Top Upwork Freelancers

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  1. Zoran Protic

    Zoran Protic

    Software Engineer & Architect

    Serbia - Last active: 3 days ago - Tests: 3 - Portfolio: 6

    Software Engineer with more than six years of experience in developing and designing web based applications. Have done lot of projects from bottom to top using C#, ASP.NET MVC, Node.js, Angular.js, jQuery, MongoDB, SQL Server. Skilled in Object-Oriented Design and with experience in Agile Methodologies like Scrum, Kanban and Extreme Programming. I also have excellent project management and leadership skills.

    $35.00 /hr
    109 hours
    0.00
  2. Jose Fabio Miranda

    Jose Fabio Miranda

    NetApp Tech Support

    Costa Rica - Last active: 1 month ago - Tests: 1

    Provide customers with assistance regarding Initial Configuration of NetApp Filers. Provide troubleshooting assistance for issues regarding Protocols: NFS, ISCSI, SMB, CIFS, FCP. Provide assistance with configuration of Storage Replication and SnapShot Restores on ESX, Linux, UNIX and Windows Hosts. Provide Troubleshooting and Configuration assistance for NetApp DATA ONTAP 7-Mode and Cluster Mode. Provide troubleshooting assistance determining any Hardware Failure located on SAS and Fiber Shelves. Current Role: Currently Part of NetApp Group1/ P1 - Handle Major Accounts and Business Sensitive Accounts. - Receive P1 Issues to Stabilize Storage. - Assist with Data Collection of Major Incidents that would have any impact on Production Environment.

    $10.00 /hr
    10 hours
    0.00
  3. Panayotis Tsiamis

    Panayotis Tsiamis

    Senior Systems and Software Engineer

    Greece - Last active: 1 day ago - Tests: 7 - Portfolio: 14

    Systems and Services Engineer, with 12+ years of working experience. Interested in researching, administrating, debugging, tuning and developing platforms running on UNIX like Operating Systems. Able to troubleshoot, identify and solve problems in software, network or kernel layer. Always willing to learn and experiment new technologies for creating high availliability platforms, that could described as "state of the art" or "cutting edge" technology. Specialties: • Unix Like Operating Systems Specialist (Solaris / Linux ). • TCP/IP Network technology • Very deep level of knowledge on Machines hardware and OS Kernels internals. • Troubleshoot/Tune/Debug; System Services, Operating Systems • Mail Services Expert, Qmail-Ldap Specialist. • Network: Cacti/MRTG, Nagios, Cisco Netflow • Databases: PostgreSQL / MySQL / Oracle / LDAP. • Programming: Perl, Ansi C, bash, awk, sed, php etc • Internet Services: mail, http, radius, ftp, ssh, irc etc.

    $30.00 /hr
    409 hours
    0.00
  4. Mary Anne Briones

    Mary Anne Briones

    job seeker

    Philippines - Last active: 8 hours ago - Tests: 2

    I am looking for a non-voice job. My last job is as a Quality Analyst for a US based company. I also had an experience working as a technical support representative and as a sales agent for voice. All are companies from US. Trust worthy and flexible when it comes to work. I always make sure that I accomplish my job well and does more than the assigned task.

    $3.70 /hr
    786 hours
    0.00
  5. GABRIEL MEDRANO

    GABRIEL MEDRANO

    VMware Systems Engineer

    United States - Last active: 2 days ago

    • Design and administration of VMware vSphere 4 & 5 Enterprise Plus hosting 1000+ Linux and Windows virtual machines on hosts across multiple sites • Design and configure VMware vSphere 5 components such as High Availability (HA), Distributed Resource Scheduler (DRS), vMotion, Distributed Virtual Switch (DVS), Host Profiles, Storage I/O Control (SIOC) and Network I/O Control (NIOC) • Design and administration of Lab Manager 4.x to support 400+ virtual machines • Understanding of SAN architecture and implementation as it relates to virtualization (NetApp, IBM XIV, EMC Clariion and VMAX) • Design and Administration of 25+ HP C7000 blade chassis, Virtual Connect Flex-10 configuration in support of Linux, Windows, and VMware blades • Citrix XenApp 5 & 6.5 (Windows 2003/2008) administration hosting 90+ applications utilizing Web Interface , Netscaler, and SQL datastore backend for internal and external customers • Design and Administration of Citrix XenDesktop 5.5 integrated with XenApp, Netscaler, and Access Gateway • Citrix farm consolidation and decommission • Create and manage Active Directory and Group Policy Objects to include DNS • All manners of Windows 2003 and 2008 Windows Server administration • Produce processes and procedures for system administration • Troubleshoot and resolve utilizing analytical skill set amongst a distributed and complex environment to include DNS, Firewall, Active Directory, SMTP, TCP/IP, and various network related issues • Excellent communications skills and rapport with fellow teammates. Ability to work as a team or independently

    $88.89 /hr
    116 hours
    0.00
  6. David Morales

    David Morales

    Telemarketing Expert/ Data Entry Specialist/ VA Assistant

    Nicaragua - Last active: 8 hours ago - Tests: 4

    I've been in the call center industry since 2004. My greatest asset is being bilingual which can be use as a double-edged sword. My previous job experience include Debt Consultant, inbound sales for Sprint, virtual assistant for U.S. Cellular, Outbound sales for Adwords, lead generator for Real Estate and outbound sales for Medical Life Alert just to name a few. I have my skills that I can use to help any company grow. Therefore, I am confident that I can offer a successful outcome both to the company and myself.

    $4.50 /hr
    92 hours
    0.00
  7. Jose maria G.

    Jose maria G.

    Sales and Research Professional

    Mexico - Last active: 4 days ago - Tests: 2 - Portfolio: 1

    I am a skilled bilingual consultant with relevant experience working on different fields. I have worked on research for the development of public policies through different projects and recently became member of an NGO. Nowadays I also represent a mobile app for marketing in Latin America and I also have experience managing groups through a 1 year working as a manager of a restaurant at Playa del Carmen, Quintana Roo, what have granted me with good service and public relation’s skills, skills that were reinforced on Profuturo GNP, a Retirement Fund Administration Company, where I used to work as a financial advisor. Beyond my work history, I am a committed person with strong communication skills seeking for a long time project, willing to learn and deliver only the best of me.

    $11.00 /hr
    135 hours
    0.00
  8. Zaruhi Ayvazyan

    Zaruhi Ayvazyan

    Quality Assurance specialist

    Armenia - Last active: 8 hours ago

    Languages: • Armenian: Native ; • Russian: Good; • English: Base PC Applications: • MS Office : Operating Systems: Linux ; Windows XP ; MS Windows Programming Languages: C++ (basic knowledge); HTML (basic knowledge); SQL(basic knowledge); Testing types: • Functional Testing • Load Testing (using JMeter tool) • Performance Testing • Regression Testing • Stress testing • Smoke testing • Compatibility Testing etc. Experience in working with the defect management tools (Visual Studio 2013, JIRA), Experience in the development of test cases/scenarios,

    $10.00 /hr
    1,429 hours
    0.00
  9. Daniel B.

    Daniel B.

    Full Stack Startup CTO: Coder | DevOps | QA | Cloud

    Canada - Last active: 8 hours ago - Tests: 1 - Portfolio: 1

    B"H I'm a software developer turned entrepreneur with an irrational desire to solve life's big problems using technology. I've been fascinated by programming and computers since age 14, and have a rich experience of over 15 years with a diverse set of software technologies. As CEO/CTO of a tech startup, I am the kind of generalist that is a jack of all trades and a master of all. On any given day of my week I need to be an excellent developer, tester, copy writer, marketing strategist, media expert, business and financial wizard, all while keeping the big picture and "vision" of the company in mind. Let me apply myself to your problem. Bring me onboard your team, and I will get the job done with spectacular results. I stand behind the quality of my work, the efficiency at which it is delivered, and the easy to maintain nature of my deliverables. SPECIALTIES Linux system administration (Ubuntu, Apache, MySQL, ElasticSearch, Sphinxsearch, RabbitMQ, ...) Clustered environments (CoreOS, Fleet, etcd) Containerization (Docker) Docker workflow design (containerizing environments for dev, staging & production for apps built in any language: PHP, Node, Ruby, Python, Haskell, ...) Cloud environments (AWS) Cloud migration (SoftLayer -> AWS, ...) Shell scripting (advanced Bash) Software development (PHP, C++, JavaScript, CSS3, HTML5) Configuration management (Puppet) Quality assurance (Selenium, PHPUnit) Continuous integration (Jenkins, Strider) Continuous deployment Monitoring and metrics (New Relic, Logstash, Kibana, Grafana, Graphite, Nagios, Seyren) User interface and user experience design (UI/UX) Product functional design and functional flow mapping Technical strategy Technical team building and leadership WORK ETHIC Development: Make it work, make it correct, then make it fast. Move quickly and break things, because better to get it into the user's hands than keep it in the engineer's head. Design: Less is more – remove decision points until it works like magic. Delight users at all costs with insane attention to detail. Quality management: Instrument all the things, since it's harder to improve what isn't being measured. If it's not being tested, it's already broken. Productivity: If it has to be done more than once, automate it; in a startup, don't automate for as long as you can. Refactoring should be opportunistic and shouldn't need management approval, because the broken windows syndrome in a codebase can bring a project to its knees. Technical strategy: Embrace valuable new things even if they're still half-cooked; the developers will usually work hard to smooth any bumps with surprising speed. Never throw out something that works just because something new came out; technology evangelism is an expensive sport. Management: Mentorship is key to developing the culture and organizational processes that will keep employees happy and increase their value to the company. Communicate the rules clearly, set the goalposts, then get out of the way and let the team shine. Exude passion or stay home. Leadership: Listen to and learn from everyone. When making decisions there is never enough information, and once there is it is usually too late. Grand plans tend to become obsolete before they are implemented, and old habits die hard; changes are most successful when they are small. KEYWORDS I've picked up many other skills over the years, so for easy reference and searchability on oDesk here is the keyword soup (in no particular order): ajax, json, api, html, css, smarty, zend framework, virtualbox, virtual machines, amazon cloud, dns, ftp, nagios, c++, eclipse, xdebug, software profiling, software optimization, software architecture, refactoring, software patterns, agile, test driven development, lean startup, minimal viable product (MVP), REST and RESTful design, software defined datacentre, continuous deployment, push to build, immutable infrastructure, redmine, project management, static code analysis, debugging, quality assurance, QA, testing, software verification, version control, subversion, power excel formulas, windows, macos, mac os x

    $111.11 /hr
    381 hours
    0.00
  10. Yuri K.

    Yuri K.

    Senior Angularjs / Nodejs

    Ukraine - Last active: 8 hours ago - Tests: 2 - Portfolio: 1

    I have developed a lot of websites and web projects with different and complex functionality as a lead programmer / systems engineer . - More than 10 years of experience in IT/programming sphere. - Strong attention to the project details. - Work strictly according to the schedule and your requirements. - Good communication skills and deep understanding the client's/end user's needs. - Flexibility and ability to provide you valuable advices for your application/web project. = Technologies = - Expert in PHP and modern JS (Angularjs & Node.js) - PHP Frameworks: Yii, CodeIgniter, Symfony, Slim and others - DBs: MySQL / MSSQL and others relational/non-relational DBs - Javascript: plain / jQuery - xHMTL / HTML5 - CSS2 / CSS3 I've also a good understanding and some experience in iPhone App Development.

    $30.00 /hr
    1,667 hours
    0.00