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Marc Farssac Busquets

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App Developer
I am a Senior Android Engineer with a decade of mobile development experience across consumer electronics, logistics and IoT. I enjoy turning ideas into robust, scalable ...
txema quintero

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Over 35 years of experience, handling various types of projects of varying complexity. Expert in technology integration and consulting. Systems administrator and multilin...
Pedro M

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Software Engineer | 10+ years Developing Software solutions | Mobile APPs, XR & AI | Flutter | Swift | Manufacturer Apps | Desktop Apps | Influencer Apps
Guillermo Sierra

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I’m a Barcelona-based Senior Front-end & Mobile Engineer with 9 years’ experience shipping React Native and React apps from zero-to-one and beyond. I’ve led green-field b...
Sara Kozinska

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Hi, I'm Sara Kozinska, a passionate software developer based in Barcelona with 17 years of experience in web and app development. I am an expert in WordPress custom theme...
Ali Jafari

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I'm a quick-learning Software/ML Engineer with 3+ years of experience, skilled in creating and delivering mid to advanced-level projects. I specialize in JavaScript, Pyth...

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Trusted by companies around the world

"Working with her was an absolute pleasure. From the start, her professionalism and ability to grasp our vision for the real estate website, social strategy, and complex 3D animation made us confident in her abilities. She handled the entire project portfolio seamlessly. We were most impressed by her clear communication and..."
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John @ Curated Digital Studio
Nov 26, 2025
"Ayomide transformed our marketing system. He built automated workflows, optimized our funnels, and set up a seamless email sequence that boosted engagement and sales. What impressed me most was his ability to simplify complex processes and deliver everything on time. I highly recommend him to anyone who needs real marketing..."
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joke @ stockho
Nov 25, 2025
"Awesome Engineer and love to work with him more and more. Excellent his leading skillset is also attractive."
Sven @ Sky Talent Management
Nov 25, 2025
"Amazing work! Yash delivered high quality work , well organised code structure. Timely delivered worked. I would definitely hire them again"
Dikshit @ Self
Nov 21, 2025
"Working with Bharath Vishnu was an absolute pleasure. He was incredibly responsive, understood our needs perfectly, and delivered exactly what we were looking for. He communicated clearly throughout the project, making the entire process straightforward and positive. Apart from this, he transformed and delivered my vision..."
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Sanwar @ Crocklytech
Nov 20, 2025
"Clarence is a great artist! There was some miscommunication from my end but she was always accommodative and helped me out a lot. I recommend her for any of your music needs."
Vaibhavi @ Self
Nov 17, 2025
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"I found an amazing designer and she's fast. I now send her my ideas and she transforms them into great design. The collaboration is fast, professional and easy. It feels like she is already part of our team."
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From the blog

Frequently Asked Questions

What does an App Developer do?

An App Developer is responsible for designing, coding, testing, and maintaining mobile applications for various platforms, such as iOS and Android. They work closely with clients to understand their requirements and translate them into functional and user-friendly applications. Key tasks include:

  • Writing clean and efficient code.
  • Collaborating with UI/UX designers for an optimal user experience.
  • Debugging and troubleshooting issues.
  • Integrating APIs and third-party services.
  • Staying updated with the latest industry trends and technologies.

How to Hire an App Developer in Barcelona, ES?

Hiring an App Developer in Barcelona involves a strategic approach. Start by defining your project scope and requirements clearly. Utilize platforms like Twine to access a pool of talented developers. Consider the following steps:

  • Create a detailed job post that includes your project goals, budget, and timeline.
  • Review portfolios and profiles to find candidates that match your needs.
  • Conduct interviews to assess their skills and compatibility.

In Barcelona, the tech scene is vibrant, so you will find a variety of skilled developers with diverse expertise.

How much does it cost to hire an App Developer in Barcelona, ES?

The cost of hiring an App Developer in Barcelona varies based on experience level:

  • Beginner: €20 - €40 per hour
  • Junior: €40 - €60 per hour
  • Mid-level: €60 - €80 per hour
  • Senior: €80 - €100 per hour
  • Expert: €100+ per hour

These rates reflect the competitive market in Barcelona, where skilled developers are in high demand, ensuring you can find the right fit for your budget.

What qualities set exceptional App Developers apart from the rest?

Exceptional App Developers possess a unique blend of technical skills and personal attributes that set them apart, including:

  • Strong problem-solving abilities and creativity.
  • Excellent communication and collaboration skills.
  • Attention to detail and commitment to quality.
  • Adaptability to new technologies and trends.
  • Proficiency in multiple programming languages and frameworks.

These qualities enable them to deliver high-quality applications that meet client needs and exceed user expectations.

How do you recognize the perfect App Developer in Barcelona, ES for your needs?

To recognize the perfect App Developer for your project, consider the following criteria:

  • Relevant experience in similar projects or industries.
  • A strong portfolio showcasing their best work.
  • Positive client reviews and testimonials.
  • Effective communication skills that align with your project needs.
  • Willingness to collaborate and adapt to feedback.

By assessing these factors, you can confidently choose a developer who will contribute to your project's success.

What are the key questions to ask in an App Developer interview?

Asking the right questions during an App Developer interview is crucial for evaluating their suitability. Key questions include:

  • Can you describe your development process from start to finish?
  • What programming languages and tools are you most proficient in?
  • How do you approach debugging and troubleshooting?
  • Can you provide examples of how you've handled project challenges in the past?
  • What strategies do you use to stay updated with industry trends?

These questions provide insight into the developer's expertise, problem-solving abilities, and suitability for your project.

What’s the difference between hiring a freelance App Developer and working with an agency in Barcelona, ES?

Hiring a freelance App Developer offers flexibility and often lower costs, as you deal directly with an individual. Freelancers typically have specialized skills and can adapt quickly to project changes. However, they may have limited availability and resources.

In contrast, working with an agency provides a team of professionals with diverse expertise, ensuring a more comprehensive approach to your project. Agencies may have higher rates but offer reliability, structured project management, and ongoing support. The choice depends on your project's requirements and budget.

What should be in an App Developer project brief / job description?

A well-crafted project brief or job description for an App Developer should include:

  • Project overview and objectives.
  • Specific features and functionalities required.
  • Target audience and platforms (iOS, Android, etc.).
  • Timeline and milestones.
  • Budget and payment terms.
  • Required skills and experience level.

This clarity helps attract the right candidates and ensures your project aligns with their expertise.

How do I hire an App Developer in Barcelona, ES on Twine?

Hiring on Twine is simple.

  1. Post a job with your project details, timeline, and budget.
  2. Browse portfolios of vetted App Developers and invite those who match your needs.
  3. Receive proposals and compare experience, pricing, and reviews.
  4. Communicate expectations, set milestones, and finalize the hire.
  5. Securely pay through Twine, ensuring protection for both parties. Twine connects you with top freelance App Developers, making it easy to find the perfect creative professional for your project.

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