Internet Security Freelancers

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Internet Security Job Cost Overview

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

Upwork Internet Security Jobs Completed Quarterly

On average, 23 Internet Security projects are completed every quarter on Upwork.


Time to Complete Upwork Internet Security Jobs

Time needed to complete a Internet Security project on Upwork.

Average Internet Security Freelancer Feedback Score

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

Last updated: July 1, 2015

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  1. Ratko B.

    Ratko B.

    Network System Engeener

    Serbia - Last active: 5 days ago - Tests: 4 - Portfolio: 3

    I have 24-years experience in network projects including design, implementation, system administration and in software development. For the first 5 years of my career I worked on software development: coding and especially testing. For the last 18 years I'm working on implementation and maintenance of University of Nis WAN. Last 13 years I'm deeply involved in AMRES (Academic Network of Serbia) project. Don't fix it if it ain't broken, don't break it if you can't fix it! SKILLS SUMMARY Operating Systems: *nix (SGI IRIX, Linux, SCO, FreeBSD), MS Windows 3.1/9x/Me/2K/NT/XP/2003/Vista/W7/2008 LAN & WAN: Ethernet, Fast Ethernet, Gigabit Ethernet, FDDI and Wireless LANs. T1/T3, SDH/SONET, Frame Relay, WDM, ISDN, ADSL, SHDSL, Cable Modems, Cellular, X.25. Network Protocols: TCP/IP, IPv6, UDP, OSI, CDP, IP Multicast, IPSec, VoIP, Routing, VLANs, Bridging, Trunking, VPN, SNA, DLS Network Services & servers: SMTP/POP3/IMAP, FTP/SFTP, Telnet/SSH, HTTP, DNS, DHCP, NNTP, NTP, LDAP, SNMP, NETBIOS Network Equipment: various types of modems, switches and routers (mostly Cisco). Cisco IOS software. Cisco routers & switches: Catalyst 65xx series, Catalyst 35xx series, Catalyst 29xx series, 16xx series, 17xx series, 25xx series, GBIC, Cisco Access Servers AS36xx. Programming Languages: C, Pascal, MS Visual Basic, Unix Shell scripting, JAVA Script, PHP, HTML, Flash.

    $20.00 /hr
    216 hours
  2. Terae D.

    Terae D.

    Experienced Virtual Assistant

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

    Everyone needs a bit of help in their personal or professional life, but not everyone can afford to hire an assistant. You need a trusted partner to take care of your admin so you can get back to living your life. Hiring me to work as your personal Virtual Assistant will free up your time to focus it where it matters most. When you work with me, you're getting a highly talented person with a diverse set of skills. Raised in the Silicon Valley, I'm part-cyborg, with highly developed and intuitive computer learning skills; you can count on me to know my way around the web with ease. I have spent 10+ years in the corporate world, have a B.A. in Political Science, given a speech at the UN Headquarters in N.Y., traveled extensively, started my own business, and much more. Developing a working relationship with me will give you the trust you can rely on since you can count on me to always: -Conduct myself professionally and respectfully -Be fluent in written and spoken-English, with superb writing skills -Take safety measures to secure your information and mine -Navigate the digital world with efficiency and speed to save you time and money -Do great work -Be reliable -Help you get what you need

    $20.00 /hr
    19 hours
  3. Jitender Singh

    Jitender Singh

    System Administrator, Technical Support, Customer Service

    India - Last active: 2 days ago - Tests: 6

    Hello everyone, I Jitender Singh, having experience of almost 9 yrs in Technical Support and Customer Service with all Multinational companies, I have worked with companies like Exl services, HCL Technologies, DELL International and iYogi Technical Services. I have 5 yrs of experience in Customer Service. During my 4 years experience in Technical support, I have acquired demonstrated ability in all aspects of troubleshooting, installations, and configuration for a variety of desktops, laptops, hardware, and software. I’m highly skilled in delivering very complex technical information. In addition, I am task oriented, get pleasure from accepting challenges, and persistently keep pace with the most recent advancements in the IT field.

    $11.11 /hr
    214 hours
  4. Alexander Z.

    Alexander Z.

    C/C++/Swift/iOS/Android/Embedded Developer, Security Analyst & DevOps

    Belarus - Last active: 15 hours ago - Tests: 11 - Portfolio: 1

    Over 14 years in IT, 7 of which adding value to such a corporate giants as Oracle/Hyperion/EPAM and UPCBroadband/Liberty Global. Client-focused, best practices oriented IT adept with an unstoppable can-do attitude. Fast learner - picked up Swift/Objective-C from scratch in just one week - so.. the sky's not the limit :) Got a complete command of the following expertise areas: Web - HTML, HTML5, CSS, JavaScript, Ajax, jQuery, XML, JSON, PHP, J2EE Programming - C, C++, Qt5, QML, Swift, Objective-C, Java, SQL, T-SQL, PL-SQL, brainf@#ck Web/Application servers - NGINX, Node.js, Apache, Tomcat, Weblogic, WebSphere, MS IIS Databases - Oracle, DB2, MSSQL, MySQL, BerkeleyDB, MongoDB, SQLite, NoSQL, XML, IMDB Desktop/Server OSes - Windows, Linux (CentOS, Ubuntu, Debian, Arch Linux, Gentoo, Kali), AIX, Solaris, HP-UX Mobile/Embedded - Android, iOS, Raspbian, ArchLinuxARM, OpenWRT, DD-WRT, Buildroot, Openembedded, Yocto, Asterisk, FreePBX, Windows 10 IoT Embedded platforms/MCUs - ARM, Videocore, Raspberry Pi, Atmel, Arduino, PIC QA/Testing/Automation - Selenium/WebDriver, TestNG, NUnit, JUnit, SilkTest Virtualization - VMWare vSphere/ESX/ESXi, Xen, XenServer, KVM, QEMU Cloud - Amazon AWS, Google GCE, MS Azure, Heroku, My current objective is to get involved into any kind of challenging/creative/scientific/research activities allowing to get in touch with modern and innovative methodologies and to make best use of my existing knowledge and expertise. Preferred employment areas – Embedded Development, MCU Programming, Robotics, Computer Vision, AI, Machine Learning, Human-Computer Interaction, Brain-Computer Interfacing, Bio-feedback, Neuroscience and/or Technical Support.

    $25.00 /hr
    0 hours
  5. Vu N.

    Vu N. Agency Contractor

    Strong C++,Linux, Java, PHP, MySQL, SpringMVC, AngularJS, HTML5...

    Vietnam - Last active: 4 days ago - Tests: 11 - Portfolio: 12

    -Graduated with two degrees (Computer Science & Degree of Master Data Transmission and Network Computer) from in one of the best universities. -Have 10 years experience of working with customers come from US, UK, Japan, Germany, Australia. -Have 12 years of experience working C++, PHP, Java, REST / SOAP API, SockJS, MVC Model, AngularJS, Oracle, MySQL, HTML5, CSS3, AngularJs, PhoneGap, Backbone, Linux Kernel Programming, Embedded System, Device Driver and Application... -Be committed, high responsibility with critical, systematic decision making. -Have 10 years of experience working OS System: Sun solaris/RedHat/Debian,Ubuntu, Fedora Core… CAREER HISTORY AND EXPERIENCE: EDUCATION: -Bachelor of Computer Science -Degree of Master about Data Transmission and Computer Network. EXPERIENCE: 1. Developing website: -Using PHP, WordPress, MySQL -Binding pages on the web app from template plugs in. -Design GUI -Implementation WebService to provide APIs to the web app. -Encode/Decode JSON -Embed third party (API...) to the web app less 2. Developing website: Customer: UK -Binding home page, tour, price... -Using PHP, MySQL -Design GUI -Implementation WebService to provide APIs to the web app. -Encode/Decode JSON -Embeded third party (API...) to the web app. 3. Develpoing website: Customer: Australia Responsibilities: -Implement models to decode from JSON to the model. -Build templates to binding models to render to html layout file. -Design layout html files with difference styles. -Working directly with customer. -Do review code from Crucible. -Using JIRA to manage task. Technologies used in project • Java Core, Spring MVC 4 • • HTML , JavaScript. • • Encode / Decode JSON format. 4. Ocado-Pick Customer: UK Company name: Harvey Nash VN Title: Principle Software Engineer Duration: 06-2014 – 09-2014 Responsibilities: -Implementing Framework to build the project that will provide API to communicate with other Hardware systems, and Web App by using ActiveMQ, Jms Broker, SockJS, AngularJS. Working directly with customer to get the best design/solution for the framework. Technologies used in project Spring MVC Web SockJS ActiveMQ AngularJS JBehave Achievements: Improved Java programming skill. Have understanding ActiveMQ, WebSockJS, AngularJS, Jbehave. 5. Peninsula Business Safe Mobile Customer: UK Harvey Nash Title: Principle Software Engineer: Duration: 09-2013 – 04-2014 Description Business Safe Mobile system enables users to manage business safe work such as task management, risk management, accident management etc. The system is the extension of the Business Safe Online system. The system will be accessible in offline mode. The system will be compatible with multiple platforms such as Android, iOS, windows phones and blackberry. Responsibilities: Implement following the below functions for mobile web application. Employee Management Task Management Risk Management Accident Management Technologies used in project JSON web-service. JavaScript libraries: Backbone , jQuery Mobile. HTML 5 and CSS 3 6. Wifi Location Customer: Japan Company name: Harvey Nash VN Customer: Japan Title: Principle Software Engineer: Duration: 09-2013 – 04-2014 Responsibilities: This project aims to help detect a position a user in a location (floor) base on communication with MSE (Cisco Device)Implement Backend (Web Service) using SpringMVC to provide API to Mobile Web Application. The backend will communicate with MSE (Cisco device) to get real position of the user in the geofence in time interval and notify to the mobile app for the current user location by push notification base on APNS/GCM Server. The web app using AngularIS to developing shows the user position in the floor . Manage the team to resolve the issue, fix bug, discussing with customer to get the best design/solution, to suggest business Logic… Technologies used in project Socket TCP/IP MSE Cisco Device AngularJS SOAP API 7. Camera PB771 Customer: Canada Company name: NxComm Position: Principle Software Engineer Team size: 3 Duration: 9 months Description: Keep an eye on your baby better than before with our video baby monitors. Monitor your baby privately, securely with zero interference with baby video cameras. Using RF technology, these video baby monitors deliver crystal clear audio and video any time of the day or night. Now capture special moments with one-touch instant recording and connect remotely to watch your baby from anywhere Responsibilities: -Implement driver to trigger gpio interrupt . -Implement driver for Radio Frequency ( CV2055), socspi, plugins -Encode/Decode audio/video frames by using FFmpeg. -Burn firmware to upgrade kernel. Hardware: Chip ARM, CV2055 OS: Android , kernel: linux -sunxi Technologies used in project CLinux kernel Programming FFmpeg, H2.64 SPI Protocol 8. Wifi Location Customer: JP Company name: Harvey Nash VN Customer: Japan Position: Principle Software Engineer Team size: 3 Duration: 12 months Responsibilities: This project aims to help detect a position a user in a location (floor) base on communication with MSE (Cisco Device) The backend will communicate with MSE (Cisco device) to get real position of the user in the geofence in time interval and notify to the mobile app for the current user location by push notification base on APNS/GCM Server. Manage the team to resolve the issue, fix bug, discussing with customer to get the best design/solution, to suggest business Logic… Technologies used in project Socket C++, TCP/IP MSE Cisco Device SOAP API, REST API 9. NodeB UMTS Network (Alcatel Lucent) Customer: Germany Duration: 4 years Company: Harvey Nash VN Customer: Germany – Alcatel Lucent Position: Principle Software Engineer Team size: 10 Project: NodeB UMTS Network Most functionalities that involved: -FN 121647 D4U (OneBTS) -FN 125180 - Rx-Only Antenna Cross Connect_V01.03 -FN 120415/120799 – Activation of 2nd PA / Anntena Cross Connect(OneBTS). -FN 27649 – Native IP Iub in OneBTS. -FN 123895 - Activation CPRI Rate 2 to support 12 cells on NodeB (Author). Responsibilities: -Implementing FN 121647 D4U (OneBTS) -Implementing FN 125180 - Rx-Only Antenna Cross Connect_V01.03 -Implementing FN 120415/120799 – Activation of 2nd PA / Anntena Cross Connect(OneBTS). -Implementing FN 27649 – Native IP Iub in OneBTS. -Design / Implement/ Manage Team/Fixing bugs FN 123895 - Activation CPRI Rate 2 to support 12 cells on NodeB. -Training members in team -Break down tasks -Estimation tasks -Communication with customer and colleage to design together -Manage team to developing task, fixing bug. -Discussion how to give a good solution/resolve a problem, fix bugs. Technologies used in project VxWork, Sun Solaris, using Rose RT for design & coding Backhaul Network, UMTS Network, RF, RNC, NodeB 3G. Perl scrip Clear case RoseRT. C++/Linux Programming, Purify, gdb. Host Test, Target Test. Studying related telecommunication documents. RF Head/ Radio. 10. SENSITIVE OBJECT Customer: France Compay: Greystone Data System Duration: 24 months Position: Senior Software Engineer Team size: 3 Customer: France Responsibilities: Implemented VM framework Technologies used in project USB Interfaces USB Audio Codec C++ on Linux Programming Virtual Keyboard Linux Mandriva 10, Red Hat 9,Fedora Core,libreadline5, libreadline5-devel Using the gdb tool for debug the program Using the valgrind tool for check the memory leak program Using the alsa driver for record signal from the USB Audio Programming on the X11 to simulation the mouse and keyboard Achievements: Improved C++ programming skill Understood Linux service, socket, name piped, CPP unit test, multi-thread and multi- monitor programming. Upgraded kernel. Having knowledge of Linux os system. Implemented the Spline Algorithm. Approved c/c ++ programming skill. Knew about creating rpm package , deb package 11. DATA FAST 5 Customer: US Company: Greystone Data System Duration: 24 months Position: Senior Software Engineer Team size: 4 Company: Greystone Data System Customer: US About Project: Works with any IDE, EIDE, or Ultra DMA Drives Data transfer speeds exceed 3 GB/min. Data transfer speeds exceed 3 GB/min. SmartCopy mode copies to dissimilar drives in the same load Copies up to 5 Targets simultaneously Will copy any operating (O/S) system (Mirror mode.) For faster copying, SmartCopy mode supports VFAT (win ’95), FAT12/16/32, NTFAT, NTFS and Linux EXT-2 systems Automatically formats and partitions Target drives during duplication process Responsibilities: Write a driver for the DF5 machine. Defined the commands for the DF5 Catch the interrupt happened by systems hardware of the DF5. Wrote the algorithm smart copy for FAT32, NTFS,FAT16 Technologies used in project Linux Kernel Programming. ARM 9,ARM 7 Character device PCI Achievements: Improved c programming on the Linux kernel skill. Knew how to write a character device, block device. Having Knowledge of PCI, ATA. 12. LCD PICTURE FRAME IV Duration: 2 years Position: Senior Software Engineer Company: Greystone Data System About Project: LCD Picture Frame IV allows you to take your digital photography to the next level. Photos are memories and memories are best when shared. Now you can share your priceless memories with everyone and make the most of every magical moment in your home or office. LCD Picture Frame is the best way to display the fruits of your labor. Responsibilities: Follow up and control the process of implement projects Researched and modified source code for EM8620L chip of Sigma design Programming and compiling on Uclinux OS Researching boot loader to upload code for customer. Learning Make file, script, hot-plug for USB, process, thread. Write functions display and effects for transition pictures. Writing block device driver, character device driver. Design remote (IR) functions for controlling LCD PICTURE FRAME IV. USB Interface, Wireless. writing the romfs to ROM , Boot Loader Technologies: UcLinux OS c++, Linux kernel programming. Lib, Makefile and script on Linux operating system. chip sigma EM8620L Wireless ,USB driver Achievements: Understood Boot loader uclinux. Having more knowledge of downloading the firmware to ROM. Having knowledge of hardware. Knew Make file, scripts, driver USB. Hot plug USB, boot loader. Knew how to use Linux operating system. Having more experiment about JPEG, PNG , BMM,GIFF … Having more knowledge of OSD, Remote Control using IR Having more experiments to convert, resize image.

    Associated with: Dai Bui

    $7.00 /hr
    63 hours
  6. Emi marie G.

    Emi marie G.

    Researcher, Accurate Data Entry

    Philippines - Last active: 2 months ago - Tests: 8 - Portfolio: 1

    I am looking for opportunities to utilize my skills in Internet research and data entry. My experience as a computer technician requires me to be precise and accurate when handling hardware and software assembly/servicing/troubleshooting which in turn helps me to be attentive to details, work with less supervision, deliver quality work, persevere and be honest.

    $3.00 /hr
    6 hours
  7. Fernando C.

    Fernando C.

    Senior Systems Administrator

    Canada - Last active: 23 days ago - Tests: 3

    Over 24 years of experience in IT systems administration: Unix, Windows, Linux, Solaris, Novell, TCP-IP networks, Firewalls, Security and Telecom. During the last 4 years he is working as an Infrastructure Architect of complex production systems; he has completed various certifications to demonstrate his technical expertise and his engagement for the quality of the work he delivers. Wide expertise and over 7 years of experience in the maintenance, monitoring and troubleshooting of complex Dev / Pre-Prod / Productions systems and multiple tier infrastructures. He has an understanding of the telecom network, firewall, infrastructure security, ssl certificates, web servers, application servers, middleware, storage area network systems (SAN) and the databases of a solution. He has remained up to date with the arrival of Virtualization technologies: VMware ESX, vCenter, vSphere, Hyper-V, XEN. He has also participated in various Cloud computing projects in the last 4 years After obtaining a certification in Cloud computing security in November 2010, he continued to renew his training and hands on expertise in Architecture design, and Operations of E-commerce Platforms using traditional systems, and emerging technologies such as: • VMware vSphere 5 , VMware vFabric Cloud Application Platform, Tomcat 5/6, • Apache reverse proxy custom Application Firewalls, Web farms, F5 Load Balancer rules. • Virtual network design, Multitenant 3-tier Private Cloud Architectures, Cloud Security • Microsoft server 2012, Windows 8 ent, , Microsoft Private Cloud and new Systems Center management tools • Cloud Management and Monitoring tools using traditional tools and emerging Cloud infrastructure administration technologies. • Automated systems deployment and administration tools using Puppet, Chef • Integration of Applications and Automation in a variety of languages including Java, Php, Python, Perl, Bash

    $39.00 /hr
    151 hours
  8. Maciej D.

    Maciej D.

    Expert in network technologies

    Poland - Last active: 28 days ago - Tests: 2

    In-depth knowledge of networking, experience in writing ruby scripts for automating the administration process as well as coordinating network/server related projects. I've been designing and deploying networks, including paperwork, putting cables in the walls, designing security policies and implementing them on firewalls and IPSes. Web development - anything from deep, dark server-related backend to client side fronted. Using Node.JS and Express daily. Done a lot of consulting concerning running small and middle-sized company networks, managing web development projects etc.

    $80.00 /hr
    0 hours
  9. Artem Lalaiants

    Artem Lalaiants

    Linux System Administrator

    Ukraine - Last active: 3 months ago - Tests: 3 - Portfolio: 2

    I'm a highly competent and organized Linux System Administrator with more than 4 years of experience in Linux Administration, hosting environment and maintenance of production and development servers. In-depth knowledge in management and configuration of Linux based servers, development of HA systems and security policies. Fascinated with automation of processes in shell and Python. - Linux maintenance (CentOS, Debian, Ubuntu, CoreOS, RHEL); - Cloud hosting (Amazon EC2, RDS, S3, DigitalOcean Droplets); - Virtualization: (VirtualBox, Vmware, Openvz, Xen); - Web servers (apache, nginx); - Databases (MySQL, PostgresQL); - Monitoring (zabbix, nagios) - Mail servers (postfix, sendmail, antispam/ antivirus: clamav/spamassassin/amavis, courier, dovecot); - Networking (DHCP, DNS, VPN, OpenVPN, firewalls: iptables/ipfw, qos, proxies); - Python programming. Graduated from V.N. Karazin Kharkiv National University, Kharkiv, Ukraine, Department of Complex Information Technologies. Have a master's degree.

    $10.00 /hr
    0 hours