Full-stack development

Need a full-stack developer who is free for work and not looking to get rich immediately from this project.

This is my test site:

readyhome.ge

the prototype of which I want to create (not referring to design). In the footer, there is Russian language, fill out the questionnaire and go to the configurator.

Here is the description of the site:

User:

Fills in the parameters of the object.

Selects the interior style.

Configures materials and finishing elements by rooms.

Receives a preliminary cost estimate for repairs and engineering systems.

The platform should visually resemble a modern configurator/builder with the logic of an online store.

1. Step-by-step configurator

The configurator consists of 5 stages:

Object parameters

Style selection

Interior configuration

Engineering systems

Result and final cost

At all stages, the following is displayed:

current repair cost

base cost

material cost

engineering

additional options

total amount

2. Stage "Style Selection"

The user selects a ready-made interior style.

Examples:

Scandinavian

Loft

Neoclassic

For each style:

image

name

short description

Styles should be managed from the admin panel.

3. Stage "Interior Configuration"

Main screen of the platform.

Logic

The user selects a room:

living room

bedroom

kitchen

bathroom

studio

After selecting a room, the configurator for materials and elements opens.

4. Material showcase

On the right, a showcase of goods and materials is displayed.

For each product:

image

name

brand

manufacturer

size

color

price

When clicked, the product enlarges in a popup.

Products are displayed by categories:

walls

floor

ceiling

lighting

doors

baseboards

plumbing

radiators

switches, etc.

Each type of room has its own set of categories.

5. Selection logic

The user can:

select material

replace material

disable individual elements

add additional options

When materials are changed, the cost is recalculated automatically.

6. Engineering systems

A separate stage with:

basic engineering package

additional engineering options

Examples:

warm floor

air conditioning

video surveillance

leak protection

smart home

Some options are included in the base cost.

7. Final screen

Displays:

total cost

cost breakdown

selected style

object parameters

list of materials

engineering systems

additional options

Also:

button to submit an application

button to save the calculation

option to send to the manager

8. Admin panel

Need the ability to manage:

styles

products

categories

prices

calculation coefficients

engineering packages

additional options

All main values should be editable without the involvement of a programmer.

For such a configurator, the database should be structured not like a regular site, but like an e-commerce structure + parametric calculator.

Otherwise, when adding materials, formulas, and styles, the system will quickly break down.

Main principle:

divide the system into 5 independent modules

1. user projects

2. materials catalog

3. interior configuration

4. engineering packages

5. calculation

---

1. General architecture of the database

The correct scheme should look like this:

USERS

PROJECTS

PROJECT_ROOMS

PROJECT_BATHROOMS

STYLES

STYLE_ROOMS

STYLE_DEFAULT_MATERIALS

PRODUCTS

PRODUCT_CATEGORIES

PRODUCT_ATTRIBUTES

PROJECT_SELECTED_PRODUCTS

ENGINEERING_PACKAGES

ENGINEERING_OPTIONS

PROJECT_ENGINEERING

PRICE_RULES

PRICE_COEFFICIENTS

This is a modular architecture.

---

2. USERS table

Users of the system.

users

-----

id

name

phone

email

created_at

A user can have multiple projects.

---

3. PROJECTS table

Main entity.

projects

--------

id

user_id

property_type (apartment / house)

frame_type (white / black)

total_area

balcony_area

balcony_tiles

gas_available

kitchen_type

rooms_count

bathrooms_count

base_price_S

status (draft / calculated / ordered)

created_at

This is the core of the project.

---

4. PROJECT_ROOMS table

Rooms are created dynamically.

project_rooms

-------------

id

project_id

room_type

(living_room

bedroom

studio

kitchen

bathroom

balcony)

area

Example:

Living room — 44 m²

Bedroom — 16 m²

Kitchen — 24 m²

---

5. STYLES table

Three basic styles.

styles

------

id

name

description

preview_image

Example:

1 Scandinavian

2 Loft

3 Neoclassic

---

6. STYLE_DEFAULT_MATERIALS table

Default materials for the style.

style_default_materials

-----------------------

id

style_id

room_type

category_id

product_id

Example:

Scandinavian

room: bedroom

floor: oak laminate

This allows the configurator to be automatically filled.

---

7. PRODUCT_CATEGORIES table

Categories of materials.

product_categories

------------------

id

name

room_scope

Example:

Walls

Accent wall

Floor

Doors

Lighting

Switches

Radiators

Plinth

Cornice

---

8. PRODUCTS table

All products from the hypermarket.

products

--------

id

category_id

name

brand

manufacturer

price

unit

(m2

piece)

image

description

Example:

Oak laminate

$18

m2

---

9. PRODUCT_ATTRIBUTES table

Product characteristics.

product_attributes

------------------

id

product_id

attribute_name

attribute_value

Example:

color

size

thickness

---

10. PROJECT_SELECTED_PRODUCTS table

Products selected by the user.

project_selected_products

-------------------------

id

project_id

room_id

category_id

product_id

quantity

calculated_price

For example:

project 12

room bedroom

floor laminate

price = 620$

---

11. ENGINEERING_PACKAGES table

Basic engineering.

engineering_packages

--------------------

id

name

included

price

Example:

Electrical wiring

included

Leak protection

included

---

12. ENGINEERING_OPTIONS table

Additional options.

engineering_options

-------------------

id

name

price

unit

(piece / project)

Example:

air conditioner installation

$220

---

13. PROJECT_ENGINEERING table

What the user selected.

project_engineering

-------------------

id

project_id

engineering_option_id

quantity

price

---

14. PRICE_RULES table

Calculation formulas.

price_rules

-----------

id

rule_name

room_type

category_id

formula

Example:

floor_laminate

(area * (price + 2))

---

15. PRICE_COEFFICIENTS table

Constants P.

price_coefficients

------------------

id

name

value

Example:

balcony_tile = 75

laminate_underlay = 2

tile_glue = 10

tile_glue_heated = 21

---

16. BASE_PRICE_S table

Base prices.

base_prices

-----------

id

area_min

area_max

price_S

Example:

20-30 = S1

30-40 = S2

40-55 = S3

---

17. How the calculator works

Algorithm:

1 user enters the area

2 the system selects S

3 adds coefficients P

4 adds selected materials

5 adds engineering options

---

18. Why this architecture is correct

It solves three problems.

1. easy to add materials

Without changing the code.

---

2. easy to change formulas

Through the admin panel.

---

3. easy to add new styles

---

19. How the table relationships look

users

↓

projects

↓

rooms

↓

selected_products

↓

products

↓

categories

And separately

engineering

---

20. The most important recommendation

Do not store formulas in code.

Store in the table:

price_rules

Otherwise, in a year the system will become unmanageable.

Recommended project stack (acceptable alternatives can be considered):

Frontend:

React

Next.js

TypeScript

Tailwind CSS

---------

Backend:

NestJS (Node.js)

TypeScript

---------
Database:

PostgreSQL

----------

Storage of material images:

Amazon S3 or Cloudflare R2

----------

Admin panel:

React + ready-made internal CMS or

Strapi (if a quick launch is needed)

-----------

Authorization

JWT

------------

Hosting:

VPS (Hetzner) or

DigitalOcean