Top Upwork Freelancers

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Kateryna C.

Kateryna C. Agency Contractor

iOS developer

Ukraine - Tests: 1 - Portfolio: 2

Skilled iOS developer at your service! I have solid experience in developing different types of iOS applications for exemple, development of mobile app for live streaming broadcast service for professional and aspiring gamers with more than 100k community - http://www.dingit.tv/. Deep knowledge of Xсode. Writing high quality code quickly and working within a wide variety of codebase. Ready to work a lot and hard! Best skills: Platforms: iOS Languages: Objective-C Tools: xCode, git Frameworks: Core Data, WatchKit Additional skills: Platforms: Mac OS X Languages: HTML/CSS Tools: GIMP

$26.00 /hr
37 hours

Anton G.

Anton G. Agency Contractor

System/Network Administrator

Ukraine - Tests: 4 - Portfolio: 5

Reliable and hardworking system/network administrator with tons of experience over my shoulders. Providing technical expertise for IT network building, implementation, optimization and upgrade Monitoring the network environment including Cisco managed switches and wireless controller routers, switches, firewalls, software applications Installation, configuration and maintenance of system network components (CentOS, AltLinux, FreeBSD, Windows Server 2012) Performing troubleshooting and diagnosis to hardware/software network failures, and providing solutions. Providing administration support, installation, configuration and maintenance of services: FTP, DHCP, DNS, 1C server (CentOS + postgreSQL, apache), VPN(L2TP/IPsec), NAS, Symantec Endpoint Protection Manager Here are my best skills: Platforms: Linux (RHEL / CentOS, Ubuntu Server / Debian), FreeBSD, Microsoft Windows Server 2003/2008/2012 Network solutions: Cisco routers, Mikrotik RouterOS, Hewlett-Packard ProCurve Web Server: Apache, NGINX Mail: Postfix, Dovecot, Cyrus IMAP and others Databases: MySQL, PostgreSQL, Microsoft SQL Server Virtualization: KVM, Xen, MS HyperV Cloud Technologies: Amazon Web Services (AWS), OpenStack Security tools: iptables, PF, VPN, OpenSSL Additional skills: VoIP services (Asterisk, FreeSWITCH, Cisco), analog PBX systems (Panasonic) Programming: BASH, Perl, PHP, VBScript Diagnostic services: Nagios, Icinga, Zabbix

$20.00 /hr
141 hours

Tejinder Kumar

Tejinder Kumar Agency Contractor

Web / UI / UX / Visual Designer & Full Stack Web Developer - 6+ Exp.

India - Tests: 18 - Portfolio: 47

Over the last 6 years, and i achieve more than 100+ Jobs / 2230+ hours of work completed with 90% Job Success on Upwork. I'm a full time an expert skill level UI Designer / Full Stack Developer with experience on various kind of technology. Apart from being a Web UI/UX Designer, I am also a Frontend Developer with vast experience in HTML5, CSS3, Bootstrap, WordPress, Jquery, Javascript, Less, Sass PHP/MySQL, Angular JS, NodeJS this knowledge allows me to avoid design mistakes that can influence future UI development. You can assign me test task if you want to see my work. Recently worked on few JS framework like knockout js, Angular JS. I have also designed some of the web applicataion architecture, and played roll as database design expert also. Having well-rounded knowledge of twitter bootstrap, responsive web design (for mobile, tablets, desktop, ipad, iphone, ipad-min etc), HTML5, CSS3, Html Canvas, XML, JSON API, JQuery, Twitter Bootstrap with SASS, WordPress & plugin development and Server setup and migration. If your business needs supports of cross-platform (PhoneGap/Cordova) based (Android/iOS) mobile application solution then contact me over UpWork. Hardwork with dedication is key to get smile on my clients face. Completing the project before deadline with quality coding is what helps me to get projects awarded to me. My core competency lies in creativity, excellent graphic design skills and deep attentiveness to the customer demands. Strong and regular QA, semantic ideology, W3C checking and compliant to the best coding standards.

$10.00 /hr
2,237 hours

Neelesh Chouksey

Neelesh Chouksey Agency Contractor

PHP developer

India - Tests: 4 - Portfolio: 11

Engineer, Experienced who thinks in PHP, plays with AJAX, talks with MySQL, and sleeps on PC. Passionate PHP developer with 7+ years of experience. Expertise in Core php, CodeIgniter,Zend,Drupal and Wordpress,Angular JS along with necessary technologies (i.e. JQuery, Ajax, and Javascript). We can work on all the phases of a project : Design, HTML, Coding, QA, Deployment, and SEO following all the standards. So you can have all the things under one floor :)

$15.00 /hr
4,921 hours

Alex Gumbar

Alex Gumbar Agency Contractor

Professional Senior Graphic Designer and Web Designer

United States - Tests: 7 - Portfolio: 37

I'm owner and designer at Art-Industry. I can develop Web sites, Landing pages, e-commerce sites, Logos, Banners, Business ID, Flyers, Labels, Brochures, Infographics, Interactive HTML5 intros, etc... fast and professional. All my works are unique, and honest rates with high quality of work are available. I have a team of professional coders and programmers as well. So we can do: web sites, psd 2 html conversion, wordpress cms web-sites, landing pages, e-commerce websites etc...

$25.00 /hr
1,500 hours

Konstantin Sharipov

Konstantin Sharipov Agency Contractor

.NET Senior Solution Designer and Developer

Russia - Tests: 2 - Portfolio: 20

I am an experienced and passionate .NET system architect and developer. My main areas of expertise are: .NET: C# 2 to 5, VB.NET, Azure, ASP.NET, MVC 3 to 5.0, WPF, WCF. Web API, LINQ. Databases: SQL Server 7 - 2014, Oracle 9-12. NoSQL: MongoDB, ElasticSearch. Client side: Javascript, AJAX, JQuery, AngularJS and React. I am a huge MVC follower. I consider this framework the best web dev tool from Microsoft, because it clearly separates the business logic from presentation, solutions are easy to develop and maintain. Ecommerce: I have extensive experience customizing nopCommerce system, building plugins and setting up turn-key shops on the web using this opensource .NET platform. CMS: I have set up a number of sites using Orchard CMS, both for internet and complex intranet systems. I have experience in mobile development. I developed a couple of game apps using Xamarin Studio. This is a fantastic tool which helps us develop native iOS, MacOS and Android games with the Microsoft .NET technology stack. With MVVM Cross we maintain single backend codebase for apps on different mobile platforms. I have exposure to games and virtual reality apps development with Unity3D. Please see portfolio for more samples. Having a university degree in computer science, I value customers who appreciate efforts invested in using OOD patterns, utilizing full strength of OOP and UML modelling. Analyzing business requirements and producing technical specs is something I was doing for the last 10 years. According to my Elance/Upwork customer feedback, I am really good at that. I am keen on Agile TDD environment and consider writing tests as one of the important development stages. My English is fluent, I lived in Manchester, UK for three years and worked as an analyst programmer. I lead software teams that provide full cycle of software development. I am not interested in "one hour" or "one day" jobs. I establish long-lasting relationships with my clients. I always consider commitment to the result as my utmost priority.

$40.00 /hr
3,531 hours

Dmitrii Shilov

Dmitrii Shilov Agency Contractor

ASP.NET C# VB.NET Developer

Russia - Tests: 1 - Portfolio: 3

I am a professional .NET applications developer. My main areas of expertise are: .NET C# 4: ASP.NET, MVC, WPF, WCF, LINQ, SQL Server and db-driven applications. I have mastered both ASPX (including Telerik control library) and MVC (Razor) techniques. I am keen on Agile TDD environment and consider writing tests as one of the important development stages. I prefer server-side programming (calculations and algorithms), but I am quite comfortable with JQuery and HTML/CSS. I got a master degree in Math and Computer Science.

$40.00 /hr
990 hours

Konstantin Sharipov

Konstantin Sharipov Agency Contractor

.NET Senior Solution Designer and Developer, Team Lead

Russia - Portfolio: 20

I am an experienced and passionate .NET system architect and developer. My main areas of expertise are: .NET: C# 2 to 5, VB.NET, Azure, ASP.NET, MVC, WPF, WCF. Web API, LINQ. Databases: SQL Server 7 - 2014, Oracle 9-12. NoSQL: MongoDB, ElasticSearch. Client side: Javascript, AJAX, JQuery, AngularJS and React. I am a huge MVC follower. I consider this framework the best web dev tool from Microsoft, because it clearly separates the business logic from presentation, solutions are easy to develop and maintain. Ecommerce: I have extensive experience customizing nopCommerce system, building plugins and setting up turn-key shops on the web using this opensource .NET platform. CMS: I have set up a number of sites using Orchard CMS, both for internet and complex intranet systems. I have experience in mobile development. I developed a couple of game apps using Xamarin Studio. This is a fantastic tool which helps us develop native iOS, MacOS and Android games with the Microsoft .NET technology stack. With MVVM Cross we maintain single backend codebase for apps on different mobile platforms. I have exposure to games and virtual reality apps development with Unity3D. Please see portfolio for more samples. Having a university degree in computer science, I value customers who appreciate efforts invested in using OOD patterns, utilizing full strength of OOP and UML modelling. Analyzing business requirements and producing technical specs is something I was doing for the last 10 years. According to my Elance/Upwork customer feedback, I am really good at that. I am keen on Agile TDD environment and consider writing tests as one of the important development stages. My English is fluent, I lived in Manchester, UK for three years and worked as an analyst programmer. I lead software teams that provide full cycle of software development. I am not interested in "one hour" or "one day" jobs. I establish long-lasting relationships with my clients. I always consider commitment to the result as the first priority.

$40.00 /hr
2,643 hours

Maxim Berdyugin

Maxim Berdyugin Agency Contractor

Team Lead, Senior Solution Designer and Architect

Russia - Tests: 2 - Portfolio: 2

I am a team leader and project manager. I am an experienced and passionate system architect and developer. My main areas of expertise are: - leading mid level software development teams, including distributed multi-lingual teams across the glode, - process and product management, - full cycle of software development, - programming with .NET C# ASP.NET MVC, WPF, WCF. LINQ, SQL Server and NoSQL, MongoDB. I am keen on Agile TDD environment and consider writing tests as one of the important development stages. My strength is solving complicated tasks, coming up with ideas and implementing, delivering the best result possible.

$40.00 /hr
162 hours

Sergey F.

Sergey F. Agency Contractor

System/Network Administrator

Ukraine - Tests: 3 - Portfolio: 5

Skilled System/Network Administrator ready to work! I have experience in the implementation of different projects, setting up from the scratch, migration, tuning, optimization, maintenance/troubleshooting etc systems of various complexity (from simple website to project with more than 100k community such as http://www.dingit.tv/). System and Network Administration is not just job for me, it is something more, from a hobby at a young age it has grown into a passion. In recent years, I have great pleasure in doing System / Network Administration, I devote for this profession most of my time. I have great experience in: Platforms: Linux (RHEL / CentOS, Ubuntu Server / Debian, Slackware), Windows Server 2003/2008/2012 Network solutions: Mikrotik RouterOS, heartbeat, drbd, GlusterFS Web Server: Apache, NGINX Databases: MySQL, PostgreSQL Mail: Dovecot, Postfix Virtualization: Xen, KVM, MS HyperV Cloud Technologies: Amazon Web Services (AWS), OpenStack Security tools: iptables, squid, VPN, OpenSSL Hosting panels : Plesk, whm\cPanel, DirectAdmin Additional skills: experience with bacula/BackupPC, experience with MS AD (~1000 clients hosts), GPO writing bash, sed/awk bases, ,raid technology, LVM knowledge

$20.00 /hr
73 hours