Top Upwork Freelancers

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  1. Andrey E.

    Andrey E.

    Web Scraping Expert and PHP Web Developer

    Russia - Last active: 3 days ago - Tests: 7 - Portfolio: 12

    I'm web scraping expert/full stack developer with 7+ years of commercial experience. I'm good problem solver holding M.S. in maths and computer science. Today I'm offering webscraping/php/javascript services as a freelancer. My main skills: • Web scraping, parsing, automation, data processing • Simplehtmldom, Goutte, Symfony Browser Kit, Cheerio, CasperJS, Regular Expressions, Xpath • PHP, JavaScript, Java, NodeJS, PhantomJS, LUA • HTML5, CSS3, LESS, Bootstrap Framework • MySQL, MongoDB, Redis • Memcached, ZeroMQ, ReactPHP • SocketIO, Websockets • REST, SOAP, XML, JSON • Matlab, Wolfram Mathematica • Jquery, KnockoutJS, BackboneJS, RequireJS • Prestashop, OpenCart • Experience working with APIs: Ebay, Spotify, Amazon AWS, Amazon MWS, Flickr, Facebook Graph, Vk.com, GitHub, Instagram and several others • Git, SVN • Apache, Nginx, Curl • Amazon AWS • Linux, Vagrant • Understanding of OOP principles and software design patterns • Teamwork experience My github account is https://github.com/256cats My blog: http://256cats.com/ Over the years I’ve developed a lot of web scrapers of different complexity mostly using PHP (simplehtmldom, browserkit) and NodeJS/PhantomJS (casperjs). Some were simple regex-based and others were complex distributed systems with multiple proxies and Amazon AWS support. Also I developed a wide range of websites using PHP, HTML, JavaScript, CSS and MySQL including several e-commerce websites (+ Prestashop, Opencart). I built sites both from scratch and using frameworks, developed custom modules and extended existing ones for my clients. I have experience in PHP/MySQL performance tuning. Last two years I was working as MMO game (Clash of Clans/Heroes of Might and Magic-like mechanics) logic/backend developer. I’ve implemented distributed message queues, realtime leaderboards with Redis, Mysql, PHP. Developed battle-related algorithms (game unit classes, attack/defend, shortest path, quadtree). Then I’ve done some frontend development, e.g. – developed embeddable javascript classifieds widget and fitness/health single page web application with realtime updates/notifications (HTML, CSS, JavaScript, Jquery, Knockout.js, MomentJS, REST, AJAX, Socket.io).

    Groups: Coding Champs

    $39.90 /hr
    156 hours
    4.98
  2. Diana S.

    Diana S.

    Illustrator / Print and Graphic Designer

    Romania - Last active: 1 day ago - Tests: 5 - Portfolio: 14

    Hi! I am an experienced illustrator and designer, extremely creative, with a mathematical mind, very reliable. Balancing creativity and technical requirements is my strongest point. I have a Master’s degree in Architecture (2012), and a Bachelor's in Finance (2008). Graphic and Print Design I take any content and infuse it with your brand's personality, making it convincing, understandable, structured and beautiful to look at. I am a proficient Photoshop, In-design and Illustrator user and have a solid understanding of print requirements. My experience ranges from Health, Food & Beverage to IT, designing books and magazines, marketing material for web and print, catalogues, presentations, brochures, posters, product packaging. Illustration I can draw almost anything and have a huge imagination and story-telling power to add to my technical skills. I often mix digital and traditional media: I use graphite pencils, ink and watercolor, mixed with digital editing and vector illustration. My experience is based in publishing, children's books, product and packaging , web illustrations. I am looking forward to working with you!

    $30.00 /hr
    500 hours
    4.97
  3. Sebastian Caceres

    Sebastian Caceres

    Illustrator, Character Designer, storyboard artist

    France - Last active: 5 days ago - Tests: 3 - Portfolio: 35

    I offer you my experience in illustration, graphic design and animation. I have developed a wide range of knowledge in illustration (digital, water colour, ink...) and 2D animation technics (Flash animation, stopmotion, cutout, traditional animation...). I fully manage the Adobe Suite and others software of design and animation. I am seeking opportunities to offer my experience to you or your business.

    $30.00 /hr
    442 hours
    4.92
  4. Tanmoy S.

    Tanmoy S.

    Web Developer | Android Developer

    Bangladesh - Last active: 1 day ago - Tests: 13

    Greetings. This is Tanmoy, computer science graduate, basically a programmer working with Web & Android application development. Web Development: I've strong knowledge on PHP/MySQL/JavaScript and frameworks on those like WordPress and Joomla. For MVC, I worked with PhalconPHP, Laravel & YII. My expertise is mainly on WordPress and PhalconPHP. I developed at least 800 WordPress based website which included usage of different themes, plugins, custom theme & plugin development, custom field/meta/taxonomy/cron etc. I'm very skilled in REST API based projects. I can develop API platform for you with JSON/XML response or SOAP API. Android Development: I normally develop application (not games) for Android. I'm highly skill in SQLite Database, HTTP/HTTPS/Socket connection, File, Media, In-App Purchase, Google Play Licensing, Camera, Location, Sensors etc. based projects. I use Java instead of third-party tools to provide excellence. Social Login Integration: I provide social login integration service both for web and mobile application. For modern app, you must need it to engage more users. For my expertise, dedication and hard work, I always got great feedback from client. What you're still waiting for? Just hire me to get your project done.

    Groups: Application Developers Alliance, AWeber...

    $33.33 /hr
    1,161 hours
    5.00
  5. Oscar R.

    Oscar R.

    DevOps, Linux System Administration

    Panama - Last active: 5 days ago - Tests: 13 - Portfolio: 5

    DevOps, Linux System Administration and all Unix related platform/services are my passion. I am research oriented with horizontal mentality, self motivated and I feel comfortable when I take new challenges, I perform well when I work under pressure. I am proud to be a problem solver ! My core skills: FreeBSD, Solaris, Linux, pfSense, Mikrotik, Capistrano, CFEngine, Chef, Asterisk, Tropo, Twilio, EJabberd, Xen, Proxmox, vmware, OpenStack, OpenNebula, AWS, Joyent, RackSpace, HP-Cloud, OpenVz, Varnish, Nginx, Lighttpd, Apache, Yaws

    $133.33 /hr
    1,561 hours
    5.00
  6. Thomas L.

    Thomas L.

    Flash, Flex, Actionscript, Education/Teaching, Mobile (Android/IOS)

    United Kingdom - Last active: 2 days ago - Tests: 10

    I first started programming with Perl-CGI, C, HTML, CSS and Javascript in a Linux environment. I have worked on a wide range of projects, and in recent years I have developed additional skills in Flash and Flex. I regularly create Android and IOS applications in addition to online and desktop applications. I have experience of game design, and I am confident that I could contribute to the creative design process. You can see my own demonstration games at www.orientalfudge.co.uk. I have also worked on a series of multi-player games for a client using the XIFF/Jabber chat server. I can program Actionscript 3 both as a script and as OOP. I find Flash CS6 particularly advantageous for fast prototyping. I can also program in Adobe Flex using Flash Builder 4.6. In 2008-2009 I decided to embark on a teacher training course. I value the flexibility offered by this profession and at the time of writing I am involved in creating video lessons for programming in Actionscript. I would welcome the opportunity to get involved in online/virtual teaching in addition to software development opportunities. --- Information about using Adobe AIR to create Android and IOS apps: 1. Myth: Apple doesn't allow Adobe AIR on its platform. Reality: Adobe AIR has been used for development of mobile applications for Android and IOS for several years. 2. Myth: Apps created in Adobe AIR require additional software to be downloaded to make them work. Reality: This used to be the case, but apps created in Adobe AIR are now self-contained and do not require additional software to run. 3. Myth: Adobe AIR is inferior to apps programmed in Java for Android or C in IOS. Reality: Apps created in Adobe AIR can be programmed to be indistinguishable from native apps, including compatibility with the latest retina displays. They can be built to have responsive layouts and intuitive user interfaces. 4. The advantages of using Adobe AIR to build apps: (a) You save on development time because only one set of code needs to be produced. (b) If you need updates later on, only one set of code needs to be updated. (c) If you already have Flash files for the Internet, it is easy to adapt them to use on mobile phones. (d) Your app will look the same on both Android and IOS by default. 5. Issues to be aware of when commissioning mobile apps built in Adobe AIR: (a) They won't install on older ARM6 phones (for Android) or the iPhone 3. (b) Some phone functions cannot be accessed directly by Adobe AIR and require 'native extensions' (programs that can be accessed by the app which have been written in code native to that platform). (c) The Adobe AIR interpreter is built out of native code, so the performance of an AIR app is lower by definition. Techniques to optimise app performance mean that you may not notice the difference, especially if your app is not hungry for processing power. (d) They do not make use of any in-built user-interface elements provided by the Android or IOS platforms. (e) AIR apps sometimes need updating when a new mobile operating system is released to be compatible with the new operating system (this is also true of native apps, but to a lesser extent in my experience). If you want your apps for 'in house' purposes (i.e. not for general release), then this issue is less likely to affect you. Please contact me if you want to know more or if you are unsure about whether or not Adobe AIR would be suitable for building your app. If you want your app to look and behave in exactly the same way on Android and IOS, then Adobe AIR may be your ideal solution with the added advantage of requiring only one set of code to be written instead of two.

    $38.89 /hr
    1,140 hours
    5.00
  7. Amritpal Singh

    Amritpal Singh

    Logo Designer, Branding Expert, Illustrator and Digital Artist

    India - Last active: 11 days ago - Tests: 3 - Portfolio: 54

    I've been working as a freelance artist, illustrator and graphic designer for over 6 years. I specialize in Logo Designing, Illustrations, Branding, Print & Digital Media & Online Trainings. I'm also well versed with Adobe Photoshop, Adobe illustrator, Adobe After Effects. My freelance experience includes 2000+ hours of enriching work and more than 100 successfully completed jobs with some great & motivating feedbacks from clients. My clientele range from small businesses to large corporations: • Sanebox for Google and other prominent email clients, California • New Code Media, Norway (Branding and Web Development company) • Red Sky Vision, UK (Marketing Experts) • Abacus, UK • PAPP- The Party App, Germany (Android based application) • Espoir, Australia (Renounced French Bicycle Brand) • The Gadget Express. India (Online E commerce portal) and many more…… I am very ambitious and have the determination to accomplish anything. With a track record of consistent top-level performance and the proven ability to meet tight deadlines, I will help you meet and exceed your goals. I look forward to working with you. Cheers!

    $66.67 /hr
    2,301 hours
    4.96
  8. Alexander Miloradov

    Alexander Miloradov

    ASP.NET and C# Senior developer / Architect

    Russia - Last active: 1 day ago - Tests: 11 - Portfolio: 13

    ● More than 10 years of experience on the .NET stack. ASP.NET MVC sites (frontend and backend), desktop applications, any tasks using the best ways to solve. ● Use the best practices for building a correct and extensible architecture and high-quality code. Patterns, unit testing, any source control systems, team working. ● Always in touch, reliable, self-motivated and goal oriented. Provide steady work progress with maximum productivity of each hour of work.

    $44.44 /hr
    3,591 hours
    4.77
  9. Jeanie Lyubelsky

    Jeanie Lyubelsky

    Technical Editor & Proofreader at clearfactsresearch.com

    United States - Last active: 2 days ago - Tests: 7 - Portfolio: 19

    Contact me to capitalize on your knowledge and achieve your objectives. Great proofreading deals are found in limited hourly contracts for fixed-rate prices—just ask! As an experienced editorial services provider, I will gladly take care of your needs and provide you with exceptional editing and proofreading services. You may see more about specific service price ranges here: http://clearfactsresearch.com/prices-services. Feel free to see my dependable turnaround time schedule, which is updated regularly based on editorial demand: http://clearfactsresearch.com/turnaround-times. How do I look at your written work? Let's engage your readers and reviewers with clearly communicated content and get desired results! My specialized editing and proofreading services can help you be rewarded with increased readership, successful contracts, publication, funding, and growth. Just let me know what you need... Anyone can increase positive recognition and rewards with the right expertise and support. As an experienced editor who is also a certified technical writer, I specialize in purpose-based language with multiple levels of editing, copyediting, rewriting, and proofreading to give you right-on-target results. You can capitalize on your knowledge by increasing clarity in your professional papers, manuscripts, articles, reports, proposals, user guides, documentation, and more. Completely comfortable in using my native language at an expert level, I know how to make your writing look terrific. My proofreading, copyediting, and editing services give you the lowest prices with exceptional outcomes, while my original writing sells for more than $50 per hour on an open market. I gladly accept editing and proofreading jobs on oDesk even when the job title is "writer," but the tasks are actually editorial work. We can also schedule fixed-price orders with limited hourly contracts. Just Google "Jeanie Editor" to see more about my work at regular market rates. Regularly working for authors, business owners, engineers, finance specialists, attorneys, and other technical-specialty professionals, I am flexible and competent in my chosen areas of professional specialty. For example, I am the managing editor, copyeditor, and proofreader for a professional robotics journal, I write engaging press releases that inspire trust and confidence, and I competently carry out many other editorial assignments. Dependable and efficient, my full-time career is focused on producing you with publication-ready content. Strengthen your achievement curve by contacting me to provide you with top-quality editorial reviews. I can effectively enhance your written materials for clarity and credibility by editing for grammar, word usage, style, formatting, spelling, punctuation, while providing editorial suggestions for interesting and compelling text. I successfully work with material written in many styles, including APA, IEEE, GPO, AP, CMoS, and other styles as requested. Save time and get results by hiring a certified technical writer as your editing, copyediting, and proofreading specialist. In our busy world of mixed messages, I check and double check your written work so that it will be noticed, understood, and remembered. I am native English speaker with a certification in technical writing and extensive experience in technical editing, copyediting, proofreading, rewriting. I am also a member of the IEEE Professional Communication Society, the American Finance Association, and the Association of Science-Technology Centers. My research-based MS degree in social sciences with a concentration on programs funding research, along with hands-on technology experience, further qualifies me in understanding authored technical concepts. I can offer you the best experience with professionally reviewing your book manuscripts, professional papers, articles, handbooks, user guides, proposals, venture capital and investor reports, and more. You want to hire an active technical-topics editorial specialist for the following materials: computer science, software development, robotics, electrical, mechanical, civil engineering, electric power generation, transmission, distribution, utilities, and biometrics; journal publishing projects in .doc, .docx, PDF, LaTeX, ShareLaTeX, MS Word, and other formats; business marketing plans, proposals, finance, securities, investments, summary budget narratives, and more. More about my work and recommendations: http://clearfactsresearch.com/faqs https://www.linkedin.com/in/jeanielyubelsky Contact me today and see what I can do for you!

    $35.00 /hr
    959 hours
    4.98
  10. Cheri Doyle

    Cheri Doyle

    Expert Logo Design, Brand Identity, and Clean Print Layout

    Canada - Last active: 1 day ago - Tests: 6 - Portfolio: 83

    With over 5 years of experience, my specialization is in logo design, as well as complete identity packages (logo, business card, and stationery). I also have experience in print design, illustration, and creating graphics for the web, such as headers, banner ads, and icons. I've worked for a wide range of clients across a variety of industries. You can count on me to provide modern and elegant work that will give your brand the presentation it needs to stand out!

    $35.00 /hr
    4,369 hours
    4.91