K2K2 G.K.
Tokyo-based Software Studio

From building it to keeping it running.

K2 G.K. is a software studio that turns ideas into products people actually use — built around web applications, cloud infrastructure, and AI. Being a small team is the point: we own the work from design through to operations.

The stack we care about

TypeScriptReact / Next.jsCloud NativePostgreSQLLLM / AI

Services

What we do

From framing the problem to shipping and running it — we stay with a product across its whole lifecycle.

Product Development

Starting from your business goals, we design and build web and mobile applications — from a fast MVP to a system built to scale.

  • Requirements & tech selection
  • UI/UX design and build
  • Agile delivery

Cloud & Infrastructure

We build scalable, secure cloud foundations. Codified, automated infrastructure keeps operations light while raising reliability.

  • Infrastructure as Code
  • CI/CD pipelines
  • Monitoring & observability

AI Integration

We bring AI — including large language models — into real products. We focus on what genuinely helps the work, not on the hype.

  • LLM solution design
  • RAG & search
  • Workflow automation

Technical Advisory

Tech selection, architecture reviews, team setup — we support your product from the engineering side, over the long run.

  • Architecture design
  • A healthy code-review culture
  • Process improvement

Products

Tools built on the Google Ads API

Beyond client work, we design, build, and operate our own purpose-built tools that solve specific operational problems.

Google Ads API

Advertising Reporting Tool

A tool that retrieves advertising performance data through the Google Ads API and automatically turns it into clear, well-structured reports — so the people responsible for advertising can understand performance at a glance. It is a dedicated tool we develop and operate for a specific client, and it is not offered as a public product.

  • Pulls delivery performance data via the Google Ads API
  • Aggregates metrics and formats them automatically
  • Generates easy-to-read reports on a regular cadence
Learn more

Approach

How we work

We value things that genuinely work and last over things that merely look impressive. A few principles guide us.

01

Small, fast, verified

Rather than pouring time into a grand plan, we ship something that works early and test it. We fold in feedback and move forward with confidence.

02

We think past launch

Release is a start, not a finish. We design for operability and maintenance from day one, so a product stays healthy for years.

03

Technical honesty

We choose technology to solve problems, not to chase trends. We share trade-offs openly so decisions are made with eyes wide open.

K2 at a glance

2025
Founded
100%
In-house delivery
Tokyo
Based in Shinjuku
Always learning

Turn your idea into a working product.

From early-stage ideas to improving an existing product — reach out and let's talk.

Contact us