Custom CRM, ERP & Inventory Management Systems by Steve CastilloCustom CRM, ERP & Inventory Management Systems by Steve Castillo
Custom CRM, ERP & Inventory Management SystemsSteve Castillo
Cover image for Custom CRM, ERP & Inventory Management Systems

Custom business software built around your actual workflow

I design and develop custom CRM, ERP, inventory, administrative, and operational management systems for businesses that need more than generic software.
Whether you are replacing spreadsheets, modernizing an internal process, or building a new business platform, I can help you transform your requirements into a secure, scalable, and user-friendly application.

What I can build

Custom CRM and customer management systems
ERP platforms and administrative dashboards
Inventory, product, and warehouse management
Point-of-sale and transaction workflows
Role-based access and user permissions
Reports, filters, dashboards, and Excel exports
Document management and third-party integrations
Responsive interfaces for desktop, tablet, and mobile
REST APIs and relational database architecture

My development process

Requirements and workflow analysis
Functional scope and architecture definition
Database and interface design
Incremental development and regular demonstrations
Testing, deployment, documentation, and handoff
I work with modern technologies such as Next.js, React, TypeScript, NestJS, Java Spring Boot, PostgreSQL, Docker, AWS, Azure, Supabase, and Vercel.
Each system is adapted to the client’s processes, users, integrations, and long-term goals.
Use the calendar link on this service to book a 45-minute project consultation. During the meeting, we can review your current workflow, required modules, integrations, expected timeline, and the most suitable technical approach for your project.
FAQs

Contact for pricing
Duration4 weeks
Tags
CRM
Next.js
PostgreSQL
ERP
Inventory Management
Software Engineer
Web Developer
Business Applications
Fullstack Development
Service provided by
Steve Castillo Lima, Peru
2
Followers
Custom CRM, ERP & Inventory Management SystemsSteve Castillo
Contact for pricing
Duration4 weeks
Tags
CRM
Next.js
PostgreSQL
ERP
Inventory Management
Software Engineer
Web Developer
Business Applications
Fullstack Development
Cover image for Custom CRM, ERP & Inventory Management Systems

Custom business software built around your actual workflow

I design and develop custom CRM, ERP, inventory, administrative, and operational management systems for businesses that need more than generic software.
Whether you are replacing spreadsheets, modernizing an internal process, or building a new business platform, I can help you transform your requirements into a secure, scalable, and user-friendly application.

What I can build

Custom CRM and customer management systems
ERP platforms and administrative dashboards
Inventory, product, and warehouse management
Point-of-sale and transaction workflows
Role-based access and user permissions
Reports, filters, dashboards, and Excel exports
Document management and third-party integrations
Responsive interfaces for desktop, tablet, and mobile
REST APIs and relational database architecture

My development process

Requirements and workflow analysis
Functional scope and architecture definition
Database and interface design
Incremental development and regular demonstrations
Testing, deployment, documentation, and handoff
I work with modern technologies such as Next.js, React, TypeScript, NestJS, Java Spring Boot, PostgreSQL, Docker, AWS, Azure, Supabase, and Vercel.
Each system is adapted to the client’s processes, users, integrations, and long-term goals.
Use the calendar link on this service to book a 45-minute project consultation. During the meeting, we can review your current workflow, required modules, integrations, expected timeline, and the most suitable technical approach for your project.
FAQs

Contact for pricing