Harley Busa, also known as Raijin, is a full stack software developer and freelancer, and the founder of Raijin Tech Solutions. He builds mobile apps, web platforms, AI automation, and enterprise systems for clients worldwide and has delivered 120+ projects.

What is Raijin Tech Solutions?

Raijin Tech Solutions is a software studio founded by Harley Busa that delivers mobile applications, web platforms, AI-powered automation, and enterprise systems for businesses around the world.

What services does Raijin Tech Solutions offer?

Raijin Tech Solutions offers mobile app development (iOS and Android via React Native), web platform development with React and TypeScript, AI automation and LLM integration, enterprise software development, and cloud architecture on platforms like Supabase, AWS, and Vercel.

What custom business systems does Harley Busa build?

Harley Busa builds custom systems including Hospital Management Systems, Clinic and Dental Management Systems, Student Information Systems, Attendance Monitoring Systems, Point of Sale (POS) Systems, Payroll Management Systems, Inventory and Warehouse Management Systems, HRIS platforms, Document Management Systems, Billing and Invoicing Systems, CRM platforms, and Fleet and Logistics Management Systems. Past work includes a POS system for a gas company and a payroll system for a limestone manufacturer.

Is Harley Busa available for freelance work?

Yes. Harley Busa is open to freelance and contract engagements worldwide. Reach out through the contact form on raijintech.dev or email hello@raijintech.dev.

What technologies does Harley Busa specialize in?

Harley specializes in React, TypeScript, Node.js, React Native, Python, PostgreSQL, Supabase, and modern cloud platforms. He also has deep experience integrating large language models and building AI-driven automation.

How can I contact Harley Busa or Raijin Tech Solutions?

Use the contact form at raijintech.dev or email hello@raijintech.dev for project inquiries, collaborations, and freelance engagements.

Retail operations

Inventory and Sales Tools for Vendors on the Move

A mobile-oriented workflow for keeping track of stock and sales activity away from a traditional desk setup.

July 22, 2026Generalized public summary

The operational problem

Vendors needed a more portable way to review stock and sales information while working directly in day-to-day operations.

The product approach

We shaped an approachable mobile workflow around inventory visibility and sales updates. The screens were designed around the short, repeatable actions needed during active work.

The outcome

Stock and sales updates became easier to keep current without waiting to return to a separate back-office system.

Inventory and Sales Tools for Vendors on the Move

The operational problem

The product approach

The outcome

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