Top Upwork Freelancers

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  1. Ruslan I.

    Ruslan I.

    Experienced Android applications developer, Java and C++

    Russia - Last active: 18 hours ago - Tests: 5 - Portfolio: 6

    Hello! For the past four years, I have developed many applications for Android smartphones and tablets using Java and C++. Some of my applications are published on Google Play and some links to them are available in my portfolio. Other applications were developed under NDA. All of my oDesk projects are related to Android. I am strong in UI, network communications, multithreading, SQLIte, image processing, video and sound recording and playback, geo-location, Android NDK, in-app ads and purchases and many other skills. Also, I am highly experienced in software architecting, developing, testing, deploying and supporting, working with source code of Android OS. I am familiar with the following technologies: SVN, CVS, Mercurial, Git, HTML, XML, SQL, JSON, Objective C, Windows software development, Linux, GNU GCC, FFmpeg, etc. With respect to my education, I have got a diploma of engineer with specialization in Information And Measuring Technologies And Devices, Ufa State Aviation Technical University, Russia. My overall experience in software development is about 15 years. Thank you in advance for your time and consideration!

    $30.00 /hr
    1,933 hours
    4.87
  2. Yaroslav L.

    Yaroslav L.

    PHP/Joomla/Drupal/Laravel/Twitter Bootstrap developer

    Ukraine - Last active: 18 hours ago - Tests: 7 - Portfolio: 7

    Technically skilled and accomplished IT Professional is looking for challenging position as PHP Programmer where my skills and knowledge will be utilized. - Five years of professional experience as PHP programmer - Excellent team player with positive attitude - Strong presentation and organizational skills - Possess effective command over written and verbal communication skills - Great experience in web development and content management systems - Possess good time management and organizational skills - Career oriented, hard working and ability to handle multiple tasks - Quick learner and ability to learn new concepts

    $10.00 /hr
    921 hours
    5.00
  3. Antonio J.

    Antonio J.

    Senior .NET Developer and Project Manager

    Portugal - Last active: 5 days ago - Tests: 1 - Portfolio: 13

    I'm a seasoned Senior .NET Developer and Project Manager. I've been Developing Web Based Applications and Websites for the last 15 years, in both small and large companies. I'm proficient not only in several Development tools, but also in Database Design, Administration and Functional & Technical Analysis. In order to complement my technical skills I've also acquired Project Management skills, that help me plan, organize and control small and Large Development Projects. My Technical skills can deliver a job well done, I work on a daily basis in .NET, Jquery, BootStrap, Jquery, VB.NET, C#, Colfusion, SQL 2005/2008, Javascript, HTML, XML, XSL, XSLT, VB6, ASP and VB.NET. However I've also worked with PHP, MySql, Metatrader, VBScript, Access and several other technologies. The broad range of skills and technologies I've gathered in the past years, is the key to provide a very good work.

    $28.89 /hr
    1,817 hours
    5.00
  4. Robert C.

    Robert C.

    TIBCO Consultant & E-Commerce Architect

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

    Good Day and thank you for taking a moment to read my profile! I started working in IT about four years ago as a technical support representative for Simple Helix, a Magento specialist web hosting company. From there, I had the opportunity to spend a year as a Network Analyst for a local, carrier class, ISP before moving on to a position as a Linux Systems Engineer with a Magento development firm. In the present, I work as an Applications Engineer with a focus on the TIBCO stack, most notably AMX, BusinessWorks, EMS, and SilverFabric. I have a very strong background in Linux/Unix administration and have worked extensively with CentOS, Red Hat, and Debian. I've worked with networks from a physical perspective, as a NOC Technican, as well as logical perspective troubleshooting complex application issues. Over the past few months I've taken the opportunity to learn to code in Java and I've recently attended Red Hat training for JBoss EAP 6. I'm a CPTE (Certified Penetration Testing Engineer) and would happily pursue projects as an E-Commerce Architect, Systems Engineer, TIBCO Engineer, JBoss Administrator, entry-level Programmer, or entry-level Ethical Hacker. I am available for new jobs immediately outside of US business hours.

    $33.33 /hr
    474 hours
    4.86
  5. Evgeny S.

    Evgeny S.

    Senior Software Engineer

    Russia - Last active: 18 hours ago - Tests: 4 - Portfolio: 6

    I am an independent software engineer with a very broad range of development skills and technologies. I most enjoy working in small innovative teams and with individual decision makers to help grow their ideas into mature and robust software systems based on modern technological foundations. I'm also not a stranger to big software companies, and I can be a reliable team member as well as a small group project architect/leader when needed. I have experience with the following technologies: - C++, Python, JavaScript, C#, Java - Nginx, Gunicorn, Gevent, Flask, Django, jQuery, Node.js, Apache. - MS SQL, DynamoDb, Amazon SDB, MySQL, Redis, NoSQL. - Linux, Amazon EC2, SQS, SNS, S3, RabbitMQ. - Win32 API, HTML5, Android, NDK, GTK, WinForms I'm also eager to extend my experience in cutting edge technologies and programming languages like Golang, Erlang, Nim, Rust, Haskell... I am looking for the opportunity to design and build a system from the ground up for you!

    $50.00 /hr
    2,345 hours
    5.00
  6. Shibly K.

    Shibly K.

    PHP / C# / MySql / MSSql / Yii / Yii2 / CodeIgniter

    Bangladesh - Last active: 3 days ago - Tests: 6 - Portfolio: 10

    Web Development || Custom Web Application || Mobile Web Application || Software Development || Database Administration || CSS Validation || HTML Validation I will provide best service within deadline. I believe in long term relationship. If my work satisfied you definitely you will give me more projects in future. I want to increase knowledge, get customer satisfaction and take the challenge. Web Development * PHP5 * ASP.NET * HTML5 * CSS3 * JavaScript * jQuery Responsive Web Development jQuery Mobile Web Development PHP Framework: * Yii * CodeIgniter Desktop Environment * C# * VB6 Database * MySql * MSSql * SQLite

    $15.00 /hr
    1,122 hours
    4.99
  7. Maksim B.

    Maksim B.

    PhD Unix Developer

    Russia - Last active: 2 days ago - Tests: 11 - Portfolio: 1

    Over the last 10 years I have worked on 1. Scientific software development (quantum chemistry) 2.DevOps (Chef, Vagrant, Jenkins, Docker) 3. Portable GUI programing (Qt, PyQt, PerlQT) 4. Server-side web development (python, Django, JavaScript) 5. Scraping and crawling of web sites (python, Selenium, Scrappy, BeautifulSoup, PyQt etc) 6. Unix administration (web servers, email, proxyes, deploying python and java webapps, bash shell scripting) 7. Building packages for Linux distributions (rpm, deb, tgz etc packages) 8. Encrypting data 9. Virtualization (KVM, VirtualBox, VmWare, Docker, AWS EC2 and S3, DigitalOcean) 10. Customization the Linux iso images for Debian/Ubuntu and Centos/Fedora, build own minimal live linux iso to load on clusters and for kiosks etc. I know the following languages: Python, Perl, BASH, Postable shell, Java, JavaScript, C/C++, Fortran (77/90/95/2003), Latex, HTML I'm a fan of Linux and programming. I always open for new areas of activity.

    $22.00 /hr
    596 hours
    4.84
  8. Chalitha Wickramathilaka

    Chalitha Wickramathilaka

    Senior Backend Programmer / Tech Lead

    Sri Lanka - Last active: 18 hours ago - Tests: 2 - Portfolio: 15

    From almost 12 years I have been working with php based web applications. MVC, and Zend Framework 1/2 development environments. I have the same experience with java scripts /jQuery/extjs frameworks. I have more than 7 yrs experience on load balancing . Clustering , and replication over debian, centos and redhat systems. I use Oracle and mysql databases on most of my projects. As a code collaboration tool I am using Gforge with svn/git for my projects. also I have strong experience with iptv application such as tvguides, epg, music applications etc etc. I have been working on high loaded websites, application databases for my work. I have strong knowledge of optimizing web applications smooth run on a very high load. Also I have experience with hardware Visualization on VMware boxes. I have additional experience in ETL Jobs / Mysql clustering / Piranha / php heavy load balancing / caching nodes. Android / FB apps/ REDIS/VMware ESX configuration

    $33.33 /hr
    4,854 hours
    5.00
  9. Ivan S.

    Ivan S.

    Senior PHP/Zend/Phalcon Dev with HTML/CSS/JavaScript/jQuery experience

    Ukraine - Last active: 18 hours ago - Tests: 9 - Portfolio: 11

    I have almost 10 years of web-development and database administration experiences for various kinds of applications. I have extensive experience in database optimization. I focus on PHP, JS, MySQL, MongoDB. Over 9 years of IT working experiences with a proven background of technical problem solving. A self-motivated, reliable, responsible, and team player with a set of very strong technical skills. * Zend / Kohana Frameworks * Database design * Optimizing database performance * Ensuring security in the database * Ensuring the integrity of databases I have 8 years experience developing web based applications using PHP, Javascript, html and css.You can be assured of the quality of work and the usability. I participated in the creation of high-load systems (Hundreds of queries per second). I'll be glad to help you. Best regards, Ivan.

    $33.33 /hr
    4,837 hours
    5.00
  10. Maya Milusheva

    Maya Milusheva

    Top 10 Mobile Game Developer

    Bulgaria - Last active: 15 days ago - Tests: 3 - Portfolio: 10

    I aim to create addictive and high quality games. Several of the games that I developed for clients got featured by Apple and I am in top 10 in the "Game Programming Concepts Test". I have deep knowledge in the whole process of developing and releasing a game and I always strive to educate my clients in all steps of the game development process so that we make a great product. I have experience with game logic, engine development, graphics programming and tools. My primary languages are C/C++ and Objective-C and I'm proficient in various iOS game engines, DirectX and GPU programming. oDesk has recognized me as one of their top Mobile Developers. See the badge on the right of my profile for more information.

    $38.89 /hr
    73 hours
    5.00