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130

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CentOS Upwork freelancers typically receive a client rating of 4.85.

4.85
Last updated: August 1, 2015
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  1. Joan-Alexander Grigorov

    Joan-Alexander Grigorov

    OMG-Certified UML Professional

    Bulgaria - Last active: 10 days ago - Tests: 3 - Portfolio: 2

    Software Engineer over here! Domain-driven design enthusiast with passion for structuring flexible OO design with PHP. Certified as UML Professional (Fundamentals) by Object Management Group on December 2013. For the last 4 years I've been actively developing web applications using Zend Framework (since July 2012 I'm Zend Framework Certified Engineer). Expert in design patterns with over 4 years of professional experience. I'm developing enterprise web applications, file sharing systems, websites, web application frameworks, etc. Achieving high quality of code, good performance and reusable object-oriented software design is my primary goal when working. I don't underestimate documentation as my source code is always well documented, with end-user manuals when needed. In the last two years I've gained rich experience with Dependency Injection and Service Locators and successfully applied those approaches my projects. I'm always ready to learn new approaches, if they could make my work quicker and easier. I have experience in educating developers. I've been teaching students PHP, Zend Framework(basic and advanced levels), MySQL, jQuery, Design Patterns and etc. I'm seeking to develop big and complex web applications using the last technologies and software development methodologies.

    Groups: Zend Certified Engineers

    $20.00 /hr
    3,373 hours
    0.00
  2. Hasan Kurtoglu

    Hasan Kurtoglu

    PowerMTA Administrator and Deliverability Expert

    Turkey - Last active: 1 month ago - Tests: 1

    Have administration experience on linux/windows servers and MTA's. Have been managing PowerMTA servers since 2008,have deep experience on managing PMTA. Achieved sending 150K emails in a minute,1 billion emails in a month to inbox! Helped many companies setup their email infrastructure from scratch. Have helped setting-up several ESP infrastructures. Currently serving to many companies around the world on their sending infrastructures. Total volume of managed PMTA servers of the customers is nearly ~5 billion emails per month to inbox!( mostly :) ) Deliverability experience on mainly Hotmail,Yahoo and Gmail. Currently open to any PowerMTA installation,configuration,optimization and deliverability consultancy jobs. Please visit my references page to get an idea of my expertise : http://powermta.me/our-references Specialties: System Administrator PowerMTA Administrator Email Deliverability Specialist

    $120.00 /hr
    0 hours
    0.00
  3. Afsal Ep

    Afsal Ep

    Expert in Linux server Administration,SEO,Web Developer

    India - Last active: 27 days ago - Tests: 2 - Portfolio: 5

    I am an open-minded individual with a proven track record inLinux Server Administartions,SEOand creating Websites. I have strong technical skills as well as excellent interpersonal skills. I am eager to be challenged in order to grow and improve my communication and professional IT skills gained through previous experiences in the IT sector.

    $5.56 /hr
    0 hours
    0.00
  4. Jose Y.

    Jose Y.

    Systems Engineering/IT/Network Administration

    Philippines - Last active: 28 days ago - Tests: 7

    I started my career in IT way back 2005 as a computer technician on one of the university here in my country. After that i have been a professor for a semester and finally landed a desktops engineer job on one of the biggest BPO/callcenter in the world now. I worked in desktops team for 3 years on this BPO. This gave me the opportunity to enhance my knowledge in managing desktops, deploying images over 1000 workstations. Not only that i manage desktops and its underlying applications i was also supporting various networking and telecoms issues. After that i transferred to the systems engineering team up to this day. Being in the systems team i managed a heterogeneous NOS environment composed of windows 2003/2008R2/2012/Sharepoint, CentOS, ESXi/VMWARE, and Exchange 2003/2007/2013. With services like managing Active Directory, File Servers, DNS, DHCP, corporate emails and not being limited to spam filtering, patching and other corporate deployments. I also do backup and restore management and patching services using Legato, ArcServe, WSUS and Shavlik. I also managed servers with clustered disk, Network load balancing and other virtual environments specifically VMWare. With these experience in IT for 8 years i believe i can help your company produce a positive output for your company in the future. You can contact me on the following account: Skype: ncurses2 YM: metdeth1@yahoo.com

    $10.00 /hr
    0 hours
    0.00
  5. Luis Medina

    Luis Medina

    Linux System Administrator

    Mexico - Last active: 28 days ago - Tests: 5

    Linux system administrator with +10 years of experience working in IT environments across data centers, blade server farms, individual server and cloud servers. Currently working for a company with presence in 5 countries and operates through linux servers. Over 2 years of experience as IT engineer for Mobile Media company with presence in 12 countries. In charge of +25 linux servers and mission-critical server for 24/7 billing schedules. More than 5 years working as Linux server administrator on the local state university in charge of 52 servers and more than 15,000 users of services such as HTTP, HTPPS , (S)POP3, (S)SMTP , DNS , FTP, backups, etc. Experience with IBM blade, HP ProLiannt, HP Blade and Dell PowerEdge Servers Experience with VMware and XenServer virtualization environments. Extensive experience with RHEL, CentOS, Debian and Ubuntu Server. I run my own Linux servers to host my personal blogs with more than 100,000 monthly visits.

    $19.00 /hr
    0 hours
    0.00
  6. MD. MEHEDI HASAN

    MD. MEHEDI HASAN

    Customer Service & Support Web Scrapping eMail Admin

    Bangladesh - Last active: 1 month ago - Tests: 2 - Portfolio: 3

    Whether you need help with computer problem, data-entry, internet research & marketing I am here to help you. Answering consumer questions and helping resolving issues with a product or service over Email, Ticket, Phone 10yr experience in internet services. Provide network planning & solutions.

    $3.00 /hr
    0 hours
    0.00
  7. Taylor Locke

    Taylor Locke

    Web Developer

    United States - Last active: 12/19/2014 - Tests: 3

    I'm a passionate web developer based out of Los Angeles, California whom is always looking for new and exciting projects. I'm skilled in a variety of skills: - Web Development: Apache, Bootstrap, CodeIgniter, CSS, FuelPHP, HTML, Javascript, Laravel, Nginx, PHP - Systems: CentOS, Debian, FreeBSD, Windows - Databases: MongoDB, MySQL - Platforms: Drupal, Shopify, Wordpress I'm very fast with the projects I take on. I'm capable of pulling all nighters to finish projects in a timely manner for clients. A client's satisfaction is my top priority.

    $75.00 /hr
    0 hours
    0.00
  8. Zhirayr G.

    Zhirayr G.

    Agile web development

    Russia - Last active: 5 months ago - Tests: 3 - Portfolio: 2

    Hi, My name is Zhirayr. In my portfolio, are a few of the programs that I've developed. I believe my strong points are my Creativeness and Punctuality. My #1 goal will always be to meet your needs and deadline. When working on a new project, I like to speak with the client, so that I can have a clear understanding of his/her needs and vision of the project. I'm honest and fair. Since 2008, I'm freelance web developer. Mostly work with backend (big data, cluster programming, high load). Also from 2012, I develop Ruby / Ruby On Rails applications and websites. Thank you in advance for your time and consideration. I look forward to working with you soon. I have a Bachelors in Software Engineering from Moscow Aviation Institute (National Research University), in the Russia. Listed below are my experience and skills. — Ruby; — PHP; — Frameworks: Ruby On Rails, Sinatra, Laravel, Phalcon; — Core web: XML, JSON, HTML/CSS, JavaScript; — OS: Mac OS X, Linux; — VCS: Git, SVN; — Bug/Issue trackers: Jira, Assembla, Redmine; — SQL: PostgreSQL, MySQL; — NoSQL: Riak, MongoDB, Redis; — AWS: EC2, S3, CloudFront, ElasticBeanstalk, EMP, etc; — UML.

    $38.89 /hr
    0 hours
    0.00
  9. Neeraj Chand

    Neeraj Chand

    Asterisk/ VOIP/Video Conferencing Solutions Consultant

    Fiji - Last active: 1 month ago - Tests: 3 - Portfolio: 1

    Solutions architect and project manager with a strong focus on VOIP and voice driven applications including IVRs,pabx systems, and call center integration leveraging open source and closed source technologies to implement customised solutions. Flair for systems analysis and design with advanced communication and people skills. Specialties: Linux / Unix - Advanced Asterisk - Advanced VOIP - sip/iax -advanced Windows XP / Server - advanced Windows 7 - Intermediate Cisco routing/switches - advanced MSSQL - Intermediate MySQL - advanced Predictive Dialer systems - Advanced Excel - advanced c # - advanced Procurement / professional communication - advanced perl - intermediate Genesys Call Center Systems - Advanced Avaya - intermediate Current Roles / Achievements Responsible for all Voice / VOIP infrastructure across the OCIS group. Enhanced call handling efficiency by approximately 40% - via software upgrades and enhanced configuration. Developed enhancements to integrate with line of business systems and provide visibility on call patterns through visual tools. Added web based video conferencing, screen share and web chat to the portfolio of services available to all OCIS business users. Integrating Polycom auto provisioning systems with voice solution to make service delivery more robust and efficient. Currently developing intelligent routing systems for VOIP using EIGRP on cisco core devices. Integrating DUNDi, database functions, static variables from MySQL clusters with a self healing voip routing solution as the end goal

    $50.00 /hr
    0 hours
    0.00