duke University class of 2010. I graduated with majors in Economics (B.S) and Computer Science (A.B) and a minor in Mathematics. I am currently working as a Software Development Engineer at Amazon. Specifically I work in the traffic org, whose mission is to bring more traffic to Amazon via different channels. Previously I worked as a SDE at Payscale, Inc - the world's largest salary data provider. You could learn more about PayScale at www.payscale.com. I would be thrilled to learn more about fields related to new software frameworks and tools, open source projects, distributed computing, data mining, scalable software architecture, and (more of a hobby) mathematical finance. Becoming a software architect some day is one of the directions I am currently interested in taking. Specialties: Software development, scalable web applications Languages: Competent in Java, C# (along with ASP.NET framework), Python, MATLAB; proficient in C and C++; experience with HTML, CSS, PHP, and MySQLSoftware Engineer II @ Twitter Revenue Group Analytics team. Working with distributed MapReduce platforms, including Cascading, Scalding, Storm, and Summingbird. Primarily focused on back-end big data streaming and real-time computation From July 2014 to Present (1 year 6 months) San Francisco Bay AreaSoftware Development Engineer @ * Associates and data feeds team. Worked in a team of two to simplify an old, error-prone distributed cache system to using existing AWS-cloud based solutions such as S3 and DynamoDb. The old system was based on an eventually consistent ring of memory cache hosts. The project drastically improved operational load from 5 weekly severity tickets to zero during all of Q4. Gave a technical presentation to the traffic organization (60+ engineers). * Currently working on a traffic valuation system that utilizes MapReduce and machine learning to evaluate the value of an incoming click from an associate. From April 2013 to July 2014 (1 year 4 months) Greater Seattle AreaSoftware Development Engineer @ Building robust, scalable, and innovative web applications for Payscale - world's largest salary data provider. Involved in the design, architecture, and implementation of Payscale's consumer products. From September 2010 to April 2013 (2 years 8 months) Research Assistant to Emma Rasiel @ - Co-authored "Rebalancing, Conditional Value at Risk, and t-Copula in Asset Allocation" with Irvin Wang - Investigated use of rebalancing with fat tail distributions and optimizing with downside risk as consideration. - The paper received High Distinction from the Department of Economics, the highest honor that was awarded to 23 students among over 200 economics majors. From August 2009 to May 2010 (10 months) Research Assistant to Jun Yang @ - Independently developed a system with enhanced repository (ERS) functionalities, including XML/relational database mapping, data modeling features such as inheritance, automatically computed attributes, as well as an XML-powered UI that supports data modeling and object instantiation.  - Project will eventually evolve into ERS-MSI, which builds on top of ERS and provides types/templates for capturing experimental and computational workflows in biomedical research and will be used by the Duke University Hospital. - Created in Java a SSH transfer system that allowed download and upload of large files while retaining control to databases. From June 2009 to May 2010 (1 year) Teaching Assistant @ - Weekly classes for students preparing for national mathematical exams such as the American Mathematical Contest - Assisted in the AMC 10 and Introduction to Probability classes. Helped students understand course material, moderated class forum, and graded problem sets. From June 2009 to May 2010 (1 year) Undergraduate Teaching Assistant @ - Held weekly office hours for students to discuss programming projects and course content for Computer Science 6 - Graded programming assignments and attend weekly meetings with the professor From August 2009 to December 2009 (5 months) Project Leader @ - Co-leader of "Team Sentience" with Andrew First ­ worked with a team of 10 students to develop a system that helped locate and track residents in the Smart Home with accuracy. Cisco Innovation Award finalist for two consecutive years. From August 2008 to May 2009 (10 months) Research Assistant @ - Implemented and designed a statistical program that explores how migration rates affect speciation and extinction rates of species. Paper title: The Effect of Migration on Speciation and Extinction Rates: A Sample-based Approach - Bayesian approach by running Monte Carlo Markov Chain simulation on phylogenetic data. From May 2008 to May 2009 (1 year 1 month) Software Intern @ - Designed, implemented, and code specific functionalities for the startup company. - Improved the search engine by introducing facility/accessories search (such as Wi-Fi Access) for twelve top-ranked universities. From May 2008 to November 2008 (7 months) B.S, Economics (B.S) and Computer Science (B.A) @ Duke University From 2006 to 2010 Master's degree, Computer Science, 3.9/4.0 @ University of Washington From 2013 to 2016 Perry Z. is skilled in: C#, Ruby on Rails, ASP.NET, Python, C++, Software Development, HTML, PHP, Computer Science, Software Engineering, CSS, Agile Methodologies, Java, JavaScript, SQL


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In a nutshell

Perry Z.'s Personality Type

Introversion (I), Intuition (N), Thinking (T), Judging (J)

Average Tenure

1 year(s), 1 month(s)

Perry Z.'s Willingness to Change Jobs

Unlikely

Likely

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Perry Z.'s Social Media Links

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