Database design Professionals & Consultants

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Database design Job Cost Overview

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

Upwork Database design Jobs Completed Quarterly

On average, 125 Database design projects are completed every quarter on Upwork.

125

Time to Complete Upwork Database design Jobs

Time needed to complete a Database design project on Upwork.

Average Database design Freelancer Feedback Score

Database design Upwork freelancers typically receive a client rating of 4.59.

4.59
Last updated: May 1, 2015
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  1. Tucker C.

    Tucker C.

    Web Application Developer

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

    Hello! I'm a web application developer experienced in HTML5, CSS3, Javascript, Backbone, jQuery, PHP 5.3/MySQL, and Java, among others. I love creating rock-solid quality code that's well commented, bug-free, and that works flawlessly on all browsers. I utilize the latest object-oriented analysis and design principals such as encapsulation, design patterns, and refactoring to make clean, reusable code. I LIVE for the feeling of just having demolished a tough programming challenge with a beautiful, elegant solution. I still make it a goal to read regularly on the latest programming technologies. I'm constantly improving, and I routinely teach myself APIs, frameworks, and even entire language depending on what the challenge calls for. I can also dig into even the most complex code bases to squash bugs or refactor. I'm friendly, cooperative, and encouraging, and I make sure I understand employer's and teammates' goals so we can do everything possible to achieve them. I can work independently and create solutions from concept to completion, or I can work with a team with specific design goals. I ask questions early and often so the product meets the design specs as closely as possible. Overall, I love the challenge and reward of programming, and would be delighted to work with you on your next project.

    $155.56 /hr
    1,260 hours
    5.00
  2. Pasqualino Ferrentino

    Pasqualino Ferrentino

    Machine learning, pattern recognition, image analysis, sys developer

    Italy - Last active: 10 hours ago - Tests: 17 - Portfolio: 1

    I am a computer scientist whose main skills are in the field of data analysis, pattern recognition, statistical software, machine learning and large scale system design and integration. I have developed systems using Neural Networks, Markov chains, Support Vector Machines in various applications: OCR, image processing, data analysis, text indexing and retrieval. I am also proficient in 3D image visualization using common off the shelf libraries and methodologies, either low or high level, like OpenGL, DirectX, VTK, Java3D. I understand and use common ray tracing programs. I understand image processing topics like segmentation, thresholding, classification. I have worked in the past in a 3d Face recognition European project. I know the OpenCV library quite well. In the field of "general programming" I have a good understanding of Databases, multi threaded applications, sockets, pipes, encryption (symmetric and asymmetric), compiler design, operating systems, low level data structure in memory and on disk, data integrity. I consider myself an expert in data structures and algorithms: trees, queues, lists, b-trees, hash tables; I use standard libraries like STL, Boost, Java generics. I have a good knowledge of SQL and data normalization however I have also used custom No-SQL databases like Datadraw, MapDB, Tokyo Cabinet, Zope. I know all the basic algorithms and templates used in every day coding; regarding data integrity and security. Compression (lossy and lossless), symmetric and asymmetric encryption, public certificates, I have worked with OpenSSL programming, encrypted web services, packet sniffers. I am proficient in all the common every day languages with an emphasis on C++ and Perl. But I can use: Java, Python, Visual Basic, C#, PLSQL, Delphi. I know all the Object Oriented Programming concepts and design patterns and I use them if the need arises, but I am also able to write object-free programs in C or functional languages (like Haskell or Scheme). I know modern version control systems like git and mercurial, even if I can use also older ones like Subversion or CVS. I know Windows programming and API quite well. I have used WPF and WCF to create desktop applications in Windows and web services. I have used Linux and Gui toolkits like Qt which are platform independent. I know XML, XSL, I have used several parsers like the MsXML or Xpath. I know how to validate a XML with a schema. I have worked with a team that handled thousands of XML documents relating to air crashes in a SQL server database. I am able to talk and write in English with fluency. If anything is not listed here either I have forgotten to list it or I can probably learn it quite fast, so don't hesitate in asking!

    $24.41 /hr
    6,682 hours
    4.97
  3. Andrey E.

    Andrey E.

    Web Scraping Expert and PHP Web Developer

    Russia - Last active: 1 day ago - Tests: 7 - Portfolio: 12

    I'm web scraping expert/full stack developer with 7+ years of commercial experience. I'm good problem solver holding M.S. in maths and computer science. Today I'm offering webscraping/php/javascript services as a freelancer. My main skills: • Web scraping, parsing, automation, data processing • Simplehtmldom, Goutte, Symfony Browser Kit, Cheerio, CasperJS, Regular Expressions, Xpath • PHP, JavaScript, Java, NodeJS, PhantomJS, LUA • HTML5, CSS3, LESS, Bootstrap Framework • MySQL, MongoDB, Redis • Memcached, ZeroMQ, ReactPHP • SocketIO, Websockets • REST, SOAP, XML, JSON • Matlab, Wolfram Mathematica • Jquery, KnockoutJS, BackboneJS, RequireJS • Prestashop, OpenCart • Experience working with APIs: Ebay, Spotify, Amazon AWS, Amazon MWS, Flickr, Facebook Graph, Vk.com, GitHub, Instagram and several others • Git, SVN • Apache, Nginx, Curl • Amazon AWS • Linux, Vagrant • Understanding of OOP principles and software design patterns • Teamwork experience My github account is https://github.com/256cats My blog: http://256cats.com/ Over the years I’ve developed a lot of web scrapers of different complexity mostly using PHP (simplehtmldom, browserkit) and NodeJS/PhantomJS (casperjs). Some were simple regex-based and others were complex distributed systems with multiple proxies and Amazon AWS support. Also I developed a wide range of websites using PHP, HTML, JavaScript, CSS and MySQL including several e-commerce websites (+ Prestashop, Opencart). I built sites both from scratch and using frameworks, developed custom modules and extended existing ones for my clients. I have experience in PHP/MySQL performance tuning. Last two years I was working as MMO game (Clash of Clans/Heroes of Might and Magic-like mechanics) logic/backend developer. I’ve implemented distributed message queues, realtime leaderboards with Redis, Mysql, PHP. Developed battle-related algorithms (game unit classes, attack/defend, shortest path, quadtree). Then I’ve done some frontend development, e.g. – developed embeddable javascript classifieds widget and fitness/health single page web application with realtime updates/notifications (HTML, CSS, JavaScript, Jquery, Knockout.js, MomentJS, REST, AJAX, Socket.io).

    Groups: Coding Champs

    $39.90 /hr
    156 hours
    4.98
  4. Vanco Pavlevski

    Vanco Pavlevski

    Experienced C/C++/C# and asp.net application and web developer

    Macedonia - Last active: 16 days ago - Tests: 2 - Portfolio: 2

    Over the last 3 years I have been developing with ASP.NET platform. I'm very experienced C# programmer, that can also use C,C++ and Visual Basic depending on the problem that needs to be solved. My strong background knowledge on working with database, SQL, stored procedures makes me the perfect candidate for database design and implementation. My knowledge in Artificial Inteligence and working with Neuron Networks may come handy when working on complex algorithms and problems. I also have experience in HTML5.0, CSS and Photoshop. So I'm familiar with web and application design.

    $11.11 /hr
    1,720 hours
    4.89
  5. Aaron Beavers

    Aaron Beavers

    Expert Network developer with experience in NLP and social media API

    United States - Last active: 3 days ago - Tests: 5

    I am a professional web developer well versed in PHP, Javascript, MySQL databases, and general web practices. I have worked with several small and large software companies on projects of varying sizes to completion. I am an expert when it comes to node.js, I am currently developing a large scale distributed processing frame work written the ground up in node.js, implemented utilizing the concept of artifical nerual networks, intended for the processing of unpredictable inputs( natural language, images, etc). every aspect,the webserver, the network protocol, and the database, are all being hand coded by my self. I am self educated, having studied several fields in mathmatics and computer science, some of which include: general set theory measure theory probability theory natural language processing artificial neural networks programming language theory I am a skilled problem solver, if there is a design, I can implement it, given the language you require is one I am well versed in.

    $16.67 /hr
    70 hours
    5.00
  6. Nale G.

    Nale G.

    Top Mobile Developer (iPhone / Android / Phonegap)

    Netherlands - Last active: 3 days ago - Tests: 3 - Portfolio: 1

    You think you have a brilliant app idea? Contact me. Not only magical skill to make it real, but also able to help you improve on your initial vision. Together, we can change the way the world breathes!!! Here's what you can expect from me, Multimedia - Capturing and displaying of pictures - Capturing and playing back Audio and Video Look and Feel: - Good looking user interface which is Apple’s Human Interface Guidelines compliant - UIKit based Animations to provide fun and engaging user experience - Orientation support and iPad specific interface customizations - Displaying of Maps to provide visual geographic context to your apps - Displaying charts and graphs to show trends or statistics - PDF and HTML rendering - Custom drawing Business Logic: - Persistent storage for database driven apps (a mini-db within the iOS app for offline work) - User login/register and data download and upload using webservices - Server push notifications to keep your users up to date - Location detection and related tasks - Enabling apps to run in background - Use of multiple-threads to keep user interface responsive - Robust validation and error handling to minimize bugs and crashes - Integration with RSS news feeds - Synchronization of local data with remote data - Barcode and QRCode scanning - Sending emails, SMS, or making phone calls Social networks for user login or content sharing - Facebook integration - Twitter integration - Linkedin integration Monetization - In-app purchase integration - Integration of advertising networks (eg. iAd, Admob, Adhwirl) - Integration with third-party payment processing systems Bluetooth support - Interfacing with external devices via Bluetooth communication Third party SDKs and web-services/APIs - Image editing/effects using Aviary SDK - Remote crash reporting using crashlytics.com - Scalable file storage using Amazon’s AWS S3 - Application usage analytics using flurry.com - Goole Places to lookup business around a location - Google Maps for navigation - Sending SMS via server using Twillio - Payment processing using Stripe and Paypal - Data sync using iCloud and Dropbox.com - Parse.com for scalable db/back-end platform Value-added services - Full support in setting up apps to be distributed via Apple’s iTunes store - Feedback and expert opinion to improve the usability of the apps - Beta version provisioning for client testing and milestones verification

    $55.56 /hr
    976 hours
    4.95
  7. Stefan Knoch

    Stefan Knoch

    Expert Web Developer and Software Architect from Germany

    Thailand - Last active: 5 days ago - Tests: 7

    I am a creative and enthusiastic oop web developer from Germany with extensive experience in cms, ecommerce and website developing by working more then 6 years full-time for advertising agencies around Austria and Liechtenstein. I am capable of designing and developing database systems, frontend/backend architectures and programming professional web 2.0 w3c conform, cross browser compatible and seo optimized websites. I am also very fast at getting into new systems and fixing even the hardest bugs. I have much experience in several web developing areas: - website programming: html, css, js (jquery), seo, cross browser, w3c - cms developing: php, oop, mysql - database designing - architectur designing and planning - ui concepting - performance optimizing (mysql database, sql, php, js, http) - linux server administration (apache, nginx, debian, ubuntu) Frameworks - Jquery - Smarty - Zend - CakePHP - Yaf - my own performance focused lightweight oop framework I love to produce beautifully oop code and optimize performance even in the smallest corners. Im a perfectionist and i want to make me and my client satisfied and happy.

    $33.33 /hr
    50 hours
    5.00
  8. Arens Myzyri

    Arens Myzyri

    Web and Database Developer.

    Albania - Last active: 1 day ago - Tests: 4 - Portfolio: 5

    I've long experience as web and database developer. I'm Specialized in PHP, mySQL,, Access, WordPress, Joomla, Magento, and E-Commerce platforms like: Shopify, BigCommerce, PrestaShop etc. I work very hard with great desire to make any project run successfully and I want the client to be satisfied with my work. One of my skills is performance. I work very fast. I apply only to project that I know how to do. If the client hires me I will make sure to finish the job much before of the end date with great quality. Thanks for visiting my profile Arens Myzyri

    $54.00 /hr
    0 hours
    4.93
  9. Yael Openheimer

    Yael Openheimer Agency Contractor

    Sales Department

    Uruguay - Last active: 06/12/2014 - Tests: 2

    Our main asset is our TEAM, no doubts. We are a group of passionate, innovative and VERY hard working guys that certainly love what they do and can not imagine ourselves other than doing what we do, the way we do and as a part of this team. Our team is composed with high skilled developers (yes you can call us geeks) eager to get into the latest technologies and use them to leverage the products we make for our customers. With a fun and motivating environment we work in a very professional and planned way, knowing that communication is crucial when working offshore, and meeting deadlines is the difference between success and failure, no matter how good your final product is. We also have a great creative team that makes our products not only behave like freaking advanced engineering machines, but also look like a piece of art. That's what we are, that's what you can expect from us and that's what we will be eagerly waiting to show you. . .

    Associated with: CodigoDelSur Agency

    $61.11 /hr
    0 hours
    5.00
  10. Anna Ignatenkova

    Anna Ignatenkova Agency Contractor

    High-quality services and work products

    Russia - Last active: 10 hours ago - Tests: 3 - Portfolio: 4

    I have 10-years experience of software development (mainly C/C++ programming in large IT companies). Working experience and education give me understanding of good code and software architecture design and allows to develop reliable and easy maintained applications and systems. In my freelance career I’m using the best practices and focusing on providing the best possible solutions in a reasonable timeframe. I am interested in participation in a project allowing to apply and improve my skills. I like to learn something new and participate in research.

    Groups: Application Developers Alliance

    Associated with: Prof-Approach

    $25.00 /hr
    2,413 hours
    5.00