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Hire experts in Sql

Post a project and get matched with Sql experts. Matched in 24 hours. No agency fees.

1
Post your project
Takes 3 minutes
2
Meet your expert
Within 24 hours
3
Launch your project
Flexible payment options
+14k more Sql experts on Twine
Bardia B.
Database Developer
★★★★★ 5.0
Besim I.
Database Developer
★★★★★ 5.0
Aleksandr M.
Database Developer
★★★★★ 5.0

Trusted by 10,000+ companies of all sizes

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Meet the experts behind high growth companies.

Every Database Developer's portfolio and application is manually reviewed by our Customer Success team. You only see vetted matches.

Available
Database Developer

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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Available
Database Developer

.NET, AI Chatbot, AI Data Labelling

About I am a Co-Founder of Shenll Technology Solutions Pvt. Ltd (SHENLL), a development and consulting agency focused on enabling enterprises, startups, and established ...

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Database Developer

I’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...

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Database Developer

AI 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...

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Database Developer

AI Data Labelling, AWS, Azure

I am a Senior Data Engineer with extensive experience across diverse industries, currently optimizing data processes at Walmart, and resolving over 60 data incidents mont...

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Database Developer

Amazon Web Services, AWS, Data Visualization

Hello! 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...

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Database Developer

2D Animation, 3D Design, Adobe After Effects

Hi, 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...

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Database Developer

Senior Full Stack Engineer with 10+ years of experience building scalable web applications across TypeScript/JavaScript, MERN, PHP/Laravel, and Python. Strong focus on ba...

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Database Developer

Bootstrap, CSS, Data Visualization

Passionate about software development, system engineering, and modern technologies. I have experience in website design, database administration, and system maintenance,...

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We have over 14,500 Database Developers who've worked in many different industries and cover various styles and skillsets.

Start your search

What companies hire Database Developers for

Projects that brands and startups post most often.

MVP build

End-to-end build of a v1 product, front-end, back-end, and deployment.

Build your MVP

Shopify storefront build

Theme dev, custom checkout, app integrations, and performance optimisation.

Build your storefront

API & integrations

Build and connect third-party APIs, payment, email, analytics, CRM.

Connect your APIs

AI feature integration

Add an AI/LLM feature to an existing product.

Integrate AI

Let's get more local

See which of Twine's top rated Database Developers are near you

Reviews

Trusted by companies around the world

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

5 star reviews

Clients Rate Twine Sql Database Developers 5.0 / 5.0

on average across 82 reviews

How it works

  1. 1

    Post your project

    3–5 minutes. Tell us about your project, your timeline, and how you want experts to contact you.

  2. 2

    Meet your expert

    Within 24 hours, you'll see a shortlist of vetted Database Developers matched to your project.

  3. 3

    Launch your project

    Flexible payments on your terms, bill experts directly or use the Twine vault for added security.

How pricing works on Twine

Transparent rates, no hidden markup, and a payment path for every need.

The quote is the number.Nothing added on top.

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.

No hidden markup

Pay direct.0% commission.

Prefer your own payment flow? Pay your expert outside Twine, incurring no commission fees. Most useful for ongoing or trusted relationships.

0% off-platform payments

Pay via Vault.Your money is protected.

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.

10% up to $10k · 5% over $10k

Estimate your budget

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.

Your project

Mid-level (3–5 yrs)
2–4 weeks

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

How we got here

  • Mid-level day rate: ~$510–$690/day
  • 2–4 weeks = 10–20 working days
  • Range: $5,100–$14,000

Twine vs. the alternatives

Frequently asked questions

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:

  • Strong problem-solving abilities to troubleshoot complex issues.
  • Attention to detail, ensuring data integrity and accuracy.
  • Proficiency in multiple database technologies and tools beyond SQL.
  • Effective communication skills for collaboration with teams.
  • Adaptability to evolving technologies and methodologies.

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:

  • Junior: 365 - 495 USD
  • Mid-level: 510 - 690 USD
  • Senior: 640 - 865 USD
  • Expert: 790 - 1,070+ USD

These are indicative ranges based on Twine project data. Final budgets depend on project scope and are agreed directly with your freelancer.

Estimate your cost using our calculator →

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:

  • Can you describe your experience with SQL, including specific projects you've worked on?
  • How do you approach database optimization and performance tuning?
  • What strategies do you use to ensure data security and integrity?
  • Can you provide examples of complex queries you have written?
  • How do you handle troubleshooting when database issues arise?

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:

  • A clear overview of the project and its objectives.
  • Specific technical skills required, such as SQL proficiency, experience with particular database systems, and familiarity with data modeling.
  • Details about the project timeline and deadlines.
  • An outline of deliverables and expected outcomes.
  • Budget constraints and payment terms.

Providing these details helps attract the right candidates and sets clear expectations from the start.

Hiring on Twine is simple.

  1. Post a job with your project details, timeline, and budget.
  2. Browse portfolios of vetted Database 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 Database Developers, making it easy to find the perfect creative professional for your project.

Ready to hire your next Database Developer?

Post your project and meet your expert within 24 hours. Over 45,000+ high growth companies that trust Twine.

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