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Postfix SMTP Server Upwork freelancers typically receive a client rating of 4.80.

Last updated: October 1, 2015

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Roman Gorodeckij

Roman Gorodeckij

Full-stack engineer / Python Developer

Lithuania - Tests: 4 - Portfolio: 3

Previously: Dell inc. as Senior Software Engineer, Barclays as Senior Cloud/Unix Engineer. Specialties: High Availability Systems, Clustering Environments, Cloud Computing, Unix environment Primary Skills: Development, Scalability, Deployment in other words SOA and REST is everything in IT. 3 Years python/django developer with 7 years of PHP background. 10 Years of Linux administration. 1 Year of Openstack development, deployment Some technologies which I've been using recently a lot: ansible, chef, saltstack, mongodb, cassandra, redis, rabbitmq, celery, node.js, angular.js [bootstrap, google materials], ceph, nginx, gunicorn, zeromq, sensu, logstash Disclaimer: oDesk is not perfect. Sometimes you've got a client with low response rate, when project goes for months, and in the end, client appears to be doesn't know difference between backend and front-end and API terms.. And we ended up with a work which client didn't intended me to do. He didn't check my results even once during 1 month period! I'm trying my best, but sometimes there's conflicts between which technology to use, while I've been hired to code with flask framework, client requested to use other framework which I've been not familiar with. It's no problem to learn it but, I'm not into legacy stuff so I've refused to processed, at least because, as always, I'd be the one to blame, when their proposed solution, would fail their expectations. This would end up in blames regarding my competence in my field, although the solution was not meeting our use-case :) Please choose technology responsibly, and only if you're an expert in that field, and not because "you've heard it somewhere" :) If you're a client who wants a time saver in your team, a guy who knows his field as best as he can, a person who will bring you valuable solutions, I'm the one to go with. But all above works only when you trust me and you'll communicate with me constantly.

92% Job Success
$30.00 /hr
1,021 hours

Francesco Prior

Francesco Prior

Asterisk Professional, dCap Certified

Argentina - Tests: 3

I'm an Asterisk Professional. I'm very interested to solve issues or create solutions on Asterisk Environment; I know in deep Dialplan flow, how to manage interaction between Asterisk and Database and troubleshoot issues on pure Asterisk systems. I'm dCap Certified by Digium Inc. I was speaker during Astricon 2012, Astricon 2013 and ElastixWorld 2013. Titles of speech were: "Asterisk: dongled!" and "Asterisk and Database". I'm Italian but since 7 years I'm located in Argentina. I'm continuously active in research, solving problem and learning.

$38.89 /hr
0 hours

Apu Ghose

Apu Ghose

Expert PHP Developer

Bangladesh - Tests: 3

Hi, I have about 9 years of experience in the field of IT, especially in SEO, developing web based software, website, e-commerce site, auction site, Android and iPhone Apps. I have extensive knowledge in OOP and MVC framework such as codeigniter, Yii, etc. In addition, I am very good in wordpress, joomla, prestashop. I strongly feel that my 9 years of experience in PHP, AJAX, JavaScript, Jquery, CSS, HTML, DHTML, XHTML, MySql, Oracle, Objective-C, C, C++, C#, Java, VB, ASP, LISP, prolog, Assembly Language (MASM), WML, WMLScript, MATLAB would satisfy all the necessary qualities required by the clients. As I have handled many critical issues as a team leader, I think I am the best to lead in the critical areas of coding and help the software engineers in software development. Furthermore, my experience in dealing with local and foreign clients would help in maintaining liaison and performing coordination role with the vendors or other stakeholders closely. Some of my developed sites are:,,,,,,,,,,,,,

$8.89 /hr
100 hours

Anwar Hakim

Anwar Hakim

Interior Designer / Architectural Visualizer


Being an Interior Designer & Passionate Architectural Visualizer, With 5yrs Passion, creating images is Just more than rendering it has to portrait Life and Every image has to be Unique with its own Story. I serve as Lead Visualizer for all Architectural & Interior Projects. I am very passionate about 3D design, technology and architecture. Through my work i have gained extensive knowledge in the area of designing & rendering views for projects such as: Commercial, Retail, Residential & Offices. To check my Portfolio Please follow this Link :-

$20.00 /hr
0 hours

Henry Kusdaryanto

Henry Kusdaryanto

Experienced Sysadmin, Mailadmin and Netadmin

Indonesia - Tests: 2 - Portfolio: 6

i'm network engineer and system administrator with experience in windows, linux and networking world... * KDE user * Windows XP user * Debian Linux Administrator(Bind9, Postfix, Squid, NFS, VOIP, Shorewall) * MCP in Small Business Server * CCNA(Cisco Certified Network Associate) *Expired* * JNCIA(Juniper Network Certified Internet Associate) *Expired* * Deploying Cisco Wireless LAN Controller and Cisco Aeronet Access Point * Deploying Opensource Zimbra Collaboration Suite, Openfire, Alfresco, Openmeeting... Specialties: Cisco, Juniper, Linux, Windows, System Administrator, Network Engineer Further discussion if needed you can pm me detailing the problems you have.

$12.00 /hr
0 hours

H Nawaz

H Nawaz Agency Contractor

Interspire Expert,PMTA,Linux,Email Server,Flyer Designer, VPS, MTA

Ireland - Tests: 2 - Portfolio: 5

Expert of Interspire email marketer, Email server configuration, PMTA, Add-on's I Optimize MySQL Server for operations with Email Marketer server The use of multiple SMTP servers must be supported The use of multiple IP addresses Set up on maximum emails processed per hour must be supported Set up DKIM Signing, RDNS, PX, MX & SPF records, DNS and Post-fix, Send-mail support Configure the mail server & MTA to work securely and quickly with the Email Marketer server and optimize. Set up of CRON schedule setting I am expert in creating and designing email, ads and Flyer, Template, Flash, HTML coding, Java Integration, Creating web form and impalement on website, using images, videos, coupon codes, Twitter Integration, Facebook Integration, LinkedIn Integration, forward to friend, Refer to links, Sign up, Email collecting form, Subscribing, Unsubscribing, Different preview, Preparing as spamming policy, Adding Many more options. 1. Website Squeeze page (design) 2. Form Filling (design) 3. Opt-in Page (design) 4. Confirmation Email (design) 5. Update Profile Page (design) 6. Original Email Templates (design) 7. Twitter, Facebook integration 8 Cancellation, Opt-out Page Looking long term work with reputable organization.

Groups: BigCommerce, BoonEx

Associated with: ITz Consultants Intl., ITz Consultants

$16.67 /hr
0 hours

Sharif Khan

Sharif Khan Agency Contractor

Web Design & Development, Wordpress, EC2/S3, Linux Server Expert

Bangladesh - Tests: 5 - Portfolio: 48

Over the last 8 years, I have developed a wide range of websites using HTML, DHTML, PHP, and MySQL including sites for start-up companies and small businesses. And over 6 years of experience in web hosting business. Linux, CentOS, Apache, MySQL, PHP, cPanel, DirectAdmin. My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build websites from the ground up for you or your business. Experience On HTML/CSS: ====================== -- PSD to HTML4/5, css 2.0/3.0 coding. -- Cross browsers capability (IE7+,Chrome, Firefox, Safari, Opera). -- Pixel perfect. -- W3C validation. -- SEO friendly markup. -- Responsive layouts. -- Bug fix. Experience On WordPress: ===================== -- Theme Code & Development -- PSD to Wordpress Theme. -- WordPress Re-Branding. -- PHP Modification. -- High level configuration websites. -- Bug fix. Server Administration: ================ I have 4 years of experience in Linux System Administration, I handle servers based on various distributions and platforms which are as follows; OS : Red Hat Linux, CentOS, Ubuntu, Fedora. Platforms : cPanel/WHM, Plesk, Direct Admin, Webmin, Virtualmin, Others : Openvz, Virtuozzo, LAMP, KVM, XEN, Solusvm, Veportal. I have extensive experience in end user support via various mediums such as Live Chat, Emails, Tickets.

Groups: Bluehost Developers and Designers, BoonEx...

Associated with: CyberOmega

$16.67 /hr
75 hours

Aurelijus A.

Aurelijus A.

WIndows/Linux systems administrator, LAN architect

Lithuania - Tests: 8

Looking for projects where I can use my current Windows and Linux administration and management skills. I have been in both those worlds for more than 19 years already. I have good skills of installing and configuring most popular software packages (LAMP, Moodle to name just a few), have done some migrations and upgrades (Windows AD 2000 to 2003 to 2008, MS-Exchange 2003 to 2007 to 2010).

$22.22 /hr
0 hours

Ariel Poeylaut

Ariel Poeylaut

Expert Web Designer with PERL, MySQL, HTML and JavaScript experience

Argentina - Tests: 1

At present, I work at Pampacom CDT (, designing, developing and directing the development of a proper framework: Sauron ( based on LAMP, HTML and JavaScript, and features customized for each customer. I also put running and maintain the infrastructure team: Linux, Apache, MySQL, PERL, svn subversion, Alfresco, vTiger, servers etc. I am currently a student at the National University of Rosario, in the Bachelor of Computer Science.

$25.00 /hr
0 hours