Top Upwork Freelancers

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  1. Aaron Hoskinson

    Aaron Hoskinson

    Node Exper

    United States - Tests: 1

    I am a node.js specialist with a strong footing in mongdb, angular, PHP and ember. I also have a background in C++ and MySQL. I love to work on challenging problems and I love building things more. I have very high availability and I am very responsive about my progress. I welcome any criticism and enjoy perhaps looking at things in a different light.

    $6.00 /hr
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  2. Jordon Peeple

    Jordon Peeple

    Cisco Network Engineer

    United States - Tests: 4

    Over 7 years of experience designing, implementing and Troubleshooting Medium to Enterprise size networks. Currently holds a Cisco Certified Network Professional certification in Route and Switch, Cisco Borderless Networks R&S Support Specialist certification. Actively Pursing Cisco Certified Internetwork Expert, having passed the written portion. Skilled in Cisco routing and switching, Wireless, and Security

    $88.89 /hr
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  3. Jackson Vidal

    Jackson Vidal

    Software Development Analyst

    Brazil - Tests: 1

    Over 8 years in software development, I've already worked in every kind of projects, big and small ones. Recently I worked in a startup company of payment gateway for e-commerce as R&D (Research and Development). Technical Specializations: .NET Framework; MVC; WebForms; WCF; WebAPI; JavaScript; jQuery; AngularJS; Data-interchange formats JSON; XML; Databases: SQL Server 2008 and 2012; MySQL;

    $45.00 /hr
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  4. Diogo Braga

    Diogo Braga

    Game Developer

    Portugal - Tests: 1

    Over the course of 6 years, I have developed game mechanic engines in game maker for. I have also made a few games for android using game maker as well and I've done a few applications for windows using Visual Studio. I also possess experience in java and c/c++ development, whether it's an application based for consumer purposes or a scientific-driven development. My best skill is making video games using Game Maker and I am looking for opportunities in video game development and desktop application development. I also possess some experience in music composition and vocal singing.

    $3.33 /hr
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  5. Anton Piskunov

    Anton Piskunov

    Team Lead, Web Developer

    Russia - Tests: 1

    Hello, my name is Anton I have more than 6 years experience in web development and project management. I've developed more than 300 websites and other web-related projects. I have a lot of experience in following areas: - Programming Languages: HTML, CSS, JavaScript, PHP, Golang, Java - Backend Frameworks: Symfony, Laravel, Yii, Kohana, CodeIgniter - Frontend Frameworks: jquery, backbone, angular, ember, lodash, underscore, twitter flight - Pre-processors: LESS, SASS (SCSS), Jade - Databases and Storages: mysql, postgresql, mariadb, percona, redis, mongodb, riak, tarantool, zookeeper, memcache (-d), elasticsearch, logstash - Mobile Development: iOS, Android, Windows Phone - System Administration: Debian and debian-based OS, LAMP/LEMP stack's - VCS: Git, SVN - Team Leading

    $16.67 /hr
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  6. Yavor Yanakiev

    Yavor Yanakiev

    System Network Engineer

    Bulgaria - Tests: 2 - Portfolio: 1

    An IT Professional with CCIE(Lab Attempted),CCNA,CCDA, CCNP,JNCIA, JNCIS-Security and more than 10 years of experience in Network designing, planning, and implementation. Possess extensive experience with hands on products like Routers, Switches, Firewalls(UTM Devices), Servers, Link Balancers, PABXs(Telephony Systems). I was involved in a complete setup of Data Center in my career - design, implementation and support. SYSADMIN: Debian Linux / Ubuntu Linux / Red Hat ES Linux / CentOS Linux / FreeBSD Unix /pfSense Unix / Cisco Routers & Switches FTP SERVICES: proftpd, vsftpd, pure-ftpd, sftpd, tftpd FILE SHARING SERVICES: Samba, NFS PRINTING SERVICES: Cups CACHE SERVICES: Varnish, Memcache, MemcacheDB, eAccelerator WEB SERVICES: Apache v1/2, Nginx, PHP v4/5, Suhosin MAIL SERVICES: Postfix, dovecot, courier, RBL, postgrey, spamassassin, amavis, razor, pyzor, clamav, dcc DB SERVICES: mysql v4/5, phpmyadmin, mysqlcluster, postgresql v7/8, phppgadmin DNS SERVICES: bind9, tinyDNS, powerDNS PROXY SERVICES: Squid, SquidGuard, DansGuardian, URLFilter, haproxy, pond FIREWALL SERVICES: iptables, ipfwadm, netfilter VERSIONING SERVICES: SVN, CVS, GIT IDS SERVICES: Snort, PortSentry, Fail2ban, Bastille, Chkrootkit, Rkhunter, Tiger, Tripwire, Aide MONIT SERVICES: Nagios, Cacti, Zabbix, Mon, Monit, Zenoss, Ntop, Munin KERNEL SERVICES: kernel v2.4/2.6, grsecurity, openwall, other patches STATISTIC SERVICES: Awstats, MRTG, Vnstat, Htop, Bwm-ng NETWORK PROTOCOLS: TCP/IPv4 IPv6, IPX, ROUTING: Static Routing, Rip v1/2, (E)IGRP, OSPF(V3) SWITCHING: VLAN, VTP, STP, Inter VLAN Routing WAN: PPP, FR, Network Security, ACLs, IP Addressing, NAT NETWORK MANAGEMENT -Planning, designing, configuring and managing LAN/WAN ensuring maximum network uptime. - Carrying out installation & configuration of network, troubleshooting network problems. - Monitoring and analysing the network including Netflow products(Manage Engine Netflow), Solar Wind Orion, Wire Shark, Sniffer Pro, MRTG ,Cacti, Ethereal, Deep9s Edge Security Profiler, Nmap, Kiwi Syslog Server Possess sound knowledge of: - Cisco IOS up to and including version 12.4 – Advanced Enterprise Services. - Catalyst Switches IOS up to and including version 12.4 - Advanced IP Services. - Catalyst Switches including 1900, 2950, 2960, 3550, 3560, 3750, 4506 and 6509. - Cisco Routers – ISR800,1700, 3600, ISR 2801,ISR2821, 7609, ASR1002 - Routing protocols RIP, OSPF, IGRP, EIGRP, IS-IS, BGP, static & default routing. - IP Multicast technology – PIM implementation, IGMP -VLSM, PPP, IP Addressing, Redistribution, Network Address Translation, TCP/IP, DNS, DHCP, Network Aggregation - Switching technologies like VLAN, Inter-VLAN Routing, Ether Channel, VTP, MLS, HSRP, VRRP, UDLD, STP 802.1d and 802.1w - Remote Access Solution like ISDN, Frame- Relay, PPP and HDLC. - Network designing and trouble-shooting. Network Cabling and Infrastructure. - Elfiq link balancer basic experience http://www.elfiq.com/ - Basic experience with MPLS VPN configuration and implementation with PE-CE routing protocol configuration Network Security - Implementing & configuring VPN ( Open VPN, Site to Site VPN,PPTP, Mobile IPsec VPN) - Cisco Firewall - PIX 506e, ASA 5505, 5510,5520 – experience in maintenance and configuration - Cisco IPS/IDS Firewall - ASA 5505 with AIP SSC-5 - Linux IPS/IDS Firewall - Deep9s - basic experience in maintenance and configuration - Linux Firewall - Pfsense - FreeBSD based firewall in VMware environment - Handling security of Cisco IOS - Zone-based Firewall - Managing Access Control (ACL), Traffic Filtering - Implementing and monitoring information security policies. - Handling network and information security audits. VOICE SERVICES - Cisco ISR 2821 with CUE – configuration of Auto attendant system, Dialling plans, Voice Mail, Fax services, E1, Pots, configuration of IP telephony, Accounting and Billing, Conference Service; - Cisco Unified Communications 520,540 – Dialling plans, Fax services, E1, Pots, IP telephony, Voice Mail; - Intercom – Helios IP; Operating System Knowledge - System administrator experience with various operating systems - Windows 3.11/95/98/2000/2003/XP,Vista,Win7, DOS, FreeBSD(basic), Debian(basic), Windows server editions(Windows 2003,Windows 2008 R2,Windows SBS2011;) Special Services - SMS gateway Ozeki NG http://www.ozekisms.com/ - Nextiva and Loronix video server and client software; Verint Networking appliances – encoders and decoders http://verint.com/ - Axis video software and encoders http://www.axis.com/ Virtualization - VMware ESXi 4.1, ESXi5 - Microsoft virtualization – Hyper V server - Blade Centre H, HS22

    $15.11 /hr
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  7. Xavier Canal

    Xavier Canal

    Ruby on Rails Developer

    Spain - Tests: 3 - Portfolio: 4

    Ruby on Rails back-end developer since 2011 based on BCN. Really like care details and also talk about design and usability. I've been working on itnig, a business accelerator helping startup's to succeed in lean way. Since February 2014, working in Playfulbet as a pure backender. In my daily tasks I deal with redis, elastic-search, sidekiq, memcache, mysql, capistrano, jenkins, semaphore, TDD, and so on. And also working with Git, Vim. I've studied 5years of bachelor (spanish system) and working on production webs since 2010.

    $25.00 /hr
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  8. Adnan Ramzan

    Adnan Ramzan

    BI Developer

    United Kingdom - Tests: 1 - Portfolio: 2

    I did my Bachelors in Computer Science from Punjab University Pakistan. After successfully graduating i started working in Pakistan with the first house of Pakistan and that is Systems Limited. Over the last 2 years, I have developed a wide range of Dashboards and Reports using Microstrategy, SSRS, PowerPivot, PowerView, Performance point Dashboard and Tableau. I worked on SSAS and successfully deployed cubes on client side. I implemented Time Intelligence in SSAS using MDX. I created reports both on OLAP and OLTP systems and worked on ETLs using PL/SQL and SSIS. We have number of systems from which we have to extract data and transform it according to client requirement and then load it in out database. I carry out all these tasks and developed number of packages to load data from different systems. I am seeking opportunities to build BI solution from the ground up for you or your business. I also have some experience in the following areas: T-SQL, .Net, OOP, SharePoint and HTML.

    $20.00 /hr
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  9. Nickolay S.

    Nickolay S.

    Web developer. Symfony2. Angular.js

    Russia - Tests: 9

    Highly professional php/symfony developer with over 5 years experience in complex projects. I also am master in js, databases, c++ and linux administration. Have experience in mobile, desktop and server software development. Can easily learn new languages, tools and software. Perfect both at working independently and as part of a team. Technical skills: Languages: php, javascript, html5, css3, C++, Qt/QML, .net/C# Web frameworks: symfony,silex,laravel; backbone.js,angular.js; bootstrap,foundation Mobile frameworks: Unity, Marmalade, Cocos 2d Platforms: Windows, Linux Database: SQL Server, MySQL, Postgesql, Mongo, Redis

    $11.11 /hr
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  10. Aleksandar Savic

    Aleksandar Savic

    Electrical maintenance and project engineer

    Serbia - Tests: 1 - Portfolio: 5

    Nobody knows enough to think that he does not need learning! Electrical project designing. Drawing electrical schematic. Developing Siemens Step 7, Fatek and other software for PLC. Developing WINCC, BEIJER and similar HMI software. AutoCAD 2D and 3D Microsoft Word and Excel. I work for money, but I really care about client satisfaction!

    $11.11 /hr
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