Brian Kim: Full-stack, from interface to infrastructure.

I'm Brian Kim, a full-stack developer building user interfaces, backend services, and the cloud infrastructure they run on.

Software Development Engineer I at AWS (EC2) · MS in Computer Science, NYU 2026

Previously: Apple (Software Stability Team) · Samsung Electronics (DKS, DS Kubernetes Service)

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Experience.

Engineering, collaboration, and teaching.

Amazon Web ServicesSoftware Development Engineer I (SDE I) · EC2 · SeattleOctober 2026–Present

AppleSoftware Engineer InternMay–August 2025

Migrated one of my team's major services: 60M+ entries from six Oracle databases into one PostgreSQL schema, and its web app from Ruby on Rails to Next.js.

60M+ entries migrated

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Samsung ElectronicsSoftware Engineer InternJune–August 2024

Built Kubernetes resource monitoring and automation, then extended the work into a resource-usage dashboard.

2,000 vCore CPU reclaimed
6,000 GiB memory reclaimed

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New York UniversityDatabases Teaching AssistantJanuary 2024–May 2025

Helped students connect relational databases to working applications through a lecture, weekly office hours, and feedback.

60+ students

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EdgeworthBox

Software Engineer InternJanuary–August 2023

Built a React RFP/RFQ form generator that cut processing time by 25%, and processed 2M+ procurement records on AWS.

25% reduction in processing time
2M+ procurement records processed

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Explore my experience

Selected work.

Systems, products, and the decisions behind them.

TradeAI

Same rules. Less stress.

Result: 1.6 Sharpe and 2.0 Sortino ratios (annualized), with an 8% max drawdown, in live equity trading since March 2026 (about seven months).
Why: Steadier results than my own trading: the same rules every trading day, without emotional decisions.

Explore TradeAI

Before
1. 01ManualI planned and traded by hand.
Build and validate
1. 02TrainLightGBM models on historical data.
2. 03BacktestThe strategy tested on past data.
3. 04Paper tradeReal market, no real money.
Live
1. 05AssistedTradeAI plans positions; I add my judgement and place the orders by hand.
2. 06AutomatedIt trades through Alpaca unless I veto it in Telegram.

Kubernetes on EC2

Built from the ground up.

Why: To learn Kubernetes from the ground up instead of relying on a managed EKS control plane, and to find out the real trade-offs.
Built: A kubeadm cluster on EC2 provisioned with Terraform, Jenkins pipelines to development and production, and an ALB with TLS and subdomain routing.

Explore Kubernetes on EC2

ProvisionTerraform · VPC · EC2
Bootstrapkubeadm · control plane + workers
Add-onsLoad balancer controller · DNS
DeliverJenkins pipelines
RouteALB · TLS · subdomains

Real-Time Market Analytics Pipeline

A path for every event.

Built: Kafka ingestion, Spark Structured Streaming over 1m, 5m, 15m and 60m windows, an S3 Parquet data lake and a FastAPI dashboard on AWS.
Key decision: Event-time windows with a 2-minute watermark, so late candles still land in the right window without unbounded state.

Explore Real-Time Market Analytics Pipeline

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A little more about me.

Outside of work, I enjoy cooking, trying new recipes, and spending time with my Basenji, Hodu.

Truffle pasta and scallops
Bulgogi cream perilla udon
Steak don
Pork rib gnocchi
Miyazaki wagyu steak
Okonomiyaki
Yukjeon (Korean pan-fried beef)
Tiramisu

More about me