Full-stack developer with 3 years of professional experience building scalable .NET, React and SQL-driven applications across financial and e-commerce platforms.
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Full-stack developer with 3 years of professional experience building scalable .NET, React and SQL-driven applications across financial and e-commerce platforms.
See MoreExperienced Android Developer with 10+ years of expertise in designing, building, and maintaining OTT, streaming, and multimedia applications across mobile, additional ha...
See MoreComputer Engineer specialized in Artificial Intelligence, Machine Learning and Data Science, with a solid technical base in software development. Experience in data analy...
See MoreI am a Senior Product Designer with experience in Fintech and complex SaaS. I specialize in UX process and methodologies, integrating AI tools into the design lifecycle t...
See MoreHi, I’m José Alejandro Zaquinaula Ramón Barcelona. I’m a frontend software developer with a specialized focus on Frontend technologies and interactive 3D web applications...
See MoreI’m a Graphic and UX/UI and Web designer passionate about creating fluid, natural digital experiences that combine creativity with technology. I enjoy building design sys...
See MoreI am a senior full-stack web developer with 5+ years of experience turning complex logic into clean, accessible, and performant web and mobile products. I bring a combina...
See MoreMy goal has always been to be a good professional with clear pillars and fundamentals about programming, web development and web design. Therefore, I consider my occupati...
See MoreHi, I'm Pachi Badilla Roldán, a frontend-focused engineer with over a decade of experience delivering scalable, accessible web applications. I enjoy turning complex ideas...
See More• 8+ years of full-time professional experience designing, implementing, testing, delivering, maintaining & continuously improving software serving millions of users. • ...
See MoreI'm Kevin Qiu Lo, a junior frontend / web developer with hands-on experience in WordPress, Drupal, and modern projects using React / Next.js + CMS ecosystems. Grounded in...
See MoreI have over a 5 years of experience in designing, developing, and maintaining R/Shiny applications for data exploration, analysis and reporting. I also build (and mainta...
See MoreWe have over 14,500 Front-End Developers who've worked in many different industries and cover various styles and skillsets.
Start your searchProjects that brands and startups post most often.
End-to-end build of a v1 product: front-end, back-end, and deployment.
Build your MVPShort engagement to clear a backlog of bugs and stabilise a release.
Stabilise your releaseAdd LLM-powered features to your product, copilots, semantic search, or summarisation.
Integrate AIReact Native or Flutter app for iOS and Android from your existing spec.
Build your appDevelopment specialisms and the cross-functional roles you'll often hire alongside.
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Reviews
“I worked with William on developing a SaaS wedding planning platform, and he did an excellent job turning our ideas into a reliable and scalable product. He handled both frontend and backend development, including React & GatsbyJS interfaces, Node.js APIs, database integration, and performance improvements. William was...”
David @ Joy
Jul 29, 2026
“Nima is a highly creative and reliable professional with a strong understanding of visual storytelling, product design, and AI-powered video production. He communicates clearly, pays close attention to detail, and consistently turns ideas into polished commercial content. His creativity, professionalism, and ability to...”
relycom @ vertex
Jul 26, 2026
“Mark Scicluna is a great developer. I confidently endorse Mark’s capabilities and character.”
Theodore @ Rhizomenet Pty. Ltd.
Jul 24, 2026
“To Whom It May Concern, I am writing to express my sincere appreciation for Fawaz Al-Halabi and to highlight the exceptional experience of working alongside him. Working with Fawaz has been an absolute pleasure. He stands out for his deep professionalism, excellent technical expertise, and outstanding dedication to...”
khaled @ Mostaql
Jul 21, 2026
“Aryan was professional, responsive, and delivered exactly what we needed. The website was modern, fast, and mobile-friendly. Communication was excellent throughout the project, and the final result exceeded our expectations. I would definitely work with him again.”
Vivaan @ Portfolio
Jul 20, 2026
“⭐⭐⭐⭐⭐ 5/5 – Exceptional Experience Daniel Williams exceeded all of our expectations. From the very beginning, he demonstrated professionalism, creativity, and outstanding attention to detail. He took the time to understand our vision and transformed it into a modern, responsive, and high-performing website that perfectly...”
Adeji @ NexaGrowth Digital
Jul 17, 2026

Clients Rate Twine Front-End Developers 4.98 / 5.0
on average across 11741174 reviews
3–5 minutes. Tell us about your project, your timeline, and how you want experts to contact you.
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Transparent rates, no hidden markup, and a payment path for every need.
Agencies bury a 20–40% markup inside the retainer, you never see it. On Twine, you set the price and you see the platform fee as a separate, explicit line. No surprises at checkout.
Prefer your own payment flow? Pay your expert outside Twine, incurring no commission fees. Most useful for ongoing or trusted relationships.
Funds are held in escrow and only released when you approve the deliverables. If the work isn't right, your money doesn't move. 10% commission on payments up to $10,000, just 5% on anything above.
Pick the role, the experience level and how long you need. We’ll show you what similar projects have cost on Twine. It’s a guide, not a quote.
Estimates only. Actual budget is set by you and agreed with your expert before any work begins.
ESTIMATED RANGE
€3,000 – €8,100
Full possible range for a mid-level Front-End Developer over 2–4 weeks
Common questions answered before you post a project.
A Front-End Developer is responsible for creating the visual elements of a website or application that users interact with directly. They use languages like HTML, CSS, and JavaScript to build responsive, user-friendly interfaces. Their main tasks include:
Ultimately, Front-End Developers play a critical role in delivering engaging digital experiences that attract and retain users.
Exceptional Front-End Developers possess a blend of technical skills and soft skills that elevate them above their peers. Key qualities include:
These attributes contribute to their ability to create seamless and engaging user experiences.
Typical day rates for Front-End Developers in Spain vary by experience level:
These are indicative ranges based on Twine project data. Final budgets depend on project scope and are agreed directly with your freelancer.
To find the perfect Front-End Developer in Barcelona, begin by assessing their portfolio to evaluate the quality and diversity of past work. Look for developers who have experience with projects similar to yours and demonstrate an understanding of your industry. During interviews, gauge their problem-solving abilities and approach to collaboration. Ask about their development process and how they stay updated with industry trends. Additionally, consider seeking references or reviews from previous clients to ensure they have a track record of reliability and delivering results. The right fit will not only possess the necessary skills but also align with your project goals and company culture.
When interviewing a Front-End Developer, consider asking the following key questions:
These questions can provide insights into their technical expertise and their ability to communicate and collaborate effectively.
To hire a Front-End Developer in Barcelona, start by defining your project requirements, including the scope, objectives, and timeline. Next, create a compelling job listing that highlights essential skills, experience, and the type of projects they will work on. Utilize platforms like Twine to access a large pool of vetted freelancers. You can also network through local tech meetups or online forums to find the right talent. Once you have candidates, review their portfolios and conduct interviews to ensure they align with your vision and work style.
Hiring a freelance Front-End Developer typically offers more flexibility and cost-effectiveness, as freelancers often have lower overhead costs than agencies. Freelancers can provide a more personalized approach and direct communication, fostering a closer working relationship. However, agencies usually have a broader range of resources and a team of specialists, which can be beneficial for larger projects requiring diverse skill sets. They may also provide more structured processes and support, which can enhance accountability. Ultimately, the choice depends on your project size, budget, and specific needs.
A well-crafted project brief for hiring a Front-End Developer should include:
Providing this information will help attract the right candidates and set clear expectations from the outset.
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