Web Mobile Software Dev Freelancers

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  1. Svyatoslav Tiunov

    Svyatoslav Tiunov

    Full Stack Web Developer

    Russia - Tests: 4

    I have about 5 years experience in web-based business-intelligence platforms development. Previously I had been working in Prognoz (http://www.prognoz.com, international software corporation based in Russia). About skills: Backend: C# (incl. ASP.NET WebForms, ASP.NET MVC, Entity Framework, ITextSharp, and many other frameworks and libraries) Frontend: HTML, CSS, JavaScript (incl. jQuery, Dojo, Prototype and other) DBs: Microsoft Sql Server, Oracle

    $11.11 /hr
    2 hours
    5.00
  2. Tanya S.

    Tanya S.

    Java Software Engineer

    Bulgaria - Tests: 7

    Over the last 4 years I have been implementing and supporting various server infrastructure components - Portlet 2.0 Container, Web Server, etc. - and have taken care for the security of those components - that includes compliance checking, designing and implementing security patches. I have solid Java programming experience (more than 7 years) and a very extensive security related knowledge - both in application security and session management security. I am seeking opportunities to use my experience in design and implementation of stable and secure applications and in improvement of the security level of existing code. Prior to that I have 2 years experience as a team lead of Quality Management team so I am familiar with the best software testing strategies and I am capable of managing small teams. I also have some experience in the following areas: Linux/Unix administration, shell scripting - Bash and Korn shell, Informatica, Perl, Python, C#, software design and testing.

    $16.67 /hr
    0 hours
    5.00
  3. David Knell

    David Knell

    Senior telecoms developer/CTO

    United States - Tests: 2

    I've been developing software commercially for more than a quarter of a century, both as an employee of large organisations (IBM) and, to a greater extent, as my own boss. I've built and sold two businesses along the way, learning a great deal from having done so. My focus has been on telecoms. I developed TDM IVR systems based around Aculab and Dialogic cards in the late 1990s, and have, more recently, been involved in developing IP solutions using Asterisk, Kamailio and FreeSWITCH. These have included an IP Centrex platform (Asterisk and SER), a carrier-grade softswitch (FreeSWITCH) and various IVR solutions (Kamailio and FreeSWITCH). I'm fluent in a number of languages, including C, PHP, Perl, C# and Javascript, am happy to develop on Windows or Linux and have been using Agile development methods - in particular, release early and often - since before the term Agile was coined. I'm experienced with managing small teams of developers, and understand the importance of delivering the agreed product on time and within budget.

    $75.00 /hr
    3 hours
    5.00
  4. David H.

    David H. Agency Contractor

    Citrix and Virtualizaion Systems Engineer

    United States - Tests: 3

    I am a specialist in remote application delivery, VDI and cloud based computing. I have been working with Citrix products and some of their competing products and add-ons, from back in the Winframe NT4 Terminal server days, all the way up to the current Xenapp 6.5. I work full time for a major NYC hospital on the Citrix Engineering team, responsible for 200 + servers supporting a 24/7 mission critical environment. I have engineered delivering hundreds of applications to users on every type of device out there (PC, Macs, Thin clients, iPads, Androids, HTML5 browsers, etc.). I have a legacy MCSE for Windows 2000, and years of experience with Windows Server 2003, 2008, and 2008 R2. I have extensive experience with Active Directory group policies, Proxy servers, Web Servers, and Logon scripts using WSH, CMD files, and PowerShell. I have recent training in Microsoft App-V, Citrix Xenserver, Amazon Web Services, VMWare vSphere 5, OpenVPN and VDI-in-a-Box. I have recent part-time contracting experience providing Windows Server 2008 R2 IaaS servers in the cloud with Amazon AWS, OpenVPN, and a proof of concept project to provide SaaS using Xenapp and VDI for end users of a small business, including a custom web portal for them to reach their desktop from anywhere.

    Associated with: 3 Bay Consulting, LLC Agency

    $48.89 /hr
    72 hours
    4.99
  5. Faisal A.

    Faisal A. Agency Contractor

    Experienced Software Developer

    Pakistan - Tests: 2 - Portfolio: 5

    I have an overall experience of 15 years. I am currently working as a member of a fully distributed team for YouNeedABudget.com since March 2012 (http://www.youneedabudget.com/company/team). I specialise in backend server side development using Node with Javascript/Typescript. I have experience of working with both relational databases (PostgreSQL) and NoSQL databases (MongoDB). I have also done some front-end work using both AngularJS and EmberJS. I believe in test driven development, and use Karma and Chai extensively for unit testing. I have worked with Jenkins for CI, and use Git for SCM. I also use Vagrant for setting up development environments. I have worked with Heroku for application deployments. In the past, I have worked with Adobe Flex and Microsoft .NET technologies extensively.

    Groups: Application Developers Alliance

    Associated with: ByteSmiths

    $66.67 /hr
    5,524 hours
    5.00
  6. Alexander G

    Alexander G Agency Contractor

    Software Developer

    Armenia - Tests: 5 - Portfolio: 6

    Professional Experience 02.2013 to present Simply Technologies Position: Senior Software Developer Yerevan, Armenia 02.2008 to 02.2013 Macadamian AR Position: Senior Software Developer Yerevan, Armenia 08.2006 to 02.2008 Synopsys LLC (SEG Department) Position: Software Developer Yerevan, Armenia 08.2002 to 06.2004 HPLA LLC Position: Software Developer Yerevan, Armenia Projects Yidio video search engine Mac OS Snow Leopard 10.7, Objective C, Xcode 4.5.2, iOS SDK 5.0+ Implementing Yidio application for iPhone. Yidio is the platform for the discovery, consumption, and socialization around entertainment and digital media. Blackberry 10 support for Titanium Studio Windows 7, QNX QDE, v8 JavaScript engine, BB Cascades Porting the Titanium Mobile SDK codebase to BB10. CorelDraw X6 version maintenance Windows 7, VS 2010 Development and maintenance. FAA NAS Voice Switch Linux Fedora 14 with QT 4.7 Implementing SIP extension based on SIP stack from Media5. Cisco Umi telepresence extension for mobiles MacOS 10.6, Java, iOS SDK 3.2+ Implementing Cisco Umi telepresence extension for iPhone/iPad. Flip Share Project on Android and BlackBerry devices Windows XP, Java, Eclipse IDE 3.4.2, Android SDK 1.5, BlackBerry JDE Video streaming. Web client UI design and implementation for Android and BlackBerry devices. Human resource time-tracking system extension Windows XP, C#, WCF/WPF, VS2008, SQL Server 2005, SVN Team lead of 3 resources. Design and development of desktop extension of existing web-based time-tracking system. ChoiceStream, Web Recommendation Manager Windows XP, Linux, Aptana Studio, Ruby on Rails, JavaScript, RSpec, Selenium, Tomcat, Mongrel, MySQL, Perforce Secured website development, test automation. Handling technical design issues. Nortel PC Client AS5300 Services Project Federal Project containing base Nortel PC Client, including new features for federal purposes. Nortel PC Client maintenance Windows, MS VS2003 PC-based application: telephone service, video calling, instant messaging, real-time call disposition, conferencing, file sharing and white boarding. Personal Projects iPhone application development Mac OS Snow Leopard 10.6, Objective C, iOS SDK 3.1 Streaming video client UI design and implementation, based on web services providing by customer. Alarm Clock for iPad Mac OS Snow Leopard 10.6, Objective C, iOS SDK 3.2+ http://itunes.apple.com/us/app/alarm-clock-with-flashlights/id413649717 http://itunes.apple.com/us/app/cool-alarm-clock-day-reminder/id504174371 http://itunes.apple.com/us/app/alarm-clock-day-reminder/id547232326 Compass application for iPhone, iPad devices Mac OS Snow Leopard 10.6, Objective C, iOS SDK 4.3+ http://itunes.apple.com/us/app/compass-pro/id458958949 Speedometer application for iPhone, iPad devices Mac OS Snow Leopard 10.6, Objective C, iOS SDK 4.3+ http://itunes.apple.com/us/app/speedometer-s54-speed-limit/id483710281 Zombie Detector (Smart Camera) Mac OS Snow Leopard 10.6, Objective C, iOS SDK 4.3+ https://itunes.apple.com/us/app/zombie-detector-smart-camera/id552760128

    Associated with: ARARAT

    $16.67 /hr
    155 hours
    4.87
  7. Martin P.

    Martin P. Agency Contractor

    Mobile Applications Architect

    United States - Tests: 3 - Portfolio: 8

    I am a professional iOS developer. I provide high quality development services for iPhone and iPad. I have more than 4 years of professional development and more than 10 apps submitted to the Appstore. I create a project plan for every project and I always keep the client up to date with the project progress. I have the knowledge to build an app from the ground up and to submit it to the Appstore. My work is a synonym for quality !!!

    Associated with: Samsourcing

    $44.44 /hr
    433 hours
    5.00
  8. Drew Ulmer

    Drew Ulmer Agency Contractor

    [Upwork Top 5 Percent] Professional Rails Developer

    United States - Tests: 4 - Portfolio: 6

    When you hire me, you're hiring a top 5% Upworker with multiple successful projects and universally happy clients. I am an expert Ruby and Rails developer with more than 6 years of successful projects with Ruby on Rails versions 2.3 through 4.x. I enjoy working on everything from ecommerce to line of business applications and I specialize in identifying and fixing security issues. I can occasionally be found on the #rubyonrails freenode IRC channel and my github can be found under the username latortuga. I have contributions to major open source projects including Ruby on Rails, Devise, ActiveAdmin, cache_digests, warden, spree, and zeus. I am generally interested in Ruby or Rails development proposals, provided they include information about the actual project and not merely a list of skills.

    Groups: Twilio

    Associated with: Unabridged Software

    $150.00 /hr
    1,096 hours
    4.98
  9. Serhiy Kanyuka

    Serhiy Kanyuka Agency Contractor

    I like to mix technologies to get the best solution for client.

    Ukraine - Tests: 7 - Portfolio: 5

    I am developing for more than 12 years and participated in development of big projects (tech lead, project manager,developer) and developed small projects on my own. There were native client-applications for Windows (C++, C#) and Linux as well as servers and web applications (Linux, Windows). For the last 4 years I was also working with architecture design and development in few areas like: Vending Machines Web Services and Web Application in Web Clouds (AWS) Internet Payments Distributed Databases Microcontrolers internet of things set-up and monitoring of Linux/Freebsd servers and developing the web-applications. I have quite a large experience in developing and debugging so I can look at project deployment as developer and as administrator that gives better and faster result. The learning of new technology and it’s intergation is my favourite activity that’s why I will understand you easily and integrate in your project team. My skills: OS: Busybox, Linux, Debian, RedHat - expert, FreeBSD and Windows Server - proficient Web servers: Apache, Nginx, Tomcat, haproxy Database servers: Mysql, Postgresql CMS:Yii, CodeIgniter Advertising: OpenX, AdSense Scripting: bash, perl, php, javascript Languages:C, C++ SDK:Qt Virtualization: Vmware esxi/server Other: standard network services (DNS, DHCP, Samba, SVN, http proxy, backups, monitoring etc), firewalls and routers I have work with hosting: AWS, hetzner.de, rackspace, amh.com, advancedhosters.com

    Associated with: Krechet Company

    $24.44 /hr
    7,812 hours
    5.00
  10. Oleksandr K.

    Oleksandr K. Agency Contractor

    Mobile, Desktop and DSP developer

    Ukraine - Tests: 6 - Portfolio: 10

    Over the last years I've been developing apps for iPhone, although, most of the apps I developed are still under NDA. Previously I've been developing DSP solutions (mostly digital image and audio processing algorithms) and industrial control systems. I like iPhone development, as there is some challenge because of the limited processing capabilities, but it is still fun. My core competencies are DSP systems and along with all sorts of non-web apps. I also have experience in the following areas: software architecture, OOP, FPGA-development.

    Associated with: IDAP Group

    $33.33 /hr
    555 hours
    4.76