Hidaka Kikuchi - Backend Engineer | ContraWork by Hidaka Kikuchi
Hidaka Kikuchi

Hidaka Kikuchi

AI Automation Engineer & Cinematic Content Creator

Ready for work

Hidaka is ready for their next project!

Cover image for RAG Knowledge Base — PDF
RAG Knowledge Base — PDF + Cited AI Chat https://ai.kaisei-global.com/rag Upload PDFs → members ask questions → AI answers with source citations. Stack: Next.js, Supabase pgvector, Gemini. Live demo.
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Cover image for Next.js Marketplace & Catalog MVP
Next.js Marketplace & Catalog MVP — Live Production Site Production luxury multi-vertical catalog I solo-built and maintain: listing grid, detail pages, inquiry/lead capture, and a Python data pipeline into Supabase. Stack: Next.js, Supabase, Vercel. Live site — not mockups. Same delivery model as my Contra service ($1,299 one-time MVP builds). https://www.kaisei-global.com
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Cover image for Native Japanese UI localization for
Native Japanese UI localization for SaaS and web apps — developer-ready JSON/CSV (next-intl, i18next), not Google Translate. Deliverables: natural JP copy, EN→JP glossary with tone notes, placeholder and string-length checks so UI does not break. ~1,500 strings per sprint · 2 revision rounds. Available on my Contra profile from $449.
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Cover image for Product Promo Short Videos —
Product Promo Short Videos — Reels & Shorts Vertical product promos for TikTok, Instagram Reels, and YouTube Shorts. • 15–30s · 1080×1920 (9:16) • Hook in the first 2 seconds · burned-in subtitles • Brand colors · royalty-free music · 2 revision rounds Sample edit for a luxury product reel — same style I deliver for SaaS and eCommerce clients. Available as a one-time project on my Contra profile ($299). https://youtube.com/shorts/92t-39n6c0k
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Cover image for Shipped Demon Gate — a
Shipped Demon Gate — a production-ready HTML5 canvas action game (vanilla JS, no engine). 🎮 Play: https://ship-project-kappa.vercel.app/demon-gate/ (https://ship-project-kappa.vercel.app/demon-gate/)📦 Source ($29): https://kaleidoscope00803.gumroad.com/l/fenoa 30 stages · boss fights · combo / parry / soul-absorb mechanics · procedural audio Built for the browser — embed on any static host or reskin for client demos. Open to custom versions + monthly retainer for updates. DM if you want a scoped quote.
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Cover image for Still copying data between tools
Still copying data between tools manually? I set up production AI workflows (Make, Zapier, n8n) — form → AI step → CRM/email/Slack → alerts. Error handling included, not a fragile one-off Zap. Live system I run: ai.kaisei-global.com (http://ai.kaisei-global.com) One-time setup from $499 · optional monthly care after launch. DM or book "AI Workflow Automation Setup" on my profile — tell me your stack and ideal flow.
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Cover image for Project Title: PROTOCOL AMORE -
Project Title: PROTOCOL AMORE - Episode 1 Role: Director / AI Prompt Engineer / Editor Tools: Gemini 3 Flash (Concept & Scripting), Veo (Video Generation), CapCut (Sound Design & Editing)
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Cover image for AI-powered cinematic short video created
AI-powered cinematic short video created for premium brand promotion. Dark, warm lighting and subtle motion are used to create an elegant and refined atmosphere.
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