Larry Kang Email & Phone Number

Cupertino, California, Us

Why do I hack on projects in my spare time? Mainly to have fun and create cool stuff. But also to explore subjects that interest me and sharpen skills. Bitcoin Exchange / Bitcoin Library=========================A bitcoin/litecoin/USD exchange, written from scratch to learn about bitcoin. RoR 4.0, rspec, postgres, redis, resque, angularjs, coffeescript, jasmine. The bitcoin library (btc-ruby) supports basic and HD wallet address generation and supports single / multisig transactions.Access control server with iPhone app remote control========================================A raspberry pi running a simple node.js / express server controls a garage door or office building front door. An “opener” app is used to sends an “open” command selected by GPS. Swift, IB, CoreData, autolayout, iOS MapKit, CoreLocation librariesFaceFilter========iOS app which swaps facial images detected in a photo. Swift, IB, iOS CoreImage libraries.Older stuff: http://yaygi.jit.su/

Boston, Massachusetts, Us

Yesware provides email tools for salespeople. We created the Yesware app (a full email client) from the ground up. On the iOS app, I’ve worked on the basic email viewing and composition, attachments, notifications, settings, folders and the Yesware value added features of tracking events, templates, reminders, onboarding tips. Email client features use Obj-C, CoreData, autolayout, iOS libs, XCTest and KIF. I also setup our TeamCity CI build agent and server and create the testflight and appstore builds. I implement many of the backend servers to support client functions - email, attachments, apns notifications, contacts, tracking, using Ruby on Rails, rspec, redis, postgres, mongodb, resque, rabbitmq, AWS SNS, S3 and Heroku and was responsible for backend server deployments.

Attachments.me integrated Gmail attachments with cloud storage services - Dropbox, Box SkyDrive and Google Drive. You could find attachments, send them to the cloud, and share them from our browser extension or iphone app. I worked on all parts of our stack (js/RoR/python/mongo/aws/cloudAPIs) and added numerous features.Added rich UI features to our website using knockout.js (javascript)Integrated Google Drive, Skydrive, and Box cloud storage apis (ruby)Implemented backend functionality to our RoR servers and backend resque jobs (ruby)Added features to our Chrome Extension and Firefox extension (javascript)Added features to our backend IMAP crawlers and Rules crawlers (python)Ported to Rails 3.2 (from 2.x) and restructured assets to use assets pipelineDefinition and implementation of an event tracking mechanism (checkmate) which gives visibility into event processing or errors across our distributed system.Devops - troubleshooting, performance analysis, load analysis of backend systems, which consist of 80+ EC2 instances

CoTweet was a Social Media Management System for corporations. Primary platforms were Twitter and Facebook. I developed features and tests on all parts of the codebase. The stack was RoR 3.1 / memcache / postgresql with a rich JS/Jquery ajax UI. Duties also included deployment, systems configuration, and handling customer escalations when needed.Frontend and backend work on message retrieval and display and message state transitionsImplemented conversations viewImplemented RSS feed publishing to Twitter and FacebookScheduled automated message delivery to Twitter and FacebookAutomatic message tagging based on geo locationImplemented various reports (message volume, user engagement, etc). SQL query and optimization and data display Implemented offline large reports, email notification and CSV download through nginxVarious devops - nginx and monit config

Developed a facebook application based on the open source Insoshi rails project.Upgraded from rails 2.2 to 2.3.8, deployed from github to bluehost shared server, updated rspectest frameworks. Familiar with internals of actionpack stack and rails init/config. Utilized ruby,ajax, rjs templates, jquery, rdebug, firebug, git, sql, rspec, ubuntu, rake, html/css, apache, jsunpacker, numerous gems. Created and maintained Joomla websites for community / school groups. Created singlepage prototype websites. Joomla & Zencart internals, php, javascript, scriptaculous,dreamweaver

Financial Services Manager

Milpitas, California, Us

In charge of all software development activities for the CDSEM tool, which uses ascanning electron microscope to measure critical features in the semiconductor manufacturingprocess. Software subsystems included SEM control, signal and IP algorithms, robotics, vacuum,factory automation, jobs and recipes, database, web based data reporting, UI, diags. Responsiblefor technical direction, roadmap, local and offshore development, software quality and testing,personnel, budgeting. Personally solved key design issues in central image acquisition subsystem,dramatically increasing system reliability. Focused with a small technical team to develop hwand sw for next generation SEM. Worked directly with key customers on softwarerequests/issues, pre and post sales.

Milpitas, California, Us

Responsible for all aspects of software related to test floor applications. New product dev,roadmap, development, quality, personnel. Products included parametric database application(Discovery), memory test data viewing (BitPower), Test floor integration (CIMA).

Milpitas, California, Us

Designed software product to control semiconductor testers and probers, then re-OOA/D'ed and implemented in C++. Runs on Solaris/HpUX platforms. Productized to workwith all major probers and testers. The software became a standard at Motorola and AnalogDevices test floors.

Milpitas, California, Us

Board level firmware, hardware diagnostics, GPU (TMS34010) driver and primitivesoftware. VxWorks and basic device drivers ported to dual 680x0 image processing board.Designed & coded real time wafer map UI.

Firmware for hardware devices including touch screen, card reader, sonar, NVram,printer. Disassembled and ported a Z80 (zsid) debugger to the platform. Device drivers andprimitives for GPU, implementing graphics overlay on video. Device drivers for video discplayers. C and Z80 asm.

Salt Lake City, Ut, Us

Implemented control and algorithm software for a prototype hand reader system in C.Maintained Z80 embedded firmware for security systems.

Z80 keyboard synthesizer, ported OS and added product specific features.