Top Upwork Freelancers

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  1. Daniel B.

    Daniel B.

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

    Canada - Last active: 1 day 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
    379 hours
    0.00
  2. 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
  3. Andrew A.

    Andrew A.

    Senior Software Engineer

    Russia - Last active: 1 day ago - Tests: 1

    10+ years of experience in software development. Strong skills in web development, database development, object oriented programming and design. I participated in several software startups, including my own. My key technology skills are: Java SE, Java EE, Spring, Hibernate, JavaScript. Also, from time to time I've been working with: Python, Perl, Bash, .NET, ActionScript, PHP, C/C++. (And it's not a problem for me to learn any new thing). I'm able to work on software projects from scratch until the final delivery. I can do budget estimations of the entire software project. I can manage the team. I can understand and implement the most difficult parts of the software systems.

    $24.46 /hr
    1,413 hours
    0.00
  4. Atul Dhanawat

    Atul Dhanawat

    Expert in PHP,Wordpress,Codeigniter,JavaScript and Drupal

    India - Last active: 11 days ago - Tests: 2 - Portfolio: 4

    Hello I pursue the following objective: Find long term relationships with the partners to develop complex and specific projects using PHP5.0(modern PHP frameworks) or ASP.NET C# technologies.I cooperate with other developers to meet the deadlines and projects demands, executing the role of project manager and developer at the same time. My passionate work and good experience would help you to get quick and right solutions. I have solid skills in PHP, SQL, jQuery, AJAX, HTML, Smarty, CSS,and good proficiency javascript,codeigniter,wordpress. I'm also have strong background in Web Servers and Linux OS. Thanks

    $11.11 /hr
    602 hours
    0.00
  5. Muhammad aqeel A.

    Muhammad aqeel A.

    Senior Software Engineer

    United Arab Emirates - Last active: 22 days ago - Tests: 3 - Portfolio: 7

    I am Senior Software Engineer with more than 4 years of experience in developing business applications (Project Management / ASP.Net / C#.Net / VB.Net / JQuery/JSON / Crystal Reports / Entity Framework / Ajax / Web Services / Biometrics / MS SQL Server 2005/2008/2012 / ORACLE 10G & 11G / Biometrics / Honeywell / BioStar Suprema / TBS / Access Control System / Time and Attendance System ). I believe that several of my strengths will be quite transferable, such as attention to detail and the ability to work within fast pace environment. What my resume does not reveal is my professional demeanor and appearance. In me, you will discover a reliable, detail-oriented and extremely hard-working associate.My core competency lies in complete end-end management of a new application development project, and I am seeking opportunities to build applications from the ground up for you or your business.

    $16.67 /hr
    44 hours
    0.00
  6. Prasanna Kumara Welegedara

    Prasanna Kumara Welegedara

    Mr

    Sri Lanka - Last active: 1 month ago - Tests: 1

    I am worked as Senior Programmer/Project Leader and My Primary Responsibilities at OpenArc is to Analyses, Design and Develop, the Application Software Assigned. In addition, maintain the records pertaining to project management tasks according to company’s quality management systems (QMS) also responsible for meeting with project deadlines and customer loyalty. I have good knowledge of using JSE and JEE , HMTL, DHTML, JAVA, JSP JSF, Servlet, Struts, JPA, Hibernate, Spring, PHP, CakePHP , Joomla, MySQL .

    $11.11 /hr
    338 hours
    0.00
  7. Willy J.

    Willy J.

    Senior Software Engineer

    Indonesia - Last active: 1 month ago

    Hi, my name is Willy Juisan, nice to meet you! I am a software engineer for many years, and I love to build a high quality application that meets my client needs. I'll try to do my best to help you implement all your ideas and make your projects successful! Some key technologies which I already used : ASP.NET, JBoss, Tomcat, J2EE, Spring, ORM, Hibernate, JPA, SQL Server, MySQL, JUnit, XMPP, Openfire. The development tools I use often are : Eclipse IDEA, Maven, TFS and some others. Technologies that I was working with : * Languages : Java, C#, C, C++, JavaScript, XML, VB * Libraries : Optaplanner * Frameworks : .NET, Spring MVC, Spring Data, Spring Integration, Hibernate * Build Tools : Maven * UI : GWT, Sencha GXT, HTML 5, CSS 3 * Operating Systems : Windows, Unix * Database : MySQL, SQL Server * Web App servers : Apache Tomcat, JBoss * Issue trackers : Atlassian Jira * Continuos integration : Jenkins Education : I do have background knowledge which I achieved in my university in these following areas : Programming : C, C++, C# and Java languages Web : ASP.NET Working Experience I do have some experience from my previous work in these following areas : Programming : VB.NET, PHP and Java languages Web : ASP.NET, GWT, Sencha GXT, Spring and Wordpress

    $8.89 /hr
    66 hours
    0.00
  8. Andriy K.

    Andriy K.

    Web development / WordPress development / Front-end development

    Ukraine - Last active: 1 day ago - Portfolio: 4

    I am Web developer, WordPress developer, front-end mobile developer with 5+ yrs of experience. Responsive web sites for any display resolution and any difficulty. My main goal is qualitatively performed work and the happy client. All my works is always have a highest quality. Offer: - multi-screen - cross browsers capability - pixel perfect - W3C validation - rightly structured and SEO friendly markup - highest quality, clean and full commented code - Wordpress guru - perfect knowledge Photoshop, Illustrator Why me? - quick - responsive and reliable - 5+ years experience with professional teams and big projects - short response time (skype & email) - many happy employers I`m ready to work with you!

    $17.78 /hr
    21 hours
    0.00
  9. Dominador Rey

    Dominador Rey

    Desktop Support Engineer

    Philippines - Last active: 1 month ago - Tests: 6 - Portfolio: 3

    Responsibilities are as follow: o Manage user accounts via Active Directory o Install client tools and applications used by agents in taking calls o Deploy, assemble, and configure workstations o Troubleshoot Printer and workstation network connectivity o Provide Level1(L1) support to end-user with regards to hardware or software issue o Regularly monitor internal and external network connectivity via PingPlotter and SolarWinds o Monitor CPU/Bandwidth Utilization of network devices via SolarWinds o Monitor Bandwidth of ISPs via Multi Router Traffic Grapher (MRTG) o Escalate external network issue to client / Internet Service Provider (ISP) o Document any changes in LAN topology o Manages IP Address availability via SolarWinds o Keep backups and update network switches configuration o Deploy, configure, and troubleshoot Avaya L2 and L3 network switches, WatchGuard Firewall and Avaya IP Hardphones o In-charge of VLAN access, Firewall Policy, IP Phone Extentions via Avaya IP Office Manager

    $5.56 /hr
    421 hours
    0.00
  10. Martín Acosta

    Martín Acosta

    Web Senior Developer with new technologies

    Argentina - Last active: 22 days ago - Tests: 1 - Portfolio: 2

    I'm an ambitious JavaScript developer with a strong technical background who possesses self-discipline, the ability to work with the minimum of supervision and to play a key role throughout the software development. As JavaScript Senior Developer my experience consist in five years working with different technologies and methodologies in the JS ecosystem. In my first years i worked with AngularJS and jQuery to create single-page applications using always a PHP backend. But with the pass of the years I realized that create great and powerfull applications don't need to have a big framework inside (e.g AngularJS). So in my last years i had the oportunity to work in proyects directed by me and where i could work with minimalistic libraries and with a strong philosophy based on modular/components web applications. So in the present i'm working with beautifull and powerfull technologies such as: - VanillaJS - MithrilJS - Browserify with Babel - PostCSS - Gulp - VelocityJS - Meteor - Node.js and io.js - HapiJS - MongoDB - Cordova - Crosswalk Project My objective is create applications where the client/user has the best experience. Where the client UI and the server side has a similar and shared environment to work, a unix like philosophy based on modular/components applications. My weaknesses as you maybe know at this moment is my poor english, but i'm trying to improve that part of my education.

    $10.00 /hr
    18 hours
    2.95