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On average, 113 Network Security projects are completed every quarter on Upwork.


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Time needed to complete a Network Security project on Upwork.

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Network Security Upwork freelancers typically receive a client rating of 4.75.

Last updated: October 1, 2015
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Tim T.

Tim T.

Senior Principal Consulting Hacker _ Security Specialist

Netherlands - Tests: 4

As ethical hacker it's my duty to identify and report vulnerabilities in networks; web applications etc. I'm a hard workers; out-of-the-box thinker and love to make things secure. Being an OCSP guarantees a quality job for whoever i work for. I'm not utilizing the standard tools; but provide excellent work with manual testing and detailed reports. With very well documented advisories and guides to fix problems. I've worked for energy companies; telco's; softwareco's and data-centers.

100% Job Success
$75.00 /hr
53 hours

Luis fernando A.

Luis fernando A.

Linux Sysadmin and AWS Architect with huge web hosting experience

Brazil - Tests: 5

I'm a creative and hardworking Linux System Administrator and Amazon Web Services Architect and developer. I've been supporting and delivering IT solutions especially for web hosting companies and its set of open source software (Apache, PHP, RoR, MySQL, HAproxy, iptables, OpenVPN and much more) since 2005. I've also worked at IBM managing a farm of more than 1000 Linux and AIX servers as well as its proprietary middleware (DB2, IHS, WebSphere and others).

100% Job Success
$50.00 /hr
45 hours

Roney B.

Roney B. Agency Contractor

Solution Architect for mobile, web based and SAP applications

India - Tests: 5 - Portfolio: 2

I am a Solution Architect with entrepreneurial skills. My skill sets are around niche technology areas and I particularly expertise in solving complex solutions (technology and business) and solve bottlenecks for business. I have worked with SAP for almost 10 years and have lanscaped, designed and perfected heterogenous systems and Enterprise Application Integration. Identity Management, HANA is one more area where I excel. Allow me to serve your technology needs and boost your business. My expertise in relevance to the current technology suites run around various Java Script Frameworks, web applications, REST API, OAuth, Rails, Java/J2EE, CakePHP, etc.

Associated with: Vertmac Technologies LLP Agency

$70.00 /hr
1,651 hours

Hans W.

Hans W.

Senior System Engineer

United States - Tests: 2

Accomplished System Administrator with 16 years of experience in research and instructional computing support. Comprehensive experience with Linux, Windows and Solaris. Specialties * Enterprise System Administration * Storage Management * Network Engineering * Datacenter Operations

100% Job Success
$44.44 /hr
679 hours

Nikolay Popov

Nikolay Popov Agency Contractor

Network Administrator

Ukraine - Tests: 5

11 years expirience in ISP network administration Mainly worked with Cisco, HP, Foundry equipment. Linux/FreeBSD servers administration (Hosting services, Traffic Engeneering) VoIP (Cisco CME, Asterisk) Passed Cisco BSCI/BCMSN/TSHOOT trainings.

Associated with: Altima Web Systems

75% Job Success
$22.22 /hr
13 hours

Dave Hodson

Dave Hodson

U.K Electronics and Programing

United Kingdom - Tests: 3

I'm a new programmer from the UK, I have years of experience in electrical, and security in the physical field, due to health problems my physical career has been cut short but I'm really enthusiastic to start something new and try and use my previous experience of practical solutions into developing and providing solutions. Im currently self taught but will be undergoing education in the very near future to prove my skill level. Experience: Experienced in VB, . NET, and C I'm less fluent in HTML, Java and more web based languages but am willing to learn and improve my knowledge. Experienced in Android, Linux, Windows, Networking and Security. As previously mentioned i have heavy experience in the Security industry and Electrical industry. Im a fully qualified 17th Edition Electrician and would be highly interested in working interfacing software with electrical hardware and possible design. Ive spent a lot of time working with Micro-Controllers/Chips creating electrical devices, from the electronics, Miro-controller programing and front-end software and interfacing it all together. I'm looking for simple projects to start, to build up a portfolio and possible look for full time work for the future. It seems to be important to include that my mother and only language is English.

$18.00 /hr
69 hours

Vladislav M.

Vladislav M.

Cloud Expert / AWS / DevOps / Linux System Admin / Cisco

Malaysia - Tests: 10

Self-motivated professional with strong work ethic and productive self-starter – proven with success being a freelancer at oDesk. Team player - Participated in multiple projects, joining large teams, effectively co-working with other professionals Effective leader - Took over leadership and managed team resources to achieve goals meeting deadlines 17+ years as an Systems Administrator 11+ years as Network Engineer 7+ years as Cloud Expert and SaaS Architect 3+ years @ DevOps Freelancer for last 8 years (over 30,000hrs worked @oDesk)

98% Job Success
$60.00 /hr
41,074 hours

Robert C.

Robert C.

TIBCO Consultant & E-Commerce Architect

United States - Tests: 2 - Portfolio: 2

Good Day and thank you for taking a moment to read my profile! I started working in IT about four years ago as a technical support representative for Simple Helix, a Magento specialist web hosting company. From there, I had the opportunity to spend a year as a Network Analyst for a local, carrier class, ISP before moving on to a position as a Linux Systems Engineer with a Magento development firm. In the present, I work as an Applications Engineer with a focus on the TIBCO stack, most notably AMX, BusinessWorks, EMS, and SilverFabric. I have a very strong background in Linux/Unix administration and have worked extensively with CentOS, Red Hat, and Debian. I've worked with networks from a physical perspective, as a NOC Technican, as well as logical perspective troubleshooting complex application issues. Over the past few months I've taken the opportunity to learn to code in Java and I've recently attended Red Hat training for JBoss EAP 6. I'm a CPTE (Certified Penetration Testing Engineer) and would happily pursue projects as an E-Commerce Architect, Systems Engineer, TIBCO Engineer, JBoss Administrator, entry-level Programmer, or entry-level Ethical Hacker. I am available for new jobs immediately outside of US business hours.

97% Job Success
$33.33 /hr
474 hours

Daniel J.

Daniel J.

Senior Linux Systems Administrator

United States - Tests: 4 - Portfolio: 1

I am a Linux expert. I have been a linux user for 16 years and have used it professionally for 15 years. I was an early adopter of the Nginx web server and over the last 5 years I have been using it exclusively to manage high traffic web sites. I specialize in Linux security and have professional experience securing a web server using methods such-as but not limited to; chroot/jail environments, hardened kernel patches, and role-based access policies. I am an expert at tracking down even the most difficult of problems and most of my clients believe that I have a crystal ball under my desk. I am fluent in Python and PHP and can write everything from small scripts to automate tasks to a full blown command line application.

97% Job Success
$50.00 /hr
61 hours