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Asynchronous I/O Job Cost Overview

Typical total cost of Upwork Asynchronous I/O projects based on completed and fixed-price jobs.

Upwork Asynchronous I/O Jobs Completed Quarterly

On average, 1 Asynchronous I/O projects are completed every quarter on Upwork.

1

Time to Complete Upwork Asynchronous I/O Jobs

Time needed to complete a Asynchronous I/O project on Upwork.

Average Asynchronous I/O Freelancer Feedback Score

Asynchronous I/O Upwork freelancers typically receive a client rating of 4.96.

4.96
Last updated: August 1, 2015
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  1. Maxim Vorobey

    Maxim Vorobey

    Senior Software Engineer/Architect

    Russia - Last active: 1 day ago - Tests: 3

    I am a web application developer specializing in PHP/JS with 15 years of experience. strong OOP knowledge, MVC etc Expert in LNMP, LAMP and MEAN stacks with high traffic. Intermediate in C, C++, Objective-C, Swift, OpenGL, GLSL, big data analysis. nginx, node.js, apache2, lighthttpd php (symfony, symfony2, zend2, doctrine2, bitrix) js (native, jquery, coffescript, angular.js, backbone.js, express.js). xhr, websockets. os: centos, ubuntu/debian, osx. db: mysql, postgre, mongo. clustering, replications. in-mem: rabbitmq, memcached, redis, sphinx. api: paypal, facebook, twitter, livejournal, vkontakte, jira, mailchimp, mandrill, zendesk, amazon aws. data scraping, data parsing saas, soap, rpc, rest, json phpunit, phpspec, tdd git, mercurial, svn agile/scrum: jira, redmine https://github.com/n3b

    $69.00 /hr
    2,870 hours
    5.00
  2. Aliaksandr Nasukovich

    Aliaksandr Nasukovich

    Python Programmer

    Belarus - Last active: 10 days ago - Tests: 2

    I'm experienced python web developer with more than 2 years of practice. Mostly I'm interested in web parsing and backend development. Good in asynchronous python frameworks twisted, tornado and asyncio. For sites development prefer django framework. I have strong knowledge of SQL and regular expressions. I have experience in the following areas: 1. python 2/3, django, flask, tornado, twisted, grab, lxml, fabric; 2. mysql, postgresql, sqlite; 3. php, javascript & jquery, css, html; 4. xml, xslt, xpath, regular expressions; 5. linux, windows; 6. git, mercurial.

    $16.67 /hr
    0 hours
    5.00
  3. Ravinder Kumar

    Ravinder Kumar Agency Contractor

    Expert in iPhone, iPAD, (iOS8), Android with - PHP, My SQL, C-Panel

    India - Last active: 5 days ago - Tests: 3 - Portfolio: 4

    ★★★★★ Testing device List with latest iOS version ★★★★★ 1)iPhone6+:- iOS: 8.1.3 2)iPhone6:- iOS 8.1.3 3)iPhone5 :- iOS 8.1.3 4) iPhone4:- iOS 7.1.2 5)iPad Air:- iOS 8.1.3 ★★★★★ 100% Client Satisfaction. ★★★★★ Hi, I am Ravinder Kumar an IOS & Android developer. From more than 4 years ,I am a professional Developer who has extensive experience in iPhone,iPad development.My focus is on doing high quality work and client satisfaction. I am finding an individual approach to each new job and do it professionally, quickly, qualitatively, paying attention to even the smallest details.

    Associated with: Possibility Solutions

    $15.00 /hr
    802 hours
    4.84
  4. Darren Caldwell

    Darren Caldwell

    Web Developer

    Canada - Last active: 3 days ago - Tests: 3

    I can hand code sites which helps when complicated logic has to tumble from an event. I am fluent with javascript (jQuery/jQueryUI), php (email/database/file), HTML5, CSS3. I recently learned nodeJs which is fairly similar except that it provides increased function and security. My website is darrencaldwellwebdesign.ca

    $16.67 /hr
    0 hours
    4.85
  5. MIchał Mazurek

    MIchał Mazurek

    Senior Developer

    Poland - Last active: 6 months ago

    I'm a programmer with more than 8 years of experience in high performance programming, web design and security. My swiss knife contains: Django, Web.py, AngularJS, JQuery, Twitter-Bootstrap, python-asyncio, Node.js, Gulp, Bower, MongoDB, MySQL You can find in my toolbox also WordPress, PlayFramework and IOS SDK I'm fluent with: Python, *SQL, JavaScript (CoffeeScript), HTML, CSS, LESS, PHP I also know: Java, ObjectiveC, C, C++ I can admin and deploy on: Linux, FreeBSD My speciality is to design and create applications to run faster, smarter and user friendlier. Highlights from my experience: - Wallix, integrator, anti-spam system deployment around the world for TOTAL - Wallix, developing software for server management: binary packages manager for Gentoo and automatic deployment of updates across many machines that saved a lot of admins time - Wallix Admin Bastion, Lead Developer for v1, I've made core decisions for UI, wrote it and I've made plugins for recording ssh sessions and user management. V2 of this app wins security awards now - LutinRouge - toy shop in France, made subsystems for safe data replication, integrated warehouse communication with PHP application. - CLAAS - I've made sales faster for CLAAS salesforce by making a desktop app in Python+QT that was proposing which agricultural machines should be proposed by assessing needs of buyer - Flivistic.fr/Flivistic.co.uk - Team leader / lead developer, managing Exalead CloudView, writing document processors (easier data extraction from html than native extractors) for search engine's analysers. Saved money on locations extractor by building location database for France, UK out of OpenStreet Maps. - Kuchary Diamond Way Buddhist Centre - I've designed and developed registration system for events, managing members and teams for meditation courses (voluntary service),

    $60.00 /hr
    0 hours
    0.00
  6. Birendra Pratap Singh

    Birendra Pratap Singh Agency Contractor

    iOS Developer

    India - Last active: 12/25/2013 - Tests: 2 - Portfolio: 1

    smartData Enterprises (I) Affiliate Proving quality innovative solutions to my clients. 3 years of extensive experience in developing Native apps for iOS apps.With great insight into User Demographic requirements and changing market needs, I am confident to take up challenges to develop the best quality apps.

    Associated with: SmartData Inc Agency

    $15.00 /hr
    450 hours
    0.00
  7. Michal S.

    Michal S.

    Solutions Designer and QA - Zend Certified (C, Linux, PHP, JS, HTML5)

    Poland - Last active: 1 day ago - Tests: 4 - Portfolio: 7

    Having me onboard, you can focus on business aspect of your IDEA and rest assured that your IT solutions will always meet business requirements and scale seemlessly. I develop and deploy high performance web applications, based on scalable, best design patterns. Like being involved in complex and challenging projects. Often providing out-of-the-box solutions to problems, and managing projects. Decent experience with: Facebooks Hyper PHP (HHVM) Libevent custom C / Linux based solutions PHP extensions development Designing scalability solutions Troubleshooting Programming languages: C, PHP, Python, Java, ActionScript 2/3 Methods: GA, genetic alghoritms, ANN, artificial neural networks, OOP, object oriented programming, AOP, aspect oriented programming, IoC, inversion of control, DI, dependency injection, SD, stackable decorators, DAO, data access objects, regression analysis, FFT, fast Fourier transform Frontend skills: Flash, Java applets, Object Oriented JavaScript, AJAX, jQuery, Twitter Bootstrap, CSS, HTML Tools and Technologies: C, C99, pthreads, libevent, Java, netty.io, NIO, PHP, Hip Hop Virtual Machine (Facebook's HPHP) NGINX, HAProxy, PHP-FPM, MySQL, PostgreSQL, SVN, Memcached, Beanstalk, Gearman, Redis, Percona, Zend Framework, XML, SOAP, Linux, daemons, sockets, low-level standard or custom networking protocols, P2P, REST, JSON, design patterns, MVC, SVN, Bash, PHPUnit, Xdebug, Unit testing, AWS EC2, Zend Framework 2, ZF, ZF2 Looking for an extremely performant web application written in C / libevent ? Need help writing non-standard PHP extension ? Need a hand with scalability issues ? Feels like getting in touch ? Shoot me an email! Zend Certified Engineer

    Groups: Application Developers Alliance, Zend Certified Engineers

    $27.78 /hr
    2,535 hours
    4.90
  8. Mallick S.

    Mallick S. Agency Contractor

    Taxi Apps, Android, iOS, Push Notification, SQLite

    India - Last active: 20 days ago - Tests: 1 - Portfolio: 6

    smartData Enterprises (I) Affiliate Proving quality innovative solutions to my clients. 6 years of extensive experience in developing native apps for iOS and Android SDK in productivity, utility and health & fitness category. With great insight into User Demographic requirements and changing market needs, I am confident to take up challenges to develop the best quality apps. Currently working on the development of Android Native Apps from the last 10 months for both smartphones and tablets using latest SDK's 2.2/2.3.

    Associated with: SmartData Inc Agency

    $13.00 /hr
    723 hours
    5.00
  9. Pibi Bit

    Pibi Bit Agency Contractor

    Full stack javascript | NodeJS | Lua | Websocket | AngularJS

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

    We are seasoned italian full stack developers, with 10+ years of web-programming, systems-design systems-administration and systems-programming experience. Emphases in high-availability, high-throughput architectures and in work-flow optimization. * Node.js & REST API experts * Websocket and sockjs experts * MVP frontends experts. * We have delivered dozens of consulting engagements with clients ranging from startups to top italian enterprises.

    Associated with: pianobit.com

    $55.56 /hr
    0 hours
    0.00
  10. Phan Quoc Dung

    Phan Quoc Dung Agency Contractor

    Programmer / Developer

    Vietnam - Last active: 4 months ago - Tests: 1 - Portfolio: 27

    Over the last 10 years, I have developed more software and website of websites using VB, VB.Net, C#.Net, ASP.NET and Coldfusion. Besides that, SQL, MySQL and Access is my skill.Can be list some project i has finish:- Manager school software- Autobackup database (auto backup and download over FTP)- SMS service system (using SMS gateway, integrated with more service: auto reply over Y!M, look up lottery, school report, ...)- More website with coldfusion (using cfwebstore) with kaimagic team:- More website with ASP.NET at vietnam- MLM system manager softwareThe last project is AutoNews software. It can be auto get last news on some magazine, download and split to get each content (title, author, content, summary, thumb image, ....) and auto upload to another server (insert to another database and upload all related image to server over FTP account). This project has finished by myself. Also, i has done streaming project with WPF (streaming voice and webcam; Client - Server protocol).

    Associated with: Phan Quoc Dung

    $11.11 /hr
    11 hours
    5.00