Hire the Best Bootstrap Specialists

Clients rate our Bootstrap Specialists
Rating is 4.8 out of 5.
4.8/5
Based on 2,901 client reviews
Rizwan Z.

Faisalabad, Pakistan

$25/hr
4.8
231 jobs

Over the last 11+ years, I have developed a wide range of websites using HMTL , React, XHTML , CSS, Python , CSS3, PHP , ASP, ASP.NET , Action Script , MS-SQL, Wordpress, Statamic Woocommerce, osCommerce, Magento, Concrete5, Laravel, SocialEngine, ZenCart, Cold Fusion, IBM Watson, Bluemix, Angular JS, Statamic, Vue.js Zend Framework, Concrete5 CMS, AJAX , JavaScript, OO-JS , jQuery, AWS, YUI, Mootools and MySQL, MSSQL including sites for startup companies and small businesses, shopping carts, Video Sharing websites, Order Booking and Betting, Yellow Page, Vehicles, Vehicle parts, Properties & Investment, Real Estate etc... My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build websites, applications from the ground up for you or your business. I also have good working experience in the following areas: Ruby, Java, JSP, PHP and software design and testing.

  • CSS
  • WordPress
  • PHP
  • jQuery
  • Statamic CMS
  • Twitter/X Bootstrap
  • Concrete5 CMS
  • Laravel
  • Database Design
  • Web Application
  • Vue.js
  • API Integration
  • Web Development
  • Search Engine Optimization
Maulik P.

Ahmedabad, India

$25/hr
4.5
117 jobs

Available for quick fixes & long-term projects ✔︎ 100+ Projects Delivered | 6,000+ Hours on Upwork ✔︎ 10+ Years Experience Building Enterprise Applications & AI-Powered Platforms ✔︎ Specialized in AI Solutions, SaaS Platforms, Cloud Architecture & Full Stack Development ✔︎ Industries: Cybersecurity, Healthcare, Travel, eCommerce, Logistics, Real Estate, FinTech, Education & Biotech Are you looking for an AI architect and full stack developer who can build scalable systems with clean architecture, reliable execution, and long-term maintainability? For the past 15 years, I have helped clients build AI-powered platforms, SaaS products, and cloud applications, with deep expertise in backend architecture, AI integrations, API development, frontend engineering, and cloud deployment. Core Capabilities: - AI & Data Engineering: OpenAI, Claude, Gemini, LLMs, Generative AI, RAG, LangChain, LangGraph, LlamaIndex, AI Agents, Multi-Agent Systems, Prompt Engineering, LLM Orchestration, AI Automation, Semantic Kernel, OpenCV, Vector Search, Embeddings, Knowledge Bases, OCR Workflows, n8n, Vapi, Retell AI, ElevenLabs, Voiceflow, Twilio - Backend & Architecture: Python, FastAPI, Django, ASP.NET Core, .NET, C#, REST APIs, Web APIs, OpenAPI, Microservices, Entity Framework, Dapper, SQLAlchemy, Pydantic, Celery, Async Python, Azure Functions, JWT, OAuth2, Azure AD B2C, Node.js, Real-Time Systems, WebSockets, Clean Architecture - Frontend Development: React.js, Angular, Next.js, JavaScript, TypeScript, HTML5, CSS3, Tailwind CSS, Bootstrap, Responsive UI Development - Database & Caching: SQL Server, PostgreSQL, MySQL, MongoDB, Redis, ChromaDB, Qdrant, Vector Databases, Database Design, Query Optimization, Semantic Search - Cloud & DevOps: Microsoft Azure, AWS, Azure API Management, Azure Functions, Azure DevOps, GitHub Actions, Docker, CI/CD Pipelines, Deployment Automation, Cloud Architecture - Third-Party Integrations: REST APIs, OpenAPI/Swagger, Webhooks, OAuth2, API Authentication, MCP, Zoom, QuickBooks, SugarCRM, PayPal, Authorize.Net, Sabre, Expedia, Hotelbeds, Travel APIs, Umbraco, DNN, CKEditor, TinyMCE, WebSocket Integrations I am committed to doing things the right way no inflated promises. I deliver what is needed with precision, integrity, and a strong work ethic. If you have got a vision or challenge in mind, let’s connect. I am ready to listen, learn, and lay out a clear, actionable path forward. Thanks!

  • Bootstrap
  • Microsoft SQL Server
  • Azure DevOps
  • JavaScript
  • ASP.NET MVC
  • SQL
  • Python
  • C#
  • AngularJS
  • ASP.NET
  • React
  • API Integration
  • AI App Development
  • API Development
  • Machine Learning
  • .NET Core
  • Web Design
  • Automation
  • Front-End Development
  • REST API
Javed I.

Multan, Pakistan

$30/hr
4.8
1,681 jobs

🌟 Why My WordPress Services Deliver Results Top Rated Plus WordPress Developer with 10+ years of experience building high-converting WordPress websites using Elementor Pro, WooCommerce, custom themes, and performance optimization. $150K+ earned on Upwork at 99% Job Success Score, Top Rated Plus 200+ WordPress Website Developer, themes, and Landing Pages over 4,000+ Upwork hours Wordpress SEO & WordPress speed optimization doubling organic traffic Responsive, conversion-focused builds with Core Web Vitals 90+/100 and load times cut 55% 🔥 Recent win - a custom WordPress Elementor Website build with conversion-focused Wordpress Website Design and Wordpress SEO increased a client's leads by 200% while cutting load time in half. 💡 Most WordPress Website projects are slow, bloated, and fail to convert. With 10+ years as a WordPress Developer and WordPress Designer, I architect scalable WordPress Website Elementor and Wordpress Website Design solutions that turn visitors into customers and boost Wordpress SEO 💡 ✉️ Send me your project URL - I'll reply with a free audit within a few hours, covering Wordpress SEO and Website Design. 🥇 Top 1% in WordPress 🙌 10+ Years of Experience 🏆 Certified WordPress Developer 🤝 WHY CLIENTS CHOOSE ME Building any type of website from scratch or redesigning existing website.. Long-term website maintenance, ongoing website support, webmaster and Virtual Assistant Full-stack developer / WordPress / PHP / JavaScript / jQuery / mySQL / HTML5 / CSS3 WordPress Template Web Design (including Woo Themes, Themeforest, Elegant Themes, Genesis Framework, X Theme, Avada Theme, Brooklyn Theme, Enfold Theme, Kallyas, Thrive Theme, Divi, Impreza, The7, Thrive, Bridge, Jupiter, Newspaper, Flatsome, Salient, Kalium, Mag and Weaver Theme etc.) Gutenberg, Elementor Pro, Visual composer(WPBakery), Fusion builder, Beaver builder or any page builder plugin. Responsive WordPress Websites. Figma, Adobe XD, Sketch or PSD to WordPress and Landing page. WordPress E-commerce Site with WooCommerce integration. WordPress Multi-Site, Membership website and Multilingual website. WordPress Install and Setup. Wordpress migration like Wix to Wp. WordPress upgrade. WordPress Theme Install and Customization. Genesis Framework Website load time / speed optimization and wordpress SSL/https activation WordPress Bug Fixes and restoring hacked websites. WordPress website and server hosting migration for hosting providers like AWS, Godaddy, Bluehost, Hostgator, 1&1, namecheap, wpengine and Siteground etc. 🚀 Services includes WordPress Custom Code (HTML5/CSS3/PHP) Plugin Development Theme Development Wordpress WooCommerce / eCommerce WordPress Security WordPress SEO Plugin WordPress Lead Pages Website Maintenance / Customization Website Speed Optimization Develop Landing Page Core Web Vitals Malware Removal Website Migration WordPress Development Ecommerce Website Website Redesign Figma to WordPress WordPress Bug Fix Elementor Pro WordPress Consultation 🗣️ CLIENT TESTIMONIALS ⭐ "Javed was awesome in figuring out my issues. He went above and beyond on the task. I will definitely be using him again and recommend you do too!!" ⭐ "Very impressed with the quality of work and the quick turnaround time. I highly recommend Javed! Thanks for a great project!" ⭐ "My first time working with Javed and he did a great job, and in the timeframe promised. Will be working with him again for sure." "It is literally true that you can succeed best and quickest by helping others to succeed." — Napoleon Hill 📣 WANT TO IMPROVE YOUR WORDPRESS WEBSITE AND BOOST CONVERSIONS? Let's discuss your project and create smarter systems that work for you—24/7.

  • WordPress Development
  • JavaScript
  • PHP
  • API Integration
  • ChatGPT
  • WordPress Consultation
  • WordPress Optimization
  • WordPress Customization
  • WordPress Website
  • WordPress Plugin
  • WordPress Theme
  • Elementor
  • Web Development
  • WordPress Website Design
  • WooCommerce
  • WordPress e-Commerce
  • Claude
  • Responsive Design
  • WordPress Migration
  • WordPress Bug Fix
Mariia K.

Rugby, United Kingdom

$30/hr
5.0
7 jobs

Same problem as before, doubled: "front end" appears about thirty times, and the bullet list and the "What I actually deliver" section repeat each other almost line for line. The 200ms observation is a good opener but it's stated rather than made vivid. Users never say "the dropdown animation is 200ms too slow." They say the app feels cheap. Frontend developer, 7+ years. SaaS platforms, dashboards, admin panels. Interfaces that feel fast and look effortless don't happen at the end, they're decided in the first component. Track record: ⭐ 100% Job Success Score 🚀 50+ projects shipped across enterprise and startup teams 🎨 Pixel-perfect Figma implementation, including the motion and interaction states most builds skip 🧱 Design systems that keep components consistent as a product scales instead of drifting page by page 📊 SaaS dashboards, admin panels and CRM interfaces that stay fast and readable as the data grows 🔗 React connected to Node.js, REST and GraphQL, keeping frontend and backend contracts honest ⚡ Performance work that holds under real traffic: code splitting, lazy loading, bundle size ♿ Accessibility built in, not a Lighthouse score taken once the week before launch 🧪 Jest and Cypress, so a UI change doesn't quietly break three other screens 👥 Led frontend teams and mentored junior React developers on production projects 🧠 Claude Code daily in the workflow, every line reviewed and owned before it ships Stack: React, Next.js, TypeScript, Tailwind, Material UI. What I care about is the part users feel but never name. Spacing that holds at every breakpoint, loading states that don't jump, forms that recover when something fails, a table that still works at ten thousand rows. Most of that is invisible when it's right and obvious when it isn't. Same discipline solo or leading a team: component architecture agreed on day one, working builds early, and code the next person can extend without a walkthrough. Tell me what you're building, or what's already live and doesn't feel right yet. Text me now! 🚀

  • Bootstrap
  • React
  • CSS
  • HTML5
  • Node.js
  • JavaScript
  • CSS 3
  • Web Design
  • Python
  • PHP
  • Front-End Development
  • jQuery
  • Vue.js
  • Software Development
  • WordPress
  • Web Development
  • Landing Page
  • API Integration
  • HTML
  • AI Agent Development
Satnam S.

Ballowal, India

$12/hr
4.8
186 jobs

🏆 Top Rated Shopify Developer | Shopify Plus Expert | Custom Themes, Apps & CRO Looking for a Shopify expert who can build, customize, and optimize your store to increase sales? I help eCommerce brands, startups, and established businesses create high-converting Shopify stores that are fast, scalable, and designed for growth. With 10+ years of experience and 170+ successful Shopify projects completed, I deliver solutions that improve user experience, boost conversions, and support long-term business success. My Shopify Expertise: ✅ Shopify Store Setup & Configuration ✅ Shopify 2.0 & Shopify Plus Development ✅ Custom Shopify Theme Development ✅ Shopify Theme Customization (Free & Premium Themes) ✅ Shopify App Development (Public & Private Apps) ✅ Shopify API & Third-Party Integrations ✅ Shopify Speed & Performance Optimization ✅ Conversion Rate Optimization (CRO) ✅ Shopify Store Migration (WooCommerce, Magento, BigCommerce, Wix) ✅ Figma, Adobe XD & PSD to Shopify ✅ Landing Pages & Product Page Customization ✅ Shopify Subscription Setup (Recharge, Bold, Skio) ✅ Shopify Store Maintenance & Technical Support Technical Skills: • Shopify Liquid • JavaScript, jQuery • React.js, Node.js • PHP, Laravel • HTML5, CSS3, Tailwind CSS • REST & GraphQL APIs • Shopify Storefront API • Git & Version Control Why Clients Work With Me: ✔ 170+ Shopify Projects Successfully Delivered ✔ 10+ Years of Web Development Experience ✔ Shopify Plus & Advanced Customization Specialist ✔ Mobile-First & Conversion-Focused Development ✔ Clean, Scalable & Maintainable Code ✔ Fast Communication & Reliable Delivery ✔ Long-Term Support & Maintenance I can help you with: 🔹 Building a new Shopify store from scratch 🔹 Redesigning an existing Shopify store 🔹 Custom theme development and customization 🔹 Shopify app development and integrations 🔹 Store speed optimization and performance improvements 🔹 Shopify Plus custom solutions 🔹 Ongoing maintenance and technical support Whether you need a complete Shopify store, custom functionality, advanced integrations, or conversion-focused improvements, I can help you achieve your business goals. 📩 Send me an invitation, and let's discuss how we can grow your Shopify business. Keywords: Shopify Developer | Shopify Expert | Shopify Plus Developer | Shopify Designer | Shopify Store Development | Shopify Theme Developer | Shopify App Developer | Shopify Customization | Shopify Liquid Expert | Shopify Speed Optimization | Shopify API Integration | Figma to Shopify | Ecommerce Developer

  • React
  • Node.js
  • Next.js
  • Vue.js
  • API Integration
  • JavaScript
  • TypeScript
  • Front-End Development
  • Tailwind CSS
  • React Bootstrap
  • Full-Stack Development
  • React Native
  • API Development
  • ChatGPT
  • Front-End Development Framework
Roy V.

Groningen, Netherlands

$65/hr
4.7
305 jobs

You probably don’t need more code. You need someone who understands the product, makes sensible technical decisions and takes ownership of the work. • Expert-Vetted – Top 1% pre-screened by Upwork Talent Managers and experts in their field • Top Rated Plus – proven success on large, long-term contracts • $2M+ earned and 100% Job Success on Upwork • 247 completed jobs and 28,000+ hours worked • 5 stars from 180 verified, real client reviews • Products I’ve helped build have generated $100M+ in client revenue • 15+ years of software development experience • 200+ client reviews across Upwork and independent platforms I’m a Full Stack Developer, SaaS Developer and Backend Developer focused on production-ready software. I combine product thinking, clean architecture and hands-on delivery across the stack. As a Full Stack Developer, I own systems end to end. My frontend work is usually React-based, while the backend is built around clear APIs, reliable data models and maintainable business logic. This gives clients one Full Stack Developer who can connect the whole product instead of splitting responsibility across a React developer, web developer, mobile app developer and Backend Developer. As a SaaS Developer, I build MVPs, customer platforms, internal tools and API-driven products designed for long-term use. As a Backend Developer, I focus on performance, security, permissions, data integrity, asynchronous processing and operational stability. I also make sure every SaaS product has a sensible path from first release to scale. My core JavaScript work includes node.js backend developer and backend developer nest.js projects, together with full stack developer react delivery. I also work as a full stack developer saas, full stack ai saas developer and full stack developer javascript saas ia specialist when a product combines JavaScript, SaaS and AI. For Python products, I work as a python full stack developer and python backend developer, including python full stack developer flask, python full stack developer django and django backend developer projects. Depending on the existing stack, I can also contribute as a php backend developer, laravel backend developer, full stack developer laravel, java backend developer, .net full stack developer or backend developer rust. I’ve also handled more specific backend needs, including backend app developer work, java springboot stripe backend developer implementations and API integrations involving payments, messaging and authentication. As a Full Stack Developer and Backend Developer, I’m comfortable joining an existing system, fixing its foundations or taking a new build from architecture through release. My SaaS Developer work spans products that need a full stack developer fintech, full stack developer crm, full stack developer ecommerce, full stack developer healthcare or full stack developer marketplace. I’ve also built multi-role and booking workflows relevant to a b2b saas booking system developer, plus integrations suited to a full stack developer twilio or full stack developer supabase. For commerce and content platforms, I can support full stack developer shopify and shopify backend developer work, including projects looking for a shopify developer with expertise in ai chatbot and saas marketing. I have previous experience as a wordpress backend developer and can handle full stack developer webflow, webflow developer saas or software developer needs, although my main focus is custom SaaS and API-driven software. AI is part of the product when it adds real value. I work as a full stack developer ai, ai backend developer and full stack developer llm on LLM features, agents, data pipelines and automated workflows. I design these features to be observable, reliable and cost-controlled. That combination matters. A Full Stack Developer sees the whole system, a SaaS Developer understands product growth, and a Backend Developer protects the foundations. You get a Full Stack Developer, SaaS Developer and Backend Developer working from one product view, not three disconnected roles. When needed, I can remain your SaaS Developer while specialists from my team support delivery, and I stay accountable as the Backend Developer throughout. Clients typically bring me in when they need: • a Full Stack Developer who can own frontend and backend • a SaaS Developer who understands product growth and scaling constraints • a Backend Developer experienced with real production systems • a full stack web developer for complex workflows and modern interfaces • a full stack developer crm or full stack developer marketplace for multi-role business logic • a Full Stack Developer who can work directly or involve the right specialists from my team I work hands-on as a Full Stack Developer, SaaS Developer and Backend Developer, staying close to the product and the people using it. The goal is straightforward: software your team can confidently run, maintain and scale.

  • Bootstrap
  • Full-Stack Development
  • React
  • Node.js
  • Python
  • JavaScript
  • Web Application
  • API
  • API Integration
  • Web Design
  • MySQL
  • HTML
  • Vue.js
  • PHP
  • WordPress
  • Software Architecture & Design
  • Software Development
  • Git
  • Laravel
  • CSS

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Don't just take our word for it

Bootstrap 3: The Leading Responsive, Mobile-First Framework

Mobile-friendly, responsive websites are no longer good-to-haves—they’re must-haves. With more people than ever before opening email, browsing the web, and shopping on their mobile devices, it’s imperative to have a mobile-first mindset. If your site isn’t responsive and optimized for mobile browsing, your bounce rates will rise and your site ranking will drop. 

The most popular way to build responsive sites right now is with the Bootstrap framework. It’s lightweight, fast, and easy to use, but beyond that—what is Bootstrap, and why should you choose it as your front-end framework? In this article, we’ll look at responsive design and some of Bootstrap’s key features.

What is responsive design?

Responsive design creates websites that automatically adjust to look good and function well on any size screen. From navigation and the way content is organized, to buttons and image scalability, responsive sites are not only designed to optimize the way people see a site, but also to prioritize what information mobile users are there to get. For example, for a large retailer, prioritizing information about finding nearby stores makes sense for mobile users vs. desktop users. 

Why should I choose the bootstrap framework for my website?

So, you know you need a responsive mobile site. If your site wasn’t designed to be responsive, you’ll need to redesign or retrofit it. But if you’re planning to build a responsive mobile website or application from scratch, the Bootstrap framework is an excellent choice for a few reasons.

  • Just enough customization. Not all Bootstrap sites look like Bootstrap sites—meaning, how customized your site gets is up to you. On the spectrum of front-end design, with completely coded-from-scratch sites on one end and CMS-powered sites with dropped-in templates on the other end, Bootstrap falls right in the middle. It’s the best of both worlds: A lot of the work is already done in advance, with the grid system and lots of helpful components. And with JavaScript effects and customizable Bootstrap CSS, it’s as unique as you want it to be.
  • A mobile-first, ground-up grid approach. Bootstrap gets designers to start small. If a site looks good on a small screen, it’s easy to scale it up from there, without things getting cluttered. A top-down approach in mobile design is counterintuitive; Bootstrap reinforces that, so sites stay clean and logical on the smallest screens. Bootstrap forces designers to build sites with small screens in mind, then go from there. Bootstrap’s grid-based layout approach is the key: you can use up to 12 columns in a layout, combining them for wider columns, which are organized in layout classes—extra small, small, medium, and large for phone, tablet, and desktop-sized screens.
  • It’s fast and easy to use. Bootstrap lets developers (even back-end developers) build front ends without a ton of HTML or CSS knowledge. Whether you’re applying Bootstrap to a static HTML site, a custom PHP-coded site, or a content management system (CMS), it’s flexible. Plus, it’s downloadable right from GitHub and lets developers get a lot of work done quickly.

Bootstrap 3 basics

Bootstrap is a front-end framework that builds responsive, mobile-first websites. With a mobile-first approach at its core, its grid system forces designers to create sites for small screens, then scale designs up from there.

It uses a mix of HTML5 markup, compiled and minified CSS styling, fonts, and JavaScript. Bootstrap CSS is customizable, and even supports Less and Sass pre-compiled CSS, in addition to plain CSS files. Other highlights:

  • What you can do with Bootstrap
    • Create transition effects, image galleries, image carousels, alert messages, tooltips, dashboards, sticky footers, buttons, progress bars, popovers, pagination, drop-down menus, cover pages, and the ScrollSpy plug-in, which automatically updates a nav bar for the user, depending on where they are on the page.
  • Variety of templates 
    • Bootstrap design templates include features like typography, forms, buttons, tables, different navigation styles, modals, and more.
  • Convenient layout classes
    • These consist of Large (desktops), Medium (smaller desktops or laptops), Small (tablets), and Extra Small (mobile phones), which include containers, rows, and up to 12 columns that can be combined to make larger columns. Bootstrap lets you start out with stacked layouts (for mobile devices) that migrate to horizontal, for desktop versions.
  • The convenience of Grunt
    • Grunt is a JavaScript task runner that’s all about automation. It handles repetitive tasks like compiling, “magnification,” and unit testing, so your team doesn’t have to.
  • Browser compatibility
    • It’s compatible with Chrome, Firefox, Internet Explorer 8 and up, Safari, and Opera. Note: Bootstrap will degrade some of its features by default to work on older browsers.
  • The Bootstrap Markup API
    • Bootstrap’s all-around best API that lets you use every JavaScript plugin without writing a single line of JS code.
  • Open source
    • Download Bootstrap from GitHub and link it right into a site’s HTML file.
  • CSS pre-processors
    • Bootstrap lets you use both the Sass and Less CSS pre-compilers.
  • Easy JavaScript extensions
    • JavaScript plugins can be downloaded in just one file. To use Bootstrap with JavaScript add-ons, just reference the jQuery library in the HTML. It’s also got custom jQuery plugins that can be used individually, or compiled and minified.
  • Compatible with Bower
    • Bootstrap can be installed with Bower, a powerful package manager that helps you manage all the parts of your website like libraries, frameworks, utilities, and more.