I'm Javier García, a software and data engineer focused on building AI-powered SOC log analysis pipelines. I design and deploy end-to-end systems using LLMs, FAISS, RAG, ...
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I'm Javier García, a software and data engineer focused on building AI-powered SOC log analysis pipelines. I design and deploy end-to-end systems using LLMs, FAISS, RAG, ...
See MoreReliable and committed individual with a strong ability to learn and a passion for new projects and challenges.
See MoreI am a Front-End Developer with 3 years of experience building modern web applications focused on performance, usability, and user experience. I specialize in React and T...
See MoreFull-stack software engineer with 6 years of experience building and operating production systems used daily by thousands of people. I work across the stack—Python (Flask...
See MorePortuguese grown up in Barcelona. Living and working code and design since 2000's. Be smart, trust experience.
See MoreData Analyst and Software Developer I am a Software Engineer (14+ years exp.), and I help companies with their Data Analytics and scale their backend without the overh...
See MoreI am a web and application developer with hands-on experience building and integrating REST APIs, databases, and web solutions using technologies such as PHP, JavaScript,...
See MoreI’m an all-terrain programmer who never stopped programming and will continue programming until there’s no programming. I love solving complex problems across the stack a...
See MoreHi, I am Ángel Martínez Olivares, a Senior Unity Developer with 8+ years of experience shipping and scaling live mobile games. I have led technical initiatives for high-s...
See MoreHi, I'm Diego Barrales Castillo, a web developer with a passion for building clean, scalable digital solutions. I specialize in Angular, TypeScript, and modern front-end ...
See MoreHi, I'm Arnau Güell, a senior mobile developer with over 15 years of experience specializing in Flutter and AI technologies. I love building scalable applications with cl...
See MoreSoy una programadora web apasionada y creativa con casi ocho años de experiencia en desarrollo de aplicaciones web. Me enfoco en crear soluciones innovadoras y funcion...
See MoreWe have over 14,500 Developers who've worked in many different industries and cover various styles and skillsets.
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Reviews
“Working with Emmanuel was a great experience. He was professional, communicated clearly throughout the project, and delivered the TrendSphere eCommerce Solution on time. The quality of his work exceeded my expectations, and he was always open to feedback and quick to make any requested adjustments. I highly recommend...”
Forlan @ zenithsphere
Jul 28, 2026
“Omais is a highly skilled and reliable freelancer who did a fantastic job on my Web App project. I trusted him with complex technical tasks, including working directly within a Windows Server VPS environment, and he handled everything seamlessly. He is professional, efficient, and delivers great results. I highly recommend...”
Julio @ Two Brothers Flooring, LLC
Jul 13, 2026
“Gideon did a great job setting up and designing our Shopify store. He made the layout attractive, organized the products properly, and ensured the store works smoothly on both phones and computers. His attention to detail and support were excellent.”
Sterling @ Lesch Clothing
Jul 10, 2026
“Studying this web module made complex backend concepts completely clear. Instead of just reading theoretical documentation, examining the logic flow, database queries, and route configurations in this project showed me exactly how professional applications handle user inputs and system state”
CARPA @ CARPA
Jul 9, 2026
“Hello we are very satisfied from that work”
Tejal @ opirawebs
Jul 4, 2026
“I worked with Daniil Sereda on LiberSave, a fintech platform that includes a payment gateway and a voucher management system for physical and digital goods. During our collaboration, Daniil demonstrated strong technical expertise, professionalism, and a reliable approach to software development. He consistently delivered...”
Roman @ LiberSave
Jun 30, 2026

Clients Rate Twine Developers 5.0 / 5.0
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3–5 minutes. Tell us about your project, your timeline, and how you want experts to contact you.
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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.
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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
€2,700 – €7,300
Full possible range for a mid-level Developer over 2–4 weeks
Common questions answered before you post a project.
Developers are professionals who design, build, and maintain software applications and systems. They utilize programming languages and frameworks to create functional and user-friendly products. Their responsibilities often include:
In today's digital landscape, developers play a crucial role across various sectors, from tech startups to established corporations.
Exceptional developers possess a unique blend of technical skills and personal attributes, making them stand out in the competitive tech landscape. Key qualities include:
These attributes enable developers to not only complete tasks but also contribute to the overall success of projects.
Typical day rates for 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 identify the perfect developer in Spain for your project, start by evaluating their technical skills relevant to your requirements. Review their portfolio to assess the quality and diversity of their past work. Look for experience in similar projects or industries. Additionally, consider their soft skills, such as communication and teamwork, which are essential for successful collaboration. Conduct thorough interviews focusing on their problem-solving approach and cultural fit. Finally, check references or reviews to gain insights into their work ethic and reliability.
During a developer interview, asking the right questions can help gauge their fit for your project. Consider these key questions:
These questions will help you understand their technical capabilities and approach to collaboration.
Hiring a developer in Spain involves several key steps to ensure you find the right fit for your project. Start by defining your project requirements clearly, including the skills and technologies needed. Utilize platforms like Twine to access a vast pool of talented freelancers. Create a detailed job post that outlines your expectations, timeline, and budget. Promote your listing on social media or professional networks to attract more candidates. Finally, screen applicants thoroughly by reviewing their portfolios and conducting interviews to assess their skills and cultural fit.
Hiring a freelance developer and working with an agency in Spain both have distinct advantages. Freelancers offer flexibility, often lower costs, and direct communication. They can be ideal for smaller projects or specific tasks. On the other hand, agencies provide a team of professionals with diverse skills, ensuring comprehensive support and project management. They can handle larger or more complex projects more efficiently. Ultimately, the choice between a freelancer and an agency depends on your project scope, budget, and timeline.
A comprehensive developer project brief or job description should include the following elements:
A well-structured brief helps attract suitable candidates and sets clear expectations from the start.
Hiring on Twine is simple.
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