Atlas-grade rigor

Collective without vaporware promises

We publish change logs when rack firmware shifts, when Iceberg RFCs alter labs, and when employer-authored rubrics tighten. The outline aesthetic mirrors how we teach: edges first, fills only after evidence.

Instructor portrait with neutral background and soft rim light

Lead Instructor

Haneul Byeon

Structured streaming + checkpoint forensics

Former lakehouse reliability lead; publishes Spark listener recipes used in APAC telco batches.

Curriculum Designer

Minseo Kwon

Competency rubrics + lab sequencing

Maps each sprint to measurable cluster outcomes so learners know why a lab exists before opening the notebook.

Advisor in blazer seated against textured wall

Program Advisor

Ravi Menon

Stakeholder expectation calibration

Aligns cohort scope with enterprise batch windows; keeps scope honest when vendors oversell “one-click” fixes.

Coach portrait outdoors with shallow depth of field

Career Coach

Yuri Andersson

Portfolio reviews + mock panels

Helps engineers narrate Spark-heavy portfolios without inflating titles; mock interviews recorded for replay.

Engineer in hoodie looking at camera with workshop blur behind

Platform Engineer

Tomás Ibarra

Cluster hygiene + cost caps

Maintains the shared K8s lab; patches node pools between cohorts so learners inherit realistic drift.

Facilitator with glasses and folded arms in classroom light

Lab Facilitator

Eun-bi Song

Live debugging rituals

Keeps office hours grounded in stack traces, not slides; triages notebook env mismatches within one sprint.

Research Liaison

Noor Haddad

Upstream signal filtering

Imports fresh Iceberg RFC discussions into optional reading tracks without turning class into a mailing list recap.

Operations Lead

Kenji Morita

Logistics + vendor calendars

Schedules rack time, VPN rotations, and guest speaker slots so Hwaseong logistics never become a student problem.

Principles

Traceable claims

Every performance story ties back to a query plan, metric capture, or reproducible notebook cell.

Shared failure budgets

We rehearse rollback paths and partial replays so “it worked on my cluster” is not the graduation bar.

Readable time investment

Sprints publish expected hours upfront, including optional deep dives that can be deferred.

Hwaseong-grounded logistics

Office hours rotate across KST-friendly windows; remote labs mirror the rack topology we document.

Milestones

2019

Spark clinic pilots

Invited cohorts from two manufacturers to stress streaming joins on identical hardware footprints.
2022

Lakehouse governance track

Added Iceberg + Delta modules after learners asked for catalog-level review packets.
2025

Hybrid rack access

Opened reserved slots on Hwaseong racks for blended teams needing tactile cable tracing.