Top Upwork Freelancers

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  1. Justin Mitchell

    Justin Mitchell

    Product Designer and Developer

    United States - Last active: 3 days ago - Tests: 2 - Portfolio: 6

    I have worked in product design, development, and marketing for some of the most exciting startups in the world such as NXT-ID (Wocket Wallet), Accent Technologies, Zep Inc. and Torsh Talent. With my strong background in design, I've launched a very successful career in marketing and product development that has led to an amazing portfolio of projects and awesome experiences. You can checkout my portfolio online at http://jmitch.com.

    $40.00 /hr
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  2. Marius Kurgonas

    Marius Kurgonas

    Professional IOS, Android, Windows Phone

    United Kingdom - Last active: 12 days ago - Tests: 4 - Portfolio: 5

    I am a passionate professional mobile developer doing end-to-end native and cross-platform applications. The apps i have developed throughout the years range from small one platform apps to a cross-platform secure and sophisticated enterprise scale solutions. Client satisfaction and deadline sensitivity with highest quality are my top priorities. I am best skilled at the following: Mobile development: iOS, Android Game development: Cocos2d, Cocos2dx Backend: Parse

    $36.00 /hr
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  3. RamaSurReddy Mallidi

    RamaSurReddy Mallidi

    Informatica ETL Consultant

    United States - Last active: 17 days ago

    7 years IT experience in developing BI Applications Using Informatica, Oracle,Teradata,Sql Server,Unix ,Shell Scripts,PLSQL, Business Objects • Diverse experience in HealthCare,Sales & E-Commerce Domains • Secured CTS Wah&Scope Awards for my contribution towards multiple Projects • Secured HP E-Awards , Star Awards and multiple SPOT Awards for my contribution and Good deliverables across multiple projects • High working experience with Informatica PowerCenter transformations like Joiner, Router, Update Strategy, connected and unconnected lookups, Expression, Sorter, Filter, Union, Normalizer, etc. Also worked with varied sources and targets like relational tables, flat files, XML Editor, VSAM files, XLS,SAP etc. Aware of the basic administrative tasks with Integration Service, Repository Manager • Excellent skills in working with UNIX shell scripts. Developed shell scripts for feed file integrity checks, FTP activities and commands like ftp,scp,find, grep, pipe, cut, redirection and utilities like awk and sed • 1+ years of experience in dimensional modeling techniques like Star and Snowflake schemas using Erwin • Extensive experience with CA7,Tidal and Autosys job scheduler • Designed and developed EDW, DM and Data Quality Systems for prestigious clients Hewlett Packard, ACS, BCBS. • Strong in dimensional modeling such as star schema and snow flake dimensional models, Logical and physical data modeling and 3NF data modeling. • Strong in performance tuning of complex SQL queries • Involved in detailed Analysis, design, development, maintenance and upgrading systems to support business operations. • Created and Used Workflow Variables, Session Parameters and Mapping Parameters

    $33.33 /hr
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  4. Alexander Guba

    Alexander Guba

    Sr Oracle JD Edwards/PLSQL Developer

    Ukraine - Last active: 27 days ago - Tests: 1 - Portfolio: 1

    Over 8 years in Oracle JD Edwards implementation, development and integration. Excellent knowledge of all development tools (Report Design Aid (RDA) include XML Publisher with MS Word, MS Excel and PDF templates, Form Design Aid (FDA), Table Design Aid (TDA), Data Structure and Processing Option Design Aid (PDA)), Business Services (BSSV) and Java programming, Business Function (BF) C (caches, table I/O, etc.) and NER programming, Debugging Tools (ER and C), Object Configuration Management (OCM) Deep knowledg logistics (Master Data Management, Procurement Management, Sales Management, Inventory Management, Transportation, Warehouse Management, Supply Chain Management) and financial (Accounts Receivable, Accounts Payable, General Accounting) modules Strong knowledge Oracle Database 11g and PL/SQL. Design and development database objects: packages, procedures, triggers, tables etc. SQL optimization, traicing, unit test. Excellent analytical and problem solving skills

    $30.00 /hr
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  5. Vadims Zemlanojs

    Vadims Zemlanojs

    Certified Java EE developer

    Latvia - Last active: 1 day ago - Tests: 1 - Portfolio: 3

    I am certified J2EE developer having 3 java certificates: SCJP,SCWCD,SCDJWS. I can accomplish full programming cycle of web developing, including face and back side programming, that is proved by my own powerful and complex web portal which consists of an interactive online newspaper, blogosphere and ads board. In my work I use standard, or defacto-standard java technologies such as JSF, RESTful, Hibernate, JPA, EJB, JMS, YUI, AJAX,YUI/JavaScript and others, so that my experience can be useful in many companies and projects.

    $13.33 /hr
    0 hours
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  6. Thamilvanan G

    Thamilvanan G

    Hybrid and Native Android Developer

    India - Last active: 6 days ago - Tests: 1

    An experienced Android Developer having about 3 years of experience in Mobile Application development Skills: JAVA, AndroidSDK, HTML5,NFC APIs, Google Maps APIs, AWS APIs,Javascript, Jquery Mobile,SQLite, NoSQL - CouchDB,GIT o Ability to consume Web Services - XML and JSON o Experienced in developing Hybrid Applications using PhoneGap & JQuery Mobile o Strong expertise in NFC Technology - Reading and writing NFC tags using NFC devices, Secure element Access in NFC o Leveraging Google Maps APIs &Location APIs o Created Custom views in Android o Experienced in working with third party Hermes API o Experienced in rooting Android Device o Experienced in BLE (Bluetooth Low Energy) API o Developed HybridApp with Ionic framework, Angular Js and PhoneGap Plugins o Experienced in SQLite Database o Integrated Social API Facebook,Twitter in App PROJECT EXPERINCE: Project : NextQuestion Google Play :https://play.google.com/store/apps/details?id=au.com.touchtobuy.nextquestion Description: Next Question is a skill and time-based in-venue trivia application. It draws on an extensive database of questions, which is regularly updated. Live trivia games start every 20 minutes (during specific hours) and users can play for free. Prizes are offered to winning players. My Role: I provided the capability for each question to have different time limit based on the complexity of question. I provided the ability to give Half time score. I provided attractive animations and sounds to keep the user engaged until they finish the game. One of the Key aspects of the project: Customised CountDown Timer: In Android framework the Countdown Timer will not play the last tick. As a result, in the players’ devices, the game was not in synch. Therefore the default CountDown Timer in Android API was customized to meet the project needs. Used Crashlytics, to distribute the app and finding issues for the client. Project : BlueDot Parking Google Play :https://play.google.com/store/apps/details?id=au.com.touchtobuy.bluedotparking Description: Blue Dot Parking makes parking better for everyone. Using only your Android phone, you can pay for parking in marked areas. No more queues, searching for coins, or trying to get to a meter in the rain only to find it broken. All receipts are collated and can be emailed monthly, quarterly or annually. No more messy receipts for tax time. You will be charged for the time you use, usually in 15 minute blocks. A reminder is sent when there is 15 minutes left, to offer you the chance to add more parking. You no longer have to leave that meeting, or miss the game to go back to the meter. Project : YeldiAra Product Site : http://yeldi.com/ Description: A NFC based business application for Merchants which can do the transactions like Load, Pay and Recharge the Mobile, Data card and DTH through NFC Tag. Notification was implemented through Parse API service providing by Parse.com to engage the Customers with new offers. The WebServices were provided as XML and I consumed those services to provide the functionality in the App. Project:Food Express Description: A application for food lovers. Which is a Malaysian country based application, which shows the all the restaurants in Malaysia. The Application has features like Search restaurants based on Location, Category type, near by location and by Cuisine Type. A user can login into this application to rate and write the review about the restaurant and also having added to favorites. Once he loved the restaurant so whenever he wants to get the details of favorites restaurants he added, he can access it by logging into the application. Features: 1. 1.User can Book a table in a specific restaurant he wants to book for party or else. 2. 2.Everydata showing in search Results is Dynamic and getting it from live Web Services. 3. 3.Nearby features is working based on GPS. 4. 4.The searched result will show the details of restaurant like Address, menu, phone Number with Google map included to show the location of the selected restaurant to the customer. Project:Tag reader Description: Tag reader is a application which is Used to read the UID of the Corresponding NFC tag. I used file storage to store the UID's are stored in a file with specific file name in the external memory of the Device, Later we can send/upload this UID files using email Intent to the Server to Generate a Pin and account for this corresponding Tag alone for Further transactions using this tag. Project:Tag reader Description: Tag reader is a application which is Used to read the UID of the Corresponding NFC tag. I used file storage to store the UID's are stored in a file with specific file name in the external memory of the Device, Later we can send/upload this UID files using email Intent to the Server to Generate a Pin and account for this corresponding Tag alone for Further transactions using this tag.

    $4.50 /hr
    6 hours
    0.00
  7. Nuwan Wimalasooriya

    Nuwan Wimalasooriya

    Experienced .Net Software Engineer

    Singapore - Last active: 1 day ago - Tests: 4

    Personal Profile • 6.5+ years of experience with .Net technologies and extensive knowledge of software application development and design (Web & windows). • Specialized in MVC, WCF, Entity Framework (LINQ), SQL Server • Practical exposure about OOAD, TDD, RUP, Scrum and full SDLC. • Strong knowledge of OOP, UML, Design Patterns, SOA, ORM and RDBMS. • Very good analytical skills and good domain knowledge about business applications (Stock Brokering, Finance, University management Product plan management and Insurance Systems). • Hands on Experience in leading small teams for task delegation, task tracking and estimations. • Self-motivated team player with sound team building and leadership qualities • Out of the Box thinker and fast learner with solid problem solving skills. • Good communication and interpersonal skills with exposure of working with international clients. • BSc degrees holder in both Information Technology and Science. • Knowledge about Insurance domain and basic financial domain concepts Technologies and Skills C#.NET 3.0, 4.0, 4.5 & VS 2008, 2010, 2012 HTML,HTML5, CSS, JavaScript, jQuery, JTable, Angular JS ASP.NET, ASP.NET MVC 3.0,4 0, SQL Server, SQL Entity Framework, ORM,LINQ ASP.NET Web API, REST, Amazon Cloud Hosting SOA, Web Services, WCF, WPF/ Silverlight, RIA Crystal Reports, MS Reports, Telerik Reports DW Concepts, SSIS, SSRS SVN, TFS, IIS, XML,UML, MS-Test Working Experience  Senior Software Engineer: May 2014 –Preset NIE (Singapore)  Software Engineer: July 2013 –April 2014 SIMTech (Singapore)  Software Engineer: March 2010 –June 2013 VIRTUSA (Pvt) Ltd  Ast. Software Engineer : Sep 2008 – Feb 2010 Aklo Technologies (Pvt) Ltd  IT Lecturer : March 2008 – August 2008 OpenArc Business School  Demonstrator: October 2006 – October 2007 University of Ruhuna

    $11.11 /hr
    0 hours
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  8. Zoltán Kis Gergely

    Zoltán Kis Gergely

    software developer

    Hungary - Last active: 23 days ago - Tests: 9 - Portfolio: 3

    In recent years I have created dozens of dynamic webpages, and their server-side, backend processes. All of my webpages are coded manually, I take care of cross-browser compatibility and beeing W3C compliant, therefore I do not use any automated website generator. Software environment: Linux bash script, JavaScript, HTML, CSS, XML, XSD, Other skills: XLS, XLA, C++, PHP

    $20.00 /hr
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  9. Ross N.

    Ross N.

    .NET Web Developer

    Canada - Last active: 14 days ago - Tests: 3

    Highly skilled and proficient developer from Canada looking to earn money as a freelancer to help fund the missionary work my wife and I do in Central America. As a web developer I am passionate about delivering a level of code-quality that exceeds the industry standards. I stand behind all my work and have experience in many areas. In depth knowledge and expertise in development technologies, architecture and related technologies like .NET Framework, ASP.NET 4.5, ASP.NET MVC 5, C#, Entity Framework, LINQ, ADO.NET, Web Services, Windows Services, Web API, REST services, oData, SOA, ORM, OOPs, MS SQL Server, MySQL, MVVM, WPF, XAML, Design Patterns, Windows Azure, SQL Azure, Unit Testing (TDD) - NUnit, MSTest, SaaS, Ninject, IoC, Dependency Injections, etc. Client Side like Javascript, Jquery, AJAX, HTML5, CSS, Twitter Bootstrap, jQuery UI, JSON, XML, etc. Source version controls like git bash, Tortoise HG, Tortoise Git, Tortoise SVN, GitHub, TFS, etc with scrum/agile methodology like PivotalTracker, Altassian JIRA, Altassian Bitbucket, etc. Continuous Integration servers like TeamCity, TFS, Visual Studio Online (VSO). Services: - N-Tier Application Development - WPF application Development and Maintenance - Web Application Development and Maintenance - Mobile Application Development and Maintenance - E-Commerce Application Development and Maintenance - ASP.NET/MVC 4/5 Application Performance Optimization and rewriting codes / design - Microsoft / SQL Azure Server development - Windows Server installation / configuration / deployment / management - Payment Gateway Implementation - Response Web / Mobile Design - Windows Services / Web Services / Web API / API Development / XML Services / oData development - Generation of Dynamic PDF / Excel Spreadsheet - Server Administration / Website Deployment / Management / Maintenance - Social API Integration like Facebook, Twitter, etc - Source Version Control System configuration

    $28.00 /hr
    0 hours
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  10. Alexander Kleymenov

    Alexander Kleymenov

    Ruby & Ruby on Rails Developer

    Russia - Last active: 12 days ago

    Languages: • Ruby (Ruby on Rails), JavaScript, C++, PHP (4,5), SQL, PL/SQL, C, XML, UML, Assembler, Haskell Software: • Databases: Oracle (9i,10g), MySQL, PostgreSQL, MS SQL • Platforms: Linux, Solaris, MacOS X, Windows CASE-tools • CA ERwin Modeling Suite, IBM Rational Software Modeler Metodology, standards and technologies: • PMBOK, IDEF(0,1,1X,2,3,4,5), SOA, OLAP, Data Mining • GOSTs 34.th, 19.th Full cycle of implementation of information systems: Predesign inspection, including formalization of business processes, negotiations and presentations for the Customer. Maintenance and support of information systems. Specs: mathematician, system programmer

    $27.00 /hr
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