FOR TEAMS / DEVELOPMENT PARTNER

From the first conversation
to running it in production.

Whether it's an idea that isn't a spec yet or a system that has grown complicated, let's figure out what should be built together.

Clarifying product goals and constraints, choosing technology, implementing, and improving. Here are the areas I've worked in professionally and how we can get started.

How to reach me ↗
WHAT I CAN HELP WITH

Things I can help with.

Even if the shape of the service isn't decided, or the tech stack is dated — we start by laying out the problem.

01 / NEW PRODUCT

New products & MVPs

Shaping business hypotheses, choosing technology, prototyping, and building web and mobile apps.

02 / AI ENGINEERING

AI features & agent integration

Evaluating LLMs and AI agents, integrating them with existing apps, and implementing them in local environments.

03 / TECHNICAL DESIGN

Design, improvement & replacement

Diagnosing issues in existing systems, revisiting architecture, planning around technical debt, and hands-on implementation support.

SELECTED EXPERIENCE

Selected experience.

I describe my roles and leave out unverified metrics. See my public career history for details.

  1. 01
    Driving development of an AI character service 2023–2024

    Role: Led project management, technical design, and frontend development. Also helped coordinate with a technology partner on voice conversation.

    Outcome stated in public career history: developed and released on a tight schedule
  2. 02
    Rebuilding a stalled replacement project 2021–2022

    Role: Organized the roadmap and milestones, set up infrastructure, ran reviews, and built the development team structure.

    Outcome stated in public career history: delivered a previously postponed replacement and built an in-house team
  3. 03
    New business development for an e-commerce service 2013–2016

    Role: As an early engineer, worked on planning, design, implementation, and operations, including payments and hiring developers.

    Scope: Cross-functional engineering ownership during the early phase

Read my public career history (Japanese) ↗

HOW WE CAN START

A simple way to start.

This is a suggested process. Actual contracts and scope are adjusted to each engagement.

STEP 01

Listen

Share where things stand, what's in the way, and what you want to achieve.

STEP 02

Frame the issues

Clarify what needs validating, the technical constraints, and priorities.

STEP 03

Validate small

Confirm the approach through prototypes or technical research.

STEP 04

Build & improve

Implement the scope that fits the goal, then adjust based on feedback and operations.

COMMON QUESTIONS

Common questions.

Can I reach out before the requirements are defined?

Yes. This page is meant for conversations that include sorting out the problem before implementation. We can start from your goals, the current situation, and any constraints on your mind.

What technical areas do you cover?

Web apps, AI/LLMs, agent CLIs, local apps, backend design, and more. Whether my experience fits your project is something I'll judge once I hear the specifics.

What about cost, contract type, and availability?

I don't currently list fixed rates or availability. These are discussed based on what you have in mind.

CONTACT / START A CONVERSATION

Start by telling me where things stand.

It's fine if you haven't decided what to build. Reach out with the background, where you want to get to, and a rough timeline.

Contact me via my X profile ↗

* This is a temporary contact route. It will be replaced once an official inquiry form or public email is set up. This page does not send anything.