Top Upwork Freelancers

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  1. Sergii K.

    Sergii K.

    .Net/Java Developer | IT PRO

    Ukraine - Last active: 4 months ago - Tests: 8 - Portfolio: 5

    ★★★★★ Top .Net Developer ★★★★★ I am highly skilled developer in .Net stack of technologies with strong network/server administration experience which allow to build full and the best solution depending on customer requirements. I am one who says ‘I am glad I did’ rather than one who says ‘I wish I had’ on top of all my experiences with cut-edge technology. My skill-set: : Back-end: ✔ Java : Java EE, JCF, Multithreading, JDBC, Spring MVC, Hibernate ✔.Net : C#, ADO.NET/Entity Framework, ASP.NET MVC, RESTful API ✔ Grails / Groovy Front-end: ✔ HTML, CSS/Bootstrap ✔ JavaScript/JQuery/AngularJs Hosting: ✔ Windows Azure, GlassFish. IIS, Tomcat Additional background : ✔ Server technologies / AD DS, DNS, Hyper-V, IIS, DHCP, VPN, PowerShell. ✔ Computer science, Artificial Neural Networks, common math and physics. I hope own my company in future. Therefore I look forward to long-term relationship for projects from scratch/"have only specifications" stages.

    $50.00 /hr
    39 hours
    4.95
  2. Carlos C.

    Carlos C.

    J2EE/PHP5/SQL Developer. Linux SysAdmin. Brainbench certified

    Spain - Last active: 11/19/2014 - Tests: 6

    More than 7 years of experience coding in PHP using many SQL databases (MySQL/PostgreSQL/MSSQL). I have worked in many projects as a project leader. I feel very confortable in managing my work time to complete the schedule. Experience with Zend Framework; MVC and Singleton patterns. Expert in use of XML technologies, APIs, AJAX and coding using OO (Objects). Skills using design software (Fireworks, Photoshop, Gimp). GNU/Linux system's administrator for more than 6 years.

    $17.78 /hr
    26 hours
    4.99
  3. Paul R.

    Paul R.

    Perl programmer and API integration specialist

    Ireland - Last active: 11/26/2014 - Tests: 2

    Experienced programmer and developer specializing in API integration, web backends, file conversion, text and image processing, and desktop utilities. 18 years working in IT and publishing. Excellent communication skills. Deep understanding of complex data structures and algorithms. API Integration - Expert knowledge of API data formats and communication protocols: XML, JSON, Atom, HTTP, OAuth, REST, SOAP. - Ability to quickly comprehend API documentation. - Author of concise, well documented code that is secure, robust, modular and expandable. - Designer of functional and efficient web-based interfaces. File Conversion - Programmatically read, write and manipulate many common file formats, converting from one to the other: Excel, PDF, bitmap and vector images, HTML, XML, SVG, Illustrator, shapefiles, email message formats. Text and Image Processing - Tools to parse and analyze text: stemming, inflection, n-grams, categorize, summarize, search indexing. - Tools to manipulate images: crop, resize, scale, reduce file size, montage, animate. Desktop Utilities - All of the above as simple to use, one click desktop applications.

    $38.89 /hr
    67 hours
    4.98
  4. Michael Paulukonis

    Michael Paulukonis

    C#, ASP.NET, JavaScript Software Engineer

    United States - Last active: 08/14/2014 - Tests: 2 - Portfolio: 5

    I have have been programming professionally in C#, ASP.NET, JavaScript and VB6 (!!!) since 2003. I love to tease out solutions for unusual customer requirements, to untangle tangled legacy code, to solve problems, and to look back years later and see that it still works, and is still maintainable. I'm particularly interested in helping you with your wiki (PmWiki, Screwturn) or JavaScript * Programming - C#, JavaScript, jQuery, PHP * CMS - PmWiki, Wordpress, ScrewturnWiki * Web Design - HTML and CSS * Forms Design and Programming - Frevvo

    $55.56 /hr
    14 hours
    5.00
  5. Alexander C.

    Alexander C.

    Scala / Java / Haskell developer, Full Stack Engineer, Consultant

    Russia - Last active: 05/31/2014 - Tests: 2 - Portfolio: 2

    Java developer with 8 years of experience. Now also Groovy(2 years) and Scala(1.5 years) developer. Java: Hadoop, Nutch , Lucene/SOLR/ElasticSearch, Morphia(MongoDB ORM), parsers/crawlers(using Apache Httpclient, HtmlUnit and own microframework), Web MVC(Struts 1.x/Grails), Java Desktop Applicatins(Swing) / Applets, webservices (w. Restlet framework), RabbitMQ Java client, Riak Java Client Scala: PlayFramework 2.x, Lift, Akka, ReactiveMongo Groovy: Groovy scripts / Gant build scripts / Gradle Databases: SQL(PostgreSQL/MySQL), MongoDB, Riak, SOLR/ElasticSearch PHP scripts, linux(fedora/centos/ubuntu) server administration, SVN / Git, SEO methods/scripts, affiliate marketing. Check my blog(chepurnoy.org)/GitHub(kushti) also.

    $60.00 /hr
    1,026 hours
    4.99
  6. Aleksey Khazov

    Aleksey Khazov

    Embedded Soft | Desktop Application | Trading System | Web Development

    Russia - Last active: 2 months ago - Tests: 1

    Development of the system software for microcontrollers and digital signal processors (DSP) from Texas Instruments, ATMEL, Analog Devices. IDE: Code Composer Studio, Visual DSP ++, IAR Embedded Workbench. Development of the different periphery as ADC, DAC, RS-485, EEPROM, RAM, GPS, USB, PCI, real time clock (RTC) and others. Languages C and C ++. Development of software under Windows in environments C ++ Builder and Microsoft Visual C ++ (console and Windows Form.NET application) in languages C and C ++. Writing of drivers in WinDriver. Development of help systems in HTML Help Workshop, installers in InstallShield and Smart Install Maker. Creation the menu autostart of CD. Development of documentation - specification, instructions. Web programming (HTML, PHP, CSS, MySQL, Ruby). Programs: Microsoft Office, Visio, Adobe Photoshop, Corel Draw, 3D Max, Subversion and others. Development of automatic trading systems on the MQL 4 language (Development of Expert Advisors, Custom Indicators, Scripts, Libraries).

    $11.11 /hr
    180 hours
    5.00
  7. Shauna Klupfel

    Shauna Klupfel

    Certified Salesforce Advanced Administrator

    Australia - Last active: 4 months ago

    I am strongest in Salesforce implementation, training, customization and data management for small businesses. If you need Salesforce set up for your business I can help you get started by cleaning up your data, migrating your data into the new database and setting up processes and training for yourself and your employees. With four years experience managing Salesforce for two non profits called YWAM Townsville and YWAM Medical Ships, I have obtained the following skills: - Field and Custom Object creation and customization - Database de-duping and cleanup - Development of reports, dashboards, and processes to monitor data quality and integrity - Workflows and Automation - Data backup - Development of training plans, materials and documentation for database users

    $60.00 /hr
    70 hours
    4.72
  8. Yura Lukashik

    Yura Lukashik

    Symfony2 / Python / PostgreSQL / Node.js / ReactJS

    Belarus - Last active: 5 months ago - Tests: 3 - Portfolio: 1

    Over 5 years of experience in: - PHP - PHP Frameworks - Symfony2 - Yii - Python(Django, etc.) - PostgreSQL - API Building(FullRest, JSON RPC) - OOP Design Patterns Good knowledges in(over 2 years of experience): - JS - NodeJS - C/C++ - RabbitMQ - SCRUM - Testing(BDD) - Gherkin language - Functional testing - Unit testing - Continuous Integration - Codeship - TravisCI - Game Development

    $27.78 /hr
    354 hours
    5.00
  9. Istvan Jeno Veres

    Istvan Jeno Veres

    Web Developer

    Romania - Last active: 05/16/2014 - Tests: 1 - Portfolio: 1

    Over the past 2 years, I have been working on various projects at Babes Bolyai University, developing android apps, web pages using Python/Django framework and at Nokia Siemens Networks working in RoR. My competency lies in my ambition and ability to meet deadlines and take part in an Agile Software Development Process, gained through my internship at a large multinational company. I have experience in: Java, C/C++, Mathworks Matlab, Ruby, Ruby on Rails, Python, Django, HTML, CSS, JavaScript/jQuery, Linux, Databases/SQL

    $13.33 /hr
    513 hours
    5.00
  10. Muhammad Raffay

    Muhammad Raffay

    Sr. Server Support Engineer / Consultant

    Pakistan - Last active: 08/31/2014 - Tests: 2 - Portfolio: 5

    I am result-oriented IT Professional (having more than 7 years of Experience) focused towards company’s operational goals by keeping abreast with current and emerging IT technologies. Core competency attribute as the management experience of supervising team of skilled human resources responsible for smooth IT operations; nevertheless has the ability to work as team member or in individual capacity. Substantial Project Management aptitude of planning, designing, and implementing large-scale Enterprise Network / System Infrastructure, Security Operations Center (CCTV/Bio-Metric appliances), Windows Active Directory, Microsoft Messaging and Collaboration and Back office Application Services along with different emerging technologies as per organization need. Also, have the knowledge of deliver cost effective solutions which meets the business requirement. And, ability to conduct AS-IS, TO-BE and GAP analysis to enhance business processes. Some of my salient achievements: • Bachelors of Engineering in Information Technology (B.E. IT) • Cisco Certified [CCNA 640-802, CCNP Cisco ID: CSCO13826485] • Juniper Certified [JNCIA-EX, JNCIA-ER, JNCIS, JNCIP Juniper ID: JPR81316] • Microsoft Certified System Engineer (MCSE 2003, Coursework) • Corporate IT Security- (Computer Networks Security) Design Experience: • Active Directory 2003/2008 • Microsoft Exchange 2003/2007/2010 • Microsoft System Center Operations Manager 2007 • Firewall (Cisco ASA, PIX525, Sonicwall NSA 3500, Juniper SSG 140) • Cisco Routers 800, 1600, 1800, 2800 • Cisco Switches 2900, 3500, 4500, and Extreme BD6800, x450, Summit 48si, HP ProCurve 2810, 1800 Specialties • Data Center Development • Network infrastructure design • System infrastructure Integration • Point-to-Point Wireless Solution • Unified messaging • Custom software development • Risk management and data security • Disaster recovery planning • Structured Cabling Solutions

    $16.67 /hr
    37 hours
    4.99