Top Upwork Freelancers

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  1. Jim Keir

    Jim Keir

    OCP Oracle Database Administrator

    United Kingdom - Last active: 12/31/2014 - Tests: 4

    British expert in Oracle performance tuning. Multiple OCP certifications, 15+ years experience in the field as DBA and Consultant. SQL and PLSQL tuning, data structure recommendations, database healthchecks, server performance optimisation, Pro*C. Holistic approach to making your Oracle database faster. Spend a little on efficiency, save a lot on hardware.

    $66.67 /hr
    43 hours
    5.00
  2. Dhinesh R.

    Dhinesh R.

    Expert JAVA/STRUTS/PHP/WMB/MYSQL/Payment Gateway Integration

    India - Last active: 2 months ago - Tests: 7 - Portfolio: 1

    i have around 7.5 years of working experience on various web applications using various technologies , in all the level of the web project .• Around 7.5+ years of experience in development of robust, maintainable and scalable Web & Client – Server systems, this includes Analysis, Designing, Development, Coding and Testing. • Development Experience in Java, J2EE,PHP,Zend Framework, Hibernate,JPA, Struts, Spring, Ajax, XML,jquery, Mysql, Eclipse,Xampp,Apache weserver,,Apache Tomcat,Jboss under Windows and Linux. • Development Experience on WMQ and WMB. • Strengths include ability in meeting deadlines and deliverables while achieving excellence and quality of work, excellent technical and communication skills. • Flexibility to change/leverage with any new Technology in no time.

    $16.67 /hr
    57 hours
    4.99
  3. 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
  4. Hassan Khan

    Hassan Khan

    Senior DBA and Application Developer

    Pakistan - Last active: 6 months ago - Tests: 9 - Portfolio: 4

     Versatile and accomplished management professional offering over 9 years of experience in database and application server administration, and application development across various industries.  Proficient in Oracle Developer 4.5/ 2000/ 6i/ 10g, Access, VBA, Crystal Reports with Oracle, SQL Server, Access Databases on huge networked installations consisting of AIX, and Windows servers.  Recognised for hands-on experience in installing and testing new versions of the database management system and maintaining data standards, including adherence to the Data Protection Act.  Strong working knowledge of controlling access permissions and privileges; developing, managing, and testing back-up and recovery plans, and ensuring correct functioning of storage, archiving, back-up, and recovery procedures.  Showcasing exceptional organisational, multi-tasking, and analytical skills leading to effective operational excellence and communicating regularly with technical, applications and operational staff to ensure database integrity and security.  Adept at commissioning and installing new applications and customising existing applications in order to match them appropriately; and working closely with IT project managers, database programmers, and web developers.  Strong expertise in leading application development teams and administration and tuning of Oracle Databases including Container Terminal Management System, Core Banking, Oracle Financials, HRMS, Treasury, AML, KYC, Siebel, and Knowledge Manager.  Skilled initiator of successful strategies ensuring effective operational excellence and improved work ethic, culture, and performance. Received Appreciation letter from the CEO of Karachi International Container Terminal for successfully implementation of CARe project.  Excellent communicator and a top negotiator with an ability to work under pressure in fast-paced, time-sensitive environments. Proven ability to effectively interact with people of diverse nationalities; comfortable working in a multicultural setting.

    $16.67 /hr
    116 hours
    4.94
  5. Adeel Shahid

    Adeel Shahid

    PMP Project Manager/.Net and SharePoint Specialist

    United Kingdom - Last active: 09/10/2014 - Tests: 1 - Portfolio: 11

    Over 17 years of experience ranging from AS400 mainframes to .NET 4.0, SQL 2008 to SharePoint. I am also a certified PMP and have over 6 years of professional project management experience, managing multiple complex projects simultaneously as well as setting up PMOs. I have worked across UK, Benelux and Middle-East as well as clients in Pakistan. Some of my past clients as a contractor include: PNU (Princess Nourah University), Riyadh, Saudi Arabia NPSA (National Patient Safety Agency), London UK TDA (Training and Development Authority), London UK Scottish Re (Insurance Company), Windsor UK A2A Interactive (Media & Advertising), London, UK ABN-Amro (Bank), Amsterdam, Holland RazorFish (Design), Amsterdam, Holland UPM-Kymmene (Paper Industry), Brussels, Belgium DPS (Digitial Processing Systems), NewYork, USA)

    $25.00 /hr
    699 hours
    4.50
  6. 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
  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. 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
  9. 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
  10. Andrey Vetkalov

    Andrey Vetkalov

    QA Engineer

    Russia - Last active: 08/29/2013

    Hi! My name is Andrey and I'm QA Engineer from Saint Petersburg, Russia. I have 2+ years experience as QA Engineer. Also: Blackbox, Cross Browser (Compatability) Testing, Regression, Functional, load testing Requirements analysis Test case creation Detecting and analyzing possible incidents Experienced in Android and iOS applications manual testing. Creating Test Plans/Scenarios/Test Cases for carrying out tests at various development stages Task tracking systems: Jira, Redmine. Basic knowledge of HTML, CSS, SQL. Usually work under Windows and use virtualization (VMWare or Oracle Virtualbox) to create appropriate test environments (Ubuntu, Windows XP, Windows 7, Windows 8 with combination with all popular or old versions of browsers, that you can ask. Availability: Monday - Friday from 18:00 to 23:00 (GMT+4)

    $8.00 /hr
    1,009 hours
    5.00