Top Upwork Freelancers

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  1. Roger Paes

    Roger Paes

    Expert Java web developer (10+ years) SCJP/SCWCD

    Canada - Tests: 3

    I'm a Java developer with 10+ years of experience in the J2EE platform, having developed a wide range of web applications(frontend/backend) using the following tools and technologies: Spring 3, Angular JS, Struts, WAS, Oracle, Tomcat, Extjs, Mysql, EJB, JSP, UML, Design patterns, SQL, Hibernate, JSF, Eclipse, Maven, RTC, web services, JMS, etc. I'm seeking opportunities to build java applications from end-to-end.

    Groups: Sun Certified Professionals

    $16.67 /hr
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  2. Sivaram Vasireddi

    Sivaram Vasireddi

    Sr,Business Intelligence Consultant

    United States - Tests: 1

    Business Intelligence is not only my profession but also my greatest passion next to motorbikes. This is why I spend majority of my free time improving my skills, learning new concepts, technologies and tools. I get the greatest satisfaction when products I develop are released and people start using it - that makes me want to spend more time at work. Over 6 years of IT Experience in Data Warehousing and MicroStrategy. • Well versed with MicroStrategy product suite namely MicroStrategy Developer, MicroStrategy Intelligence server, MicroStrategy Web, MicroStrategy Report Services, MicroStrategy Dashboards, MicroStrategy Mobile and MicroStrategy Narrowcast Server. • Extensive experience in creating and integrating MicroStrategy Reports and Objects like: Attributes, Filters, Facts, Prompts, Custom Groups, Consolidations, Transformations, and Hierarchies with the data warehouse. • Experienced in creating Advanced Metrics, Advanced Prompts and Custom Filters by using Pass-Through Expressions in MicroStrategy. • Experienced in creation of Dashboards, Scorecards for better understanding of Business trends. • Strong skills of working with databases like Oracle, Teradata, and SQL Server. • Strong Troubleshooting skills in MicroStrategy Desktop. • System optimization, Performance monitoring and tuning experience in Multiple Environments. • Developed different scorecards and dashboards using MicroStrategy best practices as recommended by visual design experts, using selectors, widgets, multi-panels, etc.. • Experienced with complete Software development life-cycle (SDLC) including requirements gathering, analysis, design, coding, testing and deployment.

    $50.00 /hr
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  3. Eugen Martinchik

    Eugen Martinchik

    Head of Software Development (Team lead)

    Belarus - Tests: 1

    More than 10 years have experience in programming. I own all questions: writing of the specification; organization of team; development and support of a working product; introduction. I organized 2 teams on 5-7 people. I own knowledge of the majority of the .NET technologies. I work with DataBases on SQL, I programmed applications on Android and WindowsMobile. The main principle of work - quickly, qualitatively, steadily and with creative approach. If people are necessary - I can gather the whole team.

    $20.00 /hr
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  4. Maxim K.

    Maxim K.

    Senior Java Developer

    Russia - Tests: 8

    My primary specialization is backend programming: implementation of tricky business logic, database interaction and organization, web services. I have experience working for wide range of projects from small and short-term making everything from scratch to huge and comlicated enterise systems with tons of legacy code and hundreds of participants. Technologies: Java Swing, JSF, JSP, vaadin XML, JAX-* Spring, EJB, JMS JDBC, Hibernate Oracle, Derby, MySQL Maven, Ant Linux

    $30.00 /hr
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  5. Denis Yuvzhenko

    Denis Yuvzhenko

    C++, Qt developer

    Ukraine

    I have been working in computer programming since 2010. I have taken part in several software projects for customers from Ukraine, USA and Germany. Mainly C and C++ technologies were used in those projects. I have an extensive experience working with Java, Qt, Python. My primary responsibilities are system development and embedded development. Currently, I am working as a C++ Engineer. Methodologies: Object-Oriented Analysis and Design Technologies: Qt Languages: C++ , Lua , Python , HTML, SQL, bash Tools: MS VisualStudio , Qt Creator, Perforce, Git, SVN Operating Systems: MS Windows XP/7/8, Linux Other: Adobe Photoshop

    $5.00 /hr
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  6. Leandro Morelato

    Leandro Morelato

    IT Consultant

    Brazil

    Software developer/analyst with six years of professional experience in consulting and software companies, also having worked as a freelancer consultant. • Programming Language: C#/Asp.Net, Java, Javascript/Ajax, HTML, XML, CSS and SQL; • Development Tools: Visual Studio 2005/2008/2010, Netbeans and Eclipse; • Frameworks: .Net Framework 2.0/3.5/4.0, Ajax Control ToolKit and Telerik RadControls; • Database: SQL Server and Oracle; • Others Skills: Scrum, Windows (9x/XP/7/8), SVN, UML, OO and Design Patterns;

    $24.99 /hr
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  7. Dejan Rašić

    Dejan Rašić

    Excellent Software Engineering

    Serbia - Tests: 1

    Oracle database development including database dictionary, back-end modules such as packages, stored procedures, collections, cursors and other PL/SQL components. Writing complex SQL queries. Oracle Developer programing in Oracle Forms, Reports, PL/SQL. I also have a lot of experience as a Delphi developer. The most important knowledge: SQL, PL/SQL, Oracle, Forms/Reports, Delphi, Postgre SQL, MS Access, VBA I also have experience with: HTML, ASP, JavaScript, VBScript, JavaApplets, Assembler (mainly 8031)

    $10.00 /hr
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  8. Alexei Arhangelskyi

    Alexei Arhangelskyi

    C++ Qt developer

    Russia - Tests: 2

    Over the last 4 year, I have developed applications on C/C++ and Qt on embedded linux and desktop. For embedded linux I compiled qt library. I have participated in the development of several complex projects including development of equipment, construction and testing of experimental models. The model used serial ports, TCP, GPS tracking and varoius sensors to show the parameter value on the screen. Also developed on FPGA used Altera Cyclone 3/4. Previosly, 2 years ago I designed a SCADA system and develop additional control software for it using C++\Qt and C#\.Net. Also involved web programming at freelance site. I developed a site on Joomla and Drupal back-end plugins and pulled html template on this CMS. My main skills: Soft develop: GIT, SVN (switched from SVN to GIT) C++ & Qt4 (now learn Qt5) Python 2.7 MySQL, MSSQL, SQLite Hard develop: Embedded linux C\C++ (+ Qt4) Previously have worked with FPGA on Verilog and VHDL language My hobby skills: Web dev (hobby): PHP5, jQuery HTML, CSS Drupal, Joomla (create site, writing back-end pluggins, pulled html template) MySQL, MSSQL, SQLite

    $17.00 /hr
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  9. Marcello Aliverti

    Marcello Aliverti

    Software Engineer

    United Kingdom - Portfolio: 2

    With 4 years of experience, I have successfully developed functionalities in commercial products in C++ using STL and BOOST as well as other third party libraries such as OpenSG , H3D, ThinkCore by Think3. I have worked on real-time systems based on robotic devices, optical devices and aircraft simulation including multi-threaded and multi-process architectures where principally the data flow is over TCP/IP or UDP socket. I have taken part in various projects with the role of bug fixer and software integrator specialist. I worked for a financial firm as Quantitative Developer developing algorithms in C++ based on VBA or Excel prototype.

    $20.00 /hr
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  10. Pavel Slepenkov

    Pavel Slepenkov

    Salesforce Certified developer / salesforce consultant

    Belarus - Tests: 3 - Portfolio: 2

    Senior Software Developer with 5+ years experience in IT, I have designed and developed a wide range of web based business applications. I have experience in salesforce.com, IMB Lotus Notes and Java-related platforms. My core knowledge in Force.com platform is data management and implementation of complex business logic, system and data integration, front-end development. I have strong and diverse knowledge and 2+ years of comprehensive experience in: ► Apex, Visualforce, triggers, workflows, packages etc. ► JavaScript, HTML, jQuery ► Design of enterprise level salesforce.com applications ► ETL tools and processes (Data Loader, Informatica Cloud Data Loader) ► Legacy system/code optimization ► Development processes ► Migration legacy system into salesforce.com ► Usage of Salesforce.com CRM, Force.com, Database.com, Site.com ► If you need any additional information, you can contact me on Skype (pavel.slepenkov) ► more about me your can find in my personal blog: http://blog.pavelslepenkov.info/?page_id=41 also you can find the latest version of my CV here: http://blog.pavelslepenkov.info/?page_id=331

    $27.78 /hr
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