Top Upwork Freelancers

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  1. Arturo Mejia

    Arturo Mejia

    Expert Android Developer

    Dominican Republic - Last active: 2 days ago - Tests: 10 - Portfolio: 8

    I am a proactive person with solid experience in software mobile development, dedicated to providing strong and quality technology solutions. ★Native Android Development. ★Native iOS Development. Lover of technology, challenges and the knowledge. I'll be glad to help you :) For more info please check my portfolio and my Linked in Profile-> https://www.linkedin.com/in/arturomejiamarmol Experiences: Process of publishing/updating apps on play store Process of publishing/approval/updating apps on ITunes store

    $10.00 /hr
    54 hours
    5.00
  2. Stepan Govorko

    Stepan Govorko

    Expert C# Developer

    Russia - Last active: 1 day ago - Tests: 1 - Portfolio: 7

    I`m always paying a great attention to a code and architecture quality, bugs-free and stability of applications. My goal is to participate in an interesting large-scale project and to establish a long-time collaboration with customer. Summary: • Skilled IT graduate with 7+ years of software development experience, particularly within Microsoft development environment using C# • 4+ years real world working experience in WPF, Silverlight, XAML, Prism • 3+ years experience on Windows Communication Foundation (WCF) and SOA • 2+ years experience creating .NET Web Applications • Experience in working with Design Patterns & Practices • Experience in developing n-tier applications • Experience in developing high-load asynchronous applications • Experience in developing data access layers using Entity Framework • Experience in working with GIS (ArcGIS) • Good Experience with third party components like Telerik, DevExpress, yFiles • Knowledge of creating Unit Test plans and scenarios • Great experience in working with large hierarchical graph model

    $22.22 /hr
    396 hours
    5.00
  3. Saul H.

    Saul H.

    Java/C++/.Net Software Engineer/developer/integrator/consultant

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

    Knowledge Areas and skills Custom Software Development, POS, intranet system, administrative systems and integration with intelligent software solutions consolidate, organize and centralize amount of information located in different divisions and departments, so that executives make decisions about payments, suppliers , prices, materials management, promotions, etc. Algorithms and programming skills, strong knowledge of C/C++ and Java. Strong knowledge of data structures, strings, sorting, arithmetic and algebra, combinatorics, number theory, backtracking, graph traversal, Algorithms for graphs, dynamic programming and computational geometry. Accounting area, experience in handling all movement of materials between stores and shops, all the accounting related to its retail. Point of sale Area, experience with integration between POS software and label printers, fiscal printers, barcode readers, fingerprinter and keyboards for point of sale. Oriented Object Programming and Low-level: exprienced in Java and C/C++/C#. QT libraries and Visual Basic. Scientific Programming: Matlab. IDES: Intellij Idea, Eclipse, Netbeans, Kile, Quanta. Servers: Apache-Tomcat. Functional Programming and AI: Haskell and Prolog. Database: MySql Oracle, Postgres, SQL Server and FoxPro. Web Development/Frameworks: Php, Struts, Vaadin, ZK, html and css.

    $30.00 /hr
    1,756 hours
    5.00
  4. Muhammad Rehan Abbasi

    Muhammad Rehan Abbasi

    Free Lance Application Developer

    Pakistan - Last active: 2 days ago - Tests: 4 - Portfolio: 4

    I am Software Developer by profession carrying an Engineering Degree in Computer Software. I am very determined and eager to prove my skills and competencies. I carry a good experience of over 3 years in software application development using a wide variety of tools. My core competencies include C#, C++, Java, ExtJs and Java Script programming languages. I am also quite comfortable with database tools & technologies such as SQL Server, MySQL and Oracle.

    $7.78 /hr
    469 hours
    4.92
  5. Dmitriy K.

    Dmitriy K.

    Full-stack java developer

    Russia - Last active: 18 hours ago - Tests: 9

    Hello! My name is Dmitriy, I'm a passionate programmer. 10+ years of professional expertise in the Information Technologies industry. Rich expertise in Java SE/EE and related technologies (Core Java, Servlets, JSP, JSF, JDBC, Spring, Hibernate) Expertise in mobile development (Android platform, Apache Cordova, PhoneGap) DB design and development (Oracle, Postgresql, Elasticsearch, MongoDB) Client/server systems architecture and development Specialties: Java8 (Java Core, Spring, Vaadin, Guava, JSF, JDBC, Multithreading, Build environments: Ant, Maven); Clojure + Clojurescript with Om / Reagent; Groovy + Grails; HTML-CSS-JavaScript: jQuery, AngularJS, Bootstrap. Machine learning: Encog, Weka, R. Have a strong interest in functional programming languages (Clojure, Scala, Erlang, Haskell). Have some experience with Apache Mahout recommender engines. https://github.com/kagel

    $27.00 /hr
    26 hours
    5.00
  6. Eugene S.

    Eugene S.

    Professional Developer

    Russia - Last active: 3 days ago - Tests: 3 - Portfolio: 4

    I have years of experience with C/C++/C#, .NET, ASP.NET MVC, JQuery, SQL, LINQ, Entity Framework, TSQL, etc.I managed to work on various projects, have developed a number of websites and services for international companies as well as desktop applications for the small business. I have skills with wide set of Microsoft technologies. Also I have skills with Delphi, VB, have graduated Math dept and am seeking interesting projects with great wish to collaborate.

    $16.67 /hr
    53 hours
    5.00
  7. Ulisses Righi

    Ulisses Righi

    Systems Administrator, SharePoint MCSE, Windows Server MCSA

    Brazil - Last active: 1 day ago - Tests: 12 - Portfolio: 5

    Hello! I am a systems administrator and SharePoint Expert with more than nine years of experience in the field. I have worked from start-ups to Fortune 500 companies supporting, managing and administering Microsoft Server products, including Exchange, SharePoint, Lync, Hyper-V and SQL Server. I am a Microsoft Certified Solutions Expert on SharePoint 2013 and a Microsoft Certified Solutions Associate on Windows Server 2012. For five years, I have administered and provided support to Exchange 2007 and 2010, Lync Server, SQL Server 2008 and 2012, Hyper-V, VMWare ESXi, BlackBerry Enterprise Server, Postfix and Apache. My interests are in cloud services and information management. I have also lead a small team on a very complex Lotus Notes to SharePoint 2007 migration project for one of the largest electrical companies in Brazil, which brought me experience on team management and software development. I'm looking forward to help companies achieve their goals through my expertise and excellent work ethic. If you want to have a look at my MCP Transcript, please access https://mcp.microsoft.com/Anonymous//Transcript/Validate and enter the following information: Transcript ID: 781542 Access Code: tsulissess

    $31.70 /hr
    103 hours
    5.00
  8. Aaron H.

    Aaron H.

    Cisco UC Specialist/Expert - 10 Year CCIE

    United Kingdom - Last active: 17 days ago - Tests: 3 - Portfolio: 2

    A specialist in the full range of Cisco Unified Communications with full CCIE Voice qualification dating back 10 years, and over 15 years experience in IT primarily as a Cisco Channel Partner lead engineer in the UK. Strong design, deployment, administration, development and troubleshooting skills in: Communications Manager (CUCM/CallManager from version 3.1 to 10.5) Communications Manager Express Voice Gateways (TDM, Analog), CUBE/SIP, H.323 Contact Centre Express (UCCX/IPCC Express) Scripting, Deployment and Custom Reporting with Historical Reporting Client (HRC) and Cisco Unified Intelligence Center (CUIC) Presence/Jabber, Unity (Voicemail, Unified Messaging) Cisco UCS and VMware Unified Attendant Consoles (CUBAC, CUDAC, CUEAC, Attendant Console Advanced/Standard, and ARC Premium) I also have extensive networking experience, as well as significant experience with Microsoft Windows Server/Exchange and associated technologies and products. I have development skills in Java, MS SQL and Informix and various other scripting and programming languages such as PowerShell. I have experience with many Cisco-specific APIs especially with UCCX and CUCM.

    $100.00 /hr
    201 hours
    5.00
  9. Bhushan Katariya

    Bhushan Katariya

    Microsoft Windows and Exchange Analyst

    India - Last active: 1 month ago - Tests: 3

    A Highly motivated and result-oriented individual with over 10 years of experience in a professional environment having a great work culture and meticulous attention to detail with emphasis to customer satisfaction. Ability to achieve set targets and goals in a timely manner. Microsoft Certified System Engineer in Windows Server 2003 with Exchange and Technology Specialist in Windows Server 2008. Extensive hands-on experience in configuring, monitoring, upgrading, migrating and maintaining systems running Microsoft Exchange Server suite (2003 to 2013). Extensive hands-on experience in configuring, monitoring, upgrading, migrating and maintaining systems running Microsoft Active Directory Services(2003, 2008). Extensive hands-on experience in configuring, monitoring, and maintaining systems running Microsoft Cluster Services. Extensive hands-on experience in configuring, monitoring, upgrading, migrating and maintaining systems running Microsoft SharePoint Services(MOSS 2007). Troubleshooting Windows Server related issues(AD, DFS, IIS, DHCP, DNS, and WSUS) Projects, Installations, Configurations and Migrations etc. Configuring and troubleshooting on Mailbox, CAS, and Hub and Edge server roles installations. Configuring High availability solutions like Local Continuous Replication/Cluster Continuous Replication/Standby Continuous Replication technologies. Troubleshooting on Mailbox Migration, Public Folder replication, Database Inconsistency, Exchange services, Offline Address Book, Recovery Storage Groups. Implementing Disaster Recovery in exchange servers for recovering exchange information. Configuration and Troubleshooting External Mail flow (Inbound/Outbound), Mail flow between servers, Spam issues, Edge Synchronization. Configuring Anti spam/Transport agents, Application Relay, SMTP/Transport service problems. Analyzing and evaluating issues using various tools and utilities like EXBPA, EXTRA, ExMon, PFDAVAdmin, Exmerge, DCDIAG, NetDiag, NLtest, telnet, Replmon, AD modify, ADMT, MFCMAPI, etc. Installation, Configuration & Monitoring of Trend Micro Internet Messaging Security Suits & Symantec Endpoint Security. Basic Hygiene & Server hardening of all Windows OS, Linux OS & Subsystems likes IIS, ADS, and SQL Server etc. Security Health Check of all Windows & Linux OS. Ensure documentation of all activities & procedures adhering to organization standards.

    $13.33 /hr
    316 hours
    4.83
  10. Igor S.

    Igor S.

    Linux administrator, bash and powershell scripting

    Russia - Last active: 28 days ago - Tests: 2

    Hi, I’m a professional Linux,Oracle,Weblogic administrator with 8 years’ experience. I do enjoy to automate all tasks on Linux and Windows. I’d like to offer my services to you. I am very effective in: Linux System Administration: installation, configuration and repairing . Scripting : I am very experinced with it. I can automate all the tasks on Linux(bash,python,php-cli) and Windows(powershell). Oracle Database Administration :Installation, configuration, maintainance and troubleshooting Oracle 10g, 11g on various Linux and Windows platforms. Weblogic Administration : Installation and application deployment.

    $9.80 /hr
    30 hours
    4.98