Top Upwork Freelancers

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  1. Ashish Singh

    Ashish Singh

    Data Visualization / D3.js

    India - Last active: 2 days ago - Tests: 4 - Portfolio: 3

    I create data visualizations primarily using d3.js. I love working on challenging designs. I also work with other visualization libraries such as nvd3, HighCharts and xChart to name a few popular ones. Apart from data visualization, I've developed web applications using front-end web technologies including HMTL5 / JavaScript / JS frameworks / CSS3 / SASS, PHP, and MySQL. I collaborate using Git ( GitHub or BitBucket or Private Git repo ) and have been working with AWS and its cluster services for almost all my major projects. Looking for exciting short-term and challenging long term projects!

    $56.00 /hr
    1,972 hours
    4.81
  2. Andrii Khudiakov

    Andrii Khudiakov

    Oracle DBA expert

    Ukraine - Last active: 7 days ago - Tests: 3

    I am certified Oracle database administrator with 8+ years experience in all areas which cover Oracle administration tasks. Installation, configuration, tuning, backup strategy, integration in OLTP and DWH environment on *nix and Windows OS in one-node and RAC configurations I can provide complete service for your existing Oracle DB as also install and configure your future Oracle database infrastructure. Cover 8i/9i/10g/11g/12c versions on Linux, Windows, Solaris, HP-UX. - File system, raw devices, ASM. - Oracle DB performance tuning - Backup and recovery solutions for Oracle DB - Dataguard solutions - High availability solutions - Data management - Security configuration - Exadata X2, X4 administration, configuration, tuning - Installation and configuration OEM version 10g, 11g, 12c Oracle Сertificates: - Oracle Database 11g Performance Tuning Certified Expert - OCP DBA 11g - OCP DBA 10g - SQL Certified Expert - Linux Certified Expert - Exadata 11g Certified Implementation Specialist LinkedIn profile: ua.linkedin.com/in/andreykhudyakov/

    $33.33 /hr
    307 hours
    5.00
  3. Mathew Hobson

    Mathew Hobson

    Graphic Designer, Artworker and InDesign Expert

    United Kingdom - Last active: 7 days ago - Tests: 5 - Portfolio: 26

    I am a professional Graphic Designer with well over 15 years experience in the industry. Along with working full-time in a studio I also like to freelance when I have the time available. I am Adobe Certified Expert (ACE) in InDesign and have many years of experience using Photoshop, Illustrator and Acrobat Pro. I also know a bit of HTML and CSS and have completed web projects in Muse and Dreamweaver.

    Groups: Adobe Certified Experts

    $33.33 /hr
    57 hours
    5.00
  4. Husen C.

    Husen C.

    Web Development Expert with System Designing & Frontend Skills

    India - Last active: 1 month ago - Tests: 5 - Portfolio: 9

    Couple reasons why hire me: - Unlike other great developers I know how important is to keep an communication channel. - My working hours are very flexible. I can work for your timezone and I can be available with couple hours notice (depends on communication channel). - I've started developing web applications 8 years ago. By now I was exposed to different areas of product development aspects (not only just coding), so when you need not only coder, but also someone that thinks logically/analytically, I'm your the guy you need for application. - Completed all my odesk job with 5 star rating with excellent client feedback and 100% client return ratio. - Even though my rate may seem little high I can assure you that I'm efficient and spending time purely on planning and development. I'm never charging for anything not directly connected with project (for example filling the knowledge gaps; there will be always something to learn). In the end you're not just getting a efficient developer (peace of mind), but also someone that will help you with project in general (excluding graphic design; I just know I'm not good in that area). Over the last 8 years I have developed many web applications using HTML, CSS, Ajax, JQuery and Server side programming language like PHP & storage system of MySQL for startups and other companies. I also work on latest technologies of HTML5, CSS3 & Bootstrap. I also have wide experience working on CMS like Wordpress, Joomla, Drupal & Ecommerce platforms like Magento. Looking forward for your chance to work with me.

    $33.33 /hr
    1,332 hours
    5.00
  5. Ryan Kolofer

    Ryan Kolofer

    Experienced Database Developer and DBA

    United States - Last active: 10 days ago - Tests: 3

    Four years of experience in SQL server 2005, 2008, and recently using SQL 2012. Certifications: • MCSE: Microsoft SQL Server 2012 Systems Expert Data Platform • MCSA: Microsoft SQL Server 2012 Certified Solutions Associate • MCITP: Microsoft SQL Server 2008 Database Administrator • MCITP: Microsoft SQL Server 2008 Business Intelligence Developer • MCSA: Microsoft SQL Server 2008 Certified Solutions Associate • CompTIA A+, Network+, Security+ Certified

    $65.00 /hr
    286 hours
    5.00
  6. Stan H.

    Stan H.

    Sr. Web Developer (Magento, php, ASP.NET, MVC, SQL, JS)

    Slovakia - Last active: 1 day ago - Tests: 11 - Portfolio: 6

    My objective is to be better than others. My strong points include delivering high quality code in a timely manner, deep understanding of web technologies, and working independently. I don't bill for learning and a free support for my code is a matter of course. I have more than 9 years of programming experience. I specialize in web and intranet applications with complex SQL database backend. My latest projects involved writing Magento extensions, php extensions (C/C++), automating home loan pre-approval, home loan decisioning, and home loan pricing processes. Preferred technologies: ASP.NET C# (MVC, Entity Framework, Web Forms, ADO), php (Magento, Zend Framework), MS SQL, MySql, Ajax/JavaScript/jQuery.

    $40.00 /hr
    2,065 hours
    5.00
  7. Jason M.

    Jason M.

    Software Developer

    Canada - Last active: 1 day ago - Tests: 2 - Portfolio: 2

    Good Technical Fellow who can handle the most difficult jobs across diverse product family and technology library. My previous jobs include software performance optimization, software engineering process design and management. Above 8 years in direct hands-on coding. My skills include great software development practices and tools, including Virtual environments, Source control, Remote development, Issue tracking , Build , Packaging and test automation. Develop both desktop and Web applications using advanced technologies , which include : Java/J2EE, XML , XMLSchema, J2ME , Cocoa , Objective-C , UI Components with Swing /AWT, Web Frameworks such Hibernate,JSF,Struts... Mobile Developer : iOS Recent Application: Property Appraisal Applications for iPhone and iPad

    $30.00 /hr
    88 hours
    4.97
  8. Rahul H.

    Rahul H.

    Project Manager / IT Consultant & Generalist

    India - Last active: 18 hours ago - Tests: 34 - Portfolio: 13

    Seasoned IT Professional with extensive experience in Software Development, Database Technology, Project Management & Business Analysis. An innate ability to always remain on top of the situation has helped me to establish a track record where I have not missed out on a single deliverable. Core Technology Areas - Data Warehousing & Business Intelligence Tools - SSIS, SSRS, SSAS, Crystal Reports - Development of Triggers, Stored Procedures using T-SOL in MSSQL Server - Designing databases - Conceptual & Physical schema - .Net framework 3.5 & 4 - Asp.net, Web Worms, C#, Ajax, Web Services, Win Forms - ORM- LINQ, Entity Framework. nHibernate - Use Cases, UML Artifacts, MS-Visio, Wireframing tools - MS-Access, VBA Abilities - Orchestrating total solutions from requirement analysis to testing and implementation. - Proven experience in project management, risk analysis & successfully leading teams - Interfacing with clients - both pre & post sales Strengths - Ability to think out of the box within defined and accepted methods of execution and delivery

    $35.00 /hr
    4,476 hours
    4.96
  9. Khizer Farooq

    Khizer Farooq

    Computer Systems and Network Engineer CCNA|MCSA|MCITP|OCP|ITIL|VMWARE

    Pakistan - Last active: 1 day ago - Tests: 13 - Portfolio: 12

    I have done Computer Systems Engineering, worked with different companies for three years and now starting to work as a full time Free Lancer. I have an extensive first hand experience of dealing with System Networks, Windows Servers ( 2003, 2008),2012 different vendors Internet management and security solutions ( Hardware and software) like Air Live 802.11G Internet Access Server, Sonicwall,WatchGuard , ISA 2006 server, GFI Web Monitor, HP Servers, Client and server OS. Other than professional experience I have done Worked in following virtualization software's VMware ESXi 5.0-5.5 Microsoft Hyper-V, Sun/Oracle Virtual Box. Other than professional experience I have done different International Certifications CCNA. MCITP Windows7 Enterprise MCSA Windows 7 MCTS. | Windows 7 MCTS. | Windows 8 PRO: Designing and Deploying Messaging Solutions with Microsoft Exchange Server 2010 OCP( Oracle Sun Solaris OS 10 System Administrator) ITIL Foundation. VTSP 5 I have successfully completed following projects, that were for IT Govt Sector and five star Hotel's Planning Designing and Establishing Network Infrastructure using Microsoft Operational Framework (MOF v 4.0),network consisted of 200+ clients and 20 + servers (HP Proliant ML-150, ML-350,Dell Power Edge 2900). Installation configuration and management of ISA Server 2006,Juniper SSG 5 working together, providing security solution for more than 100 static and 200+ dynamic clients. Automate the process for Management of Internet User Account for the users by Implementation of RADIUS Server In-house developed Software Application Up gradation of clients systems from Windows XP to Windows 7 . Up gradation of domain from Server 2003 to server 2008 Enterprise R2 .

    $44.44 /hr
    566 hours
    4.95
  10. Vladlen E.

    Vladlen E.

    Probably best UI/UX , Icon and Logo Designer.

    Russia - Last active: 7 days ago - Tests: 4 - Portfolio: 35

    I have more than 19 years of experience in the advertising industry, this includes graphics design, logos, web, ux/ui, 3D and packaging design. Adobe ACE (certified expert). Perfect knowledge: Photoshop, Illustrator and Indesign. You may think my rate too high? It's not. While other contractors making money by wasting the clients time, I do the job fast and with excellent quality! UI/UX/Web: http://dribbble.com/ssh4 and http://iosology.com Old Works: http://krukka.ru Font design: http://www.paratype.com/pstore/fonts/Somaton.htm and http://www.paratype.com/pstore/fonts/DJ-parade.htm 3D modelling in Lightwave3D from old Amiga's years. Animation and video upscaling (SD -> HD) and remastering. Avisynth/x264 encoder. Photoshop layer effects: http://texteffects.iosology.com/ So I can do *any* kind of design work.

    Groups: Upwork Verified Mobile Developers

    $50.00 /hr
    378 hours
    4.80