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. Vladimir Fedorov

    Vladimir Fedorov

    Flash & Flex developer

    Russia - Last active: 22 hours 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
    15,885 hours
    4.73
  2. Dorin Duminica

    Dorin Duminica

    Software Developer

    Romania - Last active: 2 days ago - Tests: 12 - Portfolio: 1

    Over the past 6+ years as a Delphi developer I have worked on database, desktop and web applications. I'm proficient in Delphi(version. 7 to 2010) and PostgreSQL. I have a very good analytical thinking and elegant taste for user interface. I also have experience with RTL, VCL(shipped, DevExpress, TMS), OOP, SQL. I'm constantly doing my best to improve my skills and learn new technologies.

    $38.89 /hr
    8,639 hours
    4.90
  3. Jesse Ratterree

    Jesse Ratterree

    Composer / MVC5 / PHP Symfony / SQL / AWS / .NET / NoSQL / C#

    United States - Last active: 1 day ago - Tests: 2 - Portfolio: 1

    I'm a composer and sound engineer with over 15 years experience playing in live bands and producing music for various projects. I have produced over 70 professional songs in 2014 alone. Just take a look at my feedback and you’ll quickly see why I’m one of the top 1% contractors on oDesk. I'm currently the 'go-to' audio guy for several developers who make iOS/Android games. I am one of the most affordable composers you will find. 

I'm also a full time freelancer. That means I'm not doing this on the side so you'll get the quickest turnaround imaginable. Published Games:

 Playground Wars – Glowdot Productions (music) iOS: https://itunes.apple.com/us/app/id658021920?mt=8 Android: https://play.google.com/store/apps/details?id=com.glowdot.PlaygroundWars Cognitile from Express Media (SFX / music / voice / levels)

iOS: 
https://itunes.apple.com/ie/app/cognitile/id583279641?mt=8&ign-mpt=uo=2 Android: https://play.google.com/store/apps/details?id=com.expressmedia.cognitile

 AquaDude from Vortex Gaming (SFX and Music) 
https://play.google.com/store/apps/details?id=com.vortexgaming.aquadude
https://itunes.apple.com/app/aquadude/id542501084


 RoboHero from BravadoWaffle (music/sfx)
 http://itunes.apple.com/us/app/robohero/id494449491?mt=8 (free download) 

WOMBI Detetcive from Wombi (music/sfx/voice talent)
Trailer: http://www.youtube.com/watch?v=PB3V48PkKSs&feature=plcp
 https://itunes.apple.com/app/id555605455

 https://play.google.com/store/apps/details?id=com.wombi.wombidetective World 1-1 from Headlights games (Music)
https://itunes.apple.com/US/app/id605385905?mt=8&ign-mpt=uo%3D4


 Melon Dash (unity/web game) (sfx)
http://www.melondash.net/Alpha/WebPlayer.html


 Fealty from Asmadi Studios (music only)
http://itunes.apple.com/us/app/fealty/id475252758?mt=8

 Swipa Dollar from Memfry Games (music/sfx)
https://itunes.apple.com/us/app/swipadollar/id555098379?mt=8


 Taking Shape from Darshin Studios (music/sfx)
http://itunes.apple.com/app/id540034505

 Diamond Gems from Balloon Island (music/sfx)
https://play.google.com/store/apps/details?id=com.balloonisland.diamondgems

 Fish It from Apptoyz (music) 
http://itunes.apple.com/us/app/apptoyz-fish-it/id543548989?mt=8

 Quiz App from Apptoyz (music/sfx)
http://itunes.apple.com/us/app/apptoyz-appquiz/id543869288?mt=8


 RhythmFourBeat from FourBeat (music/sfx)
http://camp-fire.jp/updates/view/1343

 SFX/Music Example: https://www.youtube.com/watch?v=XY2v154qVV8&feature=player_embedded




    $33.33 /hr
    2,967 hours
    5.00
  4. Julien G.

    Julien G.

    Interactive Art Director - Developer with +9 years experience

    United States - Last active: 22 hours ago - Tests: 2 - Portfolio: 1

    I'm an Interactive art director with +9 years experience working for major digital agencies from London, Paris, Miami and New york. I'm specialized in web design, smart phone application design, motion design, flash banner, logo and illustration. Expert in Photoshop, Illustrator, Flash, AfterEffect, HTML/CSS, PHP/SQL, JavaScript, WordPress. I can successfully handle your projects from the design to the development. you can review my portfolio here => www.jg-digital.fr

    $60.00 /hr
    185 hours
    4.93
  5. Cary S.

    Cary S.

    Websites, WordPress, Joomla, HTML, CSS, PHP, SQL, Graphics, Logos

    United States - Last active: 22 hours ago - Tests: 2 - Portfolio: 3

    I love helping people achieve success. I am a native of Colorado and I am in search of helping businesses and individuals meet their goals. I offer a variety of solutions for website design, social media, SEO, as well as marketing. Please let me know if you have any questions.

    Groups: CubeCart

    $33.33 /hr
    3,238 hours
    4.90
  6. Matt Durant

    Matt Durant

    Expert Software Developer, System Admin, and Business Manager

    United States - Last active: 22 hours ago - Tests: 8 - Portfolio: 1

    I have experience developing many projects utilizing a varied range of skills and programming languages, including but not limited to: .NET, C++, PHP, HTML, CSS, and Javascript. I have exposure to other languages, and I am not afraid to tackle a project in an unfamiliar language. My experience with other technologies includes MySQL, Microsoft SQL Server, Windows Server 2003/2008/2012, Hyper-V 2008/2012, and Linux (Debian-based distributions mainly, but I have experience with others). I have over 10 years of professional experience in server & network administration, software and website development, and business management. You can expect a commitment to detail and your idea when you hire me for your next project.

    $80.00 /hr
    15 hours
    4.97
  7. Md abdul muqit Z.

    Md abdul muqit Z.

    GIS/Remotesensing/Photogrammetry/Maping/Area Planning/Google Maps

    Bangladesh - Last active: 1 day ago - Tests: 2 - Portfolio: 6

    Consultant and expert in GIS and Remote Sensing with particular interest in spatial analysis, Mapping with ArcGIS, Landuse planning and Landcover analysis with Erdas Imagine, Satellite Image analysis, rectification, Geo-refferencing & Mosaicing, Contour DEM preparation, GIS application development, spatial database design, and modeling. Over 8 years of experience in the field of Geo-information Science & Earth Observation related to environment, land management, telecommunication, spatial and relational database design-development-management, analysis, monitoring and planning etc. I have strong expertise in Small & Large Area, both residential and commercial, Planning by AutoCAD Map 3D and ArcGIS, also expertise on Google Maps. During my professional period I have worked for Government, Non government, Multinational, and International organizations. I have expertise in ESRI (Desktop, Multiuser Geodatabase, Server), ERDAS (Imagine with all modules), AtuoCAD Map 3D, SAP and Oracle. My prime expertise is in both Spatial and Non-Spatial Database Management System. During working with many national, international and private organizations I was involved to teach GIS and Remote Sensing courses as a part of capacity building program to the organizations like SRDI (Soil Resource Development Institute), Voovis Informatics etc.

    $34.00 /hr
    328 hours
    4.85
  8. Daria G.

    Daria G.

    Back-end and front-end dev and photographer

    Ukraine - Last active: 6 days ago - Tests: 2 - Portfolio: 1

    I specialize on Ruby on Rails and front-end development. In spite of the fact I have got a degree in International Journalism and Translation, I worked as QA and IT Sales for total of 3 years (from 2008) and then moved to web development from Jan, 2012. I have performed both back-end tasks (from basic CRUD to making simple APIs or server scripts) and front-end (building static websites from scratch or developing views with twitter-bootstrap). I believe the experience is formed with the quality of the projects, you have delivered, and not with the years of sitting in front of the laptop. Specialties: ruby 1.9.2+, Ruby on Rails 3.0+, linux and MacOS X environment, unix-shell, Git, SQL (SQLite, MySQL, PostrgeSQL), HTML, Haml, CSS, Sass, Less, twitter-bootstrap, javascript, jQuery Here is link to my github profile: https://github.com/amseledka I do photographs and various design tasks in my spare time, as well as help my friends with Russian-Ukrainian-English translations. My flickr profile: http://www.flickr.com/photos/37859578@N06/

    $33.33 /hr
    1,793 hours
    4.61
  9. Preston H.

    Preston H.

    20+ years expert SQL database designer preferring MySQL and PHP.

    United States - Last active: 22 hours ago - Tests: 48 - Portfolio: 4

    I am one of the top database design specialists on Upwork. My sophisticated hand-crafted database design will save your organization significant time and money. I am a serious professional with over 20 years of experience as a programmer and database specialist. My emphasis has been on creating elegant SQL database design integrated with user-friendly front-end software (desktop and web applications). I have worked mainly as a database designer, programmer and database administrator for bioinformatics, biochemistry, molecular biology, and biomedical research applications. I also have extensive experience programming database-centric software (websites, web applications, desktop applications) for publishing, business, financial, personnel and other purposes. One of the things I enjoy most is creating database schemas which make sense for both programmers and non-programmers, designing with an eye toward flawless data integrity, maximum maintainability and optimal performance. I love crafting websites and web applications which perform with shocking speed. It makes for a better experience for users, developers and administrators. My expertly designed database systems - with well-written queries, intelligently chosen indices, and sensible caching strategies - can easily perform 10 to 100 times faster (using the same underlying hardware). My emphasis when working with clients is on their data and system usability, not specific trends or technologies. But in case you're wondering about some specifics, I strongly believe that the database data should be integrated with but also somewhat independent from a presentation/application layer. Data in the database should be easily accessible from one or many different applications built using one or multiple different technologies. Currently I favor PHP/JavaScript/HTML5 for web applications, RealBasic/Real Studio/Xojo for cross-platform applications [Mac OS X/Windows/Linux], Xcode for Mac OS X-only/iOS applications, Visual Studio for Windows desktop applications. I prefer using MySQL for back-end RDBMS, but I also use Oracle, Microsoft MS SQL Server, PostgreSQL and SQLite on a regular basis. If your data and information organization is already in great shape, and if you are satisfied with how your database-integrated software and website performs, then you probably don't need a high-end expert like me. I can make routine modifications, add to well-crafted existing systems, etc. But so can many other people. But if you're just getting started on a new system that you want done right, or if you suspect your database website programming strategy needs an overhaul, then I can get you on the right track in a short amount of time. * * * * * * * * Let me mention a few of the client-friendly policies and practices I apply with all my clients. I don't do these things to distinguish myself from other contractors. (I would hope they all do the same.) I do these simply because this is how I would want to be treated if I was the client: - You don't need to have your own web servers; I can host development and/or live production work on my own high-capacity servers. - I don't mind working on a client's servers, or doing dev work on my servers and transfering finished work to client's servers. - I do not charge clients any fees for hosting their websites or software systems, or for moving their websites or software systems elsewhere. - I provide clients with root log-in access to all the work I do for them; you are welcome to log into the server (cPanel, FTP, and phpMyAdmin) at any time and copy or back-up or move any work I do for you. - If I am working for you, all work product, all source code, all database design belongs to you. Always. Period. - I am happy to work with you and/or other programmers you enlist to work on a project; I am happy to pass off development work. - I do not provide mysterious "black box" solutions. I am happy to have you look under the hood at everything I do. You don't need to know anything at all about the inner workings of a system. Or you're welcome to ask about the most intricate details. - If we're developing a system from scratch, I prefer to do so using very widely-available technologies (PHP/MySQL/JavaScript/HTML5) which you can hire countless other people to work on if you decide to have other developers work on your system. - Do not be embarrassed to ask ANY question! I enjoy working with clients who have zero technical know-how in programming/databases/etc., partially because I appreciate their expertise in OTHER fields (real estate, art, medicine, law, science, civics, etc.) If you already know everything about databases and programming you probably wouldn't need me, would you?

    $81.00 /hr
    461 hours
    4.99
  10. Arthur G.

    Arthur G.

    C++ Expert with multifarious hands-on experiense

    Russia - Last active: 22 hours ago - Tests: 2

    Hands-on experience of 10+ years in software development. C++, C#, SQL, html and many other under Windows, MacOSX, Linux (mostly Ubuntu) and rtos. Strong Computer Science background. Please direct your attention to Employment History section of the profile for details. Thanks in advance! St. Petersburg University of Telecommunications graduate. Was teaching C++ for 7 years.

    $34.00 /hr
    135 hours
    5.00