SQL is a declarative programming language that is used in many relational databases. The specific syntax of SQL may vary a little from database to database, but the relevant concepts are mostly the same. However, there is a difference between knowing these concepts of SQL and actually being able to write sound, efficient, and proper SQL statements ensuring stability, reliability, and performance of databases.
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SQL is a declarative programming language that is used in many relational databases. The specific syntax of SQL may vary a little from database to database, but the relevant concepts are mostly the same. However, there is a difference between knowing these concepts of SQL and actually being able to write sound, efficient, and proper SQL statements ensuring stability, reliability, and performance of databases.
If you are specifically looking for a MySQL database administrator, please refer to our MySQL Database Administrator Job Description Template.
Finding a great SQL developer starts with a perfect job ad. This article will provide a job description and ad template that you can tune to your needs while searching for the best SQL developer for your team.
Copy this template, and modify it as your own:
Copy to Clipboard{{Write a short and catchy paragraph about your company. Make sure to provide information about the company’s culture, perks, and benefits. Mention office hours, remote working possibilities, and everything else you think makes your company interesting.}}
We are looking for a SQL developer who will be responsible for designing databases and ensuring their stability, reliability, and performance. You will also work other developers optimizing in-application SQL statements as necessary, and establishing best practices. You will help solve all database usage issues and come up with ideas and advice that can help avoid such problems in the future.
Read a list of great community-driven SQL interview questions.
Read them, comment on them, or even contribute your own.
Toptal is a marketplace for top SQL developers, engineers, programmers, coders, architects, and consultants. Top companies and start-ups choose Toptal SQL freelancers for their mission-critical software projects.
See Their ProfilesFreelance SQL Developer
Jonas is an SQL/ETL developer and data scientist, and for the past few years, he's worked at Exellys—a top Belgium consultancy company—mainly with insurance and private banking companies. As an SQL developer, Jonas has automated financial reporting for a national bank and built a data quality framework along with multiple dashboards, and as a data scientist, he's analyzed customer behavior and financial transactions using machine learning.
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Matthew has over 15 years of experience in database management and software development, with a strong focus on full-stack web applications. He specializes in Django and Vue.js with expertise deploying to both server and serverless environments on AWS. He also works with relational databases and large datasets.
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Duy has 16+ years of software development experience using Microsoft's technology stack, primarily .Net. He builds high quality and high-performance back-end systems and creates web applications with good UX using modern frameworks like Angular or React. He's proactive and results-oriented with a love of not only writing, but also removing code to ensure efficient, stable, and flexible software is delivered within the projected scope and budget.
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Vedansh is a senior software engineer at HackerRank and has 5+ years of experience in writing scalable, maintainable code in Rails and Python. He has built apps that are being used by 9 million+ developers around the world. He strongly believes in TDD and communicates really well and has worked with teams of different sizes across the globe. He also comes with a strong background in freelancing with various startups in the valley.
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James has been an independent consultant for 25 years employing a wide range of technologies and languages. He is passionate about software, consistently upgrading his skills and staying on top of new technologies while leading teams, conducting JADS, and giving presentations.
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With over a decade of experience and millions of users served, Sergii brings a deep understanding of software development principles and best practices to any project. His specialties include JavaScript/TypeScript, Node.js, React, Vue.js, D3.js, and many more.
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Currently, Juan is a Ph.D. candidate a the University of Buenos Aires, researching the subjects of AI, NLP, and social networks. He has over a decade of professional development experience under his belt. For the last few years, he’s been immersing himself in various types of data science projects and loving every minute of it. Juan relishes taking on data problems, building prediction models, and learning state-of-the-art techniques.
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Rui has over 12 years of experience working with the .NET environment, including ASP.NET, MVC.NET, WCF, SQL Server, SQL Server reporting services, Power BI—and more recently ML.NET. He's the type of person who thinks of a difficult challenge as an opportunity to expand his knowledge and strengthen his analytical and problem-solving skills. Rui is also someone with strong ethical values who thinks transparency and communication are vital.
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Alptug is an ambitious problem solver who believes that solid and close communication with the customer is the key to delivering exceptional software. He is a full-stack Java, Ember, and React developer. One of his recent career highlights was the design and development of a front-end framework on top of Ember.js to enable fast and high-quality application delivery by different software development teams.
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Donald has a wealth of experience—ten plus years with Oracle Database, five years with PostgreSQL/SQL and other databases, and five years with Python development. Recently, he’s been working with Django, Linux Shell, JavaScript, HTML, among others. Environment-wise, Donald has worked with global, multicultural development teams, has AWS/GCP experience, and is equally comfortable with agile and waterfall methodologies.
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Adam architects and develops database and BI solutions without any unnecessary complexity that are efficient to develop, can be completed within aggressive timelines, and are easy to understand, maintain, and expand. His preferred environment includes MS SQL Server, SSIS, and SSRS. He has 20+ years of experience and a 100% project success rate - no failures!
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