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Mark Dr., UI/UX Designer

Bratislava, Slovakia
Last Updated: 30 Nov 2023

Accomplished Software Engineer boasting a solid educational background with Bachelor's and Master's degrees in technical fields, complemented by a track record of successful UI/UX design projects. Technical proficiency is evidenced by hands-on experience with tools such as Figma, Photoshop, and Illustrator, and reinforced by a deep understanding of design-research methodologies and user-centric development principles. A career highlighted by pivotal wins in prestigious competitions such as the Intel ISEF and a proven entrepreneurial aptitude as CEO of a startup demonstrates a blend of strategic acumen and technical prowess. Engineering excellence is further showcased by the delivery of innovative solutions within broad technology stacks, highlighting expertise in responsive design, prototyping, and collaboration with cross-functional teams to meet diverse client needs.

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Responsive Design

Responsive Design







Adobe Illustrator

Adobe Illustrator

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Yuliya M., UI/UX Designer

Warsaw, Poland
Last Updated: 31 Oct 2023

- Experienced UX/UI designer with over 5 years of expertise in web and mobile app design. - Proficient in creating illustrations, logos, and icons, showcasing strong graphic design skills. - Skilled in developing Figma components and libraries for seamless and user-friendly experiences. - Strong background in user-centric design, problem-solving, and attention to detail. - Extensive experience in wireframing, prototyping, and user research for effective product design. - Proficient in tools such as Figma, Adobe Photoshop, and Adobe Illustrator. - Worked on diverse projects in industries like financial services, healthcare, and education, showcasing adaptability and versatility in design. - Upper-Intermediate English

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Responsive Design

Responsive Design   4 yr.


Figma   5 yr.

Adobe Photoshop

Adobe Photoshop   7 yr.

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Timofey B., UI/UX and Product Designer

Kyiv, Ukraine
Last Updated: 7 Aug 2023

- More than 19 years at  Design sphere - Proven work experience as a UI/UX , Graphic, Product Designer  - Proven work experience as a Design Lead - Art direction of digital design projects - Design department management - Up-to-date knowledge of design software like Adobe Illustrator and Photoshop, Figma  - Experience in creating own IT product - Team spirit; strong communication skills to collaborate with various stakeholders  - Good time-management skills  -Intermediate+ English - Availability starting from 21.08.2023

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Responsive Design

Responsive Design



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Aleksandr K., Markup developer

Kharkiv, Ukraine
Last Updated: 24 Aug 2023

- 8+ years of commercial experience in IT - Good logical thinking, high level of responsibility - Communicative, responsible, hardworking, result-oriented, and team player - Good attention to details - Pre-Intermediate English. - Availability starting from ASAP.

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Responsive Design

Responsive Design





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ADEWUNMI OLUWAPELUMI, Front-end Web Developer

Lagos, Nigeria
Last Updated: 4 Mar 2024

solid foundation in front-end development Demonstrates expertise in JavaScript, React, HTML, CSS, and TailwindCSS, with a proven track record of optimizing websites and debugging.

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Responsive Design

Responsive Design

Website optimizations

Website optimizations

Web Development

Web Development


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Henry Akwerigbe
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This is a super team to work with. Through Upstaff, I have had multiple projects to work on. Work culture has been awesome, teammates have been super nice and collaborative, with a very professional management. There's always a project for you if you're into tech such Front-end, Back-end, Mobile Development, Fullstack, Data Analytics, QA, Machine Learning / AI, Web3, Gaming and lots more. It gets even better because many projects even allow full remote from anywhere! Nice job to the Upstaff Team 🙌🏽.
Vitalii Stalynskyi
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I have been working with Upstaff for over a year on a project related to landscape design and management of contractors in land design projects. During the project, we have done a lot of work on migrating the project to a multitenant architecture and are currently working on new features from the backlog. When we started this project, the hiring processes were organized well. Everything went smoothly, and we were able to start working quickly. Payments always come on time, and there is always support from managers. All issues are resolved quickly. Overall, I am very happy with my experience working with Upstaff, and I recommend them to anyone looking for a new project. They are a reliable company that provides great projects and conditions. I highly recommend them to anyone looking for a partner for their next project.
Владислав «Sheepbar» Баранов
Владислав «Sheepbar» Баранов
We've been with Upstaff for over 2 years, finding great long-term PHP and Android projects for our available developers. The support is constant, and payments are always on time. Upstaff's efficient processes have made our experience satisfying and their reliable assistance has been invaluable.
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I worked with Upstaff engineers for over 2 years, and my experience with them was great. We deployed several individual contributors to clients' implementations and put up two teams of upstaff engineers. Managers' understanding of tech and engineering is head and shoulders above other agencies. They have a solid selection of engineers, each time presented strong candidates. They were able to address our needs and resolve things very fast. Managers and devs were responsive and proactive. Great experience!
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Хочу виразити велику подяку за таку швидку роботу по підбору двох розробників. Та ще й у такий короткий термін-2 дні. Це мене здивувало, адже ми шукали вже цілий місяць. І знайдені кандидати нам не підходили Це щось неймовірне. Доречі, ці кандидати працюють у нас і зараз. Та надать приклад іншим працівникам. Гарного дня!)
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Leaving a review to express how delighted I am to have found such a great side gig here. The project is intriguing, and I'm really enjoying the team dynamics. I'm also quite satisfied with the compensation aspect. It's crucial to feel valued for the work you put in. Overall, I'm grateful for the opportunity to contribute to this project and share my expertise. I'm thrilled to give a shoutout and recommendation to anyone seeking an engaging and rewarding work opportunity.

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FAQs about Responsive Design Development

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If you urgently need a verified and qualified Responsive Design developer, and resources for finding the right candidate are lacking, UPSTAFF is exactly the service you need. We approach the selection of Responsive Design developers professionally, tailored precisely to your needs. From placing the call to the completion of your task by a qualified developer, only a few days will pass.

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Undoubtedly, there are dozens, if not hundreds, of specialized services and platforms on the network for finding the right Responsive Design engineer. However, only UPSTAFF offers you the service of selecting real qualified professionals almost in real time. With Upstaff, software development is easier than calling a taxi.

How are Upstaff Responsive Design developers different? Arrow

AI tools and expert human reviewers in the vetting process are combined with a track record and historically collected feedback from clients and teammates. On average, we save over 50 hours for client teams in interviewing Responsive Design candidates for each job position. We are fueled by a passion for technical expertise, drawn from our deep understanding of the industry.

How quickly can I hire Responsive Design developers through Upstaff? Arrow

Our journey starts with a 30-minute discovery call to explore your project challenges, technical needs, and team diversity. Meet Carefully Matched Responsive Design Talents. Within 1-3 days, we’ll share profiles and connect you with the right talents for your project. Schedule a call to meet engineers in person. Validate Your Choice. Bring a new Responsive Design developer on board with a trial period to confirm that you’ve hired the right one. There are no termination fees or hidden costs.

How does Upstaff vet remote Responsive Design engineers? Arrow

Upstaff Managers conduct an introductory round with potential candidates to assess their soft skills. Additionally, the talent’s hard skills are evaluated through testing or verification by a qualified developer during a technical interview. The Upstaff Staffing Platform stores data on past and present Responsive Design candidates. Upstaff managers also assess talent and facilitate rapid work and scalability, offering clients valuable insights into their talent pipeline. Additionally, we have a matching system within the platform that operates in real-time, facilitating efficient pairing of candidates with suitable positions.

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Table of Contents

TOP 10 Responsive Design Related Technologies

  • HTML

    HTML (Hypertext Markup Language) is the fundamental building block of the web. It provides the structure and content for web pages, allowing developers to create the layout and format of a website. With its latest version, HTML5, developers have access to new features like semantic elements, multimedia support, and improved form controls.

  • CSS

    CSS (Cascading Style Sheets) is a language used for describing the presentation of a document written in HTML. It enables developers to control the visual appearance of web pages, including layout, colors, fonts, and animations. CSS3 introduces new capabilities like transitions, transformations, and media queries, which are essential for responsive design.

  • JavaScript

    JavaScript is a high-level programming language that enables interactive and dynamic elements on websites. It is widely used for client-side scripting, allowing developers to create responsive and interactive web experiences. JavaScript frameworks like React, Angular, and Vue.js provide additional tools and libraries to streamline development.

  • Bootstrap

    Bootstrap is a popular front-end framework that simplifies the development of responsive websites. It provides a collection of pre-designed components and templates, making it easier to create consistent and visually appealing user interfaces. With its grid system and responsive utilities, Bootstrap helps developers build mobile-friendly websites quickly.

  • jQuery

    jQuery is a fast, small, and feature-rich JavaScript library. It simplifies HTML document traversal, event handling, and animation, making it easier for developers to create interactive web pages. jQuery also offers plugins for various tasks, such as image sliders, form validation, and AJAX requests.

  • React

    React is a JavaScript library for building user interfaces. It allows developers to create reusable UI components and efficiently update and render them when data changes. React’s virtual DOM enables fast rendering, making it suitable for large-scale applications. It is widely used by companies like Facebook, Instagram, and Airbnb.

  • Responsive Images

    To optimize the performance of responsive websites, it is crucial to use responsive images. These images adjust their size and resolution based on the device’s screen size, ensuring that they look good on both desktop and mobile devices. Techniques like srcset, sizes, and picture element help developers implement responsive images effectively.

Pros & cons of Responsive Design

8 Pros of Responsive Design

  • Improved User Experience: Responsive design ensures that your website looks and functions well on all devices, providing a seamless and consistent user experience.
  • Increased Mobile Traffic: With the rise in mobile usage, having a responsive design can attract and retain more mobile users, leading to increased traffic and engagement.
  • Cost-Effective: Instead of maintaining separate websites for different devices, responsive design allows you to have a single website that adapts to different screen sizes and resolutions, saving you time and money.
  • Improved SEO Performance: Google favors mobile-friendly websites and considers responsive design as a ranking factor, which can improve your website’s visibility and search engine rankings.
  • Easy Maintenance: With a responsive design, you only need to update and maintain one website, making it easier to manage content, implement changes, and fix issues.
  • Higher Conversion Rates: A user-friendly and visually appealing responsive website can lead to higher conversion rates as visitors are more likely to stay on your site and complete desired actions.
  • Enhanced Social Sharing: Responsive websites are more likely to be shared on social media platforms, increasing your brand exposure and driving more organic traffic.
  • Future-Proof: Responsive design is adaptable to new devices and screen sizes that may emerge in the future, ensuring that your website remains compatible and accessible.

8 Cons of Responsive Design

  • Complexity: Implementing responsive design can be more complex and time-consuming compared to creating separate websites for different devices.
  • Load Time: Responsive websites may take longer to load on mobile devices due to the need to load all elements, potentially affecting user experience and bounce rates.
  • Design Limitations: Designing for multiple devices and screen sizes can impose constraints on the overall design and layout of your website.
  • Browser Compatibility: Ensuring consistent performance across different browsers and their versions can be challenging with responsive design.
  • Content Prioritization: Displaying content uniformly across devices may require prioritizing certain elements, potentially affecting the visibility and accessibility of other content.
  • Learning Curve: Developing responsive design skills may require additional training or resources for web designers and developers.
  • Optimization Challenges: Optimizing images and other media for different devices and resolutions can be more complex with responsive design.
  • Limited Control: Responsive design may limit your control over the user experience on different devices, as certain features or functionalities may not be fully optimized for all screen sizes.

Cases when Responsive Design does not work

Responsive Design is widely regarded as a best practice in web development, as it allows websites to adapt to different screen sizes and deliver an optimal user experience across various devices. However, there are certain cases where Responsive Design may not be the most suitable approach. Let’s explore some of these scenarios:

  1. Complex Data Visualization: Responsive Design may not be ideal for websites that heavily rely on complex data visualizations, such as intricate charts or graphs. Adapting these visual elements to smaller screens can lead to cluttered and hard-to-read displays, compromising the overall user experience. In such cases, it may be more effective to consider alternative design approaches, such as creating separate mobile versions or utilizing interactive elements.
  2. Performance and Load Time: While Responsive Design helps optimize content for different devices, it does not necessarily address the issue of performance and load time. Websites with extensive content or complex layouts may experience slower load times on mobile devices, affecting user engagement and satisfaction. In these instances, a dedicated mobile website or a progressive web app (PWA) can offer a more efficient and seamless user experience by reducing the amount of data transferred and enhancing performance.
  3. Unique Device Requirements: Some websites may have unique device requirements that are not easily catered to by Responsive Design. For instance, websites that rely on specific hardware features or functionalities, such as gyroscope sensors or camera integration, may require a native app rather than a responsive website. Native apps can leverage the full capabilities of the device, providing a more tailored and immersive user experience.
  4. Complex Interactions: In cases where websites heavily rely on complex user interactions, Responsive Design may not be sufficient to provide the desired user experience. Websites with intricate animations, drag-and-drop functionality, or advanced touch gestures may require a more specialized approach, such as developing a dedicated mobile app. This allows developers to leverage native features and frameworks that can handle complex interactions more effectively.
  5. Targeted User Experience: In certain situations, it may be necessary to provide a distinct user experience for different devices rather than attempting to deliver a consistent experience across all screen sizes. For example, an e-commerce website might want to prioritize different features or content on mobile devices compared to desktop devices. In such cases, it may be more appropriate to develop separate mobile and desktop versions of the website to cater to the specific needs and expectations of each device category.

While Responsive Design is an excellent approach in most cases, it is crucial to consider these scenarios where alternative strategies might be more suitable. By evaluating the unique requirements and constraints of your website, you can make informed decisions to ensure an optimal user experience on all devices.

Let’s consider Difference between Junior, Middle, Senior, Expert/Team Lead developer roles.

Seniority NameYears of experienceResponsibilities and activitiesAverage salary (USD/year)
Junior Developer0-2 years– Assisting senior developers in coding and testing tasks
– Learning and gaining experience in programming languages and technologies
– Debugging and fixing small issues in the codebase
– Collaborating with the development team on various projects
$50,000 – $70,000
Middle Developer2-5 years– Developing and implementing software solutions based on requirements
– Collaborating with cross-functional teams to design and deliver projects
– Participating in code reviews and providing constructive feedback
– Mentoring junior developers and assisting in their professional growth
$70,000 – $90,000
Senior Developer5-8 years– Leading the development of complex software solutions
– Designing and architecting scalable and efficient systems
– Mentoring and guiding the team in technical matters
– Collaborating with stakeholders to understand business requirements
$90,000 – $120,000
Expert/Team Lead8+ years– Leading a team of developers and coordinating their efforts
– Providing technical direction and guidance on projects
– Identifying and implementing best practices and development methodologies
– Collaborating with other teams and stakeholders to align technology strategy
$120,000 – $150,000

How and where is Responsive Design used?

Case NameCase Description
1. E-commerce WebsitesResponsive design development is crucial for e-commerce websites as it ensures a seamless shopping experience across various devices. According to a study by Statista, mobile e-commerce sales accounted for 54.8% of total e-commerce sales in 2021. By implementing responsive design, e-commerce websites can cater to the growing number of mobile shoppers, improving user engagement and increasing conversion rates.
2. News Publishing PlatformsResponsive design is essential for news publishing platforms to deliver a consistent user experience across different screen sizes and devices. With the rise of mobile news consumption, having a responsive design enables readers to access news articles easily on their smartphones or tablets. According to the Pew Research Center, 57% of U.S. adults often get news on a mobile device. Responsive design development helps news publishers reach a wider audience and retain readership.
3. Corporate WebsitesResponsive design is crucial for corporate websites as they serve as the digital face of a company. With responsive design development, corporate websites can provide a consistent brand experience across desktops, tablets, and mobile devices. This ensures that potential clients and stakeholders can access important information about the company, its products, and services, regardless of the device they are using.
4. Travel and Booking PlatformsResponsive design is highly beneficial for travel and booking platforms as it allows users to seamlessly search, book, and manage their travel plans from different devices. With the increasing use of smartphones for travel-related activities, responsive design development enables users to easily browse and book flights, hotels, and other travel services on their mobile devices. This convenience and flexibility contribute to a positive user experience and increased conversion rates.
5. Educational WebsitesResponsive design is important for educational websites to provide students, teachers, and parents with a user-friendly and accessible learning environment. With responsive design development, educational websites can adapt to different screen sizes, making it easier for students to access learning materials, participate in online courses, and collaborate with peers. This flexibility enhances the overall learning experience and promotes engagement in online education.

Soft skills of a Responsive Design Developer

Soft skills are essential for a Responsive Design Developer as they contribute to effective collaboration, communication, and problem-solving. These skills become even more crucial as developers progress in their careers. Here are the soft skills required for Junior, Middle, Senior, and Expert/Team Lead Responsive Design Developers:


  • Adaptability: Ability to quickly learn and adapt to new technologies and frameworks.
  • Attention to Detail: Paying close attention to the details while working on responsive design projects.
  • Time Management: Efficiently managing time to meet project deadlines.
  • Teamwork: Collaborating effectively with other team members to achieve common goals.
  • Communication: Communicating ideas and issues clearly to team members and stakeholders.


  • Problem-Solving: Identifying and resolving complex issues related to responsive design.
  • Leadership: Taking on leadership roles within development teams and guiding junior developers.
  • Critical Thinking: Analyzing problems from multiple perspectives to find the best solutions.
  • Project Management: Successfully managing multiple responsive design projects simultaneously.
  • Client-Facing Skills: Interacting with clients and understanding their requirements and feedback.
  • Collaboration: Working closely with designers and other stakeholders to ensure seamless integration of design and development.
  • Empathy: Understanding the end-users’ needs and designing responsive solutions accordingly.


  • Mentoring: Mentoring junior and middle developers and helping them grow their skills.
  • Strategic Thinking: Developing long-term strategies for responsive design implementation.
  • Conflict Resolution: Resolving conflicts within development teams and finding win-win solutions.
  • Client Relationship Management: Building strong relationships with clients and understanding their business objectives.
  • Quality Assurance: Ensuring high-quality standards in responsive design development.
  • Innovation: Driving innovation and introducing new techniques and approaches in responsive design.
  • Presentation Skills: Effectively presenting and pitching responsive design ideas to clients and stakeholders.
  • Decision Making: Making informed decisions based on data and project requirements.

Expert/Team Lead

  • Strategic Leadership: Leading the responsive design team and setting strategic directions.
  • Team Management: Managing and mentoring a team of developers, assigning tasks, and monitoring progress.
  • Business Acumen: Understanding the business implications of responsive design decisions.
  • Continuous Learning: Keeping up-to-date with the latest trends and technologies in responsive design.
  • Stakeholder Management: Effectively managing relationships with various stakeholders including clients, designers, and project managers.
  • Budgeting and Resource Allocation: Managing project budgets and allocating resources efficiently.
  • Risk Management: Identifying and managing risks associated with responsive design projects.
  • Strategic Partnerships: Building strategic partnerships with external agencies and vendors.
  • Technical Expertise: Demonstrating advanced knowledge and expertise in responsive design technologies and frameworks.
  • Change Management: Effectively managing changes in project scope and requirements.
  • Team Collaboration: Fostering a collaborative and inclusive environment within the responsive design team.

TOP 13 Facts about Responsive Design

  • Responsive design is an approach to web design that makes web pages render well on a variety of devices and window or screen sizes.
  • It became popular after Ethan Marcotte’s groundbreaking article “Responsive Web Design” was published in 2010.
  • According to StatCounter, as of October 2021, approximately 59% of all website visits worldwide are made from mobile devices.
  • Google has officially stated that mobile-friendliness is a ranking factor for search engine results. Therefore, implementing responsive design can improve a website’s visibility and search engine rankings.
  • A study conducted by Google found that 61% of users are unlikely to return to a website they had trouble accessing on their mobile devices.
  • Responsive design saves time and effort for website owners and developers since they only need to maintain one version of the website instead of creating multiple versions for different devices.
  • Responsive design is not only about adapting to different screen sizes but also about optimizing the user experience by providing easy navigation, readable content, and touch-friendly interfaces.
  • According to a survey by Adobe, 38% of people will stop engaging with a website if the content/layout is unattractive or poorly designed.
  • Responsive design can help reduce bounce rates, as it ensures that users have a positive experience regardless of the device they are using.
  • Studies have shown that the average attention span of website visitors is around 8 seconds. With responsive design, you can capture and retain the attention of users by delivering a seamless experience across devices.
  • A responsive design can contribute to increased conversion rates, as users are more likely to make a purchase or take a desired action when they can easily access and navigate a website on their preferred device.
  • Responsive design can help future-proof websites by adapting to new devices and technologies that may emerge in the future.
  • Responsive design is not limited to websites; it can also be applied to emails, ensuring that marketing campaigns are optimized for different devices and email clients.

TOP 13 Tech facts and history of creation and versions about Responsive Design Development

  • Responsive design is a methodology that aims to create websites that automatically adapt to different screen sizes and devices.
  • It was first introduced in 2010 by Ethan Marcotte, a web designer and developer.
  • Responsive design became popular due to the surge in mobile device usage and the need for websites to be mobile-friendly.
  • The term “responsive design” was coined by Marcotte in his influential article “Responsive Web Design” published on A List Apart.
  • The groundbreaking aspect of responsive design is the use of CSS media queries, which allow websites to dynamically adjust their layout based on the screen size.
  • Responsive design eliminates the need for separate mobile and desktop versions of a website, streamlining development and maintenance.
  • Google officially recommended responsive design as the preferred mobile configuration, boosting its adoption.
  • Responsive design improves user experience by providing a consistent and optimized browsing experience across devices.
  • The first version of the responsive design framework, Bootstrap, was released in 2011 by Twitter.
  • Responsive design allows websites to rank higher in search engine results as Google considers mobile-friendliness as a ranking factor.
  • In 2015, Google introduced the “Mobilegeddon” algorithm update, which prioritized mobile-friendly websites in mobile search results.
  • Responsive design has evolved to support a wide range of devices, including smartphones, tablets, laptops, and even smart TVs.
  • With the increasing popularity of responsive design, many frameworks and tools have emerged to facilitate its implementation, such as Foundation, Materialize, and Flexbox.

What are top Responsive Design instruments and tools?

  • Bootstrap: Bootstrap is a widely popular front-end framework that is known for its responsive design capabilities. Developed by Twitter in 2011, Bootstrap has been used by millions of websites since its inception. It provides a comprehensive set of CSS and JavaScript components that make it easy to create responsive and mobile-friendly websites.
  • Foundation: Foundation is another powerful front-end framework that offers a range of responsive design tools. It was created by ZURB in 2011 and has gained popularity for its flexibility and extensive customization options. Foundation’s grid system and responsive navigation features make it a preferred choice for many web developers.
  • Gridset: Gridset is a responsive design tool that allows designers to create custom grid systems for their websites. It provides a user-friendly interface for creating and adjusting grids, making it easier to create responsive layouts. Gridset also offers additional features like responsive typography and device-specific styles.
  • Responsive Design Checker: This tool allows web developers to test the responsiveness of their websites across different devices and screen sizes. It provides a simple interface where users can enter the URL of their website and select the devices they want to test. The tool then displays the website on each selected device, allowing developers to identify any responsiveness issues.
  • Sketch: Sketch is a design tool that has gained popularity among web designers for its responsive design capabilities. It offers features like artboards and responsive resizing, allowing designers to create layouts that adapt to different screen sizes. Sketch also provides plugins and integrations with other tools, making it a versatile choice for responsive design.
  • Adobe Dreamweaver: Dreamweaver is a widely used web development tool that offers a range of features for responsive design. It provides a visual interface for designing responsive layouts and offers tools for testing and previewing websites across different devices. Dreamweaver also supports popular front-end frameworks like Bootstrap and Foundation.
  • Viewport Resizer: Viewport Resizer is a browser-based tool that allows developers to test the responsiveness of their websites by adjusting the viewport size. It provides a toolbar with preset sizes for various devices, making it easy to simulate different screen sizes. Viewport Resizer also offers additional features like device rotation and pixel-perfect mode.
  • Responsive Images Generator: This tool helps web developers optimize images for responsive design. It allows users to upload an image and generate multiple versions of it at different resolutions. The generated images can then be used in responsive layouts, ensuring that the appropriate image is displayed based on the device’s screen size.

Hard skills of a Responsive Design Developer

Hard skills of a Responsive Design Developer:


  • HTML: Proficient in writing semantic HTML markup with good understanding of HTML5 elements and their usage.
  • CSS: Basic knowledge of CSS properties, selectors, and box model. Able to create simple layouts and apply styles.
  • Responsive Web Design: Familiarity with the principles of responsive design and ability to create responsive layouts using CSS media queries.
  • JavaScript: Basic understanding of JavaScript syntax and ability to manipulate DOM elements.
  • Version Control: Basic knowledge of Git or other version control systems for code collaboration and tracking changes.


  • Advanced CSS: In-depth understanding of CSS properties, selectors, and box model. Proficient in creating complex layouts and applying advanced styles.
  • Responsive Web Design: Ability to create responsive layouts using CSS frameworks like Bootstrap or Foundation.
  • JavaScript: Proficient in JavaScript programming and ability to write modular code using libraries or frameworks like jQuery or React.
  • Performance Optimization: Familiarity with techniques to optimize web page performance, such as image optimization, lazy loading, and minification.
  • Cross-Browser Compatibility: Knowledge of browser compatibility issues and ability to write code that works consistently across different browsers.
  • Accessibility: Understanding of accessibility standards and best practices for creating inclusive web experiences.
  • Testing and Debugging: Proficient in using browser developer tools and testing tools to identify and fix issues in web applications.


  • Advanced CSS: Mastery of CSS techniques, including CSS preprocessors like Sass or Less, CSS animations, and flexbox/grid layouts.
  • Responsive Web Design: Ability to create highly optimized responsive layouts from scratch without relying on frameworks.
  • JavaScript: Expertise in JavaScript programming, including knowledge of modern ES6+ features and proficiency in frameworks like Angular or Vue.js.
  • Performance Optimization: Ability to analyze and optimize web application performance using tools like Lighthouse or WebPageTest.
  • Cross-Browser Compatibility: Deep understanding of browser quirks and hacks to ensure consistent rendering across different browsers.
  • Accessibility: Extensive knowledge of accessibility guidelines and experience in implementing accessible designs.
  • Testing and Debugging: Proficiency in writing unit tests and using debugging tools to ensure the quality of web applications.
  • Responsive Images: Experience in implementing responsive image solutions, such as using srcset and sizes attributes or lazy loading techniques.

Expert/Team Lead

  • Advanced CSS: Mastery of CSS methodologies like BEM or SMACSS and ability to architect scalable and maintainable CSS codebases.
  • Responsive Web Design: Expertise in designing responsive layouts that adapt to various screen sizes and devices.
  • JavaScript: Deep understanding of JavaScript concepts, including functional programming, design patterns, and performance optimizations.
  • Performance Optimization: Ability to fine-tune web application performance through techniques like code splitting, caching, and resource prioritization.
  • Cross-Browser Compatibility: Extensive experience in handling cross-browser compatibility challenges and implementing graceful degradation.
  • Accessibility: Leadership in promoting accessibility practices within the development team and ensuring compliance with accessibility standards.
  • Testing and Debugging: Proficiency in setting up automated testing workflows and implementing continuous integration/continuous deployment (CI/CD) pipelines.
  • Responsive Images: Expertise in implementing advanced responsive image solutions, such as art direction and responsive image breakpoints.
  • Performance Monitoring: Knowledge of performance monitoring tools to track and analyze real-time web application performance.
  • Code Review: Ability to conduct thorough code reviews and provide constructive feedback to team members.
  • Project Management: Experience in leading and managing complex responsive design projects, including coordinating with stakeholders and prioritizing tasks.

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Our journey starts with a 30-min discovery call to explore your project challenges, technical needs and team diversity.
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