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Kakero/About
About

Built in Tokyo.
Run from Miami.

Kakero is a two-person studio for the work that has to ship now and survive afterward. We pair a senior engineer with a senior operator and stop there. No layers, no offshoring, no slow-down.

JP practice

Tokyo HQ

04:34 JST

Engineering, security audits, and the Japan practice. Mornings spent reading code, afternoons in production.

US practice

Miami

15:34 ET

Operations, scoping, and client relationships. Where the first call happens and the contract gets written.

Story

How we got here.

2014

First production system

Francisco ships his first commerce platform in Tokyo. Reads every CVE that ships against it for the next decade.

2018

Security practice

After three years of incident response, Francisco starts taking standalone security audits alongside engineering.

2022

Adrian joins

Adrian sets up the US practice. Scoping moves from "few weeks" to fixed-date, fixed-price.

2024

AI engineering

First eval-driven LLM build for a fintech. The pattern becomes a third practice area alongside security and modernization.

Now

Two markets, one team

Tokyo + Miami coverage. Two-person studio by choice. Booking through Q3 2026.

Who you're working with

Small by design. Senior by default.

Kakero is a two-person studio. You work directly with the people doing the work — the engineer reading your code and the operator scoping your project. No account managers, no juniors, no B-team.

Francisco Pena

Francisco Pena

Founder

Senior software engineer based in Tokyo, with a background in application security. Twelve years building and modernizing web platforms — and hardening the systems behind them. Leads every technical engagement — AI builds, modernization, security reviews — and runs Kakero's Japan practice. (kakero.jp).

Adrian Varillas

Adrian Varillas

Co-founder

Runs operations, sales, and client relationships. Turns the first conversation into a clear, fixed-price scope and keeps every engagement on track from kickoff to handoff. Leads Kakero's US practice. (kakero.ai).

Why "Kakero"
駆けろ — kakero. The Japanese imperative form of run. Said to someone who needs to move, now. We picked it because it's what every brief sounds like by the time it reaches us.
The founders

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