Top Upwork Freelancers

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  1. Emily K.

    Emily K.

    Professional Writer and Developer of Ideas

    United States - Last active: 21 hours ago - Portfolio: 6

    Developing original content that instructs, encourages, and educates is my passion. Writing with focus, energy, and organization is my expertise. I create interest-piquing web copy that will help customers learn about your product or service. Great copywriting will communicate who you are and what you can do for your customers that no one else can. You have focused your talents to build a solid, unique company and now it's time to hire a solid, focused writer to set your company apart from the rest.

    $30.00 /hr
    220 hours
    5.00
  2. Timur Birsh

    Timur Birsh

    Unix Systems Expert and Oracle DBA

    Kazakhstan - Last active: 19 days ago - Tests: 7

    Hello, Over the last 15 years, I am working with the following Unix systems: BSD based systems, Solaris and Linux distributions including Debian, RedHat Enterprise Linux, CentOS, Oracle Linux and Ubuntu. Over the past years I have developed a wide range of solutions: VPN, proxy, mail, web, file, Samba, DNS, DHCP, SSO, database, monitoring, backup, virtualization and high availability servers. I am Oracle DBA with the 5 years of experience. I work for financial institution. On my control a 21 databases. Mission critical and big databases runs on the IBM hardware and AIX operating system. Other databases runs under control of Solaris (SPARC) and Linux operating systems. For data protection we use Data Guard. One of the best products of the Oracle is Enterprise Manager Cloud Control. We use it for the databases and hosts monitoring. Its management repository contains a lot of information. It is very useful in building of custom applications (reports, etc). I have work experience with the following Oracle RDBMS versions: 8i/9i/10g/11g. I am big fan of a tasks automation. For small jobs I use shell scripts. For jobs that have complex logic I use Python or Perl. For complex text processing I use awk, sed and shell scripts as a glue. I have 5+ experience of C language programming for Unix. Hardware administration of the following vendors: Oracle (Sun), HP, Dell. I am contributor of the following free software projects: Debian (http://qa.debian.org/developer.php?login=taem@linukz.org), Transmission Bittorrent Client, inadyn Dyndns client. I maintain the following opensource programs: * sXid - http://linukz.org/sxid.shtml * cd-discid - http://linukz.org/cd-discid.shtml I use Git for source code management. I would be happy to help you. Please do not hesitate to contact me.

    $33.33 /hr
    18 hours
    4.97
  3. Andy D.

    Andy D.

    Algorithm Scientist - Machine Learning, Computer Vision, Analytics

    United States - Last active: 21 hours ago - Tests: 1

    For managers in companies who have a complex manual process in need of automation. I am an algorithm scientist with Masters Degree in Signal Processing from Purdue University, and a penchant for outside-the-box thinking. I offer innovative algorithms designed to solve challenging and costly problems. I have over eight years experience designing algorithms, and pull from a rich background of skills and knowledge including: Machine Learning, Computer Vision, Image Processing, Genetic Algorithms, Neural Networks, K-Means Clustering, Support Vector Machines,Time Series Analysis, Fourier Analysis,Regression, System Design and Modeling, Linux System Administration, Website Data Extraction, Statistical Analysis, Predictive Analytics, Matlab Modeling, and C/C++ Programming. Unlike other algorithm scientists, I have leadership and communication skills that can be leveraged to help guide teams of developers to implement customer-facing or real-time versions of the solutions provided.

    $80.00 /hr
    261 hours
    5.00
  4. Steven Stovall

    Steven Stovall

    DevOps, Cloud (AWS/Google), Security. Development: Rails/Python/PHP

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

    I enjoy solving challenging problems and utilizing technology to creatively design efficient, cost-effective solutions to meet business needs. Current Certifications: CISSP, CCNP, Net+/Sec+, MCP Cloud (AWS/Rackspace), Linux, Windows, VMware HA/vMotion/vCenter Open Source Software: Apache, nginx, Redis, elasticsearch, Zabbix, Logstash Information Security Auditing, Configuration, Policy Networking: Visio Diagrams, IPSEC/SSL VPNs, OSPF/EIGRP/BGP, Adaptive Security Appliances (ASAs), Wireless Controllers, F5 LTM, WiFi (RF Design) Information Security: Visio Diagrams (architecture), PCI DSS compliance, Splunk (syslog) Vulnerability Audit and Penetration Testing: Metasploit, Nexpose, Nessus, Vulnerability Reporting, Patch Management Development: Ruby/Rails, Git, Python, PHP, Perl, PowerShell, Bash, .NET

    $60.00 /hr
    26 hours
    5.00
  5. Daniel Yavorovich

    Daniel Yavorovich

    System Administrator

    Ukraine - Last active: 1 month ago - Portfolio: 1

    Operating Systems ● FreeBSD ● Linux Security ● iptables ● openssl ● jail ● clamav ● mod_security ● mod_clamav DNS ● Bind ● PowerDNS (+PostgreSQL / +MySQL) HTTP ● Apache ○ MPM: prefork, worker ○ mod_ssl, mod_php, mod_wsgi ● Nginx ○ Access control ○ Autoindex ○ Fast-CGI ○ uWSGI ○ Proxy ○ Cache ○ SSL ○ upload_progress_module ○ Control panel integration ■ Virtualmin ■ DirectAdmin ■ Plesk Proxy ● squid ○ basic auth ○ transparent proxy ○ cache ● 3proxy ○ http/socks ○ auth Raid ● Linux ○ md(0,1,5,6,10) ● FreeBSD ○ Gmirror / Striping File Systems: ● Ext 2,3,4 ● ReiserFS ● XFS ● OCFS2 ● ZFS (port to FreeBSD) ● CEPH CVS ● SVN ● Mercurial ● GIT ○ GitLab ○ GitoLite Backup ● rsync ● BackupPC ● Bacula FTP ● ProFTPd ● VSFTPD File sharing ● NFS ● SAMBA Control Panel ● Direct Admin ● Webmin+Virtualmin ● CPanel ● ISP-config ● Plesk Automatization ● Puppet ● Saltstack Monitoring ● Zabbix ● Nagios ● Munin ● Monit Network Understanding of theoretical and practical foundations of the networks (Data link, Network, Transport, Application Layers). VPN ● OpenVPN ● PPTP Database (SQL) ● MySQL (+MariaDB, +Percona) ● PostgreSQL Database (NoSQL) ● ElasticSearch ● Riak ● MongoDB ● Cassandra ● Redis Virtualization & Containerization ● KVM ● XEN ● OpenVZ ● LXC ● Docker ● Vagrant Cluster ● DRBD ○ master-slave ○ master-master (+ocfs2) ● Heartbeat ● Pacemaker Development ● actively use: ○ shell (bash, sh) ○ Python ● Frameworks ○ Django ○ Flask ○ Twisted ○ Tornado Cloud Solutions: ● AWS (EC2, S3, CloudFront, Route53) ● DigitalOcean ● RackSpace

    $33.33 /hr
    40 hours
    5.00
  6. Josephine Loker

    Josephine Loker

    Expert keyboard skills.

    Portugal - Last active: 21 hours ago - Tests: 1

    I am British working as a full-time freelancer specializing in transcription, data entry and office administration. I have over 30 years' experience in senior administration, customer service, secretarial and sales management in the UK in B2B, Banking and Publishing. Highly professional and reliable. Fast and accurate keyboard skills along with excellent English grammar. I attended Peterborough Secretarial College initially and have gained many more skills and accreditations since that time: Time Management, B2B Sales, Effective communication, Data Management, Email etiquette, Managing teams remotely, among others. Flexible, adaptive and just loving what I do at the moment. I ensure my clients are 100% satisfied with the end product and will do anything to make that happen.

    $10.00 /hr
    2,055 hours
    4.97
  7. Faisal Iqbal

    Faisal Iqbal

    Smart Web Worker

    Pakistan - Last active: 6 days ago - Portfolio: 4

    I'm here on Elance for full-time. I have 10 years SOLID experience in PHP, MYSQL, AJAX, jQuery, Wordpress, Bootstrap, API integration, HTML5, phpBB, osCommerce, Joomla, and other technologies. Right now i am willing to join as part time or contract based jobs and that can be further to full time and permanent based on company offer and understandings.

    $15.00 /hr
    1,549 hours
    4.91
  8. Andrii Ivanskiy

    Andrii Ivanskiy

    Administrator,DevOps,IT specialist

    Ukraine - Last active: 21 hours ago - Tests: 1 - Portfolio: 8

    I am IT specialist with over than 6 years of experience on Windows and OpenSource (Linux) based technologies. I have strong skills on networking, operations systems, network services and applications: - Operating Systems - Windows (Windows NT, 2000, 2003, 2008, 2008R2, 2012), Linux (CentOS, Fedora, Red Hat), FreeBSD - Networks - TCP/IP, routing, VPN, NAT, iptables - Infrastructure and services - Active Directory, DNS, DHCP, Exchange, Lync - Cloud computing - Microsoft Azure, AWS - Applications - SharePoint, SharePoint Online, Office 365 - Databases - MS SQL , MySQL - Virtualization - MS Hyper-V, Vmware, Virtual Box - Scripting - PowerShell, Bash - Internet Technologies and Programming - IIS, Apache, Nginx, HTML, CSS, PHP, C#, ASP.NET, MVC

    $22.22 /hr
    47 hours
    4.85
  9. Sam Nickson

    Sam Nickson

    Usability Consultant and Conversion Specialist

    United Kingdom - Last active: 1 day ago - Tests: 3 - Portfolio: 2

    WHO AM I? I am Samuel and I work for a digital marketing company that specialise in conversion rate optimisation and I am the usability expert. I review websites (often for SME's) and produce professional audits (video screen recording, commentary, written report) that have helped hundreds of website owners boost sales. You can find out more about me here: http://www.usabilityaudits.co.uk/about-me *** 55% of visitors spend less than 1 minute on a website! *** - Poor navigation, too much text, poor typography and poor page layout are just some of the many causes of friction I will review YOUR website rigorously and give YOU a list of recommendations that will be straightforward, quick to implement and will increase YOUR online sales If your site converts 5 in 100 visitors and changes I recommend make that 6 in 100 then your online sales increase by 20% Conversion rate improvements of 50-100% are not unheard of, 20% is common. MY METHODOLOGY I have a whole range of tools I can implement to test a website, here are a few: The 5 second test involves looking at your site with 'fresh eyes' looking away and recalling what I remember. Was it clear what the service on offer was? What were my first impressions? This is key to bounce rates. Product and checkout page analysis is essential for conversion rates. And dummy purchases can highlight other usability issues. - Plan the Audit / Review of your website (tailored to your website / needs) - Produce an edited and professional usability video (short sample - http://bit.ly/1ywAqTU) - Produce a written report (with screenshots and callouts) - Email and upload it to your email * You will be left with constructive objective feedback plus suggestions and examples of where you can improve your website* I WILL make sure YOU are 100% happy. https://twitter.com/UsabilityAudit https://www.youtube.com/watch?v=mCvkekFzy5g 07535334094 usabilityaudit@gmail.com

    $55.00 /hr
    27 hours
    5.00
  10. Sudan D.

    Sudan D.

    Network Engineer : Cisco : Juniper : Fortinet :

    Nepal - Last active: 21 hours ago - Tests: 6 - Portfolio: 4

    Despite the fact I am in young age I have years of experience with computers, networking and system. I am very tenacious and autodiact technical person for Cisco and Juniper Enterprise Network. I love to dig deep into specific technical challenges. 6+ years experience in Enterprise Netwrok. # Hands On Experience # Cisco: ASR 9K, ASR 1K, Nexus 7K, Nexus 5K, 4507R+E, 3900 Series, 2900 Series, 3850 Switches, 3650 Switches, 2960X Switches, ASA 5525X, ASA 5515X, ASA 5512X Juniper: MX40, MX5, SRX 550, SRX 240, SRX 220, SRX 210, SRX 100, EX 4300, EX 4200, EX 3300, EX 2200, MAG 4610, etc. More from Other Vendors # Some Highlights # @ Defining architecture and design for Enterprise customers. @ Lead engineer on some of the big enterprise networking projects. @ Training Internal Employee and customer. Main focus on Cisco and Juniper internetworks at Campus and Enterprise customers http://np.linkedin.com/in/sudandhakal

    $30.00 /hr
    131 hours
    5.00