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Comet Job Cost Overview

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

Upwork Comet Jobs Completed Quarterly

On average, 4 Comet projects are completed every quarter on Upwork.

4

Time to Complete Upwork Comet Jobs

Time needed to complete a Comet project on Upwork.

Average Comet Freelancer Feedback Score

Comet Upwork freelancers typically receive a client rating of 4.22.

4.22
Last updated: July 1, 2015
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  1. Oleksii A.

    JavaSE/JavaEE Developer, PhD in Information Security

    Ukraine - Last active: 09/19/2011 - Tests: 5

    Enterprise and Web Application Developer. PhD in Information Security. Especially interested in building complex (transactional, concurrent, secured, scalable etc) Java/J2EE based systems. Strive for creating systems based on sound technical designs by applying OO design concepts and software patterns.

    $38.89 /hr
    1,277 hours
    0.00
  2. Constantine Stanishevsky

    Constantine Stanishevsky

    Senior Web Developer (PHP, Yii, MySql, Javascript, web-scrapping)

    Czech Republic - Last active: 12/13/2014 - Tests: 6 - Portfolio: 3

    I like complex challenging projects which require initiative and nonstandard innovative solutions. More information can be found at http://stanishevsky.com/ Developed one of the largest online stores and a social network, devoted to beading. Created Ļiñgvŭs http://lingvus.com/ — the online marketplace for freelance translators. As a freelancer, I have developed dozens of websites in various fields.

    $29.99 /hr
    355 hours
    4.81
  3. Gabriel Dodan

    Gabriel Dodan

    Experienced Web Apps Engineer:Node.JS/PHP/JavaScript/Highstocks

    Romania - Last active: 4 months ago - Tests: 7 - Portfolio: 9

    Web Applications Engineer ( both back-end and front-end ) with 10+ years of experience. Extensive experience with: Node.JS, JavaScript, PHP, Adobe Flex, HTML, CSS, MySql, PostgreSQL, Redis, Express.js, Sails.js, Passport.js, jQuery, Require.js, Bootstrap, Highcharts, Highstocks, AJAX, Comet, socket.io, PayPal, WordPress, CodeIgniter, GIT, Photoshop As Web Applications Engineer I have built a wide range of web applications: financial web applications, real-time web application, collaborative applications, PHP Framework, tickets web application, e-commerce websites, simple websites, WordPress websites, WordPress plug-ins, video streaming My objective is to provide high quality Web Development services at affordable price. Almost always I create good business relationships with the people I work with. Personal characteristics: confident, proactive, creative, analytic thinking, dexterity to learn new technologies, I like to work on challenging and complex projects.

    $34.00 /hr
    186 hours
    4.74
  4. Sergei H.

    Sergei H. Agency Contractor

    Senior PHP / JS developer

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

    Senior PHP developer and architect with 10+ years of PHP development. I have a good experience of social networking development (from scratch). I know, how to build highload sites, how to build single-sign on, how to integrate with other social networks and develop API for mobile devices. CEO of thePHPGuys.com, available as individual developer and as PM / TeamLeader. Perfom development, analyzing, refactoring and management. - Deep OOP / MVC / MVP / HMVC understanding - PHP 5.3.x / 5.6 usage (namespaces, traits etc.) - Kohana framework, ORM(s) (like Kohana ORM / Jelly ORM) - Symfony 2 framework / Doctrine ORM / Doctrine ODM - CodeIgniter framework - MySQL / PostgreSQL / MS SQL / MariaDB knowledge, RDBMS arch. planning and support - Highload projects ( 200 000 + hosts per day / 2m pageviews) - Memcached / APC / WinCache - phpExcel / wkHtmlToPDF - Node-FFI / php-FFI experience - SOAP / RPC, AJAX / JSON / XML / YAML - PHP performance optimization for Linux / Windows - Deep JavaScript knowledge ( jQuery, Ext.JS, Prototype) - Node.JS knowledge, highload API development by using Node.JS - Deep ExtJS 3.x / 5.x knowledge, Sencha Touch 1.x / 2.x (minor), Phone GAP - MongoDB via PHP / Node.JS drivers - Experience with Graph API (Facebook), PayPal API, vKontakte API, Mail.RU API, Linked IN API, contributed to HybridAuth OpenSource project and other third-party APIs. - Mandrill API experience; - html tidy / html Purifier / KSES ( crawlers and parsers creation experience ); - Virtual Buckets sharding strategy for social networking; Portfolio includes: - Content Management Framework development; - Social Network development ( friends, mututal friends, personal newsfeeds); - Dating service; - Multiuser online chat system (long pooling / websockets / node.js) - Online browser-based game ( server-side, ajax) + some of client side (canvas). - Highload newsfeed site (inluding editorial back-office); - Dozen corporate websites and personal homepages; - Websockets, JSONp

    Associated with: ThePHPGuys, InVooDoo

    $33.33 /hr
    1,015 hours
    5.00
  5. Maksim Senichev

    Maksim Senichev

    Senior PHP/Javascript Developer

    Russia - Last active: 6 days ago - Tests: 3

    I am a well-experienced web developer, prefer to work with Symfony2 PHP projects and JavaScript projects. Also I work with Kohana and Yii frameworks, know BDD, TDD concepts, have an experience in development of browser plugins, advert banners, keywords highlight, write an optimized and fast code.

    $44.44 /hr
    2,329 hours
    4.35
  6. Alexey Baev

    Alexey Baev Agency Contractor

    Senior Python/Django/FrontEnd web developer

    Russia - Last active: 1 day ago - Tests: 4 - Portfolio: 9

    I want to be helpful on your high-load web projects, have solid server administration, architectural, performance optimization skills. KEYWORDS: AngularJs, BackBone, Leadership skills, Architect skills, HTML5, CSS3, PHP, Zend Framework, Drupal, Joomla, Python, Django, Apache, Nginx, Linux, Amazon Web Services, jQuery, UI development, SCSS, Twig, BEM (Yandex), Comet

    Associated with: Rendered Source Agency, truepeppers

    $27.78 /hr
    1,039 hours
    4.67
  7. Igor S.

    Igor S. Agency Contractor

    C#/JS Web Developer

    Russia - Last active: 1 day ago - Tests: 5 - Portfolio: 1

    Web/desktop/mobile full-stack application developer. PhD in computer science. Microsoft certified developer. 13 years in software development. I'm fluent in written and spoken English, and got second degree as an interpreter. I used to be a PM for two years, and daily online meetings with English-speaking customers were a part of that job. I like complex tasks and can quickly dig into any technology or area of expertise.

    Associated with: Anthill

    $33.33 /hr
    3,364 hours
    4.98
  8. Maria T.

    Maria T. Agency Contractor

    I'm the manager from ExtPoint team. We are skilled in complex webdev

    Russia - Last active: 3 months ago - Tests: 3 - Portfolio: 10

    We in ExtPoint have experience in development and maintenance of complex Web-projects, including Desktop and Mobile clients for them. Our two last biggest projects, HelpOnClick and CashGo.ru, are realtime (Comet-AJAX) with rich browser logic (one ExtJS-based, another jQuery-based). Also we have highload experience in them: profiling, MySQL DBA, message queues, distributing load. Fine UX development is our love. An approach to protect investments in based on Agile technics and continious feedback. We have mature business-processes in Version Control and Issue Tracking. Basically we offer the supervised work of our Jr. Developers at $23/hour, while work with high level of expertise are approximately at $59/hr. Big volumes and monthly payment interval assume discounts.

    Groups: PHPFox, SocialEngine

    Associated with: ExtPoint

    $30.00 /hr
    59 hours
    5.00
  9. Maksym B.

    Maksym B. Agency Contractor

    WEB-developer

    Ukraine - Last active: 14 hours ago - Tests: 5 - Portfolio: 6

    ● Team leader with extensive experience in Front-end development. ● Expert in GUI optimization techniques, cross-browser compatibility. ● Advanced experience in DOM, JavaScript, (X)HTML, CSS. For Desktop and Mobile browsers. ● Expert in JavaScript frameworks (AngularJS, BackboneJS), CSS frameworks(Bootstrap, SASS, YAML), JavaScript toolkits (jQuery, Underscore) ● Experienced with HTML5, CSS3 technologies. ● Experienced as a Front-end Architect. ● Impressive experience with building Off-line Web Applications. ● Experienced with a lot of services such as Google, Yahoo, Yandex, ArcWeb, MapQuest, StreetMap, etc. ● Expirienced with server-side JavaScript (NodeJS). ● Advanced TDD experience on Front-End using QUnit, Jasmine, Karma. ● Intermediate TDD experience on Back-End using Cucumber, RSpec, PHPUnit. ● Expirienced with server-side development (PHP, Ruby, Delphi). ● Able to control development flow and manage group of engineers. ● Excellent analytical, problem solving, interpersonal, communication skills.

    Associated with: SITIO Group

    $33.33 /hr
    1 hours
    5.00