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  1. Alexandros Marnikas

    Expert Oracle Java Developer

    Greece - Last active: 3 days ago

    I started my professional career in Vodafone as Software Engineer. My team developed and maintained projects for the Vodafone’s network. We worked with SQL loader to load data in Oracle 8i. Within Oracle database i developed procedures and packages to create statistics for the traffic of Vodafone’s network at PL/SQL. Moreover one major fact was the development of the payroll application for the Greek public sector using Oracle 8i as database and Oracle Forms and Reports 6i for the presentation of the data. Additionally one major fact was the development of a new project in Intrasoft International for OLAF. The project manipulated the information provided by OLAF officers and the aim of the project was the calculation of the risks for the vessels and containers approaching the European coasts or passing the European borders. The database was Oracle 9i and ColdFusion was the Software for displaying data in Screens. At the second stage the application server was BEA Web logic 6 and Java (bean and servlet) to promote the data on the screens. I was the designer of the database using 3NF model designing index strategy, triggers using high SQL performance tuning. Also i was the developer of the project using PL/SQL Coldfusion and i assisted the implementation in Java. Also i developed projects using Java in Mediation system to implement the traffic going to Billing system. There were complicated rules for the billing system, selecting the correct data according to some characteristics receiving the correct tariffs. Also I had used retention policy in some cases to give priority in selection queries to create statistics (use of database as data ware house and business intelligence) and sometimes I gave priority in the completeness of the billing cycle (used as OLTP database) and in transactions. Another project I was involved was the reception of Web Services (concerning network results) transforming data using Json objects and passing them in jsp using Ajax. We used jQuery to display the data on screens (div, css and other html elements). During this implementation i solved problems concerning the various browsers and especially Internet Explorer (i have downloaded Development tools to have in screens all Internet explorer versions) and for this reason i used jQuery which gives the opportunity to work all the html elements in all browsers including Internet Explorer. Nevertheless to face all problems i used special features in css only for Internet explorer 7 and 8. In addition i have worked in a project for the Greek customs. I am responsible to deliver some parts to the client. These parts concern all the major software components started from JSF, Java, JPA Workflow Spring MVC and at the end Oracle 11g. I have installed Oracle 11g in Linux environment using OFA (Oracle Flexible Architecture). I am responsible for monthly backup (consistent full backup). I also faced problems concerning all database problems (for example problem with tables, synonyms, and users’ quota in table spaces). Moreover i have developed rules with Java for the business of the project. The functionality of the project is the exchange messages xml using JMS and checking the integrity using xsd files. The data of the message are being transformed in objects passing validation according to some rules and then are loaded at Oracle 11g database. The framework used to load data is JPA using JPQL language. Within project i use Spring Webflow MVC for the dynamic navigation decision. In addition I use Oracle Enterprise Manager to change initialization parameters like the archiving of the database (set in archive log mode the database) memory (maximum and target memory) check the performance of the database using the advisors like memory advisors, sql advisors from which I can find database problems like bad writing queries and index missing. Moreover I have created a prototype using JSF 2 with rich faces 4 and Spring Web flow MVC 3.1. After the creation of the prototype we have implemented the screens at JSF. The screens have been accepted by the client. At the second stage we have implemented the validation, submission and the search results using JPQL. The configuration has been implemented using JTA and the provider for the JPA is OpenJPA . At the search i have proposed to use dynamic SQL using JPQL. In addition i have created the database Oracle 11g 2.0.3 at Linux Red Hat using Optimal Flexible Architecture. After the creation i have changed database settings to suit to our needs. This prototype includes the configuration of Eclipse Juno, Apache Tomcat 7 as Application Server and maven. In addition i have a knowledge of IBM Rup disciplines methodologies and UML diagrams. In Analysis we retrieve the requirements we fix class diagrams then the use cases from use cases the sequence diagrams.

    $16.67 /hr
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  2. Kate Volkova

    Kate Volkova

    Project Manager

    Russia - Last active: 6 months ago - Tests: 3

    My skills cover a variety of areas including management, analysis, research, creative and technical writing and more. Now I am looking for something new as previously it was mostly office work. I am eager to work at start up and to make something really useful. Project manager with an engineering background and management skills in QA, Telco and Banking. • Expert in QA • Good skills in system analysis • Familiar with Telco and Banking business and technology • Successful manager in banking software implementation and support • Experienced user in Imaging & Printing, Project and Portfolio Management systems, CRMs, Office applications • Familiar with ITIL/ITSM concepts and techniques

    $20.00 /hr
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  3. James Shea

    James Shea

    Change Leader/Portfolio Program Manager/Process Optimizer/

    United States - Last active: 18 days ago - Tests: 1

    I am a skilled program executive with over twenty-five years of delivering programs in a variety of industries; including full ERP systems implementations (Peoplesoft, Oracle SAP Hana), SaaS solution including Salesforce and Workday. I am very familiar and experienced with the SDLC, Waterfall, RUP, Agile, utilizing scrums for successful delivery of major technology programs. I am and have led CMM compliant development projects across a very complex set of applications solutions. More recently I have been responsible for the development and implementation of a global data management strategy and model to support business forecasting and reporting. Responsible for driving and completing the CCAR modeling process for liability products for a large global insurer. Leveraging lean thinking and six sigma has enabled the process improvement programs I have led to achieve substantial gains across, finance, human resources and data intensive marketing functions. I am looking for a challenging role to help drive the success of the business and the people who make it all happen. One of my key critical success factors has been my ability to collaborate and work across an organization to get virtual teams moving as "ONE". It is exciting to grow and develop teams both technical and non technical. I have the experience to play a role in the successful delivery of key programs.

    $200.00 /hr
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  4. FABIANE SANTOS DE SOUZA

    FABIANE SANTOS DE SOUZA

    IT Business Analyst/ Requirements

    Brazil - Last active: 02/26/2014 - Tests: 2

    Requirements elicitation, analysis, specifying and validation. Elicitation and analysis using the main Market techniques (Business modeling, interviews and jade) to identify the business and users’ needs, and define project scope. Specification and development following with methodologies based both on RUP and Scrum. Great knowledge in BPMN, UML and Database modeling. Software metrics notions. Fluent in English. Extensive experience in prototyping and interface systems. Good knowledge in testing.

    $45.00 /hr
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  5. Gaston G.

    Gaston G.

    Senior Web/Desktop developer

    Peru - Last active: 09/13/2013 - Tests: 1

    Over the last years, I have developed a wide range of corporate websites using asp, asp.net, visual basic 6.0, visual c# 2005, ms sql server 2000, 2005 and 2008. I know relate techs like CSS, HTML, jquery, json. My core competencies lies in a strong desing of app tiers, like data tier, business tier and client tier. I also have strong knowledge of t-sql for sql server. I have had a lot of stored procedures, trigger, scalar and table functions. I am seeking perfection in my work all the time. I know perfectly uml and rup. I am a excelent database modeler, I work with architectonical designs for this goal. My knowledge about c# is from 7 years ago when i decided work with this language. Nevetheless, I have worked with visual basic 3,4,5,6,2005 for more than 10 years. In the last 2 years I have been working in a desktop app for commercial warehouse. This app was developed in c# 2008, .net framework 3.5, sql server 2008, nettiers 2.3 with codesmith tools. This app can be the basement for future developments.

    $11.11 /hr
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  6. Bács A.

    Bács A.

    Business Analyst, MBA/DESS

    Hungary - Last active: 02/02/2014

    IT Business Analyst with software development background. Experience managing whole project lifecycle from requirement gathering to implementation and user training. I have worked effectively with individuals at all levels, at different functional areas (end user to management level) at the side of IT solution providers, procurers and consultancy companies as well. Gained experience working for prominent Hungarian financial institutions as a software developer/project coordinator, business analyst. As middle manager I was responsible for the complete IT infrastructure of a credit institution. Major domain specific areas of expertise: document management; electronic form processing; customer relationship management (CRM); workflow management systems; credit management systems, electronic channels. Tools and methodologies: RUP, Agile, OOP, Rational, GENT, Adonis, Aris, Microsoft Office, MS Project, SOA oriented approach, XML, SGML. Ability to work in english, french, hungarian and romanian languages. Primary objectives: IT business analysis, requirement gathering and management, modeling, writing requirement specification, functional modeling, writing user and technical documentation. Available also for tasks as: project management, writing test plans, testing, support and maintenance activity.

    $22.22 /hr
    0 hours
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  7. Alonso Guillen

    Alonso Guillen

    Computer Scientist/Big Data/C++/Java/C/Python

    Peru - Last active: 09/13/2014 - Tests: 2

    Hello! I'm a Computer Science student currently in the last year of my career. My strong area is programming. I dominate C++, Java and C programming. I have a great backup in algorithms, data structures, unit testing, software engineering (UML, RUP, patterns, XP, Agile).

    $15.00 /hr
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