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English
$
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I will build custom web applications, including saas, CRM, erp, pos and school systems
Tullius
About this gig
Need a custom web application built around your business, workflow or idea?
I will develop a responsive and scalable web application, SaaS platform, CRM, ERP, POS or school management system tailored to your requirements.
WHAT I CAN BUILD:
- Custom web applications & SaaS platforms
- CRM & customer management systems
- ERP & business management software
- POS & inventory management systems
- School management systems
- Admin dashboards & analytics
- User authentication & role management
- REST API & third-party integrations
- Database driven applications
- Payment & subscription functionality
PERFECT FOR:
Startups, schools, retailers, agencies, SaaS businesses, eCommerce, real estate, finance and companies that need custom business software.
TECH STACK
React, Next.js, Node.js, Express.js, TypeScript, JavaScript, Tailwind CSS, PostgreSQL, MongoDB, Supabase, REST APIs and Git.
WHY CHOOSE ME:
Clean development, responsive interfaces, secure architecture, scalable functionality and clear communication throughout the project.
Have a Figma design, existing system or new idea? Message me before ordering so I can review your requirements and recommend the right solution.
Get to know Tullius
Tullius
3D Web and Software Developer Threejs, WebGL, Shopify
- FromBrazil
- Member sinceSep 2026
- Avg. response time1 hour
Languages
English, Portuguese, French, German, Italian, Spanish
I’m Tullius a 3D Web & Software Developer focused on building modern, interactive digital experiences that look great and work smoothly. I develop custom web applications, SaaS platforms, interactive 3D websites, immersive 3D landing pages, product configurators and Shopify experiences.
My stack includes Three.js, WebGL, React, Next.js, React Three Fiber (R3F), GSAP, JavaScript, TypeScript, Node.js, Tailwind CSS and Shopify.
Have an idea, design or reference? Send me a message and let’s turn it into a working experience.
FAQ
Can you build a custom web application from scratch?
Yes. I can develop custom web applications based on your business requirements, workflow, design or existing system.
Can you build SaaS, CRM, ERP or POS systems?
Yes. I can build custom SaaS platforms, CRM, ERP, POS, inventory and business management systems with the required modules and functionality.
Can you develop a school management system?
Yes. I can build school management platforms with features such as student records, staff management, classes, payments, dashboards and user roles.
Can you integrate APIs, databases and payment systems?
Yes. I can integrate REST APIs, databases, third-party services, authentication, payment gateways and other required integrations.
Can you build user authentication and different user roles?
Yes. I can implement secure authentication with different permissions and roles such as admin, staff, teacher, student or customer.
What do you need before starting my project?
Send your requirements, Figma design, reference website or existing application. If you only have an idea, message me and we can define the right scope before ordering.
