Evidence over slogans
Every module ties to diffs, tests, or decision records you can drop into real repositories.
About
Born from Kyoto study halls, tuned for distributed squads
Byteon Cloudx began as engineers annotating each other’s pull requests after meetups in Kita-ku. Today the same ritual powers remote cohorts across Japan, with mentors who still ship production fixes between teaching blocks.
Principles we defend
Mentors who still ship
Instructors rotate through client workshops so examples stay grounded in current stacks.
Honest scope
We say what is not included—no fake enterprise checklists that fall apart on day two.
Milestones
2019
Kyoto study circle
Engineers hosting weekend secure-code reading groups that became the first Byteon syllabus.
2022
Mentor reviews shipped
Introduced async mentor diffs with explicit kindness rubrics for distributed teams.
2025
Bilingual cohorts
Formalized JP market notes across OWASP, APPI, and procurement-friendly templates.
Team directory
Hover cards reveal focus areas—no stock headshots, only generated marks with warm palettes.
Haruna Sato
Lead instructor
Application security labs
Leo Andersson
Instructor
API threat modeling
Mika Fujiwara
Curriculum designer
Secure SDLC playbooks
Noah Clarke
Instructor
Applied cryptography
Priya Natarajan
Instructor
Kubernetes guardrails
Elias Hart
Mentor
Identity flows
Aya Morimoto
Mentor
ASVS reviews
Camille Rossi
Instructor
Incident response
Jonah Meyer
Curriculum designer
Developer experience gates
Sora Kim
Instructor
Privacy engineering
Mateo Silva
Mentor
JavaScript supply chain
Vivienne Okoro
Lead mentor
Advanced code review
Ren Kobayashi
Career coach
Portfolio storytelling
Ingrid van Dijk
Career coach
Interview loops
Tomoya Watanabe
Support lead
Cohort logistics
Fatima Rahman
Support specialist
Accessibility accommodations
Oscar Liang
Curriculum designer
Bilingual glossaries
Helena Costa
Instructor
Corporate workshops