Network & System Administrators

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  1. Mykhaylo Dobrovolskyy

    Mykhaylo Dobrovolskyy

    Mykhaylo Dobrovolskyy

    Netherlands - 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
    4,776 hours
    5.00
  2. Konstantin Mineev

    Konstantin Mineev

    Expert WEB administrator and developer

    Russia - Tests: 2 - Portfolio: 1

    I have work experience in developing and maintaining web sites based on Microsoft IIS 6/7/7.5 platform, Asp, .Net: Writing PowerShell 2.0 / Quest AD scripts to automate tasks. Scripting expirience with Amazon EC2, S3 services. Adjustment and optimization IIS (including cluster systems). Configuration, optimization, replication of databases MS SQL. Configuring servers in a virtual environment, Hyper-V, VMware, Amazon EC2. Configuring network devices (Kerio, Cisco, Linux). Preparation of specific reports on infrastructure. Maintaining SharePoint applications (MOSS 2007 and SharePoint 2010). I have been involved in major high load web projects and I have the ability to interact with foreign colleagues to meet the challenges of ongoing the projects.

    $10.00 /hr
    88 hours
    5.00
  3. Julio Carvajal

    Julio Carvajal

    CCIE 42930,2xCCNP,Juniper Specialist

    Costa Rica - Tests: 2 - Portfolio: 4

    Senior Network and Security engineer with more than 10 certifications from different vendors including a CCIE. If you hire me you will be hiring an ex-former Cisco TAC Security Engineer that worked in more than 1000 different cases with different Cisco Equipment and Issues. I have experience leading big projects, creating documentation, designing , configuring and troubleshooting different networks. During my years of Freelancer I have taken tickets for multiple vendors (Juniper, Cisco, HP, CheckPoint, Fortigate, Palo-Alto, SonicWall) and I have even provided training worldwide for different companies. Here are the certifications I have: CompTIA Security+ Wireless OffSec Pentesting CCNA JNCIA CCNA Sec CCNP Security CCNP Routing&Switching JNCIS-SEC CCIE Routing&Switching 42930 Languages: Spanish, English Thanks for checking my profile and I hope you have a great day, Regards, Julio Carvajal

    $77.78 /hr
    162 hours
    4.91
  4. Arkadiusz S.

    Arkadiusz S.

    Front-end Developer

    Poland - 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
  5. Artur R.

    Artur R.

    Systems Engineer/DevOps

    Canada - Tests: 4

    I am a Experienced Systems Engineer/DevOps with more then 15 yrs experience with Linux, Opensource and cloud technologies. I do have experience and offer my services in these areas: System Administration: Linux-all flavours (expert), BSD*(expert) Automation: Chef, Puppet, Jenkins Monitoring: Zabbix, Cacti, Munin, Nagios,Graphite Mail services: Postfix, Exim, Dovecot Virtualization: Xen, KVM, OpenVZ, Proxmox, AWS, Docker High availability: DRBD, GFS2, GlusterFS, Pacemaker, Heartbeat Common services: DNS, DHCP, File Sharing, NAT, iptables, ipfw Scripting: Bash, Python, Ruby Web servers: Apache, Nginx, Haproxy Database servers: MySQL, PostgreSQL, MongoDB,Oracle, RDS BigData: Elasticsearch,Hadoop CDN: Akamai, Cloudflare

    $40.00 /hr
    8 hours
    4.94
  6. Anatoly Yuzefovich

    Anatoly Yuzefovich Agency Contractor

    Linux/FreeBSD/Administrator/Perl/Web-programing

    Russia - 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
    376 hours
    5.00
  7. Viktor D.

    Viktor D. Agency Contractor

    Magento,Linux system administration, Vps

    Macedonia - Portfolio: 4

    With 5+ years of Magento experience and more then 120 successfully completed magento projects, You as client can be sure that you're in good and professional hands. My passion for perfect coding and designing is leading force and my reasonable price and quality bring back the old clients and attract new ones.

    Associated with: Viktor D.

    $25.00 /hr
    268 hours
    4.94
  8. abhinand vnair

    abhinand vnair Agency Contractor

    Director & Senior Developer(Codeigniter, Wordpress and PaymentAPI )

    India - Tests: 1 - Portfolio: 65

    I am a senior Dev with hands on experience in opensource technologies and other corporate level technologies like IOS. I have worked on many different complex projects and gained better skill in the field of information technology. I am able to satisfy all the clients who had given me opportunity to excel and expose my skill set. Also apart from pure development perspective, i am good enough to take part in product management, marketing and other point of sale areas. I firmly believe that the economic profit to clients should be the first and foremost aim for any company/freelancer because which in turn allows the client to focus more on business and move high.

    Associated with: aTeamIndia [API,Paypal, Wordpress, Codeigniter, Recurly, AWS]

    $14.00 /hr
    842 hours
    4.91
  9. Alexander Gladysh

    Alexander Gladysh Agency Contractor

    Getting things done, smart!

    Russia

    Your project, large or small, in our caring experienced hands. We specialize in high-load web-services, big-data analytics and games — but we're experienced in solving many other IT problems as well. If it can be done, we can do it. For you. Each our engineer is a T-shaped person — with a deep expert understanding of his speciality topic and comprehensive outlook for wide range of related IT fields. Our management are veterans with decades of combined experience in IT and dozens of completed — and failed — projects. We know where the pitfalls are and how to avoid them.

    Associated with: LogicEditor

    $30.00 /hr
    19 hours
    4.89
  10. David Codesido

    David Codesido Agency Contractor

    Linux Systems Administrator

    Spain - Tests: 3

    Over more than 15 years I've been a GNU/Linux fanatic while I was studying my Computing Science Engineering career. After that I have worked for 8 years as a Systems administrator and DevOps for an IPTV company. During these years I've mastered on server side administration oriented to web services and web backends (Tomcat, Nginx, Apache, Postgresql, MySQL) and with Cloud oriented services (CDNs, High Availability, Clustering). As part of my job I also have knowledge of a whole set of tools on GNU/Linux for debugging networking and OS issues and both Bash and Python good programming and scripting skills. As a result of my career tesis and years on IPTV, I have a deep understanding on video technologies, transcoding and streaming. As a DevOps I have a good understanding on software design and testing, customer relationships and project managing which gives me a new angle on approaching projects on time phocusing on customer satisfaction and Quality Assurance.

    Associated with: Treitos

    $33.33 /hr
    212 hours
    5.00