portfolio-company

Portfolio × Company Fit Analyzer

When to Use / When Not to Use

Use when:

• Deciding where to apply without a specific JD in hand
• Wanting a fit score across multiple company types at once
• Needing honest feedback on where this portfolio would struggle

Not for:

• You have a specific job posting (use portfolio-jd)
• You want to rewrite portfolio sections (use portfolio-rewrite)
• You want overall feedback on portfolio quality (use portfolio-feedback)

Process

1. Characterize the portfolio — what type of engineer does it most clearly represent? what are the strongest and weakest signals?
2. Plan analysis across company types — identify which types are relevant; what each actually looks for vs. states
3. Score each company type — fit score (X/10) + green flags + red flags + one concrete improvement action
4. Name Top 2 fits and worst fits — where this portfolio is most and least competitive
5. Produce positioning suggestions — if the target isn't the natural fit, what 2-3 changes would move the needle?

Standalone Inputs

Provide: your portfolio (paste or describe key sections), and optionally any specific company names you're considering.

What Claude Does / What You Do

Claude	You
Characterizes your portfolio type (platform builder, product engineer, etc.)	Decides which companies to target
Scores fit across 5 company types with specific evidence	Validates fit signals with network contacts at target companies
Names Top 2 best-fit and worst-fit company types	Makes final application decisions
Recommends 2-3 portfolio changes to improve fit for a target type	Does the actual relationship building and applying

Related Skills

• ../portfolio-jd/SKILL.md — once you've chosen a target, do JD-specific gap analysis
• ../portfolio-rewrite/SKILL.md — improve weak sections after identifying positioning gaps
• ../portfolio-feedback/SKILL.md — overall assessment before company fit analysis

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Stage 1 — Characterize the Portfolio (Think Tool)

Before doing any company analysis, call think to build a clear profile of what this portfolio signals:

• What kind of engineer does this portfolio most clearly represent? (platform builder, product engineer, infrastructure specialist, generalist, etc.)
• What is the strongest signal in the portfolio? (scale experience, ownership, depth, breadth, communication quality?)
• What is the weakest or most ambiguous signal?
• What does this portfolio not say — and would a particular company care?

🧠 Fit note: Record the core portfolio profile here. Everything downstream depends on this read.

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Stage 2 — Company Type Framework (Sequential Thinking)

Call sequentialthinking to plan the analysis across company types. Think through:

• Which company categories are relevant for a 5+ year Korean backend engineer?
• What does each type actually look for vs. what they say they look for?
• Which types are this portfolio's natural fit vs. a stretch?

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Company Type Profiles

Evaluate fit against the following categories. Adjust which ones are included based on what the user asks — don't force irrelevant categories.

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대형 플랫폼 (네이버, 카카오, 라인, 쿠팡 등)

What they actually look for:

• System scale experience (millions of users, high QPS, distributed systems)
• Technical depth and ability to own complex infra decisions
• Evidence of working within large engineering organizations (process, code review culture, RFC/design doc experience)
• Stability and reliability focus

Green flags: specific scale numbers, distributed systems experience, performance optimization with before/after metrics Red flags: only small-scale projects, startup-style "we did everything" without depth, no system design evidence

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성장기 스타트업 (Series B–D, 50–300명)

What they actually look for:

• Ownership and initiative beyond assigned tasks
• Ability to make good-enough decisions fast
• Cross-functional collaboration, not just backend silo
• Evidence of building something from scratch or scaling it meaningfully

Green flags: founding engineer experience, greenfield architecture ownership, business impact language Red flags: only large-company execution work, no initiative signals, heavy process dependency

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핀테크 / 엔터프라이즈 (토스, 카카오뱅크, SI 계열 등)

What they actually look for:

• Reliability, compliance awareness, and risk management mindset
• Long-term system maintainability and documentation discipline
• Incident handling and operational maturity
• Consistent track record over flashy projects

Green flags: SLA/SLO experience, incident runbooks, security awareness, payment/financial system experience Red flags: hype-driven tech choices without rationale, no mention of operational concerns, short tenure on any project

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글로벌 테크 (Google, Meta, Amazon, Databricks 등 한국 오피스 또는 해외 지원)

What they actually look for:

• Algorithmic and systems thinking demonstrable beyond the portfolio
• Clear technical communication (design docs, proposals, cross-team alignment)
• Impact at scope (did work affect many users, many teams, or many systems?)
• Leadership even without title

Green flags: technical writing samples, cross-org impact, mentorship, open source contributions Red flags: no evidence of technical communication, individual-only work, no demonstration of scope beyond own team

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개발 도구 / 플랫폼 / 오픈소스 팀

What they actually look for:

• API and developer experience intuition
• Public technical communication (blog, talks, OSS contributions)
• Abstraction and interface design thinking
• Empathy for other engineers as users

Green flags: OSS contributions, technical blog, API design examples, developer tooling work Red flags: entirely internal product work, no public technical footprint, no developer-facing work experience

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Output Structure

Write in Korean. Use this structure:

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[이 포트폴리오의 핵심 신호] In 3–5 sentences: what kind of engineer does this portfolio most clearly represent? This sets the frame for everything below.

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[회사 유형별 핏 분석]

For each relevant company type:

[회사 유형명]

• 핏 점수: X/10
• 이 유형에서 강한 이유: [specific evidence from portfolio]
• 이 유형에서 약한 이유: [specific gap or mismatch]
• 지원 전 보완할 것: [one concrete action]

Insert 🧠 Fit note where the fit score required a non-obvious judgment call.

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[가장 잘 맞는 회사 유형 Top 2] Where this portfolio would be most competitive, and why.

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[피해야 할 회사 유형] Where this portfolio would likely struggle — not because the person is unqualified, but because the portfolio doesn't speak that company's language yet.

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[포트폴리오 포지셔닝 제안] If the candidate is targeting a specific company type that isn't their current best fit, what 2–3 changes to the portfolio would move the needle most?

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Rules

• Be honest about poor fits. It's more useful than false encouragement.
• Tie every fit judgment to something specific in the portfolio — not general impressions.
• If the user names a specific company, reason about that company's actual engineering culture, not just their reputation.
• Use think when a fit score is genuinely unclear — especially when portfolio strengths and company expectations only partially overlap.