Network & System Administrators

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  1. Herman Beltran

    Herman Beltran

    Philippine MCSE|MCSA|CCNA

    Philippines - Last active: less than one minute ago - Portfolio: 7

    IT Professional with 10 years working experience while possessing developed skills that have been gained through establishing and developing IT projects, networks and infrastructures. Experienced covers customer liaison, design, testing to successful implementation within budget, scope, timescales and process limitations. Extensive LAN, WAN, Hardware, Software experience. Working cross-functionally within a customer focused, multi-site environment, maintaining the delivery of IT services and technology projects. Up-to-date on IT developments.

    $11.00 /hr
    1,662 hours
    0.00
  2. Sergei K.

    ASP.NET MVC backend/frontend, WebApi expert

    Belarus - Last active: 12 days ago - Tests: 3

    • 6+ years of experience in commercial software development • Pro in ASP.NET stack: MVC, WebApi, EF, MS SQL Server, Azure, SignalR • Highly motivated, goal oriented • Fluent English, elementary German, great communication skills • Oriented for a long-term commitments

    $27.78 /hr
    3,812 hours
    0.00
  3. Oleksii A.

    JavaSE/JavaEE Developer, PhD in Information Security

    Ukraine - Last active: 09/19/2011 - Tests: 5

    Enterprise and Web Application Developer. PhD in Information Security. Especially interested in building complex (transactional, concurrent, secured, scalable etc) Java/J2EE based systems. Strive for creating systems based on sound technical designs by applying OO design concepts and software patterns.

    $38.89 /hr
    1,277 hours
    0.00
  4. Rodney Caston

    Rodney Caston Agency Contractor

    Systems Engineer

    United States - Last active: 1 month ago - Tests: 3

    I have over fifteen years experience in linux systems administration and development, having managed large environments composed of many thousands of systems. I believe I bring with me a valuable perspective on how to provide solutions for efficiently managing extremely large, and distributed environments without scaling headcount. Some of my accomplishments include having built site reliability/network operations centers from the ground up, from the development of the fault and performance management systems to the management of the staff. I have built up and administered large scale email infrastructures which would send and receive millions of emails daily. I have managed datacenter migration projects consisting of thousands of servers running live services. I have extensive experience in the online gaming industry, focusing on adminsitration, server engineering, and DevOps. I have even worked in a creative capacity as a writer and creative designer in the past, having co-created the MegaTokyo™ intellectual properties. Given the variety of roles I've had in my career, I consider myself a jack-of-all-trades. What I enjoy most is being able to provide value to the organizations that I am able to support, regardless of what role that places me in at the time. Specialties: Amazon Web Services, Apache, Backtrack 5, Bind/DNS, Cacti, Chef, Cloud, Drupal, Elasticsearch, Ganglia, Glusterfs, HAProxy, Heartbeat, Kibana, LDirectord, Linux (Ubuntu, Debian, Redhat, CentOS, Kali), Logstash, Memcache, Metasploit, Monit, MongoDB, MRTG, Munin, MySQL Server, Nagios, Netcool, Nginx, Offensive Security, OpenVAS, OpenVPN, OSSEC, OSX, Penetration Testing, Postfix, PowerDNS, Puppet, Ruby, RRDTool, SAN, Samba, Sendmail, Shell Scripting, Splunk, Squid, Syslog, SMTP, SNMP, SSL, Squid, TCP/IP, VMWare, Windows, and Xen.

    Associated with: Caston Consulting LLC

    $91.11 /hr
    1,634 hours
    0.00
  5. Wilson P.

    Wilson P. Agency Contractor

    C/C++/OpenGL/Network Programmer

    India - Last active: 1 day ago - Tests: 3 - Portfolio: 5

    I am a C/C++ programmer with fair experience in Java and HTML/CSS/Javascript. I specialize in algorithm intensive game physics and ai, desktop applications using wxWidgets, machine learning and C++ based web development targetted for ASPs. Over past 2 years I have 1) Developed from scratch the physics and character maker for a 2D massively multiplayer game. 2) Developed Opensource web application framework in C++ which implements the fastcgi protocol and is designed to solve the c10k problem. 3) GUI for several desktop trading applications using wxWidgets.

    Associated with: Kefas Softwares

    $22.22 /hr
    2,544 hours
    0.00
  6. Romnick Leongson

    System and Network Administrator

    Philippines - Last active: 8 hours ago

    IT technical support officers are mainly responsible for the smooth running of computer systems and ensuring users get maximum benefits from them. Individual tasks vary depending on the size and structure of the organisation, but may include: *installing and configuring computer hardware operating systems and applications; *monitoring and maintaining computer systems and networks; *talking staff or clients through a series of actions, either face to face or over the telephone to help set up systems or resolve issues; *troubleshooting system and network problems and diagnosing and solving hardware or software faults; *replacing parts as required; *providing support, including procedural documentation and relevant reports; *following diagrams and written instructions to repair a fault or set up a system; *supporting the roll-out of new applications; *setting up new users' accounts and profiles and dealing with password issues; responding within agreed time limits to call-outs; *working continuously on a task until completion (or referral to third parties, if appropriate); *prioritising and managing many open cases at one time; *rapidly establishing a good working relationship with customers and other professionals, e.g., software developers; *testing and evaluating new technology; conducting electrical safety checks on computer equipment.

    $5.56 /hr
    1,798 hours
    0.00
  7. Juan Manuel Mejia Correa

    Juan Manuel Mejia Correa

    WEB and DBA professional

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

    Over the last 4 years, I've been working as a software developer and consultant which gives me knowledge and experience in some of the most cutting edge technologies and methodologies. I have experience working with .Net C#, JQuery, Javascript, Ajax, LinQ to SQL, Spring, HTML, XML, Bizagi, BPM and many more. I also have worked with several design patterns approachs such as MVP and MVC. I'm fully compromised with following the best practices in all scenarios in my work to achieve the best quality and deliver excellent products.

    $22.22 /hr
    1,837 hours
    0.00
  8. Rick Cabrera

    Rick Cabrera

    QA Tester, Lead and Business Analyst (SCRUM, Agile, Waterfall)

    Nicaragua - Last active: 1 day ago - Tests: 6 - Portfolio: 11

    Hello - My name is Rick Cabrera. I am a QA professional with over 10 years of experience, I have utilized Agile, SCRUM and Waterfall QA Methodologies - I have a strong understanding of the SDLC and I have experience testing software including Java Web applications, C# Applications, .NET, PL/SQL, API, Blackbox, Workflows, 1x1 calls, B2B, B2C, Mobile Applications, Mobile Web, XML testing and proprietary systems testing. I am bi-lingual and well versed in English and Spanish (english is my native language). I have experience with manual and automated testing. I have worked at various large entities in various roles within QA including tester, business analyst and QA Lead. In my roles as a lead I was in charge of handling the complete QA process for projects assigned to me including verification and functionality of all new requirements and ensuring that the product delivered met all the guidelines set forth in any project definition document or business requirement document. This also included team management and providing metrics to Project Managers or QA Management. During my roles in testing I have verified systems that served 15 million customers including systems supporting government agencies and medical companies. I have released over 30 projects in my role in QA which has introduced many new technologies, brands, automation and various innovations which have impacted customers directly and indirectly. The introduction of automation to Customer Service Centers has reduced call rates, in one instance (TracFone Automated Self-Healing) an estimated 60,000 cases were resolved within the first 15 minutes of the systems release, 60,000 calls eliminated in 15 minutes. I posses a high level of adaptability to new software languages and technologies. I am a quick worker and am very thorough and analytical when it comes to any work that I do. I am also very proactive and will provide feedback and recommendations when it comes to requirements or UI design. If you need anything specific especially related to Software Quality Assurance please be sure to look through my resume, my projects and my references. References can be found on my LinkedIn Page http://www.linkedin.com/in/rickcabrera

    $20.00 /hr
    1,351 hours
    0.00
  9. Miguel G.

    Miguel G.

    Developer

    Dominican Republic - Last active: 1 day ago - Tests: 2 - Portfolio: 1

    I am a salesforce administrator-developer wanting to learn and resolve problems. I am a very proficient English speaker,writer,and reader. I like to resolve users concerns and issues, making them feel satisfied with the work and I like to continuously keep up with the projects that I'm doing trying to find a way to better them and make the user feel comfortable. I am an experienced programmer in Java,C,and C#. Also I have managed different type of database managers like Oracle,MySql,Postgresql,and SQL. I also have skills as System Administrator in Linux Operating system.

    $25.00 /hr
    1,713 hours
    0.00