Reserved

Your Technical Partner Beyond the Code

AI made writing code easy. Turning it into software a business can rely on still takes judgment, integration, and accountability. As a technical partner, we help companies decide what to build, make it work in the real world, and ship products that generate revenue.

Organizations our work has supported
teamLabSEGAデジタル庁AkiyaAir
Who We Are

More than developers — your technical partner

Writing code has never been easier. Knowing what to build, making it work inside a real business, and standing behind it when it matters is what still separates a prototype from a product. That's where we come in. For startups, we turn early ideas — and AI-assisted prototypes — into structured, revenue-generating businesses. For established companies, we identify technical bottlenecks, harden systems, and create new opportunities for expansion. Working with clients across 5+ countries.

Claude Ando

Claude Ando

Founder

100+

Businesses Supported

$5M+

Revenue Generated for Clients

5+

Client Countries

Enterprise SaaS · Gaming · Digitalisation · PropTech · AI · EdTech

Services

How we add value

Whether you're starting from an idea, an AI-built prototype, or an existing product under strain, we bring the judgment and engineering to turn technical constraints into growth

01

Technical Consulting

Fractional technical leadership for teams without it. We cut technical debt and costs, and decide what's actually worth building — in weeks, not months

02

AI Integration

We ship AI in our own products — so we know what's worth building and how to make it work in yours. LLM features, agents, and RAG pipelines, live in weeks

03

Software Development

From idea or AI prototype to deployed product in 6–12 weeks. MVPs that validate fast and SaaS built to scale and last

04

Web & Digital Presence

A fast, high-ranking site and brand that turns visitors into paying customers — built for global markets

05

In-House Products

We don't just advise — we ship. GuestDossier, our hospitality SaaS, runs in production today, built from 100+ client engagements

Get in touch

Process

How We Work

01

Understand

1–2 days

Understanding your goals, challenges, and requirements through in-depth consultation

02

Audit & Strategy

3–5 days

A paid, fixed-price AI Readiness Audit: a concrete roadmap with clear milestones, scoped deliverables, and costs — yours to keep, whether you build with us or not

03

Development

4–8 weeks

Agile development with regular updates and continuous feedback integration

04

Launch & Support

Ongoing

Seamless deployment with ongoing maintenance and optimisation

Technologies we use

React

Next.js

TypeScript

React Native

Tailwind

Node.js

Python

MongoDB

AWS

GCP

Vercel

PostgreSQL

GraphQL

Redis

Docker

Claude

OpenAI

LangChain

Figma

Git

What Clients Say

Trusted by companies building at scale

The team at Reserved understood our vision and delivered a product that our users love. Their agile approach and attention to detail were exceptional.

Product DirectorGaming

Reserved delivered beyond our expectations. Their technical expertise and strategic thinking made them the perfect partner for our digital transformation.

CTOEnterprise

After struggling with a broken codebase from a previous vendor, Reserved rebuilt everything from the ground up in React. Our in-house team could finally understand and own the codebase. The result was night and day.

Executive DirectorWeb3 / Entertainment

Working with Claude was an amazing experience from start to finish. He was incredibly quick and efficient, and his strong eye for design brought everything to life even better than I expected. I had a clear vision of how I wanted the website to look and feel, and he made it exactly how I imagined it — I couldn't be happier with the result.

KonaMayfair

What impresses me most is the breadth of his capabilities — front-end, back-end, and design — making him a remarkably effective one-person workforce. He consistently delivers an exceptional volume of high-quality work. Without his expertise and dedication, the Akiya Air portal would not be where it is today.

YoshiAkiya Air

Insights

Latest Articles

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FAQ

Frequently asked questions

Everything you need to know about working with us. Can't find what you're looking for? Feel free to reach out.

We focus on the work that AI tools have made harder, not easier: integrating AI into real products, turning AI-built or stalled prototypes into production-grade software, and acting as the embedded technical partner for teams without senior engineering leadership. In practice that means AI integration, MVPs and SaaS platforms built to scale, and fractional technical consulting. We've delivered for clients across the UK, US, Singapore, Hong Kong, Japan, and beyond.

Project timelines vary based on scope and complexity. A simple MVP might take 6-8 weeks, while a full enterprise application could take 4-6 months. During our initial consultation, we'll provide a detailed timeline based on your specific requirements.

We lead with fixed-price, productized engagements rather than open-ended hourly billing. Most clients start with a paid AI Readiness Audit — a fixed-price engagement that delivers a concrete, buildable plan you own, whether or not you go on to build it with us. From there, integration and build work is quoted as a fixed-scope proposal, with most engagements falling between $10,000 and $100,000+ depending on scope. You'll know what you're paying before we start — no open-ended retainers required.

Yes, we offer comprehensive post-launch support including bug fixes, feature enhancements, security updates, and performance optimisation. We can set up monthly retainer agreements or provide support on an as-needed basis.

Absolutely. We frequently collaborate with in-house teams, either augmenting their capacity or bringing specialised expertise. We're flexible in our approach and can adapt to your existing workflows and tools.

Our core stack includes React, Next.js, TypeScript, Node.js, Python, and cloud platforms like AWS and GCP. We also build AI-powered products using OpenAI, Anthropic Claude, LangChain, and vector databases like Pinecone and pgvector. We're technology-agnostic and always choose the right tool for the job — including React Native for mobile.

Scope changes are normal — especially in fast-moving businesses. We use agile workflows with regular checkpoints, so we can adapt quickly without derailing timelines or budgets. We'll flag trade-offs early so you can make informed decisions.

Seriously. We sign NDAs before every engagement and all intellectual property belongs to you. We've worked with publicly listed companies and early-stage startups alike — discretion is non-negotiable.

We build for that outcome. Clean, documented code with proper handover processes. Our goal is to make you stronger, not dependent. Many clients transition to in-house teams using the foundations we built.

AI integration is the core of what we do. We've shipped LLM features, AI agents, and RAG pipelines in our own production products — which is why we know the difference between a demo that works once and something that survives real users. Using OpenAI, Anthropic Claude, LangChain, and related tooling, we make AI work inside real systems, not just in a notebook. Whether you need to add AI to an existing product or build an AI-native application from scratch, we scope it, build it, and stand behind it.

Yes — this is one of the most common ways clients come to us. Founders and teams prototype the first 80% themselves, then hit the wall: it won't integrate, won't scale, leaks secrets, or can't be debugged because no one fully understands the generated code. We take it from there and make it production-grade — clean architecture, proper testing, and documentation your team can own. You keep the momentum; we remove the risk.

Contact

Let's discuss your next growth

Whether you're launching a new product, fixing what's broken, or scaling to new markets — start by telling us where you are and where you want to go.

info@reserved-jp.com

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N&E BLD.6F, 1 Chome-12-4, Ginza, Chuo-ku, Tokyo, Japan

Selective engagements · now booking Q4 2026