balloon_head
balloon_head
balloon_head
balloon_head
one-person company. beyond the in-between.
Dante.Jeung

I am an enterprise application architect and cross-functional IT technologist, grounded in programming, systems engineering, enterprise solution design, business planning, financial-sector systems integration, and 10+ years of Japan-facing enterprise IT work. Throughout my professional career, I have worked across the boundaries where enterprise transformation becomes real: architecture, delivery, operations, and the people who must make the change work.

I believe there are always people at the far end of technology: the people who build it, fund it, operate it, depend on it, and live with its consequences. That belief has shaped the way I work. I am most useful where systems are complex, goals are still forming, and different groups need someone who can understand the whole picture without losing the human stakes.

Much of my career has lived beyond the in-between: between strategy and implementation, business and engineering, local teams and global stakeholders, plans and the messy reality of delivery. I have often served as a liaison, coordinator, troubleshooter, and bridge-builder, helping people and systems meet each other with less friction and more clarity. The in-between is exactly where I belong. In this new Renaissance, where the emergence of AI demands fusion across boundaries, I am convinced that the experience I have built by crossing those spaces between carries more power than ever.

There is also a technical romantic in me. I care about elegance, not as decoration, but as evidence that a problem has been understood deeply enough to become clear. The same enterprise transformation foundation now carries me toward data science, machine learning, and MLOps with the discipline I brought to complex enterprise systems. The throughline remains the same: I want technology to expand what people and organizations are actually able to do.

Mia torso portrait
How I Work
  1. Start with People and Context. I try to understand who is affected by the work, what they need, what they fear, and what constraints they are actually living with.
  2. Read Structure Before Acting. I do not rush to solutions. I look at dependencies, coupling, and leverage points, then trace visible symptoms back to the design, process, or communication issues behind them.
  3. Translate Across Worlds. I connect business goals to engineering realities, strategy to execution, and local context to global stakeholders without flattening the complexity.
  4. Move Fast Under Ambiguity. I do not wait for perfect clarity to begin. I frame the problem, create a workable path, and keep learning as the work becomes more concrete.
  5. Keep the Work Legible. I care about making complex things understandable, not only to specialists, but also to the people who must decide, operate, maintain, or trust them.
  6. Stay Reinventive. I carry the discipline of complex enterprise systems into new territory, keeping the work grounded while I learn forward.
Professional Experience

Setflux
Independent IT Architecture Consultant | 2020.08 - Present

Crosent
Architecture Consultant / Senior Manager | 2017.06 - 2020.07

MarkAny
Overseas Business and Solution Engineering / Senior Manager | 2016.05 - 2017.06

InnoRules
Overseas Business and Solution Engineering / Senior Manager | 2015.04 - 2015.11

Meritz Fire & Meritz Financial Group
IT Planning and Systems Engineering / Deputy General Manager | 2008.04 - 2015.03

TmaxSoft
Overseas Business and Systems Engineering / Manager | 2006.06 - 2008.03

Fujitsu Korea
Overseas Business and Systems Engineering / Manager | 2000.06 - 2006.05

Kwangju Computer
Web Programming Instructor | 1999.04 - 2000.05

Selected Projects

Shinhan Bank BPR 10+
Shinhan Bank | Application Architect | 2024.07 - 2025.03

Korea Deposit Insurance Corporation Digital New Deal IT Build
KDIC | Solution Architecture | 2023.08 - 2024.06

KB Life Post-Merger Finance Systems Integration
KB Life | Application Architect | 2022.04 - 2023.02

Shinhan Life Post-Merger Finance Systems Integration
Shinhan Life | Application Architect | 2020.01 - 2022.03

Orange Life IFRS17 ACE
Orange Life | Application Architect | 2018.08 - 2020.01

Samsung Fire Mobile Sales Management Modernization
Samsung SDS | Application Architect | 2018.02 - 2018.07

Rwanda Creative Economy Innovation Center
KOICA | IT Specialist | 2017.09 - 2018.01

CERT Modernization Feasibility Studies
NIPA | Proposal and Delivery Lead | 2016.06 - 2017.06

Sompo Japan Next-Generation Core RBMS
Sompo Japan | Proposal and Delivery Coordination | 2015.04 - 2015.11

Meritz Mobility, Collaboration, and Security Programs
Meritz Financial Group | Technical Architect, Project Lead, Service Planning Lead | 2010.05 - 2015.03

Mainframe Rehosting Programs
Meritz Fire, Nomura Research Institute, and Yamagiwa | Project Lead | 2006.07 - 2008.01

Technical skills
Java Spring Framework Perl Python FastAPI Uvicorn Lean PyTorch TensorFlow Keras scikit-learn Node.js nginx p5.js Paper.js Three.js PM2 Redis BullMQ Async.js YOLO ONNX LangChain LiteLLM llama.cpp Manim M5Stack Espressif / ESP32 Hailo Docker Kubernetes Jenkins n8n MLflow DVC Kubeflow Prometheus
Independent Projects for Fun and Real Life Independent Projects
for Fun and Real Life
https://watchpet.setflux.com/ WatchPet LIVE Built for my aging, mobility-impaired dog, with a young cat in the same home, WatchPet watches for early signs of trouble and sends Telegram alerts when human help may be needed. Around the clock, it analyzes frames from three indoor cameras, using HAILO HEF-compiled Ultralytics YOLO models for pet detection and tracking, YOLO26n dog-pose rendering, and a MobileNetV3-small CNN to classify failed get-up attempts. Trained quickly for immediate deployment, it is not a general-purpose pose system, but it meets the safety goal it was built for.
https://microgpt.setflux.com/ MicroGPT A JavaScript 3D simulation of Andrej Karpathy's microGPT training flow, showing live browser-side matrices, activations, gradients, and PyTorch weight updates over name records.
https://mnistnn.setflux.com/ MNISTNN A JavaScript 3D simulation of MNIST neural network training and evaluation, showing the full input pixel layer, hidden weights, bias values, activations, and labeled output confidence flow.
https://tinycnn.setflux.com/ TinyCNN A JavaScript 3D simulation of CNN training on MNIST, showing convolution scan windows, feature maps, max-pool routing, affine weights, output confidence, and drawn-digit evaluation.
https://tinycyclops.setflux.com/ TinyCyclops Small box, single eye, fast memory path: a Raspberry Pi 5 + HAILO (accelerator, NPU) OCR demo that stages image workloads, protects the accelerator, and streams detection and recognition progress to the browser.
/blipbeeper/ws BlipBeeper IDLE A 24/7 real-time FT4/FT8, WSPR monitor for shortwave bands, using Fast Fourier Transform (FFT)-based processing on raw RF IQ data from an Airspy HF+ Discovery to demodulate signals, decode messages, and stream decoded lines to the browser over WebSocket.
FT4/FT8
Waiting for stream...
WSPR — Tracking very weak signals, so long quiet stretches are normal.
Waiting for WSPR stream...
https://tinysdr.setflux.com/ TinySDR LIVE An experimental, silent, lightweight Software Defined Radio (SDR) for studying RF IQ demodulation and decoding. It builds a shared-memory pool from an Airspy HF+ Discovery USB receiver, lets multiple processes attach through a common adapter, and renders FFT rows as a real-time waterfall on canvas.
https://sdr.setflux.com/ BonoSDR LIVE
BonoSDR is a web-customized SDR built on GNU Radio. It supports multi-user receiver control and scheduled unattended reception and reporting, with background decoding for a range of shortwave protocols. It also lets me tune in to my hometown radio broadcasts while overseas and hear that familiar, nostalgic AM sound again.
https://fourier.setflux.com/ Discrete Fourier Transform(DFT) A Fourier-analysis playground for the engineer in me: radios, signals, curves, and all. It quantizes and samples line segments from SVG files, then analyzes their geometry through the Fourier transform. And you know what they say: the more, the better.
https://animata.setflux.com/ PandoraAnimata A sketch toward a future mechatronic painting project. Elegance in simplicity, and as an engineer, how could I not love Bezier curves? It uses a biarc algorithm to place arbitrary Bezier curves along a single smooth, differentiable path.
https://rabbit.setflux.com/ Cursor Rabbit A testbed for the previously completed biarc-over-Bezier algorithm. Feed it an absurdly complex straight-line maze SVG, generate a smooth path, and let the cursor prove it is one single continuous line. Dash, hare. Run, rabbit!
https://particles.setflux.com/ 3D Particles A browser-native particle morph experiment built with Three.js, focused on ripples, surface transitions, and lightweight interactive motion across sphere, cube, plane, and, yes, Fourier-inspired forms again. https://yiching.setflux.com/ Yiching 易經 A browser version of the yarrow-stalk method 蓍草占 from the Yiching, the Book of Changes. Maybe it is not really about predicting the future, but about tricking yourself, in a good way, into seeing your own life from a little distance. https://dither.setflux.com/ Pattern Dither A browser-based shader art tool for turning uploaded images into patterned dithering studies, with adjustable line density, brightness thresholds, and exportable layered outputs.
PSK Report

Dear amateur radio friends around the world, this PSK reception report from my station is for you. It aggregates FT4/FT8 reception data in near-real time, updated hourly, and plots the results on a world map.

PSK Reporter map for DANTEKR