Rainpulse LLC / Independent technology consulting firm
AI and software, carried through to implementation.
- •Representative with 11+ years of hands-on experience
- •Representative's CTO and tech lead experience
- •From concept through operation
Through technology consulting, AI adoption, and web application development, we connect management priorities with execution on the ground — from framing the problem through design, development, and operational improvement, with one team throughout.
We keep asking why a thing should be built, and refuse to compromise on how beautifully it is built. The two are not separated; they are settled inside one piece of work.
Where to start
Problems you can bring to us
We have in mind organizations whose product direction is not yet settled, and who lack someone they can entrust technical decisions to.
You want to adopt AI but cannot decide which processes it applies to.
AI adoption and implementation→A PoC works, but you cannot move it into production.
AI adoption and implementation→Technical decisions and development priorities are not settling.
Technology and CTO advisory→You want requirements and development handled together.
System and product development→Services
Three areas of support
AI adoption and implementation
Embedding generative AI, RAG, and agents into real business workflows.
Technology and CTO advisory
Technical audit, architecture, team structure, and investment decisions.
System and product development
Design, development, and operation, starting before requirements are fixed.
Engagements
Engagements
Our own development operations, listed separately from the representative's individual work before incorporation.
AI / Development
Running our own development with AI agents
Rainpulse (in-house) / Jul 2026 – Present
We use it every day in our own development. We have not yet measured improvements in lead time or review time.
Backend
Representative, before incorporation
Backend services for Layer 2 infrastructure
Infrastructure company / May – Jun 2025
Within a short engagement, the core backend services were designed, implemented, and handed over.
AI / Web
Representative, before incorporation
AI knowledge search and a healthcare AI platform
Healthcare company / Jan 2023 – Oct 2025
RAG-based internal knowledge search entered daily use, and optimisation of both frontend and backend of the platform was completed.
Why Rainpulse
How Rainpulse works
We derive technical requirements from business problems
We do not start from technology. We start from what is actually going wrong in the business, and derive requirements backwards from there.
The technical lead makes the key decisions directly
The principal design and implementation decisions are made by the technical lead, without a sales layer in between — nothing degrades in relay.
We go past the proposal into implementation and operation
Rather than handing the proposal to another firm, the same team implements and operates it. We stay accountable for the design we wrote.
Process
From first conversation to engagement
- 01
First conversation
We hear where things stand and what is going wrong. It does not need to be organised yet.
- 02
Assessment
We review the systems, the team, and the constraints, and determine what we can and cannot help with.
- 03
Proposal
We present scope, approach, duration, and how cost is structured.
- 04
Contract and NDA
We agree the contract form and sign an NDA where required.
- 05
Investigation and design
Before implementation, we measure the actual system and turn the findings into a design.
- 06
Implementation and review
We implement while sharing status and decisions at an agreed cadence.
- 07
Cutover and improvement
We hand over to operations and set up how improvement continues afterwards.
Team
The technical lead works on it directly
A two-person company: the representative partner holds technical responsibility, while the operating member handles engagement delivery and administration. External development partners join on larger engagements, but responsibility for design and technical decisions stays with us.
- Representative
- Shuji Iwata, Representative Partner
- Headcount
- 2
- Established
- May 2026
- Location
- Umeda, Kita-ku, Osaka
FAQ
Frequently asked questions
Can we talk to you before our requirements are settled?+
Yes — that is the stage we expect. Deciding what should be built is part of the engagement.
Can you handle system development as well as AI adoption?+
Yes. AI adoption, CTO advisory, and product development are not separate products — we combine them to fit the stage you are at.
Can you join our existing engineering team?+
Yes. We can work inside your existing team, taking part in design review and implementation.
Do you take on small technical questions?+
We do. One-off technical decisions, or a second opinion on an estimate, are both fine.
Can you sign an NDA?+
Yes, using either your template or ours.
Do external partners ever join a project?+
On larger engagements, external development partners may take part. Even then, responsibility for design and technical decisions stays with us.
It is fine to talk to us at the concept stage.
Before it is decided what should be built, we help work through the problem and the options together.