Top Upwork Freelancers

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  1. Tanya Slavin

    Tanya Slavin

    Expert writer, researcher, editor

    Canada - Last active: 1 day ago - Tests: 3 - Portfolio: 2

    I am professional writer, researcher and editor with 14 years of experience in the field. My core specialties are academic writing, grant writing and resume writing, but I also enjoy content writing and creative writing. I have worked on projects ranging from academic papers and grant proposals to product descriptions and blog post, and have earned a Top-Rated status 12 months after joining UpWork (oDesk). With a Ph.D. in Linguistics and a B.A. in English from a top North American University, I have published several articles in academic peer-reviewed journals, and served as a reviewer for a number of publications. As an academic writer, I am well familiar with all major citation styles, including APA, MLA, HARVARD, CHICAGO, and IEEE. As a grant writer, I have managed to secure grant money for educational projects, scientific projects, non-profit organisations and for-profit start ups. During my graduate studies, I have raised a total of over 130,000$ for my own academic research over the course of 6 years. I love writing and can turn any type and amount of information into a compelling and easy-to-read narrative, matching the desired style to be anything from highly formal to informal and friendly, depending on the project and the client's preferences.

    $33.33 /hr
    303 hours
    5.00
  2. Ricardo Torres

    Ricardo Torres

    Unity-3d/Corona/Titanium/Phonegap/iOS/Android/Web App & Game Developer

    Portugal - Last active: 1 day ago - Tests: 7

    Your trust is from my past work history. Others trust will be from your great feedback. Your saying "Ricardo's work is great" is much more helpful for me than "I'll give you a bonus." Your satisfaction is a bonus for me. Now I'm excited to introduce myself. I have 5+ years mobile app & game development experience. I have more interests in hybrid tools like Unity, Corona SDK, Titanium, Phonegap, and HTML. These tools are great to develop a cross-platform apps and games in easy way but still in a great shape. I save much time to create both iOS and android apps using these hybrid tools. Unity is the most powerful game engine for me to develop a wonderful game. My favourite language is c# or javascript. I'm also experienced in Lua scripting which lets me be the Corona SDK expert. I was a web developer and it was the great experience which gave the way to become a phonegap professional. I'm also interested in other hybrid tools like HTML5 and Titanium. To say the native coding, I have extensive knowledge of objective-c and swift. I have developed iOS and Android apps for more than 5 years As a game developer I have mastered the spritekit and box2d. I'm also a java developer who has eclipse as my favourite tool to make an Android app. If I have to say more differencies of mine against other developers, I was challenged to many tasks which required me to learn new technologies. For most of those tasks I was successful to finish the task with all the requirements. In overall I love to work, love to learn, and love to have a great relationship. With my skill and experience, I'd like to help you get success. Have a good day.

    $50.00 /hr
    426 hours
    4.90
  3. Alexander Golubyatnikov

    Alexander Golubyatnikov

    Expert Magento Developer

    Ukraine - Last active: 1 day ago - Tests: 5 - Portfolio: 21

    Hi everyone. My name is Alex. I'm senior php developer. I have over than 8 years of experience in design & development of commercial market data, magento ecommerce web sites, analytics solutions, social networks etc. Have a strong background in data architecture, data management and financial data warehousing. Very experienced in building robust, scalable, optimized web applications. I was one of the developers who developed core for huge projects. Worked with zend, yii, cake, magento frameworks and others interesting things use Zend coding style. So, if you you are looking for good developer with value for money just tell me! :)

    $55.56 /hr
    2,268 hours
    4.99
  4. Rathish P.

    Rathish P.

    Salesforce Architect/Consultant/Developer

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

    - Deep expertise in analyzing Salesforce system and designing data models. - Experience with configuring Salesforce standard features. - Customization using apex trigger, classes and visual force pages. - Integration with other third party applications/systems. - Experience in creating vivid custom reports and dashboards. - Deep working knowledge of SOAP/REST APIs, HTML, CSS, Javascript, jQuery etc. - Practical experience with software methodologies such as agile/scrum, iterative and waterfall models.

    $35.00 /hr
    163 hours
    5.00
  5. Ryan Wilfong

    Ryan Wilfong

    Web Designer & Developer

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

    I am a 100% full-time freelancer specializing in creative and efficient designs that work on all devices/platforms. I work with HTML, CSS, PHP, jQuery, MySQL and all Adobe CC apps. Custom WordPressed solutions with enhanced functionality are my main focus. I use a design/build approach to increase efficiency and decrease development time and costs. Please feel free to invite me to interview on your project. I'm always looking for new opportunities.

    $66.67 /hr
    206 hours
    5.00
  6. Julio Carvajal

    Julio Carvajal

    CCIE 42930,2xCCNP,Juniper Specialist

    Costa Rica - Last active: 1 day ago - Tests: 2

    Senior Network and Security engineer with more than 10 certifications from different vendors including a CCIE. As a Cisco TAC engineer I fixed over 2000 different issues on multiple platforms. Let me show you I am your network engineer. Certifications List: CompTIA Security+ CCNA JNCIA CCNA Sec CCNP Security CCNP Routing&Switching JNCIS-SEC CCIE Routing&Switching 42930 Languages: Spanish, English

    $88.89 /hr
    104 hours
    4.91
  7. Rostyslav Y.

    Rostyslav Y.

    Linux Administrator and Speed Optimization Expert

    Austria - Last active: 5 days ago - Tests: 6 - Portfolio: 2

    Over 7 years of experience in: Platforms: VPS, EC2, Linode, Rackspace, Azure and DigitalOcean Linux: Ubuntu, Debian, CentOS Web servers: Nginx, Apache, PHP-FPM, HHVM, Memcached and Varnish Databases: MySQL, MariaDB, Percona Control panels: WHM, cPanel, Plesk, Webmin, Webuzo, Ajenti CMSs: WordPress, Joomla, Drupal, Magento, phpBB Mail: Exim, Sendmail, Postfix, deliverability Monitoring: Piwik, Munin, Monit DevOps: Vagrant, Docker, Puppet Advanced AWS setups, S3, RDS, ELB, Route 53, VPC Migrations and backups Server performance tuning and page speed optimization Reducing costs

    Groups: Upwork Verified Web Developers

    $35.00 /hr
    1,271 hours
    5.00
  8. Roman B.

    Roman B.

    System Administrator

    Russia - Last active: 6 hours ago - Tests: 8

    Experienced system administrator. Worked for 6+ years in ISP company as Lead System Administrator. Many linux systems been installed and supported by me. I have big experience in VMWare vSphere, Veeam Backup, Netapp SAN and networking. Also I've managed Cpanel WHM hosting, so know everything about Apache, MySQL, PHP, DNS and email. I know how to setup VoIP and IPTV systems from small to big size. I can setup monitoring for all of this systems (SNMP, service based and system agents). Also I have big programming knowledge in PHP and other OOP languages. I'm looking for System Administrator or Lead System Administrator position.

    $35.00 /hr
    310 hours
    5.00
  9. Debbie Metters

    Debbie Metters

    Native English Writer and Proofreader

    Spain - Last active: 1 month ago - Tests: 4 - Portfolio: 16

    I am a Writer and Proofreader from the UK with years of experience and lots of motivation. I have published material in a variety of writing fields such as; ESL, education and travel. I also have experience creating activities for English learners and children. In a previous role I co-wrote an activity book for kids in the field of education and crime. This is now for sale on Amazon. I have recently started a creative writing group in Madrid where I live and so get the opportunity to express my creative self on many occasions. I also have many years of experience in editing. I have to proofread and edit a variety of documents from my students with a relatively fast turn-around time. Due to three years working and living in Spain my Spanish language skills are now at an advanced level so I would also be able to do some small translations from Spanish-English or English-Spanish. I have unlimited access to a computer and the internet and I am adept at using technology having completed all of my academic projects using word, excel,data programs and researching online. I use track changes for proofreading and google docs and Dropbox when dealing with clients.

    $33.00 /hr
    379 hours
    5.00
  10. Nikolay Zavada

    Nikolay Zavada

    Expert Web Developer

    Ukraine - Last active: 2 days ago - Tests: 11 - Portfolio: 5

    The last 1.5 years I have been worked with Big Data projects. I've gained experience in working with noSQL databases MarkLogic and ElasticSearch. Skills: Back-end: NodeJS(+ExpressJS) / PHP Front-end: Angular.js / Require.js / Bootstrap Databases: MarkLogic / ElasticSearch / Redis / MySQL Over the last 12 years, I have developed a wide range of websites using PHP and MySQL including sites for big companies and small businesses. Aimed on long-term cooperation.

    Groups: Upwork Verified Web Developers

    $35.00 /hr
    3,935 hours
    4.77