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Top freelance T-SQL developers available to hire

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Freelance T-SQL Developer - Patrick Verbeeten
Freelance T-SQL Developer

Hi, I’m Patrick — a senior software architect and developer with over 25 years of experience, specializing in **.NET, Azure, TypeScript, and more**. I help developers understand how to **avoid problems** before they arise, with a focus on practical, sustainable solutions built on **code quality**, maintainability, and performance at scale. My work often involves improving architecture, introducing automated testing, CI/CD, addressing performance issues, and guiding developers toward more effective practices. I don’t just fix problems — I **teach you how to avoid them**, through a deep understanding of patterns, standards, and how to apply them in real-world code. Whether it’s untangling legacy code, improving deployment pipelines, or introducing better patterns, I help you understand the _why_ behind each change. And when you're facing an urgent technical challenge, I can step in and resolve it quickly and effectively. When it comes to code reviews, I take a different approach — not as a checklist of faults, but as a **conversation about quality and maintainability**. As my projects show, I don’t limit myself to one stack. I specialize in delivering **quick, creative solutions** to complex problems, then shaping them into solid, scalable foundations.

Freelance T-SQL Developer - Sai Lee
Freelance T-SQL Developer5.0 (157 reviews)

Languages: English only I am Senior Software Developer specialising in C#, .NET, .NET Core, SQL and mentoring junior developers. I'm from England, UK and I graduated from university in 2014 with a 2:1 BSC degree in Computing. If you need any help with anything, drop me a message and we can arrange a call and screen sharing session over Zoom.

Freelance T-SQL Developer - Govind Sahai
Freelance T-SQL Developer5.0 (53 reviews)

I am an expert C++, Python, Golang developer with over eight years of experience. I am highly talented and skilled in problem-solving and understanding complex and large codebase.

Freelance T-SQL Developer - Jon Davis
Freelance T-SQL Developer5.0 (46 reviews)

I've been doing development in software (primarily .NET) and on the web professionally since 1997. I've primarily focused on the Microsoft stack (C#, ASP.NET, MSSQL, IIS, etc), but complementing this I am also very strong in front-end development with HTML, CSS, and Javascript. My expertise does *not* extend to non-.NET server frameworks. I've worked with some of the other server frameworks but I'm not expert in them.

Freelance T-SQL Developer - Yonas Woldemariam
Freelance T-SQL Developer5.0 (58 reviews)

• More than 19 years of overall software development experience having expertise in all stages of the whole software development life cycle. • Microsoft Certified Solution Developer in .Net • Proficient in Object Oriented Analysis and Design(OOAD), Object Oriented Programming (OOP), ,design patterns, software development best practices, Agile development Methodology, and TDD • Excellent interpersonal, communication and organizational skills, productive relationships by working effectively with team members at all levels; easily adapt to new environments and with great potential to learn. • Have a great passion about technology and always try to keep up by reading tech blogs, checking out developer podcasts and webcasts, and attending developer training classes

Freelance T-SQL Developer - Sébastien Arnaud
Freelance T-SQL Developer5.0 (23 reviews)

Sébastien Arnaud is a French Software Architect, Engineer, and Inventor. With a passion for Data Science, in particular Machine Learning, General Game playing, Natural Language Processing and Text Analytics, Sébastien is an entrepreneur, who loves turning ideas into products, data into insights.

Freelance T-SQL Developer - Vyacheslav
Freelance T-SQL Developer5.0 (28 reviews)

High load web projects, bespoke software development, project management experience DevOps: Ansible,Vagrant, Chef PAAS & Cloud: (AWS, Amazon beanstalk, Redhat openshift, OpenStack, Digital Ocean) Continuous integration (with Jenkins / Bamboo) Client stack (javascript core, AngularJS, HTML5 apis, jquery) Pure JS stack (Javascript, AngularJS, Node.JS, mongo) NoSQL (mongodb) LAMP stack (PHP, MySQL, Linux) Windows stack (asp.net MVC, MSSQL 2000-2008) -> DevOps & Development inquiries: http://www.softasap.com/ -> Github http://bit.ly/mygithubprofile -> Ansible roles (MIT, BSD-3 clause) on a galaxy: http://bit.ly/ansible_roles -> Get in touch: check for available 30 minutes slot http://bit.ly/calendarappointment

Freelance T-SQL Developer - Adam Taylor
Freelance T-SQL Developer5.0 (12 reviews)

A UK-based Data Professional, I have over 20 years experience in Excel, Access, SQL and VBA, and have learnt a **ton** about data, reporting, automation, and how to make the systems I design work smarter to add *real* business value. The majority of my career to date has been in: -Microsoft Office products (Access, Excel, VBA programming) -Microsoft SQL (databases, stored procedures, SSRS, SSIS, PowerBI, Optimization) -PowerShell (script creation) -Data imports/exports -Azure DevOps, including Azure Data Factory Pipelines, Powershell, Chocolatey and more -Data Warehouse creation, systems integration -Creating useful and timely information systems (reports, dashboards) with data from one or multiple sources I have worked in a number of industries including Automotive Manufacturing, Oil/Gas/Nuclear, Engineering, Food Manufacturing, amongst others, and have extensive experience with MES, ERP and PLM system integration. I am passionate about what I do, and want to pass on some of the knowledge and expertise that I've acquired over the years. I've only just got started on CodeMentor, but really enjoy working with Clients from around the world to help them make sense of the issue they are trying to troubleshoot. If you're struggling with an issue in any of the areas I specialise in, you are very welcome to contact me to discuss your issue. Our initial discussion will be completely free of charge, to ascertain whether I can provide the support you need - and if you're happy to proceed, then we'll get started! If you need something more longer-term or a piece of work completing, we can discuss that, too. I've successfully completed a number of freelancing projects, both large and small, and am willing to negotiate my fee for these projects. I look forward to working with you! :-)

Freelance T-SQL Developer - Waqas Ali
Freelance T-SQL Developer5.0 (10 reviews)

Full stack developer with over 11 years of experience specializing in software development for international financial, marketing and educational industries. Strong in design and integration problem solving skills. More than 7 years’ experience in working with .Net technologies(C#, [Asp.net](http://asp.net/) Webforms, [As.net](http://as.net/) MVC, .NetCore, WebPI, WCF), Oracle and MS SQL SERVER Databases. I am also a mentor, I love teaching software programming, especially programming with C#. I also make programming tutorials for students. \*\*\* Full refund if the issue was not resolved \*\*\*

Freelance T-SQL Developer - Michael Sollenberger
Freelance T-SQL Developer5.0 (9 reviews)

I enjoy helping others and breaking down complex topics, My specialty is in <b>Microsoft PowerApps</b>. My primary development experience is in <b>C#</b>, <b>JavaScript</b>, and <b>TypeScript</b>. I also have experience with <b>React</b> and <b>Java</b>.

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Frequently asked questions

How long do T-SQL projects normally take?

The length of a project depends on many factors, including the scope of your project and the technical complexity of it. When you post a freelance T-SQL project request on Codementor, you’ll have the option to indicate when you’d expect the project to be completed. We suggest chatting with the interested developers to ensure both sides are on the same page. For more information on how to post a freelance T-SQL request on Codementor, check out our article.

How much does it cost to hire a freelance T-SQL developer?

We don’t charge anything when you post a freelance hiring request for T-SQL developers! You’ll have the chance to determine what the budget for your project is when you post the request. You’ll only need to pay the developer if you’re 100% satisfied with their work. Please know that Codementor charges a small service fee when a developer completes the job.

What makes Codementor T-SQL developers different?

We do a comprehensive technical and communications screen of all T-SQL developers at Codementor. Our network includes book authors, popular open source contributors, top Stack Overflow users and engineers at top tech companies. In addition, to continually ensure the quality of our freelancers, we regularly check in on existing T-SQL developers’ user satisfaction rates.

What happens if I’m not happy with the freelancer’s work?

As a platform, we strive to ensure you’re always happy with your T-SQL project’s results. If you’re unsatisfied with the results, you can choose to get a refund for the project. Additionally, you can contact our support team should you need any further assistance with your project.

For more answers to frequently asked questions, see here.

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