Top Upwork Freelancers

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  1. Andriy P.

    Andriy P.

    Senior Software Engineer (Ruby, Ruby on Rails, JavaScript, AngularJS)

    Ukraine - Last active: 15 hours ago - Tests: 9 - Portfolio: 4

    Have 10 years of commercial software development experience. 6 years, I work with Adobe Flex 3/4 and AIR technologies. Using MVC, design patterns, PureMVC / Caingorm / Mate / Robotlegs frameworks, strong knowledge of performance issues solving, memory leaks, working with large data sets in Flex, custom components development, spark skinning. Last 4 years, I work as senior Ruby on Rails engineer. Using Ruby, Ruby Rails, Javascript / Coffeescript, CSS / SCSS, HTML5 / HAML, Bootstrap, Backbone, AngularJS, Handlebars, jQuery, Ajax.

    $38.89 /hr
    2,388 hours
    4.91
  2. Gabor L.

    Gabor L.

    WordPress and Responsive Design Specialist, UX/UI Designer

    Czech Republic - Last active: 15 hours ago - Tests: 5 - Portfolio: 12

    Responsive web design, Mobile First approach, Parallax scrollers and sliders. WP Settings and WP Customizer APIs. Nice and effective layouts. Anything you can imagine with Wordpress, general front-end development and web design... I am a WordPress specialist, and also a web designer and developer, experienced in (X)HTML/HTML5, CSS2/CSS3, PHP/JavaScript/MySQL, Adobe Creative Suite CS6 and various other web development related applications and softwares. I am passionate about the work I do and enjoy creating innovative user interfaces, back-end features and functionalities. Over the last 10 years, I have developed a wide range of websites using (X)HTML, CSS, PHP, JavaScript and various JS libraries, and MySQL - including websites for startup companies and small businesses. My core competency lies in complete management of a new website development project from the wireframe phase to the final tests and site launch, and I am seeking opportunities to build websites from the ground up for you or your business. I am also a follower of web-standards, usability and cross-browser compatibility guidelines.

    $55.56 /hr
    4,579 hours
    4.97
  3. Aldrin L.

    Aldrin L.

    Architect, Backend Engineer (Scala, Java, Hadoop)

    Brazil - Last active: 7 days ago - Tests: 12 - Portfolio: 1

    Over the past 15 years I've worked with projects ranging from Startups to Fortune 100s. From C++ to Scala, past assignments involved: - Protocol Design in C++/Delphi - Java API Publishing - Maven Plugin Development - Distributed Systems using RESTful backends - Scala / Akka Design - Jenkins Plugins Writing On a daily basis, I spend between Systems Architecture, Build Planning, for Hadoop and Restful Backends, specially under Amazon Web Services. Oh, I'm also a Cloudera Certified Administrator and Developer. Favorite platforms include Scala, Python and General Java. See my full profile for more descriptions and feel free to browse my github and bitbucket profiles at the addresses below: http://github.com/ingenieux http://bitbucket.org/aldrinleal Favourite customers involve pragmatic teams, with contant online presence, and direct involvement with the end customer, and a problem involving legacy and the next generation Feel free to discuss our next project - I'm always looking for the next challenge!

    Groups: LoginRadius, Microsoft Certified Professionals

    $55.56 /hr
    3,102 hours
    4.82
  4. Agus R.

    Agus R.

    Professional Graphic Designer with Tons of Creative Ideas

    Indonesia - Last active: 1 day ago - Tests: 5 - Portfolio: 28

    Want to find an experienced graphic designer that knows how to create a professional graphic that sells? Try me...! :) Over 9 years, I've provided satisfying graphic design service for my clients from various industries; from helping an e-commerce site that sells electronic to refresh their websites, product packages, marketing brochures, books and catalogs, up to providing branding solution for corporate needs. I have a good eye in analyzing and designing usability. I don't just make a good graphic. But I put a strong consideration on how the information will be presented. Is it easy enough to read? Is it give emphasize enough on your programs/products? In short: I made a professional graphics that work (sells).

    $45.00 /hr
    7,400 hours
    4.91
  5. Bogdan B.

    Bogdan B.

    Linux System Administrator / DevOps

    United States - Last active: 15 hours ago - Tests: 2 - Portfolio: 4

    - Linux maintenance/troubleshooting (RHEL, Centos, Debian), - Cloud hosting (Amazon EC2, AWS, S3, Digital Ocean), - Networking (dhcp, DNS:powerdns/bind/named, vpn: openvpn/pptp, firewalls: iptables/ipfw, qos, proxies), - LAMP/LNMP Stack - Mail servers (exim, postfix , antispam/ antivirus: clamav/spamassassin/amavis, courier, dovecot), - Bulk marketing (DKIM, SPF,DMARK,ADSP, high speed/inboxing, Interspire, PowerMTA), - Automation (puppet, shell scripting), - Automation Deployment (Capistrano) - Monitoring (nagios,Icinga, zabbix,Cacti,Graphite), - Magento System Performance Optimization - Wordpress Performance Optimization - Mysql Perfomance Optimization, Replication - Full Disk Encryption / Remote Unlock /PXE unlock (Luks/DiskCryptor) - Load Balancer (haproxy)

    $38.89 /hr
    258 hours
    5.00
  6. Anton T.

    Anton T.

    MODx Developer / PHP / MySQL / JS / Linux

    Russia - Last active: 11 days ago - Tests: 9 - Portfolio: 22

    MODx Revo/Evo developer. Over the last 9 years of working in web developing industry. I have experienced as team working (including team leader position) as well as independent freelancer. Now scope of my professional interests range from light-weight web sites to highload portals and startups. In recent years I'm developing sites mostly based on MODx CMS/CMF, but i also worked with other frameworks: Zend Framework, osCommerce, UMI.CMS, Bitrix, WordPress, Joomla and about 3-5 self-made nameless CMS. Also I have strong expirience in integration of 3rd party applications, payment systems API (Card gateways, PayPal, SMS gateways, WebMoney, Yandex.Money, RBK.Money, Money[at]Mail.ru, Qiwi), websites optimization (according to GTmetrix and Google Page Speed Test). In addition, I possess high-quality 2 years expertise in software and web testing. At your service!

    $33.33 /hr
    1,253 hours
    4.98
  7. Chowdhury Foysal Ahamed

    Chowdhury Foysal Ahamed

    devops and backend engineer with frontend experience

    Italy - Last active: 1 month ago - Tests: 3 - Portfolio: 20

    I love coding and problem solving.I have 3+ years of experience in the web development sector. Love working on both server and client side code. I like to get to know my clients closely to facilitate better communication. Love playing with innovative design and expressive UI. Always pay close attention to every tiny little details to make the user experience better at every step. I'm doing my bachelor's course in computer engineering in the polytechnic of turin university and In addition I look for exciting projects that use modern and bleeding edge technologies in the freelance communities. Portfolio: http://foysal.it Github: http://github.com/foysalit

    $60.00 /hr
    174 hours
    4.67
  8. Branden Moskwa

    Branden Moskwa

    Web Development and eCommerce Specialist

    Canada - Last active: 4 days ago - Tests: 3 - Portfolio: 3

    Branden Moskwa is a Doer and Achiever, having competed in NCAA College Baseball, Scout to the SanDiego Padres in the 2005 NL West championship season and Assistant coach at TRU for the 2005 National Championship. After injuries continued to sideline his competitive sports career he returned home and became one of the trail blazing pioneers to complete a newly offered and nationally acclaimed entrepreneurship degree program offered at Mount Royal. During his studies Branden also re-found his love of technology, ingrained in him from childhood, where his father would lug a “Luggable” computer up and down flights of stairs so that Branden could learn the artful skills of programming when growing bored of the unbeatable tic-tac-toe games. Just months after graduation quit a stable job with a fortune 500, to begin building his mobile advertising empire. Within another 4 months, before the days of social media and online viral campaigns was featured in over 30 traditional media outlets including CBC, CNN, and the Globe&Mail. Using technology unseen in the industry, as an accelerator Branden took lead of the new and emerging market space. Several years later, after negotiating international licensing agreements, Branden closed one final deal and ventured onwards to new entrepreneurial experiences. Branden co-founded Tradeopolis Communications in 2006, and grew this organization into a profitable consulting firm with increased profits year over year. Branden believes that to survive in business requires obsessive focus and relentless determination, coupled with genuine and honest interactions with all those around him. He marries these together in perfect harmony. Nominated for the 2013 Guardian Small Business Leader Of The Year, Branden is passionate about connecting and building relationships, specifically with entrepreneurs and works in an advisory capacity with various clients he believes have the "it" factor.

    $70.00 /hr
    779 hours
    5.00
  9. K thomas L.

    K thomas L.

    Analog and Digital Designer - Over 20 yrs. Exp.

    United States - Last active: 9 days ago - Tests: 2 - Portfolio: 1

    Experience in small signal analog design, sensor interfacing, signal conditioning, sensor applications, data capture and analysis, digital design, microprocessors and small FPGA based systems. I have over 20 years experience developing ideas and bringing them through the design process to a finished product. I develop entire systems, including power, mechanical, optical, and software aspects. I excel in small, innovative designs using new technology. I design for durability and dependability coming from a background of experience in designing for harsh environments, high volume production lines, medical, and space applications. I have design experience in serial communications, optical systems, rf communications, programming, DSP hardware and software design, PC board design and technical writing. I offer my services to take your idea and bring it all the way to production, or to fill any need in the process. I am also available for consulting, helping you to refine your ideas into something that is both manufacturable and functional.

    $70.00 /hr
    2,533 hours
    5.00
  10. Muhammad Asif

    Muhammad Asif

    Wordpress | Wishlist Members Expert | DAP Expert | OP.2.0 Expert.

    Pakistan - Last active: 1 day ago - Tests: 4 - Portfolio: 19

    I am expert in building websites using: Wordpress, Php, MySql, HTML/CSS, Technical Customer Support Management, Joomla, Woo Commerce, Wishlist members, Digital Access Pass (DAP), Optimize Press 1.0 and 2.0, Genesis Framework, Woo Framework.. Cloning and migration. Integration of 1shoppingcart, Premium Web Cart, 2co, Paypal Clickbank. Customization of: Aweber, MailChimp, GetResponse, IContact Form and setting up. I am a quality communicator and deliver project in time so far throughout the Odesk history. I have earned certificate for Woo Commerce sites setup and Creation and Managing Responsive templates.

    Groups: Bluehost Developers and Designers

    $56.00 /hr
    4,603 hours
    4.99