Kaito Kinjo
Software Engineer based in Kyoto
Frontend, Maps
I am a software engineer specializing in web and geospatial application development.
I started my career building enterprise software and developing a web map platform for geospatial analysis. Following that, I worked on 3D map maintenance for self-driving cars, developing navigation applications with Mapbox.
Currently, I’m focused on frontend architecture at ROMS, developing automated warehouse dashboards and retail apps using React, Next.js, React Router and Expo.
Work Experience
2025 — Now
Senior Frontend Engineer at ROMS
Tokyo(Remote)
Building a centralized authentication infrastructure for multiple web applications, ensuring a secure and consistent user experience across them and related APIs.
Developing front-end architecture with schema-based gRPC communication, domain-driven design, and migrating from Remix to React Router v7.
React, Next.js, Node.js, TypeScript, React Native, Expo, Remix, React Router
2023 — 2024
Platform Engineer at ROMS
Tokyo(Remote)
Developed an automated warehouse management dashboard using Next.js.
Integration project to renew existing dashboards, adoption of Next.js App router with RSC support, migration from SPA with GraphQL.
Design and implementation of authentication and authorization features for multi-tenancy.
Created a KIOSK app for small unmanned shops and developed a Picking Android app for retailers by Expo, managing over 100 client devices with Android Management API.
Adopting schema-based and test-driven development.
React, Next.js, Node.js, TypeScript, React Native, Expo, Remix
2018 — 2023
Lead Engineer at yodayoda
Kyoto
Developed 3D map maintenance service for self-driving cars, product design, data pipeline development.
Experienced project management of global teams of researchers and engineers.
Design and development of a drive recorder and navigation applications using Swift and the Mapbox Navigation SDK, including user testing conducted in San Francisco, US.
Development of 3D visualisation tools using three.js, automated driving simulation of 3D maps using Autoware, pose estimation and 3D creation from lidar scan using Cartographer SLAM.
Selected by Alchemist X as BtoB startups in 2021.
React, Gatsby, TypeScript, Swift, Python, Ruby, PostgreSQL, Firebase, Mapbox, QGIS
2015 — 2018
Software Engineer at Nightley
Tokyo
Developed geospatial analysis web application.(inbound insight)
Manage large-scale data analysis platform, estimation of tourists' nationality and place of stay from SNS data. Collaboration project with the CSIS(Center for Spatial Information Science) of Tokyo University.
Developed a web application from scratch in one month. Within three months we got 1,000 enterprise users.
Visualisation of statistics data on maps using Mapbox GL JS, integration of client data and own location data.
Front-end developping for managing complex map states using Vue.js, Vuex.
Vue.js, Vuex, PHP, Laravel, Python, Redis, PostgreSQL, PostGIS, MySQL, Mapbox
2013 — 2015
Software Engineer, Project Manager at Station P
Okinawa
Enterprise software development with NEC.
Project management of a system for building a manufacturing management system for a space operator s satellite development.
Java, C#, PHP, JS, Oracle, PostgreSQL
Grateful for the beautiful design by Read.cv Team.