# Japan Dev (@japan-dev) on youtube

- id: koinon:creator:youtube_japan-dev
- url: https://koinonlink.com/kol/youtube/japan-dev
- schema_version: 1.4

## Identity
- platform: youtube
- handle: japan-dev
- platform_url: https://www.youtube.com/@japan-dev
- country: Japan
- entity_type: creator
- person_id: Cross-platform identity not resolved for this creator.

## Reach
- followers: 1890
- posts_observed: 1
- verified: false
- size_tier: nano

## Engagement
- status: not_collected
- status_note: Engagement has not been collected for this creator yet. This is a gap in our collection, NOT a statement that the creator has no engagement. Follower count is known, so it is measurable.
- unit_note: engagement_rate and peak_post_engagement_rate are ratios (0-1); avg_interactions_per_post and best_post_interactions are absolute counts. Read status before reading any number: a null rate has several different causes and status says which one applies here.

## Content
- category: software
- subcategory: devtools
- category_confidence: 0.75
- category_source: derived_from_recent_content
- topics: Relocating to Japan for tech jobs, Japanese tech hiring process, Language barriers for foreign tech workers, Career transition into Japan's tech industry, Visa and immigration challenges for foreign engineers, Success stories of foreigners building tech careers in Japan
- bio: Japan Dev – Land Your Dream Tech Job in Japan Japan Dev is a job board showcasing jobs in Japan — mostly for ...

## Audience (inferred)
- status: present
- description: International tech professionals, especially software engineers and designers, aiming to relocate to Japan for high-paying tech jobs
- roles: dev
- seniority: practitioner
- pain_points: Struggling with language barriers when moving to Japan, Facing difficulties in understanding Japanese company hiring processes and expectations, Worrying about visa challenges and long-term career stability in Japan, Feeling uncertain about whether they qualify for tech jobs in Japan without Japanese language skills
- posts_analysed: 19
- confidence: 0.6

## Commercial (inferred)
- audience_buyer_fit: 0.7
- promotion_intent: 0.5
- open_to_collaboration: false
- contact: Koinon does not publish creator contact details.

## Quality signals
- authenticity_score: 35
- authenticity_basis: profile_shape_only
- credibility_score: 35
- flagged_for_review: false
- koinon_bd_grade: C — measures Koinon partner-outreach fit, not creator quality
- interpretation: Signals for triage, not verdicts. A flag means the profile is worth a manual check.

## Evidence
- [youtube_japan-dev#304078e6] House Hunting in Japan: Language Barrier (https://www.youtube.com/@japan-dev)
- [youtube_japan-dev#04909b68] Vegetable stir-fry vs. pork stir-fry.
- [youtube_japan-dev#a4a99596] 3 Must-Know Interview Tips for Japan
- [youtube_japan-dev#5ab6d627] New to Japan? This Simple Tip Will Save You Time!
- [youtube_japan-dev#f9e66080] No One Tells You This About College & Coding Jobs
- [youtube_japan-dev#c02391d6] Before You Chase Dreams, Know Yourself
- [youtube_japan-dev#ac5aaeac] The Hardest Choice: Not the Country, But Knowing Yourself
- [youtube_japan-dev#50272307] The Harsh Truth About H1-B Visa Struggles

## Provenance
Every inferred field below carries how it was produced. Facts stay facts; inferences stay inferences.

- audience.description: source_type=ai_inferred, confidence=0.6, freshness_days=0, method=llm_persona_from_recent_content
- audience.roles: source_type=ai_inferred, confidence=0.6, freshness_days=0, method=llm_persona_from_recent_content
- audience.seniority: source_type=ai_inferred, confidence=0.6, freshness_days=0, method=llm_persona_from_recent_content
- commercial.audience_buyer_fit: source_type=ai_inferred, confidence=0.6, freshness_days=0, method=llm_scorer — Relative signal within Koinon indexing, not a market-wide score.
- commercial.promotion_intent: source_type=ai_inferred, confidence=0.6, freshness_days=0, method=llm_scorer
- quality.anomaly_flags: source_type=heuristic, confidence=0.5, freshness_days=0, method=profile_snapshot_and_engagement_ratio_heuristic — Means "worth a manual check", NOT confirmed fraud. Flags can be wrong and are not a verdict about the person.
- quality.authenticity_score: source_type=heuristic, confidence=0.25, freshness_days=0, method=Profile-shape heuristic from a single snapshot (follower count, following ratio, account age, posting volume, verification), reduced for engagement red flags where post engagement was collected. Where only a follower count is available the score saturates at 58. — The input set differs by platform; do not compare this score across platforms.
- quality.koinon_bd_grade: source_type=ai_inferred, confidence=0.5, freshness_days=0, method=llm_partner_fit_classifier + fit_score >= 0.6 AND authenticity >= 60 => A; fit_score >= 0.4 AND authenticity >= 45 => B; else C. authenticity < 30 or a promotional-pattern flag => quarantine. — Koinon partner-outreach fit, not creator quality.
- reach.followers: source_type=observed, confidence=0.95, freshness_days=0, method=platform_profile

## Freshness
- profile_checked_days_ago: 0
- content_analysed_days_ago: 0
- audience_updated_days_ago: 0

## AI retrieval
- indexing_requests: 1
- user_triggered_requests: 0
- note: Being indexed in bulk is not the same as being retrieved to answer a question.

## This profile
- Claim or correct: https://koinonlink.com/claim?k=youtube_japan-dev
- Request removal: https://koinonlink.com/claim?k=youtube_japan-dev
- Terms: https://koinonlink.com/for-ai