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Startup

MVP development and technical advisory for startups

Ship an MVP in as little as 2 weeks; partner on investor narrative, product roadmap, and early-user acquisition.

Common pain points in this industry

  • Engineering hiring is delayed and product hypothesis validation stalls.
  • Without a CTO / technical lead, architectural decisions are stuck.
  • Seed / pre-seed budgets do not allow large development spend.

What we deliver

Rapid MVP development

MVPs deliverable in as little as 2 weeks on a Next.js + Prisma + PostgreSQL + Vercel standard stack. End-to-end from requirements through UI design, implementation, and launch.

AI pipeline integration

Embed bespoke AI features built with Claude / Gemini / Dify into the MVP. Reference: our own daily-running video generation pipeline.

Tech advisor / Fractional CTO

4-8 hours/week tech advisory: architecture review, hiring support, investor-deck tech narrative, and code reviews.

Engagement process

  1. 1. Idea sharpening + spec draft

    Duration: 1 week

    Start with a free 30-min call. Articulate the product hypothesis, target, and scope; draft an MVP spec within a week.

  2. 2. MVP prototype implementation

    Duration: 2-4 weeks

    Implement auth + 1-3 core features + admin panel on a Next.js + Prisma + Vercel standard stack. AI features (RAG, automation, etc.) can be built in at the same time.

  3. 3. User testing + iteration

    Duration: 1-2 months

    Collect feedback from early users (10-50) and re-rank feature priorities. Prepare pitch-ready metrics and screenshots for investors.

  4. 4. Series A scale design

    Duration: Ongoing (monthly contract)

    Design DB / infra / SLOs targeting 10k-100k MAU. Continue alongside as Fractional CTO.

Industry track record

Project Count

5+ (recruiting SaaS, B2B EC, voice AI SaaS programmer role, in-house product, others)

Delivery Range

MVP 2-4 weeks / Series A design 3-6 months

Tech Stack

Next.js / TypeScript / Prisma / PostgreSQL / Vercel / Hono / FastAPI / Claude / Gemini

  • Took an in-house AI news distribution pipeline from MVP to daily production in ~1 month
  • B2B EC: 4-6 feature releases per month with zero-downtime rollouts
  • Recruiting SaaS: +40% match accuracy

Compliance checklist

  • APPI — basic Privacy Policy in place from seed stage
  • Terms of Service template — customized by industry (B2B / B2C / SaaS)
  • Stripe / payment-gateway KYC and anti-social-forces check
  • GDPR readiness — DPA execution if accepting EU users
  • Pre-IPO security requirements (initial design considering J-SOX / audit readiness)
  • AI usage policy — explicit handling of training data and output liability

Note: this checklist captures common items for the industry. Engagement-specific requirements are agreed in contract. See also our Security page.

Typical projects

  • Rapid MVP development (2-4 weeks / from JPY 1.2M)
  • AI feature integration (2 weeks / from JPY 800k)
  • Tech advisor contract (from JPY 300k/month / 4-8h/week)

Pricing guide: From JPY 800k / discount plan available for seed-stage teams

Talk to us about Startup Launch

The first hearing and estimate are free of charge. Feel free to reach out even before your requirements are finalized.

Book a free consultation