SQL Database Administrators & Developers

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SQL (Structured Query Language) is a database computer language designed for accessing and manipulating databases in relational database management systems. On Upwork, the world’s largest online workplace, companies hire SQL developers to successfully complete jobs including providing support, troubleshooting and setting up/ managing databases.

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SQL Job Cost Overview

Typical total cost of Upwork SQL projects based on completed and fixed-price jobs.

Upwork SQL Jobs Completed Quarterly

On average, 449 SQL projects are completed every quarter on Upwork.

449

Time to Complete Upwork SQL Jobs

Time needed to complete a SQL project on Upwork.

Average SQL Freelancer Feedback Score

SQL Upwork freelancers typically receive a client rating of 4.67.

4.67
Last updated: May 1, 2015
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  1. Daniel Z.

    Daniel Z.

    Highly skilled API integrator, PHP (ZF) Coder and Project Manager

    Poland - Last active: 1 day ago - Tests: 7 - Portfolio: 6

    Goal: Project and develop high quality apps for your success. Profile: OOPHP & Zend coding, IT consulting and business analyst, project coordinator and manager, Other skills: Apache, Bind, SSH, bashscripting, Memcached, Github, Solaris, Oracle, MySQL, Radius, AD, expert knowlegde of many *ux and windows systems Advantage: Project and implementation of many web apps. Most of it projected and developed by myself using Zend Framework, Google API (youtube, gdata), social API (twitter, facebook). Some of it integrated with operating systems or AAA software (radius, ldap). Usually Design Patterns were used (like Template Method, Version of Control, DAO, Dependency Injection, Decorator and so on). Some application built upon a structure of web services (XML, REST, JSON), some using jQuery and AJAX. Tools and technologies: Apache, radius, bind, ldap, Zend Framework, XML, SOAP, Linux, Linux daemons, Memcached, Sockets, REST, JSON, Oracle, MSSQL, MySQL, Design patterns, MVC, SVN, BASH, PHPUnit, Xdebug, Unit testing, Google Youtube API, Google Gdata API, Google Maps API, Facebook API, PayU API

    $35.00 /hr
    1,615 hours
    4.98
  2. Sergey Y.

    Sergey Y.

    iOS / OS X verified developer

    Russia - Last active: 1 day ago - Tests: 12 - Portfolio: 10

    Over 5 years of iOS, MAC OSX and Android apps and games development experience with Objective-C, Swift, Java, C#, Unity3d. I have successfully deployed projects that involve integration of OCR (Optical Character Recognition), Parse.com, Testflight, Dropbox, Microsoft Live, Outlook, iCloud, In-App purchases, Push notifications, HandOff, image/video processing. I am also proficient with ASP.NET, JSON, XML, Python, Selenium and other technologies. My portfolio: http://indiemindie.com

    Groups: Coding Champs

    $44.44 /hr
    674 hours
    4.81
  3. Mikolaj R.

    Mikolaj R. Agency Contractor

    PHP Developer with Frond-End and JavaScript skills

    Poland - Last active: 14 days ago - Tests: 16 - Portfolio: 18

    I have worked as a PHP developer for about 7 years for now. My experience in working on a wide range of projects allowed me to work with large corporations like Adidas, Reebook and Unilever - that kind of clients are very demanding and expect performance to the highest level. Thanks to that cooperation I know how necessary thing is good communication. I worked in a team of developers as well as on my own, additionally, I have experience as a team leader. Worked on small projects and some bigger ones that took over a year to complete. I am very much familiar with the latest technologies such as: PHP 5x (OOP), MySQL 5x/Postgresql 8+ (usually with ORM if needed), MVC Frameworks, jQuery, Mootools, DHTML, CSS3, HTML5, Youtube/Facebook/Twitter API to integrate projects with social media. All my applications are SEO optimized to play good with google and easy to work with SEO companies.

    Associated with: Polcode

    $32.00 /hr
    2,428 hours
    4.70
  4. Aleksandr Tolstikov

    Aleksandr Tolstikov

    Drupal / PHP expert

    Russia - Last active: 1 day ago - Tests: 4

    Over 8000 hours on oDesk (only Drupal related). Highly motivated, goal-oriented, hands-on senior software engineer with extensive technical skills and over 15 years of experience in software development. - Expert knowledge of Drupal CMS; - In-depth knowledge of systems architecture and software design methodologies; - 10+ years of experience in web application development using PHP; - Extensive experience in relational database management systems, mainly with MySQL; - Experience in Linux systems administration; - Strong understanding of networking/Internet protocols and formats; - Experience in architecting, implementing and maintaining full-text search platforms;

    Groups: Bluehost Developers and Designers, Drupal

    $40.00 /hr
    8,396 hours
    5.00
  5. Konstantin S.

    Konstantin S.

    Senior Software Developer - ASP.NET MVC | AngularJs | Typescript

    Russia - Last active: 1 day ago - Tests: 8 - Portfolio: 13

    9+ years of experience as software engineer. In those years, I had a few good opportunities to work with big companies and to help a few start-up companies and other medium sized mobile and web agencies. Last few years I'm developing web solutions for automation of business processes using C# and ASP.NET MVC or Java with Play! Framework with various front end frameworks (e.g. jQuery, AngularJS, KnockoutJS, Typescript etc) My key skills and abilities include(not limited to) - Desktop WinForms, Silverlight, WPF, WCF ADO.NET, LINQ, Entity Framework Castle Project, AutoMapper Unit Tests (nUnit, xUnit) 3d party libs: ActiveReports, Telerik controls - Web (frontend) Javascript, CSS3, LESS, HTML5 jQuery, AngularJS, KnockoutJS, Typescript, Masonry Twitter Bootstrap, Foundation - Web(backend) ASP.NET, ASP.NET MVC, Play! Framework MS SQL, Mongo DB, Elastic Search, Memcached Microsoft Azure Cloud I always look forward to meeting new clients and helping them with realizing their imaginations and with full-filling their needs. I believe that is the best way to put myself in a good use for myself and clients. Thank you!

    $45.00 /hr
    7,642 hours
    4.72
  6. Vladimir Fedorov

    Vladimir Fedorov

    Flash & Flex developer

    Russia - Last active: 1 day ago - Tests: 6 - Portfolio: 29

    Last 7 years I work with flash and flex. I remember time then flash was on AS1 without any OOP )) I'm professional in AS1/2 and AS3, mxml. Also I love to work with video streaming, live video. I have great experience working with RED5, wowza, FMS. Aslo I can handle server-side of development. I know java, php, MsSQL, ASP.NET. Can well-format HTML (include HTML5) and javascript.

    Groups: Yahoo Web Hosting Designer

    $33.33 /hr
    15,860 hours
    4.73
  7. Robert B.

    Robert B.

    Umbraco / Sitecore / ASP.net / WPF/ SQL / Real Estate Sites

    Russia - Last active: 18 days ago - Tests: 1 - Portfolio: 16

    I have eight years experience in developing web applications using ASP.net, MSSQL, XSLT, Razor, jQuery, AngularJS and also Umbraco/Sitecore CMS websites for big companies and medium businesses. Over last 7 years I've done more than 40 Umbraco and Sitecore sites for customers in USA, Canada, Australia, Sweden, UK, Belgium, Denmark, Norway and Spain. I also have a team of developers who can assist me in any kind of .NET projects. Unique experience in creating and making successful real estate sites. I also have big experience in creating Windows client apps using WPF. I'm willing to communicate in any suitable time through Skype, GTalk or other preferred IM.

    $33.33 /hr
    2,768 hours
    4.98
  8. Alexander Kozlov

    Alexander Kozlov

    Top level professional Architect and SW engineer

    Russia - Last active: 28 days ago - Tests: 21 - Portfolio: 4

    Make things done! I'm a professional C/C++ developer with more than 12 years of experience. I have been working both for a companies from Fortune 500 list, and a small local companies. My core competency lies in the world of mobile applications, SaaS and PaaS, desktop software and games development. I love to do my work right and really enjoy being respected for the things i do.

    $55.56 /hr
    1,772 hours
    5.00
  9. Aleksey S.

    Aleksey S.

    Software Engineer

    Russia - Last active: 1 day ago - Tests: 10 - Portfolio: 2

    Over the last 5 years, I was involved in development of a wide range of software using Adobe Flex/AIR, Microsoft .Net, С++. My core competency lies in front-end web development via Adobe Flex and desktop application development via Adobe AIR, Microsoft .Net and C++. I have Master of Science in Applied Mathematics degree. I am am seeking opportunities to use my knowledge in real-world applications.

    $55.56 /hr
    3,803 hours
    4.94
  10. Eugene S.

    Eugene S.

    Java Web Architect

    Russia - Last active: 1 day ago - Tests: 2 - Portfolio: 5

    Hello, I am an experienced engineer capable to design, plan, lead and develop complex backend and web systems. I find and apply technical remedies to your business challenges. For over seven years I have been sharpening my skills in Java platform programming, optimization of data storage and processing using RDBSM, development process automation, various automated application testing. Taking the sum of your business goal objective I convert it into a realistic plan to reach it, presenting my opinion and ideas. I seek for engineering challenges and projects that make real users happier. I specialize in developing application backend with Java, Spring, modern RDBMS and 3rd party APIs reuse. Some other tools/libs I use in my work: MySQL/PostgreSQL/Oracle, jQuery, Angular, Twitter Bootstrap, Git. My previous experience also includes: Grails Framework, IBM WebSphere ESB, Swing.

    $44.44 /hr
    4,011 hours
    5.00