Browse Network Security job posts for project examples or post your job on Upwork for free!

Network Security Job Cost Overview

Typical total cost of Upwork Network Security projects based on completed and fixed-price jobs.

Upwork Network Security Jobs Completed Quarterly

On average, 93 Network Security projects are completed every quarter on Upwork.

93

Time to Complete Upwork Network Security Jobs

Time needed to complete a Network Security project on Upwork.

Average Network Security Freelancer Feedback Score

Network Security Upwork freelancers typically receive a client rating of 4.74.

4.74
Last updated: August 1, 2015
Clear all filters
  1. Daniel Guillermo Bareiro

    Daniel Guillermo Bareiro

    GNU/Linux and Unix system administrator

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

    I manage and use free/open source software and GNU/Linux (most experienced Debian) since 2000. I have also participated in numerous conventions related to these themes (some of them as speaker) and collaborating with the discovery of bugs in applications for contribute with the community. Specialties: Networks and operating systems security, monitoring technologies. Advanced knowledge of GNU/Linux environments and virtualization platforms. LANs, WANs, VPNs, Firewalls, TCP/IP. Description of services: ---------------------------------- Servers: ====== Installations, configurations and maintenance plans for servers running GNU/Linux or free BSD operating systems range. * Planning, installation and configuration of GNU/Linux systems as both free and open source systems. * Installation, configuration and maintenance of servers of BSD range: FreeBSD and OpenBSD. * Print servers. * Mail servers with spam and virus filters. * Proxy servers. * Fax servers. * Corporate instant messaging servers. * Install and configure DNS servers. Procedures for domain management. * Management servers for uninterruptible power supplies. * Web servers (Apache, PHP, MySQL and PostgreSQL). * Database servers (MySQL and PostgreSQL). * DHCP servers. Networks and Infrastructure: ===================== Installation, maintenance and failure analysis of networks. High-availability systems, mass storage, remote backup, and monitoring equipment and services. * Installation and maintenance. * Firewalls. * VPNs. * DMZs. * RAID, SAN and NAS systems. * Implementation of VoIP telephony systems. * Virtualization systems (for production systems, development and testing). * Remote backup systems. * Monitoring systems. * Control, preventive analysis and resolution of faults in networks. * Installing and configuring high availability clusters. Consultancy: ========== My main goal is to provide a work environment based on trust, integrity and transparency, in order to become your strategic partner to help you realize your projects. My experience in the field of free/open source technologies allows me to offer a wide range of consulting services for your business, which include audit and analysis of systems, applications and networks, migration to free and open source systems, and systems integration, among others. * Migrating to free and open source systems. * Network analysis. * Security analysis. * Configuring applications. * Systems integration.

    $36.67 /hr
    38 hours
    4.92
  2. Pavels J.

    Pavels J.

    Highly skilled C/C++/Linux server-side developer

    Spain - Last active: 6 days ago - Portfolio: 1

    Highly skilled C / C++ / Python server-side developer, with over 12 years experience. My area of interests is in developing high-available, multi-threaded, high-performance Linux network applications. I'm the lead developer, maintainer and the active participant of several popular OpenSource projects.

    $60.00 /hr
    2,470 hours
    4.77
  3. Stepan Birukov

    Stepan Birukov

    Linux system administrator with experience in networking

    Ukraine - Last active: 16 days ago - Tests: 5

    Since 2013, I have been working as Network engineer and Unix system administrator for ISP. I have experience in support business-critical applications and hardware, configuration of network equipment and Unix-based servers, bottlenecks search in high-load Unix systems.

    $15.00 /hr
    0 hours
    4.68
  4. Christopher Jinks

    Christopher Jinks

    Advanced 1st & 2nd Line systems analyst

    United Kingdom - Last active: 9 days ago - Tests: 2

    I can provide 1st and 2nd line systems support to an outstanding standard with impeccable customer service. These include, but are not limited to; -Software -Hardware -Networking -Operating systems -Virtualisation -Thin Client -Microsoft Office packages -Password retrieval -Scripting

    $8.33 /hr
    8 hours
    5.00
  5. Nikolay Popov

    Nikolay Popov Agency Contractor

    Network Administrator

    Ukraine - Last active: 18 days ago - 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

    $22.22 /hr
    13 hours
    5.00
  6. Clint C.

    Internet Security - SonicWALL Adtran Cisco

    United States - Last active: 21 days ago - Tests: 2

    I am a self-driven, highly-analytical SYSTEM/NETWORK/SECURITY ADMINISTRATOR with 18 years of progressive experience helping companies improve organizational security and effectiveness. Adept at the design, architecture, development and maintenance of high-performing secure networks. My skills in the area of systems/network security and administration are complemented by my certifications as a Certified SonicWALL Security Professional, Microsoft Certified Systems Engineer, Cisco Express Foundation Sales Specialist and Apple Certified Systems Administrator. I am proficient in Windows XP/Vista/7, Windows Server NT/2003/2008, Exchange 5.5/2003/2007, Apple OS X Server/OS X workstation, Dell/HP/IBM and Apple servers, Cisco routers/switches and firewalls, Adtran routers and switches, SonicWALL firewalls/email security appliances and SonicPoints, Barracuda appliances, DHCP, DNS, VPN, SSL-VPN, LDAP, Active Directory, SMTP, OWA, HTTP, HTTPS, IIS.

    $80.00 /hr
    10 hours
    5.00
  7. Mateus B.

    Mateus B.

    System Administrator

    Brazil - Last active: 20 days ago - Tests: 4

    I have been working as Linux System Administrator for 7 years. I design and install infrastructures for high-available applications. Expert in all flavors of Linux and Unix - including system setup, administration, security/hardening, monitoring, scripting, and troubleshooting. Heavy experience in various cloud providers including Amazon AWS. Services: ✔DNS ✔Email ✔Firewall ✔Ldap ✔Proxy ✔Web Applications: ✔Apache ✔Bacula ✔Bind ✔Ganglia ✔Iptables ✔MySQL ✔Nagios ✔NFS ✔OpenLdap ✔OpenVPN ✔Postfix ✔Samba ✔Squid ✔Wordpress Programming Languages: ✔PHP ✔Ruby ✔Shell Script Networking: ✔Ethernet ✔Infiniband ✔Wireless Operating System: ✔CentOS ✔Debian ✔Fedora ✔FreeNAS ✔OpenSUSE ✔PfSense ✔RedHat ✔Solaris ✔Ubuntu

    $33.00 /hr
    0 hours
    0.00
  8. Josh Smittson

    Josh Smittson

    Professional Systems and Network Administrator

    Spain - Last active: 5 days ago - Tests: 3

    10+ years of experience in the field. Managed datacenters of up to 5 thousand devices, servers, routers, switches, netlinks. Major Skills and Abilities: .- Network Architectures and Security. .- Routing Protocols. Networking systems and devices. Cisco & Juniper. .- Unix/Linux administration. .- Backups and Systems Recovery. .- Diverse VPNs, SSL and IPSec. Public Key Infrastructure. .- Information Security policies and controls. .- IT Security Auditing. .- Project designing, definition and management. I am a trustworthy, proactive, dedicated professional who gets the job done on budget and time. Looking for long term engagements.

    $50.00 /hr
    0 hours
    5.00
  9. Robert F.

    Robert F.

    System & Network Administrator

    Poland - Last active: 11/29/2014 - Tests: 4

    System & Network administrator with more than 6 years experience. Skills: - OS: - Linux ( Mostly Debian ) - Windows Server ( MCSA Certificate for 2012 ) - Virtualization: - KVM ( libvirt, proxmox ) - XEN ( XEN Project, Oracle VM ) - VMWare - Hyper-V - Networking: - Routing, Iptables, Mikrotik, VPN ( IPSEC, OpenVPN ), VLAN, … - Network Services: - Apache, bind, postfix, iptables, nagios, drbd, ocfs2, more and more - Shell scripting: Bash, PowerShell - DB: MySQL, PostgreSQL, Oracle 11G - Hardware experience: - Servers: HP( ML, DL, Blade ), IBM ( X, Blade ), DELL, TK, Actina - Storage: HP, DELL, IBM, Infortrend - Tape Libraries - and more :-)

    $20.00 /hr
    11 hours
    4.99
  10. Mariusz Z.

    Mariusz Z.

    Penetration Tester, Linux/UNIX Security Admin,Intrusion Analyst, CISSP

    Poland - Last active: 3 months ago - Tests: 9 - Portfolio: 1

    I'm Linux Security Administrator & Web Application Penetration Tester with 8 years of experience in the IT field. I'm CISSP (ID# 478556) and OWASP member. My expertise ranges from designing, building secure & robust systems to analysis of subtle software security flaws. I can help you with: - thoroughly security testing your web application (black-box and/or white-box tests) and helping in mitigating detected vulnerabilities - analyzing and assessing vulnerabilities in your application's underlying IT infrastructure - security hardening Linux/UNIX servers/clusters - recommending solutions and best practices on how to design and maintain secure AWS infrastructures - responding to security incident in Linux/UNIX environment, helping in recovery process (rootkit detection, malware removal, etc.)

    $19.00 /hr
    123 hours
    4.79