Top Upwork Freelancers

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  1. 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
    3,112 hours
    4.82
  2. Martyn Shuttleworth

    Martyn Shuttleworth

    Experienced technical and academic writer. Native English speaker.

    Greece - Last active: 5 days ago - Tests: 8 - Portfolio: 20

    As a graduate with many years experience of writing and proof-reading academic papers, I am familiar with all major citation practices. I am able to write papers for most subjects, from philosophy to physics. Without complaint, I adapt to any topic and style of writing, and I am thorough in my research. I firmly believe in going the extra mile required for completing the task to a high standard. As a perfectionist, I never compromise upon quality, whatever the size of the task.

    $33.33 /hr
    52 hours
    4.97
  3. Marek Bogatek

    Marek Bogatek

    Fullstack developer with inclination towards non trivial problems

    Poland - Last active: 2 days ago - Tests: 9 - Portfolio: 1

    I am a wizard. Seriously. I use rare combination of talent, skills and hard earned knowledge and experience to solve others' unsolvable problems. Wonders and miracles done immediately, impossible stuff with minor delay. Upwork is an opportunity to learn more, faster, and get myself involved in much more interesting, diverse projects that I would thought possible previously. Such cases were, for example, helping Panama based company OSOP with systems they use to predict (and provide warnings for) earthquakes in mid-America region; or a web crawling problem that was neglected by everyone passing through the Chegg Courserank project (creating the general solution for this took me to senior engineer position... and further, to team management); lately I was able to provide candidate and code reviews and design basic specifications for entirely novel software - and surely, such contracts showed up as well. You can see some of my previous private/hobby projects on github: http://github.com/zencodism ... and some social programmer activity at stackexchange sites under the same 'zencodism' login. So far, I've created numerous utilities and scripts (C / C++ / Python), a complex image manipulation and postproduction suite (C++ / asm / CUDA, worked on this as a member of a team), some visualisation software: for custom equipment (Java) and voice emotion recognition (Node.js), and a few web based projects (Python with Django, PHP, Perl, Groovy - working with a team on huge CRM system) including also long team Java-based web scraping suite I both developed and managed the team involved. Further down the road I'm turning to web applications along with their server counterparts - everything from designing communication protocols with cryptography and some redundancy to a space simulation game I'm writing as a hobby. I can work in and administer various operating systems (Windows, Linux, *BSD, Solaris... this came in handy lately when web development job turned into disaster recovery of remote server), use several databases (mySQL, PL-SQL) and quite a few programming languages; even created one myself, just for fun. What will be next, may be up to you. Feel invited.

    $34.00 /hr
    2,352 hours
    4.72
  4. Shrikrishna M.

    Shrikrishna M.

    Programming is my addiction. Software is the winner.

    India - Last active: 12 days ago - Tests: 2

    Applying to your job posting is the first thing that I could do to prove my skill set :). Okay, Below is the list in which I'm comfortable to work diligently. 1) Hire me for integrating APIs of Google, Facebook, Twitter, PayPal, Authorize.Net, Skrill (MoneyBookers), Aweber, MailChimp, ZenDesk, Twilio (VOIP, SMS and other telecommunication services provider) and similar. I love doing this and I'm very good in this. All time favorite. 2) Hire me for WP (WordPress) Development & Customization's. Plugins, Themes, whatever be the task/work it is. I do have very good experience in dealing with & using its API (WP action hooks & filters). 3) Executed (Developed) some bigger projects from scratch (start to end) in PHP individually. So, grabbing the concepts and customizing any existing portal, CMS, eCommerce store developed in PHP is very easy for me. Hire me for this type of works. I know my way around's. Walked a lot on this. 4) Chrome Extensions, Firefox add-on's, Android apps (using PhoneGap) and Data scrappers. Lacks experience in Android APPS else all is perfect. Yours truly, Krishna

    $33.33 /hr
    920 hours
    5.00
  5. Andrey B.

    Andrey B.

    html5/xhtml/css/css3 Developer, Smarty, Zend Framework, Ruby on Rails

    Ukraine - Last active: 3 days ago - Tests: 3 - Portfolio: 35

    I have over seven years experience of front-end. I live in Ukraine. Time zone GMT + 2:00. Completed over 1000+ projects, 250+ of them with implementation to the engine based on Ruby on Rails, Zend, Smarty, Codeigniter. Now my specialisation is a large projects (50+ models). I know how to properly organize work with a lot of styles. I am able to do modular structure of html elements. Whereby sites that I do becomes semantic constructor. This enables the project to grow freely. I can offer to you deep knowledge and experience of css3 animation, css3 3d transform, icon font creation, css sprites, data:uri, microformats. I know how make website load time and render time optimization. Specialties: HTML5, CSS2-3, jQuery, Zend/Smarty, Ruby on Rails Experience: HTML5/HTML/xhtml/CSS/CSS3 - excellent level (layers layout (div), semantically correct code, Handcrafted code) SASS, LESS, Stylus - fluency in Jade, Slim, Haml - fluency in SVN, GIT - fluency in jQuery - fluency in SVG, icon Fonts - fluency in Ruby on Rails, Zend, Smarty, CodeIgniter - layout implementation. I can write code right into sites engine, this save customers time and money. Photoshop - user level To create a page of average difficulty I spend 6-9 hours.

    $44.44 /hr
    529 hours
    4.77
  6. Robert Hoisan

    Robert Hoisan

    After Effects and Premiere Pro certified

    United Kingdom - Last active: 1 month ago - Tests: 4 - Portfolio: 1

    I am a Motion-graphics and visual effects artist, working in TV, film and advertising since 2002. I create Explainer Videos, Motion Graphics and Video Training Material. I am specialized in creating complex video training material for schools or technical work courses.I can create incredibly accurate training videos for industries like industrial mechanics or aviation. My 4000 + hours on Odesk with 100% positive feedback from all my clients gives you the guarantee that you will be receiving the highest quality. For long time contracts i am willing to negotiate my hourly rate. However, i do prefer fixed price contracts if the client agrees. Have a look at my portfolio for more info: rhm-design.com Let me know about your project. Thank you!

    $55.56 /hr
    4,434 hours
    5.00
  7. Alexei Shulga

    Alexei Shulga

    Senior back-end engineer, Zend Framework developer, team-lead

    Russia - Last active: 1 day ago - Tests: 10 - Portfolio: 8

    TOP 25 oDesk Web developer - awarded several times! Successfully assembled and managed distributed teams. Are your freelancers taking a piss? I reviewed, fired and forced bad coders to return money and I staff professional people on oDesk. Certifications: Zend Certified PHP5 Engineer, Zend Certified PHP 5.3 Engineer, Zend Framework Certified Engineer. Oracle Certified MySQL developer. Unbeatable 14+ years of experience in LAMP environment. Experienced with high-load, high-trafficked sites with data/code distributed over several data centres. Worked with the best companies onsite (Germany, Australia, Thailand, Malaysia) and remotely (all over the world). Proven expertise in the following technologies/platforms/skills: PHP 5, outstanding OOP, OOA and OOD Python 2.5+, Django, Flask, etc. JavaScript (prefer jQuery, but can use MooTools and DoJo) versatile in XML solutions (along with XSLT and XPath) HTML (XHTML, W3C compliance, strict mode, CSS) MySQL 5, PostgreSQL, database optimization NoSQL (Redis, MongoDB, etc) AMPQ (RabbitMQ, etc) GIT (SVN, CVS, but really prefer GIT) GAE (Google App Engine: Python) APIs (various Google APIs, Facebook, Mailchimp, Twitter and many more) e-commerce: (osCommerce, Magento, digishop, xcart, zencart, etc) project tracking software (Assembla, Springloops, Mantis, Beanstalk and others) lots of other skills, including but not limited to unit, functional and regression testing, agile/lean methodology, team leading, security audit and more. Unsurpassed skills in fixing bad 'indian' code and salvaging projects by doing step-by-step full code refactoring without breaking live mode. Expect professional attitude, clean code, solutions that you won't need to fix after the project is finished, lots of ideas regarding your site/service, security audit, etc. For fulltime offers (more than 6+ months) there are nice options available: discount (up to 5$ per hour), 24hr support in case of emergencies (response time from 0 mins to 2 hrs). And the last, but not least, you get what you're paying for. If you prefer to use the cheapest dentist in another country to established and known stomatologist, then please do not contact me. Thank you.

    Groups: MailChimp Experts Group, Pinnacle Cart eCommerce Application...

    $61.11 /hr
    7,617 hours
    4.99
  8. Marina Janeiko

    Marina Janeiko

    UX & Product Design

    United States - Last active: 19 days ago - Tests: 5

    Portfolio site (WIP): www.marinajaneiko.com I am looking for a new exciting product design opportunity in a creative, innovative and enthusiastic virtual environment, and I am eager to join a fast moving and fast learning, constantly improving and experimenting team. I am a vibrant and self-motivated individual with passion for self development, learning new things and creating meaningful experiences through my work.

    $69.00 /hr
    4,187 hours
    5.00
  9. Miranda R.

    Miranda R.

    XHTML/CSS/Flash/Photoshop/Illustrator Pro in Seattle, USA

    United States - Last active: 1 day ago - Tests: 17 - Portfolio: 3

    Over the last several years I have developed many websites using a variety of methods. I enjoy the flexibility that CSS/XHTML provides, so that is my medium of choice - all of my work is standards-compliant (XHTML 1.0 strict), and I have also converted many outdated sites into standards-compliant sites with table-free CSS layouts and improved functionality, leading to a better overall user experience. In addition to web coding, I have extensive experience in photography and traditional graphic design. My goal is always to produce sites that are as visually appealing as they are functional. I also have experience working with ColdFusion, Flash, PHP, JavaSript, and related technologies, and can convert PSD files into themes for Wordpress, Joomla, osCommerce, and similar formats, with great attention to detail and retention of full functionality. I believe in keeping 'the big picture' in mind - I incorporate SEO techniques into every project, and plan projects to allow for future expansion and updates.

    $38.89 /hr
    7,788 hours
    4.85
  10. Andrew Hessel

    Andrew Hessel

    wordsmith

    United States - Last active: 1 day ago - Tests: 3 - Portfolio: 1

    I'm a gifted storyteller, dedicated to helping clients tell theirs. I say this unabashedly and with complete confidence. The proof, of course, is the words. Today, finding the right words is more important than ever, and I strive to under-promise but over-deliver. The name of my company says it all: words-are-my-biz And my philosophy is simple: The right words sell. The wrong words leave sales on the table. WHO AM I? I’m a professional writer living in Portland, Oregon with a lifelong passion for the power of the written word. I’ve written everything from novels to blogs, sales collateral to web content, ad copy to letters, business proposals to sales plans and training manuals. Not to mention a few thousand papers getting my four kids through high school and college. I love what I do. WHAT IS MY BACKGROUND? I bring more than thirty years of sales and marketing business management experience to every project, and by this I’m talking about major corporations to mid-size companies and start-ups, working in fields including software, real estate, law, publishing, advertising and services. I confess to having a particular fondness for high degree-of-difficulty challenges. JUST HOW DO I DO WHAT I DO? By asking questions, listening and considering what I hear, followed by collaborative brainstorming to develop a plan we both embrace with confidence and enthusiasm. As you seek synergy within your organization, I seek it with my clients. It pays huge dividends. The common thread is in finding the way to communicate more effectively, internally and externally, with staff, customers and prospects. The common challenge is in identifying the strengths, weaknesses, opportunities and unique competitive factors confronting each client. HOW CAN YOU LEARN MORE ABOUT ME? Visit my website, home to my novels, blog and publishing company, Old Dog Publishing.

    $95.00 /hr
    754 hours
    4.99