Graph-first reading
Learn to prioritize edges that matter — retries, cold starts, and cross-region hops — instead of drowning in every span.
Korea-born · English-taught
We train engineers to treat dependency traces as a living map — not a wall of spans — so latency stories become readable before incidents escalate.
Explore the flagship courseFeatured program
A six-module path through application analytics for microservice dependency tracing — from sampling choices to explaining fan-out to product partners.
You leave with a repeatable review ritual for critical paths, not a pile of dashboard screenshots.
View curriculumWhy teams stay
Pastel visuals, serious craft. Our studio style keeps learning approachable while the content stays production-grade.
Learn to prioritize edges that matter — retries, cold starts, and cross-region hops — instead of drowning in every span.
Give SRE, backend, and product the same language for dependency risk so reviews stop turning into translation sessions.
Weekly trace clinics and lightweight scorecards that fit Korean and remote hybrid calendars without ceremony bloat.
From the studio
“The Service Graph Observatory module on fan-out made our checkout path make sense for the first time. We still struggle with legacy SOAP edges, but at least we know where they sit.”
Minseo Park · Platform lead, Seoul fintech
“Short, calm sessions. I finally stopped treating sampling as a checkbox.”
Ara · Busan
Rated ★★★★☆ on our internal LMS — “Clear dependency maps; wishlist for more Kafka examples.” — client in logistics software
Reading room
How to narrate a slow request without blaming the loudest service.
Propagation headers, baggage, and the quiet failures between them.
Parallel calls look healthy until you measure the waiting edge.
Tell us about your mesh — we reply within two business days.
Talk with the studio