SaaS development services, end to end.
Kaiketsu Technology is a small product studio that designs, builds, publishes and operates SaaS and web applications. One team, one accountable partner, across the whole lifecycle.
The design, build, operate model
Most SaaS development services stop at handover. We don't. We stay accountable for the product after it ships — because the hardest, most valuable work usually starts there.
We pin down the problem, the smallest valuable product, and the metrics that will tell us if it's working.
Information architecture, interaction design and a visual language that fits the audience — not a template.
Typed, tested, full-stack engineering. Sensible defaults, clean data models, fast feedback loops.
Domains, deploys, analytics, SEO, legal pages and the boring infrastructure that makes launch day uneventful.
We run what we ship: uptime, support, iteration on real usage, and a roadmap that responds to evidence.
SaaS product development, with AI where it earns its place
We integrate AI into SaaS products the same way we integrate any other capability: behind a clear user need, with sensible fallbacks, evaluated against real outcomes. No demos that don't survive contact with users.
- SaaS product development for new founders and existing teams
- Web application engineering (React, TypeScript, server functions, edge runtimes)
- AI integration — chat, summarisation, structured generation, embeddings, RAG
- Authentication, billing, multi-tenant data models and role-based access
- Performance, accessibility and SEO baked in, not bolted on
- Long-term operations: monitoring, incident response, iterative improvement
Who we work with
Founders validating a first SaaS idea. Small teams who need a senior partner across design and engineering. Established companies launching a new product line who want one accountable studio, not a procurement chain.
How engagements work
We start with a paid discovery — a small, fixed-scope piece of work that produces a concrete plan and a vertical slice. From there we either build the product end to end, or hand over the plan. No long sales cycles, no opaque proposals.
Have a SaaS product in mind?
Tell us what you're trying to build. We'll reply with honest scope, trade-offs and a sensible next step — usually within a day or two.
Get in touch