IT & Networking Administrators

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  1. Mikhail Evseev

    Mikhail Evseev

    Network Engineer

    Belarus - Last active: 2 months ago - Tests: 3

    Actively involved in pre- and post- sale processes Participating in strategic and design meetings with clients Evaluating existing LAN/WAN infrastructure Performing comprehensive network analysis and full blown network audits followed by design and security recommendations based on advanced best practices as well as own experience. Creating, delivering, documenting and supporting proposed solutions Consulting and advising the clients Confident knowledge of Cisco's software and hardware solutions for small, medium and enterprise businesses (installing, configuring and supporting active network equipment) and service provider network.

    $16.67 /hr
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  2. Viktoria A

    Viktoria A

    Technical Support

    Russia - Last active: 20 days ago - Tests: 7

    I have 3 years of experience working as a Linux Administrator where I gained extensive knowledge in this field. I am familiar with installation, configuration, patching and upgrading systems. I worked mostly with CentOS but also with Ubuntu, Debian and FreeBSD. In the last 3 years I installed and managed servers and services like Apache/Nginx/lighttpd, MySQL, Postfix/sendmail/exim/dovecot/courier, DNS servers, squid and a lot more. I can install, configure and maintain any piece of software you need.

    $7.00 /hr
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  3. Luke Baker

    Luke Baker

    Linux Systems Administrator

    United States - Last active: 29 days ago - Tests: 1

    I am a Linux Systems Administrator by day, with a focus on systems automation using Puppet, shell scripting, and Python. I work daily in Red Hat Enterprise Linux but I'm just as comfortable in Debian or Ubuntu systems. Over the past 4 years I have worked with SAN storage (iSCSI, fiberchannel), Virtualization (VMware/AWS), MySQL, and Dell server hardware. I have some experience designing web applications using Django/Python, PHP, and Javascript/CSS/HTML. I have worked with the Android SDK for a couple of personal projects. I am familiar with software testing using Python unittest and Ruby rspec.

    $22.22 /hr
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  4. Karey Foster

    Karey Foster

    Expert in Excel/Access with Data Modeling experience

    United States - Last active: 1 month ago - Tests: 5

    I have experience with several areas of businesses ranging from credit, to marketing, to ecommerce, and even transitioning to healthcare data. I have a love for extracting data and manipulating it into high level summaries and making it easy for all to understand. I am fluent in pivot tables and complex formulas with high knowledge in macros and VBA. My goal is to be a successful freelancer, so I look forward to hearing from you!

    $22.22 /hr
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  5. Maxim Stepanov

    Maxim Stepanov

    Senior Linux-Unix System Administrator

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

    I have more than 8 years expirience of linux and bsd systems administration. Some software: Web servers - nginx, apache2, phpfpm, memcached, php Databases - mysql, postgresql, mongodb Mail Servers - postfix, exim, dovecot, spamasassin Firewalls - iptables, ipfw, pf FileStorage - nfs, samba Dns - bind Auth - ldap, radius Monitoring - Zabbix, nagios, cacti, And more... Strong skills in packages management, kernel compile & tune, sysctl tuning, manage a lot of servers in lot of DC's, configuration management, like ansible. Bash scripting, automatization - no problem. Find hardware for your project, setup load balancing and cluster. Backup solutions for any projects.

    $50.00 /hr
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  6. Remus Octavian Cimpean

    Remus Octavian Cimpean

    Senior Data Science Consultant

    Romania - Last active: 14 days ago - Tests: 2 - Portfolio: 2

    My main professional focus is to support businesses to develop analytical processes, implement them using data science methodology and deploy outputs as analytical products. Having exposure in working with Forbes 500 Companies, combined with project management experience, and relevant academic background, I provide data science specific solutions for business needs in order to support data driven business decisions. Educational background: PhD in applied statistics Using specific tools like R, Python, MySQL, Excel-VBA, SPSS, Tableau for classical data analysis or Big Data technology like Teradata Aster I am addressing following data science chapters: Data Management - data cleansing, harmonization and consolidation - creation of data structures and data integration - data processes automation Data Analysis - descriptive statistics - predictive statistical modeling for structured data & machine learning for big data - optimization modeling Data visualization - customized dashboard creation for dynamic visualization of analytical insights - Big Data graph analysis like nPath graph, Afinity plots

    $22.22 /hr
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  7. Tea Trebižan

    Tea Trebižan

    IT enthusiast with experience in various fields

    Slovenia - Last active: 8 days ago - Tests: 2

    I am an experienced computer technician, working mainly with troubleshooting and resolving various computer, network and software issues. My expertise are Microsoft Windows Desktop administration, computer security and basic network configuration and support. I'm also conducting workshops about basic computer skills and internet services. For myself, I would say that I'm a cultivated and open minded person with good social and organizational skills. I also quickly adopt to stressful situations that acquire quick problem solving.

    $23.00 /hr
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  8. Hammad Moeen

    Hammad Moeen

    PACS Administrator | Imaging Analyst | Web Developer and Tester

    Pakistan - Last active: 6 days ago - Tests: 3 - Portfolio: 1

    I am a PACS Administrator and Imagining Consultant having more than 9 years of experience in PACS Administration, Web Development and Project Management.Providing Best Services with-in time-frame and budget is my Quality. Software/ Web Development and Testing and Project Management is my specialty With expertise in Manual testing, Web Applications Testing, Client Server, Stand Alone Applications and many websites for usability testing. I have testing experience in all levels of Software Development Life Cycle. In Depth knowledge of Testing Software/ Web Applications in following Domains 1) Diagnostics (Clinical/ Non Clinical) 2) Inventory Management (Procurement - Stock Management) 3) Financial and Payroll 4) Travel Agents Products 5) School Management System 6) PACS Administration & Management Hands on experience in: ----------------------------- 1) Understanding Customer Functional Requirements 2) Followup of logged Bugs with Developers 3) Suggest Improvements for Software Performance, GUI, Functionality 4) Design Work Flows 5) Worked as Liaison between Customer and Development Team 6) Software Technical Documentation (User Guides, Creating Help Files .CHM)10) Updating WIKI Sites as per requirement 7) Server Management & Administration 8) PACS Administration & Management 9) Website Designing & Development

    $22.22 /hr
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  9. Alexander D.

    Alexander D.

    Web-developer

    Ukraine - Last active: 1 month ago - Tests: 6

    I am a Frontend Web Developer, PHP Developer and a freelancer. As a freelancer I am open to work with individual customers, as well as agencies looking for a specialist in the fields mentioned above. I specialize in HTML, HTML5, CSS, CSS3, PHP(OOP, MVC, Yii), MySQL and JS (mostly jQuery, but pure JavaScript are not foreign to me). I know what W3C and standards are. I always write a clean, readable code, and I know what an object oriented programming is. I prefer to cut the layout myself, then code it and put as much as I can into CSS. I know crucial basics of SEO and Accessibility. I am doing my best not to use the phrase: “it cannot be done”. I have experience with Responsive Design. I am hardworking, precise, reliable and responsible. For private projects I use the Yii framework based on MVC architecture. I embrace every opportunity of a new challenge - especially one with good documentation.

    $11.11 /hr
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  10. Michael Toney

    Michael Toney

    Researcher, Consultant, Architect, Project Manager, Author

    United States - Last active: 8 days ago - Tests: 1 - Portfolio: 9

    Dr. Toney is a technologist, researcher, consultant, and leader with greater than 25 years’ experience in the design, development, and transformation of organizations and supporting technologies. He has held a succession of leadership positions with responsibility for project, group, and task management in developing and implementing global process and technology projects. He has an affinity for pattern recognition, codifying patterns and discerning information. He has focused this skill on many different industries and for the past several years, on terrorist organizations and leaders. He shares a patent for a business modeling methodology and software application as a proof of concept for architecting organizational capabilities years ahead of the commercial market. He also holds two patents pending for a method and software application that predicts civil unrest and violence. He holds a Doctorate in Business Administration, specializing in organizational behavior, analysis and transformation, and terrorist organizational behavior and performance. He also teaches graduate-level organizational and leadership courses.

    $35.00 /hr
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