Top Upwork Freelancers

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  1. Rudi Grinberg

    Rudi Grinberg

    Software Developer

    Canada - Last active: 6 months ago - Tests: 5

    Hello, I'm a passionate software developer specializing in functional programming in OCaml, Haskell, Erlang and the scripting languages Perl, Python, Ruby, and JavaScript. I always stay up to date the latest methodologies and best practices and deliver code quality of the highest class. I've been programming for a long time as a hobby (10+ years) and more recently (3+ years), as a professional. I am confident that I can complete any task that is thrown at me and I guarantee satisfaction with any code that I write. If you care about the maintainability and extensibility of your project then I am a great candidate for your project. Check out my github profile to see what I'm working on in my spare time: https://github.com/rgrinberg I've recently started a tech blog at http://rgrinberg.com Any comments or feedback is most welcome!

    $59.99 /hr
    891 hours
    4.99
  2. Allan R.

    Allan R.

    Java Tech Lead

    Philippines - Last active: 3 months ago - Tests: 10 - Portfolio: 13

    I am a Software Engineer with 6 years of solid java experience. I have been involved in all aspects of the software life-cycle, from analysis and design, server to client development using agile methodologies, testing, installation and deployment of web applications. I have also contributed solutions to opensource projects namely, Eclipse IAM and NPanday for 3 years. I have used a wide range of enterprise technologies and tools and my goal is to find interesting work opportunities in web development.

    $22.22 /hr
    1,070 hours
    4.33
  3. Anton K.

    Anton K.

    +5 years exp in hosting industry; NIX/WIN servers config/tuning

    Ukraine - Last active: 03/29/2012 - Tests: 10 - Portfolio: 1

    During the last 5 years I have been working in a company that provides a full range of hosting tech support. What does this mean? - quick and complete resolution of your problem. Why quick? - because a customer wants their site to be up and running 99.9% of the time. Why complete? - because if the issue is half-fixed now it may arise in the future and the customer will have to move to another provider who can solve the problem (you know hosting is a highly-competitive marketplace). All these factors are forcing me to have (or gain as fast as possible) a wide range of knowledge in system administration, programming, code debugging and customer relationship.

    $16.67 /hr
    74 hours
    4.94
  4. Sasindhran srija V.

    Sasindhran srija V.

    QA Engineer

    India - Last active: 3 months ago - Tests: 4

    ISTQB Certified Tester...I'm having an experience of 10 years with a thorough knowledge of SDLC life cycle. Experienced in Testing different domain including HR domain ,e-Learning, Software Products Group for application Compatibility testing. Expertise in writing and executing test cases and identify quality bugs. Also involved in Test planning and execution and have a knowledge of capacity planning as well. Have a good knowledge of Agile methodology and is experienced in working in sprints. Experienced in following : * Localization/Globalization Testing * Single user Performance Testing * Application Compatibility Testing * Web Testing * Data testing * Games Testing * Mobile Testing * Browser Compatibility Testing Quality is most important thing which is focused in my work.

    $5.56 /hr
    265 hours
    5.00
  5. Alexey Artamonov

    Alexey Artamonov

    Senior Ruby on Rails Developer and Team Lead

    Russia - Last active: 6 months ago - Portfolio: 5

    Software Architect and senior developer which employs communication and technical skills to build and lead teams in designing and implementing web apps or enterprise services. Builds solutions using Ruby based frameworks, refactoring existing projects. Specialties Strong developer skills include OOP, web application architecture, data modelling, etc... Domains: E-commerce, Business Directory Methodologies: Agile Development, Behavior Driven Development Platforms: Linux Languages: Ruby, JavaScript, C/C++ Databases: MySQL, PostgreSQL, MongoDB Others: Git, GitHub, PivotalTracker

    $42.00 /hr
    3,208 hours
    4.91
  6. Robert F.

    Robert F.

    System & Network Administrator

    Poland - Last active: 11/29/2014 - Tests: 4

    System & Network administrator with more than 6 years experience. Skills: - OS: - Linux ( Mostly Debian ) - Windows Server ( MCSA Certificate for 2012 ) - Virtualization: - KVM ( libvirt, proxmox ) - XEN ( XEN Project, Oracle VM ) - VMWare - Hyper-V - Networking: - Routing, Iptables, Mikrotik, VPN ( IPSEC, OpenVPN ), VLAN, … - Network Services: - Apache, bind, postfix, iptables, nagios, drbd, ocfs2, more and more - Shell scripting: Bash, PowerShell - DB: MySQL, PostgreSQL, Oracle 11G - Hardware experience: - Servers: HP( ML, DL, Blade ), IBM ( X, Blade ), DELL, TK, Actina - Storage: HP, DELL, IBM, Infortrend - Tape Libraries - and more :-)

    $20.00 /hr
    11 hours
    4.99
  7. Glenn Calleja

    Glenn Calleja

    Glenn Calleja

    Malta - Last active: 05/11/2014 - Tests: 2 - Portfolio: 2

    I am a full time iOS app Developer, and have been solely responsible for various apps including PageProud for iPad, apps for insurance companies, and much more. I have used the latest iOS technologies and have upgraded many apps for iOS 7. I also have experience working as a freelancer, where I was responsible for the creation of various iOS apps from start to finish. I have a B.Sc(Hons.) in Computer Science & AI from the University of Malta. Software and Technology Technologies: OpenGL, DirectX, WPF, WCF, Win32, Swing, Unity, ASP.NET iOS - Cocoa Touch (UIKit, Core Data, Core Audio, Media Foundation, Game Kit, Map Kit, Core Location, Game Center, iCloud), Core Foundation, Core Animation, Grand Central Dispatch Databases: MySQL, MS SQL, SQLite

    $22.22 /hr
    54 hours
    5.00
  8. Amir H.

    Amir H.

    Software builder

    Bosnia and Herzegovina - Last active: 11/09/2014 - Tests: 6 - Portfolio: 3

    My goal is to apply my knowledge and experience in order to create stable and functional software which is easy to use. I prefer less features over broken features. Over the last four to five years I've worked on many projects both in the web, desktop and enterprise space. Based on the requirements that we recognize I will guide you through all phases of delivering the software solution to You or your users. Besides developing the actual solution I can manage your servers, deployment, issue tracking and anything else we might need in order to meet our goal.

    $66.67 /hr
    266 hours
    5.00
  9. Ivan Dunkiy

    Ivan Dunkiy

    Mobile developer

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

    I'm end-to-end mobile developer. Made and released 7 projects both for Android and iOS. Used to work with technologies such as: REST, ORM, Push Notifications, SQLite, Google Maps, GSON, PayPal and others. Custom Layouts and Views creation. Used multithreading, background services, gestures listeners. Deliver your project from the start with specifications, requirements and design developing to the end with making support and analysis.

    $27.78 /hr
    22 hours
    5.00
  10. Giorgi Javakhidze

    Giorgi Javakhidze

    MCITP | Vmware | Windows - Linux Systems Administrator

    Georgia - Last active: 12/17/2013 - Tests: 6

    In the last 3 years, I have administered many IT networks, managing over 1000+ users. My core competency lies in complete managing of windows - linux based networks, including Active Directory, Exchange, MS-SQL, virtual clouds, based on VMware / Hyper-V and EVA Storage Area Network. I have deep experience in the following software solutions: Basic server services ( DNS, DHCP, WSUS, Vpn, etc. ) Windows 2003/2008 Server Windows 2003/2008 Active Directory Lync Server, Exchange Server, SharePoint Server. Monitoring: SCOM, Nagios Web Server: IIS, Apache Mail Servers : MDaemon, Postfix. Database: MSSQL, MySQL. Proxy / firewall solutions ( Squid, TMG, ISA ) VMware vShere and vCloud: ESXi, vCenter, vCloud Director, vShield

    $15.00 /hr
    183 hours
    5.00