Practical DX Solutions for Field Leaders & SMBs

Built by an Engineer Who Knows the Field,
Tailored Systems ThatSolve Real Everyday Needs.

Frustrated with manual spreadsheets, labor shortages, and complex software?
With real-world experience as a restaurant manager and art fair director,
we build intuitive, lightweight tools tailored directly to your frontline operations.

Affordable Trial (From ¥30,000)
Casual Inquiries & Complete Hand-offs Welcome
End-to-End Delivery & Field Adoption

Turning Ideas into Intuitive Systems
That Truly Work on the Ground.

From logical system development to creative art events and cultural productions.

Shimashima Factory is a development partner that transforms your business vision and operational pain points into practical tools that your staff will genuinely love to use.

We handle everything from initial problem diagnosis and software design to hands-on onboarding. By embedding ourselves in your actual workflow, we create solutions that blend seamlessly into daily routines.

Without being constrained by standard templates, we value personal dialogue to craft flexible, colorful solutions—just like the diverse stripes ("shimashima") woven into our brand.

しましまファクトリー シンボルマーク

Are You Facing These Challenges
in Your Daily Operations?

Addressing real frontline needs: "We want to streamline our work, but don't know where to start."

Too Many Spreadsheets, Constant Fear of Errors

Too Many Spreadsheets, Constant Fear of Errors

Manual copy-pasting and messy version control lead to tedious double-checking, stealing time from core business.

Commercial Tools are Overly Complex

Commercial Tools are Overly Complex

Expensive SaaS software with endless features ends up abandoned because frontline staff find it overwhelming.

No One to Consult for Small Improvements

No One to Consult for Small Improvements

The issue is too small to hire a big IT vendor, yet no one in-house has tech expertise, leaving daily frustrations unresolved.

3 Reasons Why Clients
Choose Shimashima Factory

Valuing the pace and atmosphere of your daily work, we build systems that your frontline staff will naturally continue to use.

POINT 01

Born from Hands-on Trial & Error:
Practical Improvements that Truly Understand Your Field

Having tackled internal workflow improvements firsthand—constantly experimenting with "how can we make the team's day easier?"—I deeply understand frontline struggles and craft optimal, strain-free solutions tailored to real operations.

POINT 02

Start Small to Feel the Impact:
Flexible Development Scaled to Real Results

No need for massive initial budgets. We start by solving a single focused bottleneck (from ¥30,000). Once your team experiences tangible benefits, we can gradually expand the tool step by step.

POINT 03

Casual Dialogue from the Idea Stage:
Turning Vague Thoughts into Clear Solutions

Feel free to reach out with rough ideas like "Is it possible to do this?". No technical specs or preparations required. Through open, everyday conversations, we clarify your actual needs and shape them into practical tools.

Hiroshi Shimaoka
Hiroshi Shimaoka
Founder & CEO / Practical DX Engineer (34)
GUGA Generative AI Passport Certified MOS Certified Chief Electrical Eng. Exam Exemption Escape Games & Puzzles Deer Hunting (Licensed) Scuba Diving Karate & Kyudo

Combining Engineering Craftsmanship with
Hands-on Frontline Experience into One System.

After studying the fundamentals of electronic control and mechanical engineering at Nara National College of Technology and Toyohashi University of Technology, I immersed myself in real-world operations in food service and art fair management.

Managing day-to-day store operations, closing tasks, ticketing, and grant applications, I experienced firsthand the painful inefficiencies of daily workflows. Driven by the question "How can we make things easier for the team?", I repeatedly built lightweight tools through hands-on trial and error.

Moving beyond abstract theories, I focus on creating intuitive, practical tools that staff can naturally adopt without stress, making everyday work lighter. As a trusted partner, I am dedicated to crafting solutions that truly work on the ground.

Engineering Foundation
Technical Foundation from KOSEN & TUT

Systematically studied engineering fundamentals from hardware and control systems to software at Nara KOSEN (Electronic Control) and TUT (Mechanical Engineering). Holds Generative AI Passport, MOS certification and EE exam exemption.

Store & Field Operations
Store Management & Daily Operations

Experienced restaurant floor, kitchen, and store manager duties firsthand, deeply understanding staff rush hours and physical operational loads.

Practical Workflow DX
Practical DX & Workflow Optimization

Hands-on track record of building proprietary ticketing/invitation systems and streamlining grant workflows, directly solving field-level bottlenecks.

Rating 4.9 / Over 70 Projects Completed

Highly Rated on Coconala with Numerous 5-Star Reviews

"Attentive consultation and beyond-expected usability," "Kindly suggested solutions even though I had no IT background"—Discover real customer feedback and verified project delivery reviews.

View Reviews & Works on Coconala

Practical Solutions Built for Real Field Needs

Crafted with optimal tools—from React and Firebase to AppSheet and Generative AI—tailored to each team's scale and workflow.
*To protect client privacy and security, all mockups and data shown are illustrative.

AppSheet Mobile Expense & Receipt Tracker
Expense / Receipt Amount Status
Taxi Fare [Receipt Saved] ¥2,400 Approved
Office Supplies ¥3,200 Approved
Cloud Auto-Archive & Sheet Sync
AppSheet Workflow Automation

Field Expense & Receipt Scanning Suite on AppSheet

Snapping receipts with a smartphone instantly uploads files to the cloud and logs data into Google Sheets. Cost-effective operational tool tailored for small businesses.

Key Outcome
Drastically cut receipt manual data entry / Instant cloud sync
Art Fair Ticket Sales & QR Check-in Console
QR Verified
General Tickets 850 Sold Out
VIP Guests 142 / 200 Checked-in
PASS VIP Pass (Guest+1) OK
PASS General Ticket OK
Web Systems Field DX

Art Fair Ticket Sales, QR Check-In & Customer Management System

All-in-one management from web ticketing to exhibitor VIP passes and smartphone-based rapid QR check-in. Provided instant attendee analytics for efficient post-event outreach.

Key Outcome
Zero queue at reception / Instant visitor data analytics
POS Terminal & Auto Payroll Console
Today's Sales
¥186,400
Guests / Avg Comm.
32 guests / 25%
Table A (Cast A) ¥12,800
VIP Suite (Cast B) ¥24,000
Formula Protected Auto Payroll
Google Sheets Field DX

Bar & Dining POS Terminal with Commission, Attendance & Payroll

Automated complex order commission calculations and manual shift puzzles. Designed a tamper-proof spreadsheet structure paired with a dark-mode, one-hand POS interface.

Key Outcome
Reduced monthly payroll calculation from 1 day to minutes
Cross-Timezone Booking & Ticket Portal
Tokyo JST 14:00 ⇄ Jakarta WIB 12:00
Mon
Tue
Wed
Thu
Fri
10:00 Booked
11:00 Open
14:00 Booked
15:00 Open
17:00 Booked
Tickets Left: 3 / 4 Auto-Notified
Cloud Integration Workflow Automation

Global Scheduling & Booking System with Timezone Conversion

Eliminated missed meetings caused by time differences between Japan and overseas. Enabled one-tap self-booking, auto-instructor matching, and real-time ticket balance tracking.

Key Outcome
Zero scheduling friction / Rooted out timezone errors

Practical DX & Excel Knowledge

Tips for eliminating manual Excel tasks, AppSheet solutions, and AI automation.

COMING SOON Coming Soon: Next-Gen AI Automation for Google Workspace
COMING SOON 2026.09.06

Coming Soon: Next-Gen AI Automation for Google Workspace

We are currently preparing an in-depth practical guide on next-generation AI automation for Google Workspace. Stay tuned!

Google AI Connect Google Sheets with AI! Automate Email Reply Drafts with GAS
Google AI 2026.09.06

Connect Google Sheets with AI! Automate Email Reply Drafts with GAS

Tired of drafting replies to repetitive inquiries? Learn how to generate thoughtful draft emails in seconds using Google Sheets, Apps Script, and AI.

Official note

Practical Frontline DX Tips & Free Templates on note

Discover practical guides, Google Sheets & GAS automation tools, and real-world DX case studies.

Visit Our note

Flexible Plans Tailored to Your Needs & Budget

No need for costly, oversized systems from day one.
We start small with what impacts your operations most, adapting flexibly to your workflow and budget.

Targeted Automation & Fixes

Rapid troubleshooting and targeted automation for daily manual bottlenecks.

¥ 30k JPY~
Lead Time 2 Days - 1 Week
  • Automated Copy-Paste & Data Aggregation
  • Fast Repair for Broken Macros & Formulas
  • Health Check & Audit for Existing Tools
  • Same-Day Screen-Share Consultation
Get in Touch

End-to-End System Integration

Seamlessly connect all tools to eliminate manual data re-entry.

¥ 400k JPY~
Lead Time 3 - 4 Weeks
  • Seamless CRM, Accounting & Payment Gateway Sync
  • Automated Multi-Level Approval Workflows
  • Custom Client Portals & Web-Based Systems
  • Hands-on Onboarding Support & User Manuals
Get in Touch

Company Information

Company Name Shimashima Factory Co., Ltd.
Established April 2025
Representative Hiroshi Shimaoka, CEO
Capital 1.11 Million JPY
Location 2F Ginza Otake Residence, 1-22-11 Ginza, Chuo-ku, Tokyo, Japan 104-0061
Business Lines ・Planning, design, and development of workflow optimization applications (AppSheet / Web apps)
・Business process automation and custom tool development using Google Sheets & GAS
・Cloud integration, data infrastructure architecture, and API connectivity
・Frontline operational improvement and IT implementation consulting
・Planning and operational management for art fairs, exhibitions, and cultural events
Contact info@shimashima-factory.co.jp (or via contact form)

How We Work & FAQ

No need for rigid technical specs upfront. Feel free to talk to us at any initial idea stage.

STEP 01

Free Initial Chat (LINE/Form)

Share your current pain points and ideas. No technical jargon required.

STEP 02

Interactive Prototype & Quote

We create a live clickable prototype and clear, phased cost estimates.

STEP 03

Sign-off & Agile Development

Development starts only when you are 100% satisfied with the demo experience.

STEP 04

Delivery & Team Onboarding

We stay alongside your team with walkthrough sessions and fine-tuning until fully adopted.

Q. We do not have clear specifications yet. Can we still reach out? +
Absolutely! Whether it is vague frustration with spreadsheets or general inefficiency, we help organize your requirements from scratch.
Q. Can you troubleshoot or update tools created by other vendors? +
Yes, gladly. We specialize in diagnosing, refactoring, and maintaining existing spreadsheets, complex formulas, macros, and legacy systems.
Q. Can we work together remotely from outside Tokyo or abroad? +
Yes! We collaborate seamlessly with clients across Japan and overseas via Zoom, Google Meet, email, and LINE.

Tell us about your team's daily hurdles
and let's find the simplest fix.

Wondering if your manual process can be automated? Initial consultations and estimates are 100% free.

Or email us directly: info@shimashima-factory.co.jp