About Me

Jaeeun (Jalen) Yang

Professional Summary
Senior Software Engineer with 14+ years across full-stack, computer vision, and real-time graphics. Now shipping production AI systems at Upfeat (AR/CV features, AI-orchestrated crawling pipelines, and full-stack services) building on a decade of R&D leadership at Samsung Electronics (5 US patents; innovations taken from concept to global launch). Strong in high-performance optimization and algorithm design, with a track record of shipping research into production.

Skills

  • Languages: Python, Kotlin, Java, C/C++, JavaScript/TypeScript
  • Mobile & Frontend: Android (Java, Kotlin, Native C++, Skia UI), iOS, React Native, React, RESTful API, GraphQL
  • Computer Vision & ML: OpenCV, TensorFlow, PyTorch, YOLO, 3D Pose Estimation, Gesture Recognition, ARKit BlendShapes, ARCore / ARKit
  • AI Systems & Orchestration: LLM-orchestrated pipelines, multi-container agent workflows, anti-detection headless browser automation (Camoufox), distributed / parallel data collection
  • DevOps & Infrastructure: AWS, Docker, Firebase, Elasticsearch, FFmpeg, Git, GitLab CI/CD, Jenkins, Perforce
  • Graphics & Simulation: OpenGL ES Renderer, Unreal Engine 4, Unity 3D, Custom Shaders (GLSL/HLSL), PBR Workflows, ROS2
  • Performance Tuning: GPU Profiling (Adreno, Mali, Google Debugger), Memory & Frame-rate Optimization

    Language : Korean(Native), English(Intermediate)

Experience

Upfeat Media Inc.

Software Engineer
November 2023 – Present

Product Engineering, Winnipeg, MB (Remote from Oakville, ON)

  • Grocery Store AR Application: Spearheaded the development of an AR-based grocery scanning application, implementing real-time computer vision with OpenCV and YOLO; ran object detection at 30 FPS and interpolated results to a smooth 60 FPS render for a fluid, low-latency AR experience within ARCore.
  • AI-Orchestrated Web-Crawling: Designed an AI-orchestrated web crawling system that coordinates 5 containers in parallel (fan-out/fan-in), delivering ~5× throughput over sequential collection and reliably serving ~100 users in production.
  • Full-Stack & Cloud Integration: Engineered a scalable backend using Firebase and Elasticsearch to handle complex search queries and automated cloud workflows, operated reliably in production for 2 years.
  • Admin Dashboard & Modernization: Architected an administrative dashboard and login system with React, serving ~100 active users and streamlining full-stack workflows to accelerate new service deployment through AI-driven automation.

Samsung Electronics

Staff Software Engineer / Lead Developer
February 2011 – April 2023

Project Leader & Lead Programmer | C-Lab (In-house Incubation), Seoul
Feb 2022 – Apr 2023

  • Fingeraction Project: Selected as Project Leader for a competitive in-house venture; managed the entire lifecycle from concept validation and team formation to technical execution.
  • 3D UI Automation: Architected a real-time finger gesture recognition pipeline that automated avatar animations and interactive 3D UI control within Unreal Engine.

Senior Software Developer | R&D Center – Samsung Research, Seoul
May 2019 – Jan 2022

  • Robot Simulation: Built a robot simulation environment inside Unreal Engine 4, integrating complex rigid-body physics, sensor arrays, and motion planning algorithms via ROS2.
  • AI Animation Patent: Engineered and patented an ML-based "Voice-to-Speech Animation" system utilizing ARKit BlendShapes for high-fidelity facial expressions.
  • Digital Human (CES 2022): Developed core integration frameworks linking Digital Humans with smart appliances and advanced robotics (Bot Handy, Bot i) for Samsung's "Future Home Experience" showcased at CES 2022.

Software Engineer | IT & Mobile Communications, Suwon
Feb 2011 – Apr 2019

  • AR Emoji Application (2018–2019): Developed an OpenGL ES-based GLTF renderer supporting PBR workflows and optimized asynchronous model loading pipelines. Created a high-precision body tracking module using BVH data and designed a cross-platform Unity plugin for third-party game engine integration.
  • Samsung VR & UFC Live (2017–2018): Architected a 4K cloud-stitching video pipeline using FFmpeg and AWS Docker, achieving low-latency, high-fidelity real-time streaming for 10K+ concurrent users. Engineered feature-tracking and 3D texture projection algorithms across XYZ axes to eliminate visual jitter.
  • VR Rendering Solutions (2016–2017): Ported and integrated SMI's Eye-Tracking solutions. Implemented stencil-based foveated rendering using custom GLSL/HLSL shaders, reducing GPU overhead by 30% and maintaining a stable 90 FPS.
  • OnCircle – Galaxy S6 Edge (2015–2016): Developed the Circle UI communicator for Galaxy S6 Edge, including various message types (AGIF, Emoticon, Touch and Drag) with animation UI.
  • Kids Mode in Galaxy (2014–2015): Developed the core 2D/3D framework for Kids Mode utilizing Unity. Managed life cycle of native applications for kids in Galaxy Store.
  • Galaxy Tablet & Flagship Apps (2011–2013): Managed 3rd party apps, maintained releases of Tablet products, developed Quick Panel and Video Player features.

Projects

Computer Vision / AR

Grocery Store AR Application

Nov 2023 – Present

Spearheaded the development of an AR-based grocery scanning application, implementing real-time computer vision with OpenCV and YOLO; ran object detection at 30 FPS and interpolated results to a smooth 60 …

AI Systems

AI-Orchestrated Web-Crawling

Nov 2023 – Present

Designed an AI-orchestrated web crawling system that coordinates 5 containers in parallel (fan-out/fan-in), delivering ~5× throughput over sequential collection and reliably serving ~100 users in production.

Project Leader

Fingeraction Project

Feb 2022 – Apr 2023

Selected as Project Leader for Samsung's competitive in-house venture (C-Lab); managed the entire lifecycle from concept validation and team formation to technical execution. Architected a real-time finger gesture recognition pipeline …

Simulation

Digital Human (CES 2022)

May 2019 – Jan 2022

Developed core integration frameworks linking Digital Humans with smart appliances and advanced robotics (Bot Handy, Bot i) for Samsung's "Future Home Experience" showcased at CES 2022. Engineered and patented an …

Simulation

Robot Simulation

May 2019 – Jan 2022

Built a robot simulation environment inside Unreal Engine 4, integrating complex rigid-body physics, sensor arrays, and motion planning algorithms via ROS2.

Graphics

AR Emoji Application

Feb 2018 – Apr 2019

Developed an OpenGL ES-based GLTF renderer supporting PBR (Physically Based Rendering) workflows and optimized asynchronous model loading pipelines. Created a high-precision body tracking module using BVH data and designed a …

Graphics

Samsung VR & UFC Live

Feb 2017 – Jan 2018

Architected a 4K cloud-stitching video pipeline using FFmpeg and AWS Docker, achieving low-latency, high-fidelity real-time streaming for 10K+ concurrent users. Engineered feature-tracking and 3D texture projection algorithms across XYZ axes …

Graphics

VR Rendering Solution

May 2016 – Jan 2017

Ported and integrated SMI's Eye-Tracking solutions. Implemented stencil-based foveated rendering using custom GLSL/HLSL shaders, reducing GPU overhead by 30% and maintaining a stable 90 FPS.

Android

OnCircle App (Galaxy S6 Edge)

May 2015 – Apr 2016

Developed flagship features for the Galaxy S series, including the OnCircle UI communicator for Galaxy S6 Edge.

Android

Kids Mode in Galaxy

May 2014 – Apr 2015

Developed the core 2D/3D framework for Kids Mode utilizing Unity.

Education

Korea Aerospace University

Bachelor of Science in Computer Science

2003 – 2011

Seoul, Republic of Korea

U.S. Patents

US Patent 12,450,809 Method and apparatus for providing interactive avatar services
US Patent 11,244,422 Image processing device and image processing method thereof
US Patent 11,189,071 Electronic device for providing avatar animation and method related to same
US Patent 10,650,596 Electronic device and method of providing VR image based on polyhedron
US Patent 10,331,208 Image output method and electronic device for supporting same

Certifications

Samsung S/W Certification – Professional Grade

Samsung Electronics

Certification validating algorithm problem solving, advanced data structures, and runtime optimization skills

Oracle Certified Java Programmer (OCJP)

Oracle

OPIC (English Speaking exam) – Intermediate 2