Hi, I’m Santiago Marcano, a passionate full-stack web developer with over eight years of experience delivering robust web applications and dashboards. I love multidiscipl...
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Hi, I’m Santiago Marcano, a passionate full-stack web developer with over eight years of experience delivering robust web applications and dashboards. I love multidiscipl...
See MoreI am a software Quality Assurance Engineer with years of experience in ensuring the quality and reliability of applications. I have a passion for testing and a knack for ...
See MoreI’m a multidisciplinary software developer specialized in cross-platform application development. I have hands-on experience working in a technical consulting environment...
See MoreHi, I’m Krzysztof Rychlik—a data engineer and BI professional with 13+ years of experience in data architecture, engineering, and analytics. I design and deliver modern l...
See MoreHello! I'm Maryam Pashmi Nezakati, a senior data engineering and BI leader with 10+ years of experience delivering cloud-native, scalable data platforms across pharma, ba...
See MoreBased in Barcelona, Nou Barris, Spain, I'm a Database Developer expert. I take a clear, collaborative approach to every brief.
See MoreWe have over 14,500 Database Developers who've worked in many different industries and cover various styles and skillsets.
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Reviews
“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
“Leomer Romero was a pleasure to work with. He understood our requirements clearly, communicated well throughout the project, and delivered everything on schedule.”
Adonis @ Canva
Jul 13, 2026
“Working with Hematullah Hemat was an exceptional experience. He successfully designed and developed a comprehensive international educational website and database management system for Azmoon Azeraksh Educational International, delivering results that exceeded our expectations. His expertise in software engineering, web...”
Ghafoor @ Azmoon Azeraksh
Jun 1, 2026
“Chukwudi did a great job. The Customer 360 solution gave us visibility into our customers that we simply didn’t have before. By bringing together data from multiple platforms, we can now track customer journeys, identify high value customers, and make more informed business decisions. The quality of the work, communication,...”
Kassy @ Hemdi Digital
May 31, 2026
“⭐⭐⭐⭐⭐ “Since we started using the Avcera POS & Inventory Management System, managing our sales, stock, and daily operations has become faster and more organized. The system is user-friendly, reliable, and has helped us reduce inventory errors while improving customer service. We can now track sales and stock levels in real...”
Avcera @ Avcera Digital Technology
May 27, 2026
“Ssempebwa Allan was an amazing person to work with. He is an active listener, a great team player, and he ensures that work is delivered on time.”
SUDE @ RIM RECORDS UGANDA LIMITED
Apr 9, 2026

Clients Rate Twine Database Developers 5.0 / 5.0
on average across 8282 reviews
3–5 minutes. Tell us about your project, your timeline, and how you want experts to contact you.
Within 24 hours, you'll see a shortlist of vetted Database Developers matched to your project.
Flexible payments on your terms, bill experts directly or use the Twine vault for added security.
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
€2,900 – €7,800
Full possible range for a mid-level Database Developer over 2–4 weeks
Common questions answered before you post a project.
A Database Developer is a professional responsible for designing, implementing, maintaining, and optimizing database systems. They ensure data integrity, security, and performance by creating efficient data models and writing complex queries. Database Developers work with various database management systems (DBMS), such as MySQL, PostgreSQL, Oracle, or Microsoft SQL Server. Their duties may include:
Exceptional Database Developers possess a unique combination of technical skills and personal attributes. They exhibit strong analytical thinking, enabling them to solve complex problems effectively. Attention to detail is crucial, as even minor errors can lead to significant issues in data integrity. Additionally, strong communication skills help them collaborate effectively with team members and stakeholders. They also stay updated on the latest industry trends and technologies, demonstrating a commitment to continuous learning. Lastly, a proactive approach to troubleshooting and optimizing database performance sets the best apart from the rest.
Typical day rates for Database 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.
Recognizing the ideal Database Developer for your project involves evaluating both their technical skills and cultural fit. Look for candidates with proven experience in the specific database technologies relevant to your project. Assess their problem-solving abilities through practical tests or scenario-based questions. A strong portfolio showcasing previous work can provide insight into their capabilities. Additionally, consider their communication skills and how well they collaborate with your team. Personal traits such as adaptability, reliability, and a positive attitude are also vital for long-term partnerships.
During a Database Developer interview, ask questions that reveal both technical expertise and soft skills. Key questions include:
These questions will help you gauge their depth of knowledge and ability to handle real-world challenges.
To hire a Database Developer in Barcelona, start by defining your project needs and expectations. Post a detailed job listing on platforms like Twine, emphasizing the skills and experience required. Consider leveraging local tech communities and job boards to attract candidates who are familiar with the local market. When reviewing applicants, assess their portfolios for relevant experience and technical expertise. Conduct interviews to gauge their problem-solving abilities and communication skills. Finally, ensure you understand the local labor regulations and market rates.
Hiring a freelance Database Developer offers flexibility and often lower costs compared to working with an agency. Freelancers can provide personalized attention and may be more adaptable to your project needs. However, agencies typically have a team of professionals, offering a broader range of expertise and resources. They may also provide project management support and handle administrative tasks, which can be advantageous for larger projects. Ultimately, the choice depends on your specific requirements, budget, and desired level of involvement in the hiring process.
A well-crafted project brief or job description for a Database Developer should include the following elements:
Providing clear and detailed information will help attract qualified candidates who fit your project needs.
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