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Last updated: October 1, 2015
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Alexander Ustilov

Alexander Ustilov

Developer (Perl, Catalyst, Javascript, SQL)

Ukraine - Tests: 1 - Portfolio: 1

Self-directed and motivated programmer with 5+ years' experience in Perl (Catalyst framework), SQL, PHP, Javascript, HTML, CSS technologies. Excellent at developing and maintaining client/server applications. I am hardworking and a fast learner with good communication skills and a strong design background.

$11.11 /hr
0 hours

Adrian A.

Adrian A.

Web Developer Perl/PHP/Javascript/AJAX/MVC/CMS

Romania - Tests: 4 - Portfolio: 2

In the last 8 years I've been developing a wide range of web applications using Perl as main language, Catalyst/Dancer as MVC framework and PostGreSQL, MySQL as backend, Template::Toolkit, DBIx::Class, Rose::DB. Also, I've developed several web applications using Drupal, CakePHP and Codeigniter. I have experience using Perl, PHP, SQL (MySQL, PostGres, SQLite), MongoDB, Ajax, JQuery, JavaScript, OOP, software design and testing.

Groups: Bluehost Developers and Designers

100% Job Success
$21.89 /hr
1,753 hours

Rene Montilva

Rene Montilva

Open-Source Developer, VoIP engineer


More than six years with the technologies of free / open source software, strong skills with GNU / Linux Debian, everything about knowledge in network infrastructure, developer comunicaction expert systems such as Voip Protocols, SMS (smpp) development of API telecommunication systems with free software like so Kamailio, Asterisk, Freeswitch everything needed for core platforms (security,billing systems, monitor, provisioning).

$10.00 /hr
0 hours

Chylli Lee

Chylli Lee

perl ruby mysql postgresql expert

China - Tests: 6 - Portfolio: 2

3+ years ruby rails, 10+ years perl programmer, 7+ years mysql dba, 2+ years ruby rails Hi! I'm an enthusiastic web developer with excellent skills in PERL,RUBY,JavaScipt,jQuery,MySql,PostgreSQL,CSS,(X)HTML. 10+ years of software coding experience gives me a possibilty to create excellent software projects. I confirm that you would never regret working with me. You are going to meet the best coder. Don't hesitate to select me.

100% Job Success
$22.22 /hr
2,240 hours

Andrei Volkov

Andrei Volkov Agency Contractor

Linux specialist (Sec/Opt/Dev, C/Perl/Python/PHP/BASH)

Belarus - Tests: 5 - Portfolio: 13

Important: ------------------- Enhanced shield of your Web application with mod_security! Should be always. It is task #1 after installation ANY web application! ------------------- About Me and more: ------------------- I have over 16 years of work experience with Linux systems. This is the list of software and technologies with which I deal. This list is not full and expands day by day. I always can find right decisions if I found some problems. And I am always interested in looking for mostly economical and productive solutions. Of course, Cpanel, WHM, Webmin, Plesk .... I know how are working these web-wrappers and I support their. I can will tune and to make the checking of these wrappers. But that more important !! I can work without this))) Directly use configuration files of services and etc etc. Usually, it is better way on dedicated servers. ) TCP, IPv4 , IPv6, IPX ... - WiFi, WEP, WPA, WPA2 ... - SElinux, Apparmor, Smack, Tomoyo ... - LAMP ( Apache, Nginx, PHP, Perl, Mysql, Mongo), REDMINE ... - Cpanel, Zpanel, ISP ... - MySQL clustering and replication DNS servers ... - SENDMAIL, EXIM, POSTFIX (POSTFIXADMIN,MYSQL,DOVECOT,POLICYD) ... - HPC system: Torque, Maui, Moab for HPC clusters, Infiniband, FC interconnect, iSCSI, SCST, DRBD, OFED, OPENMPI ... - OpenLDAP ... - VPN with OpenVPN, PPTP, StrongVPN ... - Nagios, Zabbix, Ganglia, OSSEC ... - SVN, CVS, GIT ... - KVM, Xen, OpenStack, Proxmox ... - NBD, RAID, LVM ... etc etc During these years I have been in a large number of tasks related to administration of network devices, as well as with simple and complex server systems. I manage servers for the HPC tasks and for network infrastructure of Internet and Intranet - DNS,DHCP,*FTP,HTTP(S),MAIL etc etc. The main goals - the monitoring of the performance and the security. I also implement tasks of data backup and troubleshooting, support for the users. I have comprehensive work skills with systems based on Debian, Redhat, CentOS, SLES, OpenSuse. I've got more than 8 years of experience in developing the different software with use of C, Perl, Python, Bash, HTML on system and user levels. For example, very important skill in developing and the modification of RPM packages (rpmbuild, rebuild, kernels), custom kernels and etc etc. ------------------- Often: ------------------- How the standart service for VPS's and VDS's projects and dedicated servers: IDS, IPS, the control of contents of log's files, the control of load of the cpu, the memory, the hard disks; the backups of the databases and the files; install or update software, consultations. Emergency call via sms to cell phone. ------------------- STOP Windows and U/K/buntu etc. TIPS WITHOUT PAYMENT: ------------------- 1. VERY OFFTEN: IF YOURS WP WAS HACKED 1. disable plugins 2. execute # diff -r dir1 dir2 3. repeat for plugins if you have last version of WP code: ~ 80% cases - problems: plugin low quality (look on author: from where and who is) ~ 15% cases - problems: theme low quality (look on author: from where and who is) ~ 5% 0day of WP also you need disable all shell function in php and enable suphp/suexec modes. STOP Windows and U/K/buntu etc. TIPS WITHOUT PAYMENT: ------------------- 1. I am getting a lot questions about reliability and quality distributives/clones Ubuntu. Results on practice - Ubuntu clones - worst for server. It is truth. If you $buntu guy, I can't help you right now. I only can recommend Debian way for server. =============== 3. Nginx of course is good program. For small/middle vps. But in serious projects - apache. Nginx will be suitable for frontend. It is only practice. Always for all web application should be mod_security module. Firewall of level of web application on 7 level of OSI. Each web application/site should be under own user in environment of vps or on dedicated servers. =============== 4. By topic Wordpress. For optimisation services of OS , namely system IO(type of disks or partitions) and DB(type of engines of tables), need to use empty installation (default variants). Most problems of work WP contains in itself - customized plugins or themes. For analyze pages need begin with such services as =============== Sunday - day of rest. Or in emergency case - payment with double rate. best regards, Andrei / PS: With love from USSR. ;-)

Associated with: UPWORK.LINK

100% Job Success
$16.00 /hr
1,023 hours

Sumon S.

Sumon S.

Full-Stack Ruby on Rails Developer & System Administrator

Bangladesh - Tests: 4 - Portfolio: 8

I am a skilled developer with extensive experience in Ruby, JavaScript, NodeJS, Perl, Linux and cloud base technology stacks. I love to work with brand new tools and solve challenging problems. I am looking for a long term and full time position at the moment. My English is very good. I scored 8 in IELTS test. I write clear, detailed, to-the-point reports/emails. I am available in IM 24/7. I am ready to work as part of a team as well as a one man team. I am looking for a long term relationship if not permanent position. I work according to your time zone. I am skilled in: # Ruby (Rails 4 and older, Cucumber, Rspec, Grape, VCR, Selenium, JRuby, Heroku, AWS) # Javascript (NodeJS, AngularJS, BackboneJS, jQuery, MeteroJS, ExpressJS,, CoffeeScript, Jasmine) # Perl (Catalyst, Mason, mod_perl, WWW::Mechanize, LWP, Plagger, Plucene, DBI, DBIx::Class, Rose::DB, CGI::Application, Template::Toolkit, HTML::Template, MisterHouse + lot more cpan modules...) # PHP (CodeIgniter, CakePHP) # Java, C++, C# # MongoDB, CouchDB, LevelDB, MySQL, PostgreSQL, SQLite # Erlang, Go, Scala (Learned as a hobby) I have used project management tools like Pivotal Tracker, Trello, Unfuddle, Basecamp, Aseembla, Trac and a few more tools like these.

Groups: Engine Yard Ruby on Rails Professionals Network

100% Job Success
$25.00 /hr
1,895 hours

Nikita Tropin

C/Perl/Shell Linux Developer

Ukraine - Tests: 5

Hello! I'm student interesting in Linux, C and Perl development. The primary focus of my interest now is Web-site development, Web-crawlers, system programming in C and Linux administration. My profile on GitHub: Courses that I participated in and accomplished: 1) (Introduction into LaTeX) 2) (Algorithms: Design and Analysis, Part 1 by Stanford University) 3) (Introduction to Computer Networking. Passed half of the course) 4) (Course in russian. Introduction to operating systems. Practical part. Course includes programming in C for UNIX, basic IPC patterns like semaphores, message queues, and shared memory, working with files, processes and so on) 5) Participated in Yandex KIT5(Q4 2014) (abbreviation for Course of Informational Technologies) about Linux system administration I've learned C, take into consideration and constantly learning POSIX standard, have project on GitHub. In POSIX I also learned Shell scripting language and often write some small scripts(~30 sloc) for my own needs(e.g. music files splitting according to cue file or batch video converting using ffmpeg) and once something bigger(~400 sloc) - script for easy building of symbian programs on linux. About half year ago I've learned Perl and wrote one simple site on Catalyst web framework and few on Mojolicious. Have good knowledge of PHP programming. I'm often playing with different things. For example, few years ago wrote small(primitive enough) games for JavaME (see screenshots here, learned LaTeX a little, wrote few scripts for SystemTap, using Gentoo GNU/Linux distribution, know basics of Git, developed disposable Android applications that solves some math(for studies), developed GUI apps in C++ with Gtkmm library and many more. Anytime ready to learn new things.

$10.00 /hr
1 hours