{"id":4357,"date":"2025-09-01T18:09:34","date_gmt":"2025-09-01T16:09:34","guid":{"rendered":"https:\/\/natalia-kaczynska.profesjonalnyprogramista.pl\/?page_id=4357"},"modified":"2026-05-09T11:54:25","modified_gmt":"2026-05-09T09:54:25","slug":"porftolio-v2","status":"publish","type":"page","link":"https:\/\/natalia-kaczynska.profesjonalnyprogramista.pl\/en\/porftolio-v2\/","title":{"rendered":"Portfolio"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"4357\" class=\"elementor elementor-4357\">\n\t\t\t\t<div class=\"elementor-element elementor-element-230ca5d2 e-con-full e-flex e-con e-parent\" data-id=\"230ca5d2\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-2774c7aa e-con-full e-flex e-con e-child\" data-id=\"2774c7aa\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7c225e2b elementor-icon-list--layout-inline elementor-mobile-align-center elementor-align-left elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"7c225e2b\" data-element_type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items elementor-inline-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-inline-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"http:\/\/natalia-kaczynska.profesjonalnyprogramista.pl\/en\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">natalia-kaczynska.profesjonalnyprogramista.pl<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fab1051 elementor-widget elementor-widget-shortcode\" data-id=\"fab1051\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"><div id=\"mega-menu-wrap-secondary_menu\" class=\"mega-menu-wrap\"><div class=\"mega-menu-toggle\"><div class=\"mega-toggle-blocks-left\"><\/div><div class=\"mega-toggle-blocks-center\"><\/div><div class=\"mega-toggle-blocks-right\"><div class='mega-toggle-block mega-menu-toggle-animated-block mega-toggle-block-0' id='mega-toggle-block-0'><button aria-controls=\"mega-menu-secondary_menu\" aria-expanded=\"false\" aria-haspopup=\"true\" aria-label=\"Show\/hide menu\" class=\"mega-toggle-animated mega-toggle-animated-slider\" type=\"button\">\n                  <span class=\"mega-toggle-animated-box\">\n                    <span class=\"mega-toggle-animated-inner\"><\/span>\n                  <\/span>\n                <\/button><\/div><\/div><\/div><ul id=\"mega-menu-secondary_menu\" class=\"mega-menu max-mega-menu mega-menu-horizontal mega-no-js\" data-event=\"hover\" data-effect=\"fade_up\" data-effect-speed=\"400\" data-effect-mobile=\"slide\" data-effect-speed-mobile=\"400\" data-mobile-force-width=\"false\" data-second-click=\"go\" data-document-click=\"collapse\" data-vertical-behaviour=\"standard\" data-breakpoint=\"768\" data-unbind=\"true\" data-mobile-state=\"collapse_all\" data-mobile-direction=\"vertical\"><li class=\"mega-menu-item mega-menu-item-type-post_type mega-menu-item-object-page mega-menu-item-4547\" id=\"mega-menu-item-4547\"><a class=\"mega-menu-link\" href=\"https:\/\/natalia-kaczynska.profesjonalnyprogramista.pl\/en\/porftolio-v2\/\">Portfolio<\/a><\/li><li class=\"mega-menu-item mega-menu-item-type-post_type mega-menu-item-object-page mega-menu-item-3975\" id=\"mega-menu-item-3975\"><a class=\"mega-menu-link\" href=\"https:\/\/natalia-kaczynska.profesjonalnyprogramista.pl\/en\/about\/\">About me<\/a><\/li><li class=\"mega-menu-item mega-menu-item-type-custom mega-menu-item-object-custom mega-menu-item-has-children mega-menu-megamenu mega-menu-grid mega-align-bottom-left mega-menu-item-4304\" id=\"mega-menu-item-4304\"><a class=\"mega-menu-link\" href=\"#\" aria-expanded=\"false\" aria-controls=\"mega-sub-menu-4304\">Articles<span class=\"mega-indicator\" aria-hidden=\"true\"><\/span><\/a>\n<ul class=\"mega-sub-menu\" role='presentation' id='mega-sub-menu-4304'>\n<li class=\"mega-menu-row\" id=\"mega-menu-4304-0\">\n\t<ul class=\"mega-sub-menu\" style='--columns:2' role='presentation'>\n<li class=\"mega-menu-column mega-menu-columns-3-of-2\" style=\"--columns:2; --span:3\" id=\"mega-menu-4304-0-0\">\n\t\t<ul class=\"mega-sub-menu\">\n<li class=\"mega-menu-item mega-menu-item-type-custom mega-menu-item-object-custom mega-menu-item-has-children mega-disable-link mega-menu-item-4306\" id=\"mega-menu-item-4306\"><a class=\"mega-menu-link\" tabindex=\"0\">Design patterns<span class=\"mega-indicator\" aria-hidden=\"true\"><\/span><\/a>\n\t\t\t<ul class=\"mega-sub-menu\" id='mega-sub-menu-4306'>\n<li class=\"mega-menu-item mega-menu-item-type-post_type mega-menu-item-object-page mega-menu-item-4314\" id=\"mega-menu-item-4314\"><a class=\"mega-menu-link\" href=\"https:\/\/natalia-kaczynska.profesjonalnyprogramista.pl\/en\/elementor-4099\/\">Strategy<\/a><\/li><li class=\"mega-menu-item mega-menu-item-type-post_type mega-menu-item-object-page mega-menu-item-4313\" id=\"mega-menu-item-4313\"><a class=\"mega-menu-link\" href=\"https:\/\/natalia-kaczynska.profesjonalnyprogramista.pl\/en\/budowniczy\/\">Builder<\/a><\/li><li class=\"mega-menu-item mega-menu-item-type-post_type mega-menu-item-object-page mega-menu-item-4312\" id=\"mega-menu-item-4312\"><a class=\"mega-menu-link\" href=\"https:\/\/natalia-kaczynska.profesjonalnyprogramista.pl\/en\/fabryka\/\">Factory<\/a><\/li>\t\t\t<\/ul>\n<\/li><li class=\"mega-menu-item mega-menu-item-type-custom mega-menu-item-object-custom mega-menu-item-has-children mega-disable-link mega-menu-item-4305\" id=\"mega-menu-item-4305\"><a class=\"mega-menu-link\" tabindex=\"0\">SOLID<span class=\"mega-indicator\" aria-hidden=\"true\"><\/span><\/a>\n\t\t\t<ul class=\"mega-sub-menu\" id='mega-sub-menu-4305'>\n<li class=\"mega-menu-item mega-menu-item-type-post_type mega-menu-item-object-page mega-menu-item-4311\" id=\"mega-menu-item-4311\"><a class=\"mega-menu-link\" href=\"https:\/\/natalia-kaczynska.profesjonalnyprogramista.pl\/en\/elementor-4232\/\">Single responsibility<\/a><\/li><li class=\"mega-menu-item mega-menu-item-type-post_type mega-menu-item-object-page mega-menu-item-4310\" id=\"mega-menu-item-4310\"><a class=\"mega-menu-link\" href=\"https:\/\/natalia-kaczynska.profesjonalnyprogramista.pl\/en\/elementor-4246\/\">Open-Closed Principle<\/a><\/li><li class=\"mega-menu-item mega-menu-item-type-post_type mega-menu-item-object-page mega-menu-item-4309\" id=\"mega-menu-item-4309\"><a class=\"mega-menu-link\" href=\"https:\/\/natalia-kaczynska.profesjonalnyprogramista.pl\/en\/liskov-substitution-principle\/\">Liskov Substitution Principle<\/a><\/li><li class=\"mega-menu-item mega-menu-item-type-post_type mega-menu-item-object-page mega-menu-item-4308\" id=\"mega-menu-item-4308\"><a class=\"mega-menu-link\" href=\"https:\/\/natalia-kaczynska.profesjonalnyprogramista.pl\/en\/elementor-4278\/\">Interface Segregation Principle<\/a><\/li><li class=\"mega-menu-item mega-menu-item-type-post_type mega-menu-item-object-page mega-menu-item-4307\" id=\"mega-menu-item-4307\"><a class=\"mega-menu-link\" href=\"https:\/\/natalia-kaczynska.profesjonalnyprogramista.pl\/en\/elementor-4292\/\">Dependency Inversion Principle<\/a><\/li>\t\t\t<\/ul>\n<\/li>\t\t<\/ul>\n<\/li>\t<\/ul>\n<\/li><\/ul>\n<\/li><li class=\"mega-menu-item mega-menu-item-type-post_type mega-menu-item-object-page mega-menu-item-3976\" id=\"mega-menu-item-3976\"><a class=\"mega-menu-link\" href=\"https:\/\/natalia-kaczynska.profesjonalnyprogramista.pl\/en\/contact\/\">Contact<\/a><\/li><\/ul><\/div><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-fec4c91 e-con-full e-flex e-con e-parent\" data-id=\"fec4c91\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-dd4a9db elementor-widget elementor-widget-heading\" data-id=\"dd4a9db\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Portfolio<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-25e024b elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"25e024b\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2220517 e-grid e-con-full e-con e-parent\" data-id=\"2220517\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<a class=\"elementor-element elementor-element-2fe549e e-con-full project-box-main-page e-flex e-con e-child\" data-id=\"2fe549e\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\" href=\"https:\/\/natalia-kaczynska.profesjonalnyprogramista.pl\/en\/salon-fryzjerski-z-chatbotem-recepcjonista\/\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e831f73 project-content-main elementor-widget elementor-widget-heading\" data-id=\"e831f73\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Hair salon with chatbot receptionist<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5a41ff0 project-content-main elementor-widget elementor-widget-text-editor\" data-id=\"5a41ff0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Appointment booking app with a chatbot that helps you schedule and manage appointments.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1e99c10 project-content-main elementor-widget elementor-widget-text-editor\" data-id=\"1e99c10\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><em>Technologies used: FastAPI, SQLAlchemy, OpenAI API (including tool calling),<\/em><br \/><em>pgAdmin<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<a class=\"elementor-element elementor-element-12cc9f2 e-con-full project-box-main-page e-flex e-con e-child\" data-id=\"12cc9f2\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\" href=\"https:\/\/natalia-kaczynska.profesjonalnyprogramista.pl\/en\/elementor-strona-4737\/\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b7c4891 project-content-main elementor-widget elementor-widget-heading\" data-id=\"b7c4891\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">RAG Chatbot for an Electronics Store<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6120912 project-content-main elementor-widget elementor-widget-text-editor\" data-id=\"6120912\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A chatbot that responds to user queries on an e-commerce website using the RAG vector database.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-10e258f project-content-main elementor-widget elementor-widget-text-editor\" data-id=\"10e258f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><em>Technologies used: AWS Amazon (Claude Haiku Bedrock model, S3 (model<\/em><br \/><em>amazon.titan-embed-text-v2:0))<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<a class=\"elementor-element elementor-element-eba8612 e-con-full project-box-main-page e-flex e-con e-child\" data-id=\"eba8612\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\" href=\"https:\/\/natalia-kaczynska.profesjonalnyprogramista.pl\/en\/asystent-cv-2\/\">\n\t\t\t\t<div class=\"elementor-element elementor-element-56a09b9 project-content-main elementor-widget elementor-widget-heading\" data-id=\"56a09b9\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">CV Assistant<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-656db00 project-content-main elementor-widget elementor-widget-text-editor\" data-id=\"656db00\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><em>Used technologies: Python, Gradio, Whisper<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<a class=\"elementor-element elementor-element-6675fd1 e-con-full project-box-main-page e-flex e-con e-child\" data-id=\"6675fd1\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\" href=\"https:\/\/natalia-kaczynska.profesjonalnyprogramista.pl\/en\/aplikacja-pamietnik-chatbot-ai\/\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b44eab7 project-content-main elementor-widget elementor-widget-heading\" data-id=\"b44eab7\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Diary app with chatbot AI<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-48b151f project-content-main elementor-widget elementor-widget-text-editor\" data-id=\"48b151f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><em>Used technologies: Rest API, NodeJS, React<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<a class=\"elementor-element elementor-element-21c4ead e-con-full project-box-main-page e-flex e-con e-child\" data-id=\"21c4ead\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\" href=\"https:\/\/natalia-kaczynska.profesjonalnyprogramista.pl\/en\/aplikacja-biblioteczna\/\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1acdbf8 project-content-main elementor-widget elementor-widget-heading\" data-id=\"1acdbf8\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Library app with AI chatbot<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f07aaab project-content-main elementor-widget elementor-widget-text-editor\" data-id=\"f07aaab\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><em>Used technologies: NodeJS, Rest API, React, JavaScript<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<a class=\"elementor-element elementor-element-b377ac7 e-con-full project-box-main-page e-flex e-con e-child\" data-id=\"b377ac7\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\" href=\"https:\/\/natalia-kaczynska.profesjonalnyprogramista.pl\/en\/elementor-4491\/\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7173279 project-content-main elementor-widget elementor-widget-heading\" data-id=\"7173279\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Budgeting app<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ec305b0 project-content-main elementor-widget elementor-widget-text-editor\" data-id=\"ec305b0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><em>Used technologies: PHP with MVC framework, JavaScript, CSS<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<a class=\"elementor-element elementor-element-ca2d0d3 e-con-full project-box-main-page e-flex e-con e-child\" data-id=\"ca2d0d3\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\" href=\"https:\/\/natalia-kaczynska.profesjonalnyprogramista.pl\/en\/aplikacja-budzetowa-w-c\/\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4c065be project-content-main elementor-widget elementor-widget-heading\" data-id=\"4c065be\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Budgeting app<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-71fc70e project-content-main elementor-widget elementor-widget-text-editor\" data-id=\"71fc70e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><em>Used technologies: C++<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\n    <div class=\"xs_social_share_widget xs_share_url after_content \t\tmain_content  wslu-style-1 wslu-share-box-shaped wslu-fill-colored wslu-none wslu-share-horizontal wslu-theme-font-no wslu-main_content\">\n\n\t\t\n        <ul>\n\t\t\t        <\/ul>\n    <\/div>","protected":false},"excerpt":{"rendered":"<p>natalia-kaczynska.profesjonalnyprogramista.pl Portfolio Salon fryzjerski z chatbotem recepcjonist\u0105 Aplikacja do rezerwacji wizyt z chatbotem, kt\u00f3ry pomaga umawia\u0107 oraz zarz\u0105dza\u0107 wizytami. 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