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Unix Upwork freelancers typically receive a client rating of 4.70.

Last updated: October 1, 2015
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Grover McCoury

Grover McCoury


United States - Tests: 6

Accomplished professional with a proven ability to deliver quality services/products in the insurance, financial services and software engineering industries.I have experience in office activities, customer service, sales, insurance, residential/commercial finance and marketing. I also have designed, implemented and tested software for several data/telecommunications systems within my engineering career. Have extensive software engineering, technical writing, networking, testing and computer (Mac OS, Windows, Microsoft Office) experience.

$13.89 /hr
235 hours

Ted Parvu

Ted Parvu

Technology Consultant

United States - Tests: 2

As a Technology Consultant, I seek to use my skills and abilities to leverage technology to help you achieve your goals. I possess very strong skills in UNIX C programming, UNIX system administration, and computer security. I am skilled in systems integration, engineering, and testing. I also maintain a variety of other skills such as web administration, Microsoft systems administration, network administration, database administration, and technical support. Counted among my programming skills are C/SQL, artificial intelligence, data acquisition and analysis, as well as real time control systems. I am also versed in web, and network programming. I have over 28 years of professional technical experience. My security services include penetration testing, training, audits, intrusion detection, hardening, policies, code review, and disaster recovery. I am skilled in the application of a wide range of technology. Some examples include technical document writing, GPS, wireless and cellular, solar and alternative power systems, electric fencing, audio visual systems, surveillance and wildlife cameras. My expertise and experience in Systems Engineering and Integration enable me to develop tailored systems using off the shelf and customized hardware and software. Through a lifelong passion for the wilderness, I have picked up a variety of outdoor skills. Some of these include; navigation, tracking, canoeing, foraging, and shelter building. I am very comfortable working in the wilderness. I attended college at the University of Arizona where I worked with Optical Scientists and Astronomers as part of a team developing world-renowned observatories. Not satisfied with a traditional degree, I went on to get a degree in the fields of Computer Science, Mathematics, and Philosophy, with a focus on Artificial Intelligence. Over the years I have worked with small startups to Fortune 50 corporations. Some of the companies I have worked for are Pretty Good Privacy (PGP), the North American Bear Center, the Wildlife Research Institute, the British Broadcasting Corporation, NDC, Motorola, Steward Observatory, and Hughes. Of all the skills I possess, the two that have served me best are my problem solving and ability to learn new subjects. This coupled with my decades of professional experience enables me to help you solve your unique technology needs.

$60.00 /hr
103 hours

Chris Giddings

Chris Giddings

Experienced 20yr Technology Veteran - Achiever

United States - Tests: 1

As an experienced veteran of a complex and often misinterpreted industry I can guide you through almost any technology project. Those limited parts which I cannot handle on my own I have others who I work with to complete at no additional cost to you. Whether you're looking to build a simple web page, design a complex web or mobile application or are looking for someone to fill in and help you complete or manage a project I'm your guy!

$88.89 /hr
0 hours

Kelly Hawkins

Kelly Hawkins

Sr. Telecommunications Engineer/Implementation Manager

United States - Tests: 1

Versatile Telcom Professional with over 15 years experience, designing, implementing and provisioning voice/data and mobile networks for fortune 500 service providers. Solutions-oriented project lead and subject matter expert with hands on knowledge of GSM/UMTS/LTE and VOLTE networks.

$20.00 /hr
504 hours

Alexandros Marnikas

Expert Oracle Java Developer

Greece - Tests: 1

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
0 hours

Eli P.

Eli P.

Unix, Linux system administrator

Israel - Tests: 1 - Portfolio: 1

In my work experience below you'll find over 15 years of Unix and Linux system administration including network administration, database administration and systems programming with Perl, shells (Bash, Csh, Tcsh and more). Part of being a system administrator required many things of me such as: team work, technical writing, project planning and problem solving. Also, a big part of system administration is learning new technologies on a regular basis. Some examples of useful technologies I've learned on the job are: Chef, Puppet, Cloudstack (Apache), AWS, S3, Nginx and much more. As part of system administrator I was responsible for Web servers (Apache, IIS, and more), Database servers (Oracle, Sybase, Postgres, Mysql), file servers, ftp servers, ssh servers, build servers, Email servers in both software house environments and support environments. Perhaps one of the best examples of administration I've encountered in my experience is Network administration which includes systems of all kinds, project management and infrastructure skills which have helped me become an important asset in many IT environments.

$22.22 /hr
2 hours

Sonia Thomas

Sonia Thomas

Software Testing/Perl/Python scripting

India - Portfolio: 7

>> 7+ yrs experience in IT industry >> 5 * rating in all projects >> Most of the clients repeat projects with me >> Specialty ========== 1. Software Testing --------------------------- -- Functional Testing -- Browser compatibility Testing -- Usability Testing -- Regression Testing -- Vulnerability Testing -- Test case preparation -- Bug reporting/tracking 2. Training/Tutoring --------------------------- -- Perl scripting -- Python scripting 3. Technical Writing --------------------------- -- Agile User stories >> Personal Traits =============== -- Quick learner -- Self starter -- Sincere and cost effective service guaranteed

92% Job Success
$11.00 /hr
500 hours

Wojciech G.

Wojciech G.

IT expert, native Polish speaker for your service.

Poland - Tests: 1 - Portfolio: 3

Native Polish speaker, experienced IT expert. Professional translator with huge experience on various fields, from technical documents, through travels, medicine and online gambling to software and complete websites. For example I'm the author of Polish version of, world's largest freelancing website. I can assure perfect language skills, perfect grammar and style. I've written and translated lots of various types of texts: technical articles, travel texts, official documents, made complete localization of large software packages etc. Thanks to my IT background, I can handle all technical aspects of translation like character encoding, converting texts and databases, choosing fonts -- all aspects that typical translator hasn't even hear about!

97% Job Success
$16.00 /hr
1,280 hours