Hi, I’m Chaminda Chanaka, a software engineer with 10+ years of experience designing and delivering SaaS platforms, automation systems, and cloud solutions. I enjoy turni...
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Hi, I’m Chaminda Chanaka, a software engineer with 10+ years of experience designing and delivering SaaS platforms, automation systems, and cloud solutions. I enjoy turni...
See MoreAbout I am a Co-Founder of Shenll Technology Solutions Pvt. Ltd (SHENLL), a development and consulting agency focused on enabling enterprises, startups, and established ...
See MoreI’m a senior software engineer with deep PHP expertise (Laravel, Symfony) and a track record of modernising legacy platforms, hardening developer tooling, and shipping re...
See MoreAI Engineer & Full-Stack Architect | Healthcare Data Scientist I am a Polyglot Engineer and Co-Founder of Aiskyra, where I architected a HIPAA-compliant RAG system curre...
See MoreI am a veteran Systems Architect with over 30 years of international precision across the Middle East, Africa, Oceania, and Southeast Asia. I’m a recognized pioneer in IC...
See MoreI am a Senior Data Engineer with extensive experience across diverse industries, currently optimizing data processes at Walmart, and resolving over 60 data incidents mont...
See MoreI am an experienced software engineer with over 22 years of expertise in application development, database administration, and data analysis. I have worked extensively wi...
See MoreHello! I'm Alex Emelianov, a data-focused professional with over 20 years of experience across financial services, software, and manufacturing. I optimize legacy SQL code...
See MoreHi, I'm Moses Morris, a Software Engineer, Data Engineer, and AI Specialist with 6+ years of experience, serving clients globally. I sit at the intersection of three t...
See MoreSenior Full Stack Engineer with 10+ years of experience building scalable web applications across TypeScript/JavaScript, MERN, PHP/Laravel, and Python. Strong focus on ba...
See MoreAs a Software Engineer specializing in AI-driven systems and Full-stack, eCommerce platforms, I build digital products that combine intelligent automation with seamless u...
See MorePassionate about software development, system engineering, and modern technologies. I have experience in website design, database administration, and system maintenance,...
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 Sql 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 based on research on US and European freelancers. Actual budget is set by you and agreed with your expert before any work begins.
ESTIMATED RANGE
$5,100 – $14,000
Full possible range for a mid-level Database Developer over 2–4 weeks
Common questions answered before you post a project.
A SQL Database Developer specializes in designing, implementing, and maintaining databases that use Structured Query Language (SQL). Their primary responsibilities include creating database structures, writing complex queries, optimizing database performance, and ensuring data integrity and security. They collaborate with other IT professionals to create efficient data storage solutions that meet business requirements. Additionally, SQL Database Developers are proficient in troubleshooting issues, conducting data analysis, and providing support for application development by ensuring that the database architecture aligns with overall system design.
Exceptional SQL Database Developers possess a combination of technical and soft skills that set them apart. Key qualities include:
These qualities not only enhance their work but also contribute to smoother project execution and better outcomes.
Typical day rates for Database Developers 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 perfect SQL Database Developer involves assessing several factors. Start by reviewing their portfolio to evaluate the quality and relevance of their previous work. Look for candidates with specific experience in projects similar to yours. During interviews, gauge their technical knowledge through practical questions and problem-solving scenarios. Communication skills are crucial, as they need to collaborate effectively with your team. Additionally, check for positive client feedback and reviews that speak to their reliability and professionalism. Ultimately, the right developer will align with your project goals and demonstrate a strong commitment to delivering results.
When interviewing SQL Database Developers, consider asking the following key questions:
These questions will help you assess their expertise and suitability for your project.
To hire a SQL Database Developer, start by clearly defining your project requirements, including the specific skills and experience you need. Consider the scope of the project, desired deadlines, and budget. Next, leverage platforms like Twine to post your job listing and reach a pool of qualified candidates. Review portfolios and resumes to assess their expertise and past work. Conduct interviews to evaluate their problem-solving skills and communication abilities. Finally, check references and feedback from previous clients to ensure that the candidate is a good fit for your project.
Hiring a freelance SQL Database Developer offers flexibility and often lower costs compared to agencies. Freelancers typically have lower overhead expenses and can provide a more personalized approach to your project. However, agencies usually have a team of developers with diverse skills, providing a broader range of expertise and support. Agencies may also offer project management services, ensuring deadlines are met and quality is maintained. The choice depends on your project's specific needs, budget, and the level of ongoing support you require.
A well-crafted project brief or job description for a SQL Database Developer should include the following elements:
Providing these details helps attract the right candidates and sets clear expectations from the start.
Hiring on Twine is simple.
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