David Fang Email & Phone Number

San Jose, California, Us

New York, Ny, Us

1) worked in a team to implement new features of our toolkit library, an Excel Add-in application that provides risk calculations and pricing analytics for credit, rates, fixed income, equities, FX and commodities. Implemented new API that extends C# to Java. Implemented examples, such as IR Swap Curve and Bond Curve, etc., with the new API for demonstrations.2) developed a Pricing Expression Optimization (PEO) engine in C++ using LLVM compiler from scratch that generates IR code in the bottom layer of the toolkit library. Implemented the Abstract Syntax Tree (AST) for the pricing expressions and integrated with LLVM infrastructure.3) also worked on bug fixing tasks for team members.

http://qualgame.com1) developed and released the “BtEngineSDK” (Behavior Tree Engine SDK) for Unity game engine at Unity Asset Store, that provides a hierarchical-concurrent decision-making task solution using multi-threaded behavior trees for next-gen game AI1.a) developed the “Bt Studio”, an Qt application written in C++ that implements an efficient tree layout drawing algorithm and 2D GUI utilities to visually edit behavior trees’ structures and configurations, and import/export tree configurations from/to XML files1.b) developed the “Bt Unity Menu”, an embedded Unity Editor Menu utility written in C# to automatically generate node-game-objects with tree structure configurations and node-C#-scripts, and connect all node-C#-script components to their corresponding node-game-objects, as specified from XML files1.c) developed a thread-safe behavior tree data structure, and the most tricky component, Parallel Node, written in C++ that implements very complex synchronization mechanisms for hierarchical concurrency of multilevel Parallel Nodes1.d) developed the “Bt Engine Scripting API”, in which the backend dll is written in C++ that implements asynchronous callbacks to perform concurrent behavior tree operations; the frontend is written in C# that implements the API for clients to invoke in Unity engine, and that also manages to process sequential data transferred in between dll and Unity game objects using message queues and serialization/de-serialization techniques1.e) also developed a “Meta Behavior Tree“ library written with Boost.MPL library that uses “types” to define custom behavior tree configurations and builds the "type" of the tree configuration in compile time, which is similar to Boost.MetaStateMachine2) designed a high level architecture to host the behavior tree engine in AWS cloud

Boca Raton, Fl, Us

1) worked in a team to design and implement Augmented Reality applications on top of Unity engine with ARToolKitPlus tracking library for emergency medical procedures, such as tension pneumothorax, endotracheal intubation, cricothyrotomy, nasogastric tube insertion, and central line placement, etc., for military training and medical education purposes2) developed a scalable architecture of framework written in C# on top of Unity engine, which integrates AR applications with external tracking systems, speech recognition system, behavior tree system, and high-fidelity mannequin simulation systems3) developed a library of various scalable classes--engine response wrapper classes, system calibration classes, camera manipulation classes, virtual hand interaction classes, 3D utility classes, SQLite handler classes—written in C# for VR/AR applications

Worked in a team with software engineers and QA. Developed, tested and managed a mobile software application written in C++ with Qualcomm BREW SDK, which was used to scan 1D bar codes and 2D QR codes, decode images, connect to server and fetch data