Laykuan Loh Email & Phone Number

San Francisco, California, Us

San Francisco, California, Us

* Led a project developing a monitoring system for adverse conditions ("feared events") that impact GNSS accuracy. Used the scrum framework and Jira to breakdown the project into 2-week sprints.* Developed a tool to convert GNSS corrections from a newer industry standard (SSR) to an older one (OSR), allowing Swift to ensure the GNSS positioning accuracy of both were comparable. * Rebuilt a system introspection and visualization tool allowing it to be used with Swift's newer GNSS positioning engine.* Used outputs from the sensor fusion engine to optimize the ability of the GNSS positioning engine to detect outliers. * Performed root cause analysis and fixed several critical performance and/or software issues for upcoming releases.* Architected and developed a diagnostic tool to detect commonly occurring bugs in the GNSS positioning engine.* Rewrote a Python tool in C++ to interleave GNSS observations and data from other sensors, decreasing the runtime by 60% on average. * Overhauled the engineering onboarding documents based on feedback from new hires. Documented processes and procedures (e.g. using Kubernetes to deploy a test network) to improve onboarding for new engineers. * Performed technical interviews and revamped several standard questions to improve clarity. * Participated in the Culture Committee and Engineering Advisory Committee to solicit feedback in order to improve employee satisfaction. * Organized regular presentations of ongoing projects on the engineering team to increase knowledge sharing.

San Francisco, Ca, Us

Mixpanel is a product analytics platform that enables user behavior analytics for product, marketing, and data teams. I build the front-end of the core reporting and analysis product.Rewrote Funnels report APIs in pure Javascript (from Backbone) to accelerate development and added tests. This migration had to be done while ensuring that the thousands of weekly active users were not impacted by the change.Collaborator on the migration of the Funnels report to a single-page application.* Developed and implemented a staged rollout process when making the re-designed Funnels Report public.* Added lexicon tooltip support for event/people properties to enhance users' understanding of properties they are selecting.Features built:* Time-to-convert in funnels, which shows how long users take to move through a conversion funnel. See https://help.mixpanel.com/hc/en-us/articles/115004561926-Funnels-Deep-Dive#time-to-convert-chart* Group by cohorts, which allows an analyst to identify the characteristics of groups of users with an especially high or low conversion rate.* Filter by cohorts, which allows analysts to limit the users in a conversion funnel to a particular set of people with a specific characteristics. about 10000 funnels with multiple filters were created.* Exclusion steps, which allows analysts to exclude users who did a particular step in a conversion funnel. Thousands of funnels reports have been created.* Multiple property filters. Allows users to apply multiple filters to each event in a conversion funnel.

San Francisco, Ca, Us

Build time comparison for the line chart on the Insights report.Optimized the CSV download time for high-dimensional datasets.

San Francisco, Ca, Us

Take Action: Collaborated on the new scheduling page for recurring messages (https://help.mixpanel.com/hc/en-us/articles/360000162803-Recurring-Messages), which allows users to re-qualify for the same Message again after a set period of time.Cohorts: Updated the backend to return an accurate count of users in a cohort in a performant manner.Improved performance of a step in the notifications pipeline by decreasing the number of queries made to the database. Wrote a decorator to warn developers if the make a future change to the codebase that increases in the number of queries.

Pittsburgh, Pennsylvania, Us

Finding systematic ways to enhance the security of software. Past projects include verifying the implementation of a network protocol, finding efficient ways to log systems events, verifying the effectiveness of privacy tools, and flagging vulnerabilities in Java code. Some projects are described here: http://netdb.cis.upenn.edu/strands/index.html

Pittsburgh, Pennsylvania, Us

Gave recitations, held office hours, managed the course webpage, supervised students on projects, and graded homework for the graduate-level class 18-734: Foundations of Privacy

Pittsburgh, Pennsylvania, Us

Gave recitations, held office hours, and graded homework for the graduate-level class 18-631: Introduction to Information Security

Evanston, Il, Us

Enhanced usability of a tool for measuring seismic wave arrival times: Solicited user suggestions to enhance the usability of an open-source software tool developed in Python. Added those features to the user interface. Website: http://www.earth.northwestern.edu/~xlou/aimbat.html

Palo Alto, Us

Edfinity is an educational start-up that provides quality educational content for Mathematics teachers. I allocated and reviewed the content created by Edfinity's contractors.

San Francisco, California, Us

MathCrunch (now Yup Technologies) matches students seeking help with their Mathematics homework with qualified online tutors. Styled the company website with CSS and used JavaScript to enhance the user experience. Wrote QA tests to verify that the code behaved as expected.

Stanford, Ca, Us

Teaching assistant for an introduction Artificial Intelligence class for a high school students at a summer camp. Also supervised the students during their free time and chaperoned them on group outings.

Stanford, Ca, Us

Collated data on volcanic vents in the Cascades Region from multiple sources to assemble a multiparameter database. Sanity checked the assembled database by clustering vents and verifying that the centroids roughly correlated to major volcanic vents.

Master’S Degree, Electrical And Computer Engineering

Bachelor Of Science (B.S.), Mathematics