IT & Networking Administrators

Clear all filters
  1. Mykhaylo Dobrovolskyy

    Mykhaylo Dobrovolskyy

    Mykhaylo Dobrovolskyy

    Netherlands - Last active: 3 days ago - Tests: 7

    10+ years of Linux/Network experience with different systems. Finished and delivered SMB solutions to big corporate companies lie BNP Paribas, ABN AMRO or RBS. My main areas of knowledge are: 1) Networking (Cisco/Juniper/F5/BlueCoat and Linux/FreeBSD based solutions like vyatta/pfsense etc) 2) Security - Cisco IPS/IDS, CheckPoint, Linux/FreeBSD based, Juniper etc 3) Linux administration - mail system, database (mysql/mysql cluster), server with high load average, load balancers for server farms (Cisco/F5 based and Linux based like keepalived or apache/nginx with reverse proxy) 4) VoIP - Cisco/OpenSource(Asterisk and different installations based on asterisks like freepbx/elastix etc) There is a very small piece of my knowledge, I'm always looking for opportunity to grow and I'm pretty sure that if you give me tasks - I'll find out best way howto get it done.

    $27.78 /hr
    4,771 hours
    5.00
  2. Kenneth Ragan

    Kenneth Ragan

    IT professional looking for a challenge

    United States - Last active: 8 days ago - Tests: 12

    Hello, My name is Kenneth and I have been working in the Information technology field for many years. I have worked as a computer programmer, a systems analyst, a field technician, and an electronic technician over the last 12 years. I am well versed in system administration (Windows/Linux Server and Desktop), remote troubleshooting, data mining, virtualization, web design, programming using various languages (C, C#, VB/VBA), project management, and many more areas. I am confident that I can help you accomplish nearly any task I am presented with. I am a very good troubleshooter and very analytical. I can perform complicated tasks such as optimizing server performance, configuring VPN connections, and server setup from scratch, or I can perform less complicated tasks such as data entry, web scraping, excel manipulation (i.e. formula and VBA creation). In my spare time, I work on IT projects for friends and co-workers that require in-depth knowledge of Visual Basic programming and SQL integration. I love working and can make myself available to perform whatever task is required at nearly a moments notice. I consider myself a jack of all trades, all I need is a chance to prove my worth.

    $33.33 /hr
    55 hours
    4.94
  3. Yuri K.

    Yuri K.

    Red Hat Certified System Administrator

    Ukraine - Last active: 2 days ago - Tests: 5

    I would like to offer my skills as Red Hat Certified (RHCSA) Linux System Administrator. Over the last few years year I've been working as a Level3 Support Representative dealing with Linux and Windows based dedicated servers and Virtual machines, which includes troubleshooting hardware and software issues, management of virtualization software (Xen, Onapp, SolusVM)

    $20.00 /hr
    113 hours
    5.00
  4. Alexandr M.

    Alexandr M.

    back-end expert

    Russia - Last active: 3 days ago - Tests: 7

    I'll make high quality well tested code for your website. First of all, I am database designer and server side developer. But I can do the front-end part when required. OOP, Design Patterns and Test-Driven Development on hands. Back end skills: - PHP5 with MySQL - Laravel, Symfony 2 - REST, SOAP Front end: - CSS3, HTML5 - AJAX - Highcharts, Data Tables

    $16.00 /hr
    11 hours
    5.00
  5. Peter Ndikuwera

    Peter Ndikuwera

    Senior Linux System Administrator & Database guru

    Uganda - Last active: 1 day ago - Tests: 6 - Portfolio: 3

    I'm passionate about Linux! 15 years of experience with Linux & UNIX Systems Administration - SUSE, Centos, Debian, Ubuntu, SCO Unixware, Solaris 10 years providing support and administering email platforms - Zimbra, Horde, Kolab Database Administrator & Developer (ORACLE, PostgreSQL, MySQL, ProgressDB) Contributor to OSS applications (mainly Amarok) openSUSE Hacker Firewall setup using ipchains/iptables

    $20.00 /hr
    5 hours
    5.00
  6. Vladimir Laskov

    Vladimir Laskov

    Linux and FreeBSD Systems Architect

    Russia - Last active: 1 month ago - Tests: 9 - Portfolio: 1

    Specialties: Architect, RHCE, DevOps, Performance, Scalability, Redundancy / Fault Tolerance, High Availability ( CARP, HSRP, VRRP, DRBD, HAST ), Network Security, Troubleshooting, Solaris, OpenBSD, FreeBSD, Linux ( RHEL, CentOS, Ubuntu, Debian, SUSE ), Nginx, Apache, PostgreSQL, MySQL, Postfix, Dovecot, Asterisk, GIT, Jenkins, iptables, PF, IPFW, Nagios, PHP, Ruby, Java, Python, Perl, IPSEC, SSL, VPN, VMWare, SAN, ZFS ... Started out with a Sinclair ZX-Spectrum. Over 10 years of experience in IT area, including 6 years in Senior System Administrator. positions. Expert in Unix-based systems (5 years), advanced person in database administration (3 years). Person with strong analytical and troubleshooting skills, strong team building skills, well developed management skills, interpersonal skills.

    $25.00 /hr
    0 hours
    5.00
  7. Jay Prakash Sarma

    Jay Prakash Sarma

    droidlabour

    India - Last active: 1 month ago - Tests: 1 - Portfolio: 2

    Programming Skills 1. PHP 2. Python 3. Bash Script 4. Scala/JAVA System administration 1. Linux [RedHat, CentOS, Ubuntu] 2. Amazon Web Services 3. Rackspace 4. Digital Ocean 5. Vagrant Scalable tools 1. ElasticSearch 2. Puppet/Chef 3. Redis 4. MongoDB Deployment 1. git 2. Continuous integration Iam starting from scratch at oDesk. My other freelancer experiences can be found at freelancer.com Here is my profile URL: https://www.freelancer.com/u/joystick220.html

    $28.00 /hr
    0 hours
    5.00
  8. Arkadiusz S.

    Arkadiusz S.

    Front-end Developer

    Poland - Last active: 1 day ago - Tests: 2 - Portfolio: 1

    Hi there, I’m Arek! I am an passionate Front-end Developer and Architect from Poland. I help companies from Europe and USA write good quality, scalable software. I can do my best at front end topics: - Python and Django (as backend) - Backbone.js / Marionette - Twitter Bootstrap - JavaScript (Phonegap, node.js, winJS and many smaller libs.) - SCSS, LESS and CSS3 (performance, resposive design, scale) - Jasmine - unit tests In my workflow I prefer to use GIT. Please feel free to ask me a question. I can send you some code from my previous work.

    $50.00 /hr
    8 hours
    4.68
  9. Jonas S.

    Jonas S.

    Math. Crafting fast social/charity-startups. Rent my brain

    Germany - Last active: 15 days ago - Tests: 12

    Talent: Math. One in thousands. In love with desiging & modelling any concept, (social-) system, startup and their pratical implementation/process, mission, credo, by-law, patent to surpass financial projections as well as interlectual/moral goals! I rapidly understand situations and seemlessly solutions flash up & incubate until failproof/backed by stochastics and statistics. 2. I'm looking to cofound or volunteer for any social projects. I managed charity campaigns successfully. 3. I hope to leverage my skills by coming up with algorithms and core code for any science project, boinc, distributed systems/databases, machine learning/AI, dao. I dont believe in hourly payment for unique/non-repetitive work. Rather milestones (, shares or votes) 4. I'll easily be profitable in automating any relevant but repetitive tasks and saving human working hours. Tasks / Processes usually turn out much smaller than clients expect - after all you can devide any complexity by volume. 5. I'd be happy to participate in interdisciplinary projects involving one or more of the following fields (in some i got extensive experience others of interest yet only): Big data analysis/datascience Business plans. distrubuted autonomous, etherium, supercomputering (clusters, cloud) , Crowdsourcing, Finance/Stockmarket/Trading Mathematics/Stochastic-process, Crowdfunding, Social-business, microlending, microwork, peer2peer, blockchain, Datajournalism, visualization, Infografics, Diagram invention, illustration. algorithmic thinking, Chemics, Nanotechnology, Physics, Biology, regenerative Energy, Matlab, SciDB, NewSQL, drizzle, nuodb, neo4j, relational in-memory database, redis, voltdb, facebook ads adverts, adwords for non profits Cloudera, Wolfram Mathematica, C++, C#, cuda, opencl, Visual Studio, Prolog, logic, UIMA, computational linguistics, google ngrams, google trends, NLP, computer vision, openCV, statistics, Wolfram alpha, IBM watson, SPSS, R, Ethics, Politics, Philosophy, Theology, apache camel, google grants, apache mahout, imacros, Sociology, Psychology, rapid prototyping. Languages: German (native), English, bits of Latin languages

    $314.16 /hr
    6 hours
    5.00
  10. Anatoly Yuzefovich

    Anatoly Yuzefovich Agency Contractor

    Linux/FreeBSD/Administrator/Perl/Web-programing

    Russia - Last active: 1 day ago - Tests: 1

    I'm skilled Nix-administrator and perl developer with 10-year old experience. Administration: Linux, FreeBSD. Services ftp(proftpd,vsftpd,pure-ftpd), http(apache,nginx,lighttpd),dns,email,mysql and other services. Networking: Cisco systems devices (routing & switching). Network architecture. NAS/SAN: IBM, HP, NetAPP and work with Blade Systems (IBM, HP) VmWare vSphere virtualization. Perl programming: Web-programming - DBIx, dancer, plack, templates, modern perl, mojolicious. JavaScript - extjs, jquery, node.js, angular.js

    Associated with: Coderunes

    $33.33 /hr
    362 hours
    5.00