Top Upwork Freelancers

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  1. Siarhei Kirpichonak

    Siarhei Kirpichonak

    Java, liferay, OpenClinica, EDC, Clinical Trials

    Belarus - Last active: 7 days ago - Tests: 3 - Portfolio: 6

    I'm involved in software development during last 9 years. I have good abilities and I'm looking for Java and liferay projects. Skills: Scala (Lift, Play), Akka, Java (Spring, Spring Web MVC, Lucene, Compass, Struts, GWT, JPA, Hibernate, Toplink, JAXP, Castor, Ant, Maven), Java EE (EJB, JSP, Servlets, JMS), RDBMS (PostgreSQL,MySQL, Oracle), (X)HTML/CSS/Javascript, XML/XSLT/XPath, PHP, GNU/Linux

    $30.00 /hr
    1,322 hours
    4.90
  2. Navdeep S.

    Navdeep S.

    Linux Administrator, AWS, Chef, Ansible, DevOPS,Docker

    India - Last active: 3 days ago - Tests: 7 - Portfolio: 4

    I am a professional System Admin with lots of experience in AWS,Cloudformation, Chef, Opsworks, Jenkins, Ansible, Docker, Vagrant, monitoring and everything in between. I have lots of experience in managing tomcat, Java, Rails, python and php applications. I've helped many companies with cloud migration and automations. I help startups to fill in the gap for Devops position. My goal is to help companies to streamline the operations so they can focus on the core business. I am very much an expert in following technologies: 1. Expert in Cloud management platform like Rightscale, Scalr, Heroku, Amazon Ec2, PhpFog... 2. Expert with complex configurations of Apache, Nginx, Varnish for high traffic websites with load balancers. 3. I've thorough knowledge of MTA's like Postfix, Exim, Qmail, Sendmail, zimbra. 4. I've tons of experience with Iptables based firewalls APF and ConfigServer for securing Linux servers. 5. Expert in setting up cloud infrastructure on Amazon (AWS) Rackspace 6. Servers will be ready in minutes, using Chef Ansible Docker 7. Get your servers monitored, using: Nagios Icinga Gangila Cacti Munin 8. Version control system setup, using: Git Subversion(SVN) 9. Virtualization Expert in: Xen Vmware OpenVZ Expertise in installing/configruing control panels like Cpanel, Plesk, DirectAdmin, Webmin, Virtualmin...

    $33.33 /hr
    6,789 hours
    4.84
  3. Vlad M.

    Vlad M.

    C#, ASP.NET MVC, JavaScript developer

    Russia - Last active: 11 days ago - Tests: 3 - Portfolio: 1

    Over the last 7 years, I have successfully completed various web based development projects using ASP.NET, MS SQL Server, XML, Ajax. KEYWORDS: Communication skills, business analysis, system analysis, C#, ASP .NET, SQL, LINQ, jQuery, JSON, NodeJS, HTML5, JavaScript, OOP, Design Patterns, HTTP, CSS, XML, SOAP, MySQL, MVC, MS SQL Server, .Net Remoting, Serialization, Windows.Forms, Microsoft Office.

    $36.00 /hr
    1,158 hours
    4.83
  4. Haris L.

    Haris L.

    Senior developer, software architect

    Bosnia and Herzegovina - Last active: 18 days ago - Tests: 2

    I am senior sysadmin/developer with extremely "deep" and "wide" knowledge and understanding of IT platforms and solutions. I have 20+ years of experience working in IT industry including, system and networks administration, software architecture and development as well as IT systems design and implementation, both Linux and Windows based platforms. For last 10+ years my focus was on opensource based platforms, frameworks and software, so following are some of my experiences: - WEB and desktop based software/services architecture and development using many different languages: c, php, perl, python, javascript, html/css, java, vb/vba, vfp... and frameworks; zend, django, express... - sysadmin of different linux flavors (centos, debian, redhat, suse...) - implementation and support of different opensource software platforms: Asterisk/FreePBX VoIP, vTiger CRM, Kannel/PlaySMS SMS marketing services... - design, implementation, tuning and maintenance of PostgreSQL and MySQL RDMBS - design and development of WEB and desktop opensurce GIS/GPS solutions (GeoServer, PostGIS, OpenLayers, OSM...) - lecturing and training both IT professionals and regular users - IT projects management In addition to above, I am also experienced in working cooperatively and effectively with people from a wide range of nationalities asI was engaged in several national wide projects financed and supported by UN/UNDP/UNESCO and WB/IFC.

    $33.33 /hr
    1,214 hours
    4.64
  5. Vision E.

    Vision E.

    .Net/SharePoint Consultant / Developer / Architect

    Australia - Last active: 1 day ago - Tests: 1

    I am Australian Based IT Professional. My specialized focus is in Software Development & Consulting. My dynamic approach to software development provides me with the business advantage in delivering quality and reliable services at a sensible cost. Along with my extensive technical skills set, I have excellent communication and business analysis skills. I have worked extensively with private and corporate businesses, government departments and non-profit organizations throughout Australia and Globally. Technology Skill-set: - Microsoft SharePoint 2007/2010/2013 - Office 365 - Microsoft.NET (C#, VB.NET, ASP.net) - Frameworks (MVC, Entity Framework, AngularJS, Knockout) - Databases (SQL Server, MySQL, Oracle) - Micosoft BI (SSIS / SSAS / SSRS) - Frontend (HTML, JQuery, CSS) - Opensource (PHP, MySQL, Word Press, Joomla, Drupal, OS Commerce, Magento, Open Cart) - Mobile Development (iOS, Android) - Project Management - Dynamics CRM

    $50.00 /hr
    1,682 hours
    4.64
  6. Vadim C.

    Vadim C.

    MEAN / Mobile Senior Developer

    Czech Republic - Last active: 1 day ago - Tests: 2 - Portfolio: 5

    Few words about me: I have big experience (more than 12 years) in Web Development using - NodeJS (SailsJS, ExpressJS), AngularJS, Bootstrap - PHP 4/5 (CodeIgniter), - MySQL, - MongoDB And 3 years in Mobile app development for iOS & Android using - CoronaLabs (Lua), - Phonegap - Sencha Touch 1.x. My latest jobs: - App for Financial Traders, - Mobile-wallet, - Billing services, - Apps for Restaurants / Small business automatization, - Mobile learning apps(games), - T-Mobile, - Nurofen (Europe) - Pepsi (PepsiMini, PepsiOMG projects), - IKEA(marketing projects), - Microsoft(Xbox marketing projects), - DriftGames, - Expedia, - Panadol, - Wingman project for companies Sunsilk, myspace.com, Cosmopolitan - Disney web projects - CBA game project for the CMMW Bank and more…

    $25.00 /hr
    2,760 hours
    4.50
  7. Rashmi P.

    Rashmi P.

    Around 9 Years of experience in Java,J2EE including Flex and AngularJS

    India - Last active: 2 days ago - Tests: 2 - Portfolio: 3

    Over 8 years of experience in Java/J2EE/Flex technologies and has expertise in full time development of scalable, multi-tier web applications with entire life cycle management. Skills: - Java, JSP, Servlets, AJAX, Struts, Spring 2.5, JDBC, Hibernate, SQL, Tomcat , JBOSS , Jasper Reports, - AngularJS - CSS, JQuery, Javascript , Grunt , Gulp , NodeJS - Oracle, MS-SQL Server, PL-SQL, MySql - Eclipse, NetBeans - SVN - Flex - sound knowledge of eBay APIs

    $11.11 /hr
    3,983 hours
    5.00
  8. Terence B.

    Terence B.

    Software Engineer | Neural Networks | DSP | Java,C/C++,Matlab

    Philippines - Last active: 18 days ago - Tests: 4

    My expertise is centered on designing and developing intelligent and adaptive applications using the techniques of Neural Networks and Digital Signal Processing. I have also developed several web automation projects using java (J2SE and J2EE). I can also develop firmware and software applications in C/C++. Below is the summary of the skill set I have and the programming languages I have used. Skill Set - Digital Signal Processing - Image Processing - Artificial Intelligence (Neural Networks) - Embedded Systems Development - Control Systems - Robotics and Automations - CAPTCHA Analysis - Optical Character Recognition(OCR) - Web Automation Programming Languages - Java ( J2SE , J2EE and J2ME) - C/C++ - Visual Basic - Matlab

    $40.00 /hr
    4,188 hours
    5.00
  9. Vitaliy Dyachenko

    Vitaliy Dyachenko

    Full stack (ASP.NET, JavaScript, T-SQL) developer

    Ukraine - Last active: 1 month ago - Tests: 10 - Portfolio: 3

    Hello, I am Vitaliy from Ukraine (UTC+2) I am highly organised IT professional with solid experiences in developing and team leading. I am proud to possess a long record of achieving the desired outcomes of projects, on-time and always within the best quality. There are the projects for one of TOP 5 auditing company in USA, one of the biggest bank in USA and lieder in pest control industry of USA. But I have as well a lot of successful finished project for SND companies (financial, commercial, banks web applications and ect). There I my portfolio are only few of the web applications that I've developed (some of them under NDA). My first goal is to be meet your needs and deadline and to help you as much as I can. I believe that my strong points are punctuality and diligence. Listed below are my experience and skills: - .Net (C#), ASP.NET Web Forms and MVC, WPF, Windows form; - WCF, WebAPI; - JavaSript, JQuery, Knockout, Kendo UI, AngularJs, ExtJs; - CSS, Html; - SSRS, MS SQL Server 2005-2012; - ORM: EntityFramework, LinqToSql; - BPM (Business Process Management); - TDD, UnitTest of JS and C# code; - OOP, DDD; - SOLID, DRY, KISS, YAGNI; - Development methodologies: Agile (Scrum, Kanban), Waterfall. As extra prove about my skills you can see list of passed tests here on upwork. Thank you in advance for your time and consideration. I look forward to work with you soon.

    $38.89 /hr
    1,312 hours
    4.99
  10. Siva Kumar Epari

    Siva Kumar Epari

    Expert Drupal Developer

    India - Last active: 3 days ago - Tests: 4 - Portfolio: 2

    For the past 5 years have been involved in projects which used Drupal, PHP, Python, jQuery & MySQL. Also was associated with NGOs, startups & SMEs. Most of the projects are handled by me from end-to-end which include project planning & client communication. I have also experience in Configuration management using puppet, saltstack, Shell scripting, Linux Server management, CVS(SVN, Git) management, cloud deployments by Openstack, docker & Hadoop programming.

    $50.00 /hr
    1,953 hours
    3.97