Hire the Top 3% of Freelance Twitter Bootstrap Developers
Toptal is a marketplace for top Twitter Bootstrap developers, engineers, programmers, coders, architects, and consultants. Top companies and startups choose Toptal Twitter Bootstrap freelancers for their mission-critical software projects.
Alejo is a developer who’s worked for hospitality giants such as Aston Martin Residences, Capitol Tower (now the Bank of America Tower), Che Lagarto Hostels, among others; he's also worked for Globant, an Argentinian tech unicorn. Alejo's developed a custom JavaScript component-based framework with Gulp for eLearning courses for TTEC (formerly Teletech) and later developed a MERN app that builds those courses without any tech knowledge necessary.
Jon is a freelance web developer and designer specializing in framework and HTML/CSS/JavaScript programming. His background is heavy in user interface development and in customizing websites to be easy to update and use, all while adhering to strong design practices. Jon's design background and passion for furthering his development skills makes him the ideal liaison between designers and back-end developers.
Manuel has been developing front ends for nearly a decade. He has been a part of numerous development and design firms ranging from Edelman, boutique agencies, and other web app development-focused companies. He is well-versed in using HTML5, CSS3, Sass, Jade, JavaScript, jQuery, Gulp, Node.js, and other front-end technologies. He has worked as a solo freelancer and within teams for many companies. He focuses mainly on web application development.
Igor is a web developer focused on modern PHP and JS, always striving for new technologies. When he wears his back-end hat, he's focused on performant and DRY code, working on API servers or consumers. When he gets his front-end hat on, he works heavily on maintaining the best UX he can make for his users.
Jim is a passionate front-end developer with a strong record of delivering high-quality web and hybrid applications. He's worked with award-winning agencies, SME businesses, and large enterprise-scale organizations, building applications that reach millions of daily users. At Barclays, he championed a revolutionary approach to Salesforce UI development, reducing time-to-market by an average of 50%. He prides himself on quality, service, and excellent communication.
Fernando has over ten years of experience in front-end development, first working for his own company, then as a freelance and an employee, participating in a wide range of projects. Currently, he specializes in React + TypeScript/ES6, Jest and React tools testing Redux and SASS. He has experience with PHP, jQuery, and mobile web applications.
Full-stack web developer by day, gamer by night. With 5 years of experience, Marko specializes in developing JavaScript applications, both on back-end and front-end. He's a team player, an excellent communicator, and a productive and dedicated individual. He has experience working with startups and enterprise-sized companies alike, and knows technology uses, structure, cost, and coding standards inside and out.
Usman has over ten years of experience developing applications on the PHP platform—including having been part of the development team at Booxmedia—where he polished up his expertise by working along with very senior and experienced talent. He communicates well and gets along famously with teams. Usman also develops applications using popular frameworks, including Laravel and CodeIgniter.
Nishant is a well-equipped front-end web developer with over five years of experience in web development, especially working with the JavaScript library, React, and Angular. He has sound knowledge of back-end development with Node.js, NestJS, and databases, such as MongoDB.
Munawar is an innovative and result-oriented software engineer with four years of experience. He has worked mostly in Java, Spring, AngularJS, and React. Munawar is highly effective at developing new programs, thinking out of the box, and fixing problems with the existing systems. Consistently up-to-date with cutting-edge technology and proficient in Agile and Scrum methodology, he will be a great addition to any team.
Darold is a problem solver who can consistently devise scalable and sustainable solutions. He had worked for a major bank, an IT consultancy firm, and different startups. Darold is good at prototyping MVP, setting up front-end architecture, developing interactive applications, and refactoring legacy codebases.
Bootstrap developers are experts in building responsive, mobile-first web applications. This guide to hiring Bootstrap developers lays out best practices to help you identify and hire the best candidates for your company.
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Tripcents wouldn't exist without Toptal. Toptal Projects enabled us to rapidly develop our foundation with a product manager, lead developer, and senior designer. In just over 60 days we went from concept to Alpha. The speed, knowledge, expertise, and flexibility is second to none. The Toptal team were as part of Tripcents as any in-house team member of Tripcents. They contributed and took ownership of the development just like everyone else. We will continue to use Toptal. As a startup, they are our secret weapon.
Brantley Pace
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I am more than pleased with our experience with Toptal. The professional I got to work with was on the phone with me within a couple of hours. I knew after discussing my project with him that he was the candidate I wanted. I hired him immediately and he wasted no time in getting to my project, even going the extra mile by adding some great design elements that enhanced our overall look.
Paul Fenley
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The developers I was paired with were incredible -- smart, driven, and responsive. It used to be hard to find quality engineers and consultants. Now it isn't.
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Toptal understood our project needs immediately. We were matched with an exceptional freelancer from Argentina who, from Day 1, immersed himself in our industry, blended seamlessly with our team, understood our vision, and produced top-notch results. Toptal makes connecting with superior developers and programmers very easy.
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How to Hire Twitter Bootstrap Developers Through Toptal
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Talk to One of Our Client Advisors
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2
Work With Hand-selected Talent
Within days, we'll introduce you to the right Twitter Bootstrap developer for your project. Average time to match is under 24 hours.
3
The Right Fit, Guaranteed
Work with your new Twitter Bootstrap developer for a trial period (pay only if satisfied), ensuring they're the right fit before starting the engagement.
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Access a vast pool of skilled developers in our talent network and hire the top 3% within just 48 hours.
A Bootstrap developer leverages the Bootstrap front-end framework to build engaging, responsive, and user-friendly websites and mobile applications. Their primary responsibilities typically include creating user interfaces, adding interactivity, and implementing responsive designs that adapt to different screen sizes. They expertly implement Bootstrap’s grid system, classes, and components to create applications that are inherently adaptable and reliable, and that deliver visually appealing UI across the spectrum of screen sizes and devices.
Here’s a closer look at some of the key responsibilities of a Bootstrap developer:
User Interfaces – A Bootstrap engineer uses the predesigned components provided by the framework to create intuitive and aesthetically pleasing user interfaces that align with the project’s overall design goals.
Interactivity – The developer expertly implements Bootstrap’s JavaScript components to add interactivity to web pages.
Responsive Design – An expert in Bootstrap utilizes the framework’s grid system and responsive classes to ensure that your website or application looks good and functions well on all devices—from smartphones to desktop computers.
Feature Work and Debugging – A Bootstrap developer spends time coding new features, debugging and fixing issues, and customizing components to fit specific design needs. These tasks require that they stay current with the latest updates and best practices related to the Bootstrap framework.
How much does it cost to hire a Twitter Bootstrap developer?
The cost associated with hiring a Twitter Bootstrap developer depends on various factors, including preferred talent location, complexity and size of the project you’re hiring for, seniority, engagement commitment (hourly, part-time, or full-time), and more. In the US, for example, Glassdoor’s reported average total annual pay for front-end developers is $158,000 as of August 2024. (Bootstrap is a front-end framework.) With Toptal, you can speak with an expert talent matcher who will help you understand the cost of talent with the right skills and seniority level for your needs. To get started, schedule a call with us — it’s free, and there’s no obligation to hire with Toptal.
How quickly can you hire with Toptal?
Typically, you can hire a Twitter Bootstrap developer with Toptal in about 48 hours. For larger teams of talent or Managed Delivery, timelines may vary. Our talent matchers are highly skilled in the same fields they’re matching in—they’re not recruiters or HR reps. They’ll work with you to understand your goals, technical needs, and team dynamics, and match you with ideal candidates from our vetted global talent network.
Once you select your Twitter Bootstrap developer, you’ll have a no-risk trial period to ensure they’re the perfect fit. Our matching process has a 98% trial-to-hire rate, so you can rest assured that you’re getting the best fit every time.
How do I hire a Twitter Bootstrap developer?
To hire the right Twitter Bootstrap developer, it’s important to evaluate a candidate’s experience, technical skills, and communication skills. You’ll also want to consider the fit with your particular industry, company, and project. Toptal’s rigorous screening process ensures that every member of our network has excellent experience and skills, and our team will match you with the perfect Twitter Bootstrap developers for your project.
How are Toptal Twitter Bootstrap developers different?
At Toptal, we thoroughly screen our Twitter Bootstrap developers to ensure we only match you with the highest caliber of talent. Of the more than 200,000 people who apply to join the Toptal network each year, fewer than 3% make the cut.
In addition to screening for industry-leading expertise, we also assess candidates’ language and interpersonal skills to ensure that you have a smooth working relationship.
When you hire with Toptal, you’ll always work with world-class, custom-matched Twitter Bootstrap developers ready to help you achieve your goals.
Can you hire Twitter Bootstrap developers on an hourly basis or for project-based tasks?
You can hire Twitter Bootstrap developers on an hourly, part-time, or full-time basis. Toptal can also manage the entire project from end-to-end with our Managed Delivery offering. Whether you hire an expert for a full- or part-time position, you’ll have the control and flexibility to scale your team up or down as your needs evolve. Our Twitter Bootstrap developers can fully integrate into your existing team for a seamless working experience.
What is the no-risk trial period for Toptal Twitter Bootstrap developers?
We make sure that each engagement between you and your Twitter Bootstrap developer begins with a trial period of up to two weeks. This means that you have time to confirm the engagement will be successful. If you’re completely satisfied with the results, we’ll bill you for the time and continue the engagement for as long as you’d like. If you’re not completely satisfied, you won’t be billed. From there, we can either part ways, or we can provide you with another expert who may be a better fit and with whom we will begin a second, no-risk trial.
Gustavo is a startup founder and web developer with more than 17 years of experience who specializes in JavaScript and UI/UX design. He has worked with Bootstrap since its inception and—years before the existence of Zoom and Google Hangouts—single-handedly created a video collaboration service used in more than 110 countries.
Web development is thriving. The US Bureau of Labor Statistics expects the field will grow 16% from 2022 to 2032, projecting about 34,700 job openings per year. Bootstrap (formerly Twitter Bootstrap) is a leading front-end framework that makes it easier to create the responsive, mobile-first websites that are in demand.
Bootstrap plays a pivotal role in enhancing user experience and engagement for enterprise-level clients, and is implemented in popular websites, including Apple Maps Connect, Forbes India, and Reuters. Since many businesses use Bootstrap, it is understandably challenging for companies to hire Bootstrap experts in such a competitive market.
This hiring guide details how to attract, assess, and retain a Bootstrap developer. We provide you with a comprehensive understanding of what to look for in a Bootstrap expert, suggest interview questions, and note the best practices for assessing potential candidates.
What attributes distinguish quality Bootstrap Developers from others?
A quality Bootstrap developer stands apart from other front-end developers by virtue of their deep understanding of the Bootstrap framework, which enables them to build responsive web applications quickly and efficiently.
The front-end framework has undergone several major revisions, each of which introduced significant changes. An expert who is familiar with these changes and can work effectively with different versions of Bootstrap is highly valuable.
With a strong understanding of core web technologies such as HTML, CSS, and JavaScript, these professionals are skilled in more than just the Bootstrap framework. They can deliver an improved user experience since they are knowledgeable about design patterns and conversant in the design process. They make a company’s digital platforms visually consistent and appealing by building or applying these elements:
A quality Bootstrap developer is well versed in the framework’s grid system. They understand how to design layouts that provide a first-rate user experience across varied screen sizes. They will not only ensure that a website or application resizes according to the screen, but also that the user experience is optimal across all devices.
Mobile-first Approach
A strong Bootstrap developer recognizes that Bootstrap’s mobile-first approach—in which applications are designed for mobile devices first and then scaled for larger screens—aligns with the increasing prominence of mobile browsing. A Bootstrap expert ensures that mobile use is a primary consideration in design and development, not an afterthought.
Design Patterns and the Design Process
An expert Bootstrap developer effectively collaborates with designers, understanding their language and translating design into functional code. They customize existing Bootstrap components to align with the design vision.
Predesigned Components
A quality Bootstrap developer delivers a superb user experience by implementing the framework’s predesigned components.
Consistent and Professional UI/UX
An expert developer applies Bootstrap’s clean and modern aesthetic to ensure a consistent look and feel across the application, enhancing users’ perceptions of and interactions with the company’s brand.
Optimal Performance
A Bootstrap expert includes only the necessary Bootstrap components, avoiding unnecessary bloat, increasing an app’s efficiency and expediency, and keeping load times brief.
Accessibility
A skilled Bootstrap developer prioritizes accessibility throughout the development process, enhancing Bootstrap’s components by implementing custom accessibility requirements. They apply semantic HTML and ARIA attributes, follow guidelines for color contrast and keyboard interactions, and test with assistive technologies. They stay updated on best practices, collaborate with designers, and create inclusive enterprise websites.
Complementary Technology Skills for the Bootstrap Expert
These skills enable the quality developer to best leverage the Bootstrap framework:
HTML and CSS
Because Bootstrap offers an extensive collection of CSS styles, components, and templates, it is essential that a Bootstrap expert be proficient in HTML and CSS. Understanding nuances such as specificity and cascading helps the quality Bootstrap developer write custom CSS to override the program’s default styles or add styling.
JavaScript
A Bootstrap expert leverages the JavaScript event model effectively to add custom interactivity and features like JavaScript code that responds to user actions and triggers specific behaviors in Bootstrap components.
Version Control
A Bootstrap developer uses a version control system such as Git to manage code. They track changes, collaborate with other developers and teams, resolve merge conflicts, and revert to previous versions of code, as necessary.
Testing
Robust testing practices ensure the quality and reliability of Bootstrap websites and apps. A quality developer writes unit, integration, and end-to-end tests to verify the quality of their code. They are familiar with testing frameworks such as Jest or Mocha, and have experience with tools like Selenium for browser-based testing.
Deployment
A Bootstrap expert deploys websites and apps to production environments. They are proficient in the principles of continuous integration/continuous deployment (CI/CD), effectively utilize content delivery networks (CDNs), and configure and manage web servers for seamless deployment and efficient hosting.
How can you identify the ideal Bootstrap Developer for you?
You will know what to look for in a Bootstrap developer only after delineating your project’s requirements. To nail these down, you must first identify the problem you wish to solve, and the skills gap you need to fill in order to solve that problem.
What Bootstrap development expertise level should you target?
Evaluate and determine the level of expertise necessary to fulfill your project’s needs. Consider its complexity, budget, and timeline. Are you looking to build a responsive website from scratch? Are you optimizing an existing site for better mobile performance? Do you need to customize the Bootstrap framework extensively to match a unique design, or will standard components suffice? How much money and time do you have to make this happen?
The answers to these questions will identify the appropriate level of Bootstrap developer expertise for your project:
Bootstrap Developer Level
Description
Junior
These developers have elementary experience or are newer to using Bootstrap. They can handle basic tasks, such as implementing Bootstrap components, building simple responsive layouts, and adding basic customizations to Bootstrap styles.
If your project is straightforward or on a tight budget, and if you will be providing guidance and helpful resources, hiring a junior developer is a good, cost-effective option.
Mid-level
These professionals have more experience and possess a deeper understanding of the Bootstrap framework. Mid-level developers are capable of performing more complex tasks, such as the extensive customization of Bootstrap, optimizing for performance, and building complex, responsive designs.
A mid-level developer is a good choice if your project involves a moderate level of complexity and aligns well with Bootstrap’s standard application scenarios.
Senior
These experts are highly experienced and have a thorough understanding of the Bootstrap framework. They can handle any project, lead a team, make architectural decisions, and resolve challenging problems. They are adept at creating responsive designs, optimizing for performance, and customizing Bootstrap extensively.
If your project requires extensive customization, has a large scope, or is on a tight schedule, hiring a senior developer expert in Bootstrap is ideal. The higher cost of a senior developer is offset by the efficiency and expediency they bring to a project. A senior developer is best positioned to deliver a high-quality outcome within the specified timeline.
How to Write a Bootstrap Developer Job Description for Your Project
An effective job description features a fitting title. Support your company’s hiring process by composing a job title to accurately reflect the role’s responsibilities and level of expertise. When possible, work into the title an indication of whether the role is best suited for a junior, mid-level, or senior developer. Possibilities may include:
Senior Bootstrap developer.
Junior front-end developer with Bootstrap experience.
Senior web developer (Bootstrap).
UX/UI developer with Bootstrap proficiency (mid-level).
Detail and delineate your project, and name and describe the related and complementary skills you seek. For example:
HTML and CSS proficiency – A developer should have a solid understanding of HTML and CSS for effective utilization of Bootstrap components and customization.
JavaScript expertise – A developer should have proficiency in JavaScript to enhance the interactivity and functionality of mobile applications within Bootstrap.
Responsive design knowledge – A developer should have an understanding of responsive design principles to create adaptable interfaces for various devices using Bootstrap’s grid system.
To set developers’ expectations regarding working remotely, be sure to describe your company’s policy regarding telecommuting. You can also incorporate such details into a job title (by labeling the role as on-site, hybrid, or remote).
What are the most important Bootstrap Developer interview questions?
Asking effective interview questions enables your assessment of an applicant by eliciting responses that reveal their depth of knowledge beyond simply characterizing Bootstrap. For starters, explore applicants’ technical competencies, problem-solving abilities, communication skills, and how they work within a team.
Below is a sampling of questions and model answers to help you identify the ideal Bootstrap developer for your project.
Start with technical questions to ensure candidates have a grasp of the basics:
Can you explain how the Bootstrap grid system works?
Bootstrap’s grid system is a flexible, mobile-first layout system designed for building responsive websites. It utilizes a 12-column grid structure and classes like .col-, .col-sm-, and .col-md- to control layouts for different screen sizes.
By dividing a webpage into rows and columns, responsive layouts can be effortlessly crafted to adapt to varying device or screen dimensions. The grid system follows a mobile-first approach, with default styles targeting smaller screens.
Additional classes can be used to adjust the layout as the screen size increases. With features like column offsetting, nesting, and responsive column reordering, the Bootstrap grid system provides the flexibility to create complex and responsive layouts to suit specific design needs.
How would you customize Bootstrap’s default styles?
There is more than one way to customize Bootstrap. For instance, developers may override styles using custom CSS. Alternatively, they can modify variables using Sass (a CSS preprocessor) or Bootstrap’s built-in theming options.
What is your experience with different versions of Bootstrap, and how do you handle migration between versions?
The applicant should share their perspective as it pertains to their unique experiences in:
Collaborating with team members to ensure a smooth transition to a newer version of Bootstrap.
Identifying significant changes between Bootstrap versions. This process can include examining the official release notes and migration guides, which detail new features, modifications, and deprecated elements.
When migrating—for example, from Bootstrap 4 to 5—the applicant must update the Bootstrap reference in their project, and adapt the code to comply with the framework’s changes. This may include updating Flexbox grid classes, then thoroughly testing the application. Additional strategies might include hands-on experimentation and code comparison through version control systems or online tools like GitHub, all to ensure that the transition between versions is smooth and leverages the latest features of the framework.
Next, assess a candidate’s problem-solving and teamwork abilities:
Can you describe a challenging problem you faced while working with Bootstrap—and how you solved it?
A prospective candidate’s answer should demonstrate their abilities to:
Troubleshoot issues.
Be persistent.
Think creatively or outside the box.
How do you ensure effective communication when working with designers or other members of the development team?
Strategies for clear communication include regular meetings, clear documentation, and use of collaboration tools.
Candidates should also emphasize their understanding of the design process, and delineate the benefits that result from working closely with designers. These include:
Promoting cohesive aesthetics.
Ensuring user-centric designs.
Streamlining development tasks.
Fostering effective communication for rapid prototyping and iterative improvements.
Finally, you may ask more advanced role-specific questions to see how the candidate’s experience aligns with your project goals:
How would you test Bootstrap code to ensure it works across various devices and browsers?
The developer should share experiences that speak to their:
Familiarity with testing practices, which should include both manual testing across various browsers and devices and automated testing. They may use tools like Selenium for traditional methods, along with more modern tools like Cypress and TestCafe.
Use of various testing tools and techniques. They may employ a blend of platforms such as BrowserStack and LambdaTest for comprehensive cross-browser testing, as well as Chrome’s built-in DevTools for responsive testing.
Can you explain your process for deploying a Bootstrap website or app?
The developer should share their experience with the deployment process:
Setting up a CI/CD pipeline – Tools like GitHub Actions and GitLab CI/CD are popular solutions for managing continuous integration and continuous deployment, offering seamless integration with code repositories.
Using a version control system – A developer can, for example, manage code with Git, hosted on platforms like GitHub or Bitbucket, to track changes and collaborate.
Deploying to a CDN or a web server – For deployment, Vercel and AWS Amplify are gaining traction for their simplicity and scalability. These platforms offer one-click deployment options directly from a Git repository.
Optimizing and monitoring app health – For optimization, Lighthouse provides in-depth performance insights. For monitoring, Datadog and Sentry are popular choices, offering real-time analytics and error tracking.
Why do companies hire Bootstrap Developers?
The multifaceted skill set of a Bootstrap expert is essential for businesses aiming to have a strong digital presence in today’s online world. A Bootstrap developer creates responsive and modern websites and mobile applications using the Bootstrap front-end framework. As Bootstrap is open source and widely adopted, a business can be assured that its project and developers are supported by Bootstrap’s large community of engineers who work continuously to deliver improvements and enhancements.
A Bootstrap expert is skilled in more than just the Bootstrap framework. They have a strong understanding of core web technologies, as well as complementary technologies, design patterns, and the design process. As such, they ensure that a company’s digital platform is visually appealing and consistent. Hiring an adept Bootstrap developer is an investment in producing high-quality, responsive, and aesthetically pleasing websites and mobile applications.
The technical content presented in this article was reviewed by Vasilis Kortsimelidis.
