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Object oriented design Upwork freelancers typically receive a client rating of 4.72.

Last updated: October 1, 2015
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Carlos Moran

Carlos Moran

Rails dev - Linux admin

Argentina - Tests: 19

Over the past 20 years I have been involved in several large projects including both software and hardware elements. I am looking to bring my expertise to businesses that have complex needs but don't have the volume to justify the expense of in-house talent. My skills include: - Project and team management: I have led web development projects from 3 to 30 people, using RUP, Scrum and homegrown methodologies. I know how to earn trust and gain the respect of collaborators, management, peers and clients. - Rails - I love the platform and have been working almost exclusively in RoR projects in the past 4 years for several different clients. - I prefer to use Thin, nginx, haml, jQuery, Semantic UI, Webistrano, MySQL or SQL Server, RVM and Rails 4.0 for new RoR projects. - I have experience consuming services like Twilio, SendGrid, UrbanAirship, and interfacing with payment gateways (usually Stripe and PayPal). - TCP/IP networking in general and the most popular protocols: HTTP/HTTPS, SMTP, POP3, SNMP, SSH. I also have a lot of experience troubleshooting connectivity and performance problems. I enjoy working with peers, but I can also work alone as developer and server administrator in small projects.

$47.78 /hr
34 hours

Jamie Queen

Jamie Queen

Software development professional

United States - Tests: 3

Software development professional with strong background in relational databases and object-oriented programming. Customer-focused, understanding that meeting the customer's needs is paramount to successful software design. Primarily interested in continuing to work with current and emerging technologies. Specialties:Java, Eclipse, Oracle, BIRT, SQL, HTML, CSS

$27.78 /hr
7 hours

Marcel Popescu

Marcel Popescu

Senior .NET Developer

Ireland - Tests: 6 - Portfolio: 4

I am a senior .NET programmer with over 20 years of professional experience, mainly in back-end C# applications using SQL databases - web services and Windows services. I am very familiar with SQL data modeling and normalization up to third normal form. One of my recent accomplishments was changing an error-prone, manual process that was taking three days each month into an automated, five-minute scheduled task using MS SQL Data Tools. Unit testing and test-driven design are very important to me - I wrote a book, TDD by Example, available on Amazon. I don't mind working on pre-existing code without tests but I generally insist on adding them to any code I change.

97% Job Success
$50.00 /hr
426 hours

Saul H.

Saul H.

Java/C++/.Net Software Engineer/developer/integrator/consultant

Venezuela - Tests: 3

Knowledge Areas and skills Custom Software Development, POS, intranet system, administrative systems and integration with intelligent software solutions consolidate, organize and centralize amount of information located in different divisions and departments, so that executives make decisions about payments, suppliers , prices, materials management, promotions, etc. Algorithms and programming skills, strong knowledge of C/C++ and Java. Strong knowledge of data structures, strings, sorting, arithmetic and algebra, combinatorics, number theory, backtracking, graph traversal, Algorithms for graphs, dynamic programming and computational geometry. Accounting area, experience in handling all movement of materials between stores and shops, all the accounting related to its retail. Point of sale Area, experience with integration between POS software and label printers, fiscal printers, barcode readers, fingerprinter and keyboards for point of sale. Oriented Object Programming and Low-level: exprienced in Java and C/C++/C#. QT libraries and Visual Basic. Scientific Programming: Matlab. IDES: Intellij Idea, Eclipse, Netbeans, Kile, Quanta. Servers: Apache-Tomcat. Functional Programming and AI: Haskell and Prolog. Database: MySql Oracle, Postgres, SQL Server and FoxPro. Web Development/Frameworks: Php, Struts, Vaadin, ZK, html and css.

$30.00 /hr
1,914 hours

Umar F.

Umar F.

C#, WPF, MVVM, WCF, ASP.Net, ASP.Net MVC, SQL Server, EF 4.0, Orchard

Pakistan - Tests: 12 - Portfolio: 10

7+ years of experience in software engineering. .Net technologies expert. I have worked in desktop, web and mobile application development. Desktop application development: MVVM Exprert. Solid experience in C#, WPF, WCF Crystal Reports, Windows Services, Microsoft Entity Framework, Sql Server, OpenCV. Web applications: Asp.Net, Asp.Net MVC, Orchard CMS, Java Script, Sencha Ext Js, Jquery, Ajax, Json, HTML 5, WCF, Telerik, Microsoft Sync Framework and Team Foundation Server(TFS) EPR Techno-Functional Consultancy experience using Epicor iScala Research and development projects in the fields of Artificial Intelligence, Computer Vision Domain knowledge of Finance, Hospitality, Medical and Automobile Industry Always interested to work in challenging environment. Contact me for satisfactory solutions

$15.00 /hr
245 hours

Maxim Bobuh

Maxim Bobuh

C++ developer

Ukraine - Tests: 3 - Portfolio: 4

The last 2 years I have mainly engaged in the development of applications using the programming language C ++. Recently actively use cross-platform library Qt, to create applications with GUI, database, WebKit. I also have experience in the following areas: basic data structures, STL, OOP, patterns Designing.

$5.00 /hr
15 hours

Giuseppe Valerio

Giuseppe Valerio

Software Engineer

Sweden - Tests: 10

I currently accept consultancies as architect or technical project manager, but still get my hands dirty into coding if the project is worth it. Specialized in handling, managing and tracking outsourced projects and communicating with remote-based teams with limited communication skills.

$33.33 /hr
2,633 hours

Max R.

Max R.

Flash Platform Developer

Ukraine - Tests: 4 - Portfolio: 3

Flash Platform Developer focused on Mobile development. Over 9 years of ActionScript programming including Flash/AIR platforms and Flex framework. Familiar with basic of iOS and Android platforms, and web-development standards. Have one year experience as Tech Lead in 5-person team. Good team player with understanding Agile standards.

100% Job Success
$22.22 /hr
6 hours

Steven C.

Steven C.

Software Developer and Website Designer

Canada - Tests: 5 - Portfolio: 2

Over the last 7 years I have designed, developed, and deployed a wide range of internet and desktop software using XHTML, JavaScript, AJAX, XML/XSLT,,, OOP, SQL Server, PHP, MySQL and Wordpress. I am looking for opportunities to design, build and deliver software as part of a bigger software project or as a complete package in itself. I like to manage my projects utilizing my strong communication, organizational and technical skills to deliver on time and on budget. I take great satisfaction in providing excellent service and solutions and I look forward to discussing any upcoming development needs you may have.

93% Job Success
$38.89 /hr
3,019 hours

Samiullah Khan

Samiullah Khan

IT Expert | Mobile | Web | Embedded | Avionics Developer

Pakistan - Tests: 8 - Portfolio: 4

Sami has years of software development experience in C, C++, Qt, Java, C#, WPF, WCF, .Net remoting, Mono, VB, VB.Net, HTML, CSS, JavaScript, ASP, ASP.Net, SQL and SQL Server. Since 2007 he has developed wide range of high quality and revenue generating software including real time applications, embedded software, web services, n-tire distributed applications, data acquisition software, database development and management, audio broadcast applications, software integrated electronics products and security software.

$35.00 /hr
65 hours