Custom Web & Mobile Application – Automatic Construction & Renovation Price Calculator

Project Description
I am looking for an experienced Full-Stack Developer to build a custom web and mobile application (Web, Android, iOS) that automatically generates price offers for construction and renovation projects.
⚠️ This is NOT a WordPress project, NOT a presentation website, and NOT template-based.
It is a custom-built application with complex pricing logic, dynamic forms, and business rules.
________________________________________
Project Types Covered
Renovations (full / partial)
• Apartment / Studio
• House (ground floor)
• Villa
• Commercial space
• Apartment building staircases
• Hotel / Guesthouse
• Warehouse / Industrial hall
New Constructions
• House (ground floor)
• Villa
• Hotel / Guesthouse (up to G+5)
• Wooden houses and structures
• Light steel frame houses and structures
• Heavy steel structures
• Modular / SIP houses
• Warehouse / Industrial hall
• Buildings made from maritime shipping containers
________________________________________
Main Features
• Multi-step dynamic forms
• Conditional fields (shown/hidden based on selections)
• Automatic price calculation based on:
– city
– number of floors
– surface areas
– project complexity
– selected works
• Automatic price offer generation
• Automatic descriptions for each selected work
• Admin panel for:
– prices
– coefficients
– pricing rules
– work descriptions
________________________________________
Platforms Required
The application must be developed for:
• Web application
• Android
• iOS
(Progressive Web App or shared codebase solutions are acceptable.)
________________________________________
Languages Required
The application must be multilingual, supporting:
• Romanian, English. All price offers and work descriptions must be generated dynamically in the selected language.
________________________________________
Required Skills & Experience
Apply only if you have proven experience with:
• Full-Stack web development
• Custom web & mobile applications
• Business logic and pricing algorithms
• Dynamic / conditional forms
• REST APIs
• Database design (MySQL / PostgreSQL)
• JavaScript frameworks (React, Vue, or similar)
• Mobile development (React Native / Flutter / PWA)
• Multilingual applications (i18n)
• Scalable application architecture
Nice to Have
• SaaS platforms
• PDF generation (price offers)
• Progressive Web Apps
• Price configurators or calculators
________________________________________
Long-Term Collaboration
This project is the first phase of a long-term collaboration.
Ongoing needs include:
• platform maintenance and improvements
• new features and optimizations
• adapting the system for other countries
Target expansion countries: Italy, Spain, Germany, France.
I am looking for a long-term technical partner, not just a one-time delivery.
________________________________________
What This Project Is NOT
❌ WordPress / Elementor / CMS
❌ Presentation website
❌ Theme-based solution
________________________________________
Proposal Requirements
Please include:
• Relevant similar projects (calculators, configurators, SaaS apps)
• Suggested tech stack
• Estimated timeline
• Technical questions or suggestions
________________________________________
The application will be developed in stages and must be clean, extensible, and well-architected. Show More