Top Upwork Freelancers

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  1. Alexander G.

    Alexander G.

    Experienced Game Developer - Unity3D, iOS, Android, PC, PS2, PSP, Wii

    Ukraine - Last active: 23 hours ago - Tests: 2 - Portfolio: 8

    I have more than 10 years of game development experience as a main programmer in the following areas: OOP, C++, Engine Development, Graphics (DX, OGL, console APIs), Physics (ODE, PhysX), Sound, AI and Tools. I also have experience in integration of various third-party libraries like script languages, Flash player, SpeedTreeRT. I'm looking for opportunities to develop games for you or to help you in related areas.

    $33.33 /hr
    6,188 hours
    4.53
  2. Stanley Smith

    Stanley Smith

    Algorithm Scientist

    United States - Last active: 23 hours ago - Tests: 2

    Identification algorithm expert and physicist applying robust mathematical/DSP based solutions to stochastic and deterministic problems. Top rated with a 99% job success rate and over 5,000 hours worked. Focus of activity includes analysis, synthesis, artificial intelligence, neural networks, identification algorithms, statistical detection theory, and adaptive pattern recognition. Application areas include human detection, business model simulations, face recognition, voice recognition, sound artifact recognition, biomedical signature characterization (fluid flow, respiration, apnea, transfer functions, heart rate, snoring); modality prediction, turbulence, second-order gradient analysis, equity forecasting, scheduling (NP and fuzzy logic), time series analysis; synthesis of adaptive scenarios, detection sub-systems, econometric modeling; physics based modalities, anomalous sensor detection, image processing, accelerometer, radar signal processing, demodulation, telemetry, neutron detection, radioactive isotope identification, sensor fusion, target tracking (Kalman, multi-hypothesis, unscented), automated data mining (Internet spider tool development), marketing statistics, genetic algorithms, neural networks, software development, business venture metrics generation, multi-tier HTML parsing, general data feature extraction. Develops prototype emulation of mathematical concept models to subsystem for developers. Expertise in decision theory, DSP algorithms, peak detectors, anomalous detection (acoustics and RF), demodulation signal processing, audio analysis, telemetry processing, pattern recognition, adaptive signal processing strategies, ballistic missile tracking (Kalman and multi-hypothesis), image processing clutter signal processing, K-means clustering, optical deconvolution, image segmentation, anti-jamming radar, interference cancellation communications signal processing, dye laser optics, explosive detection image processing, micro bolometer FPA image processing, CCD camera image stabilization, gamma/neutron nuclear detection, X-ray backscatter signal processing, multi-sensor overlap projection modeling, DF processing. Proficient in statistical simulation model development and rapid prototyping in high-level languages. Strong proposal writing skills including business, SBIR, and technical white paper development. Technology trade study experience (commercial product development). "The real essence of work is concentrated energy"

    $88.89 /hr
    5,098 hours
    4.90
  3. Juan Arrabal

    Juan Arrabal

    Illustrator / Concept artist

    Spain - Last active: 23 hours ago - Portfolio: 20

    My portfolio: http://kokodriliscus.deviantart.com/gallery/ My webpage: www.kokodriliscus.com I'd like to get jobs as concept artist or as illustrator. I think I could carry out any kind of job related, with satisfying results. My strong points are creatures, fantasy and manga, and my skills include digital artwork, animation, pixel art, pixel animation, 3D modeling, 3D animation and video editing. I can also manage with programming (specially Java)

    $27.78 /hr
    5,417 hours
    5.00
  4. Ryan McMichael

    Ryan McMichael

    AWS Partner Cloud Solutions Architect

    United States - Last active: 14 days ago - Tests: 5 - Portfolio: 6

    Cloud Solutions Architect with heavy immersion in all AWS technologies. Member of the AWS Partner Network and AWS Accredited Technology Professional. Prominent member of the Rightscale ecosystem, serving on the Customer Advisory Group. Significant project experience with Azure, Rackspace, and OpenStack. Looking for new challenges, interesting problems, and not afraid of big numbers. Recent projects include the design and deployment of a secure document storage system for an elite global bank, the cloud infrastructure construction and management for a US cellular carrier, the scalable infrastructure creation for a global industrial manufacturing monitoring company, and the complete AWS migration (including 50TB database) for a top-tier global digital marketing company. My primary skills lie in the automation and orchestration of multi-platform, highly scalable, highly available public/private hybrid systems. I pioneered the adaptation of many Microsoft systems into an automated, scalable cloud environment. I am looking to use these skills to grow my experience and knowledge, and I'm most interested in implementing original solutions for unique problems. Please note that although I am sometimes available for emergency situations, I am usually working on several projects at any given time and generally cannot accommodate requirements that need to be fulfilled yesterday. Platforms: Rightscale/AWS/Rackspace/Azure Systems: Specializing in Microsoft technologies with an extensive Linux background Databases: MongoDB/MySQL/MSSQL/Oracle/PostgreSQL Core competencies in most AWS products Aussi, je parle le français si vous êtes intéressé. Keyword alphabet soup: Docker, Jenkins, Hadoop, NoSQL, Ruby on Rails, PostgreSQL, MySQL, RightScale, Elastic MapReduce, OpenStack, Nginx, DNS, Route53, Apache, Ubuntu, Centos, RedHat, OS/X, CloudWatch, Nagios, Icinga, AWS-CLI, HAProxy, ELB, VPN, Chef, Puppet, CloudFormation, Redshift, Glacier, S3, DevOps, Shell, Bash, Powershell, Python, Git, SVN, OpsWorks, JIRA, LiquidPlanner, Salesforce, OpenVPN, RabbitMQ, NewRelic, Digital Ocean, etc...

    $100.00 /hr
    7,039 hours
    4.99
  5. Milan Kaneria

    Milan Kaneria

    Efficient WordPress Plugin & Theme Developer / PHP ~ HTML5 ~ AJAX

    India - Last active: 8 days ago - Tests: 8 - Portfolio: 2

    My main area of work is WordPress Development. Have coded more than 90+ WordPress Themes along with custom sidebars, modules and plugins. I have designed and developed many commercial WordPress plugins that automates cloning, installing and updating of WordPress blogs. My plugin development also includes few high acclaimed plugins that are used by renowned SEO / SEM specialists. I also do PSD to X/HTML + CSS conversions with pixel perfect coding and general PHP / MySQL development work. I am very passionate about my work and enjoy my freelancing career. I truly believe in "Customer is King" theory and always try to exceed my client expectations with quality work.

    Groups: MailChimp Experts Group

    $35.00 /hr
    3,866 hours
    4.96
  6. Katherine ann G.

    Katherine ann G.

    Webmaster | WordPress | HTML/CSS | Headway Themes | Genesis Themes

    Philippines - Last active: 23 hours ago - Tests: 4 - Portfolio: 11

    Here is a list of my skills: 1. WordPress installation (manual and using auto-installers like Fantastico or Softaculous) 2. PSD/HTML/CSS to WordPress theme conversion 3. PSD/ HTML/CSS to WordPress child theme conversion using Headway Premium WordPress Theme or Genesis Theme 4. PSD to HTML/CSS conversion 5. WordPress plugin installation and set-up 6. WordPress theme (free or premium) installation and customization 7. WordPress content management (creating posts and pages) 8. WordPress Multisite set-up 9. setting up and creating campaigns/autoresponders using MailChimp and Infusionsoft 10. CSS fixing 11. basic Graphics editing (using template or an original image) 12. setting up Google Webmaster Tools and Google Analytics 13. creating and setting up Facebook pages I started learning Web Design through blogging when I was in College (2004). I chose WordPress as my blogging platform and I am still using it until now. I'm a hobbyist but I always dream of someday making this as a career because the 'www' always fascinates me. I taught myself everything I need to know about WordPress including making themes, WordPress installation and a whole lot more. I have attended Photoshop classes in the past. However, I mostly learned the ropes through self-studying. I am always eager to learn new things. I am very comfortable in learning on my own: just give me tutorials or a set of instructions and I will give you good RESULTS.

    $13.89 /hr
    7,800 hours
    4.89
  7. Jon W.

    Jon W.

    Technical Support Specialist/Help Desk

    United States - Last active: 23 hours ago - Tests: 8

    I have over 15 years training, experience, and a proven ability as a Tier 1-2 Technical Support Specialist and Help Desk Technician. This allows me to exceed your expectations when it comes to outstanding support and customer service. I’m ready to diagnose and repair Windows XP-Windows 7. My experience ranges from replying to customer email to hands-on computer repair. There is no computer issue that can’t be resolved. Where I stand apart from the others is my ability to do so in a professional and timely manner.

    $22.22 /hr
    6,082 hours
    5.00
  8. Anthony S.

    Anthony S.

    Front-end web developer

    Russia - Last active: 23 hours ago - Tests: 5 - Portfolio: 6

    Hello, my name is Anton, I'm a Russian based Front End web developer with 5 years of dedicated experience. I have a passion for clean and neat web interfaces that produce seamless user experience. In my everyday work I build: - JavaScript applications, using Backbone and AngularJS frameworks. - Hybrid mobile applications with Ionic, jQuery Mobile, Phonegap. - Modern CSS3, with OOPCSS via BEM methodology, with the help of LESS/SASS. - Visual data representation with D3.js. - Server side JavaScript with Node.js.

    $27.00 /hr
    9,307 hours
    4.91
  9. Peter A.

    Peter A.

    Danish Supporter

    Philippines - Last active: 1 month ago - Tests: 7

    I am a native Danish speaking Customer Supporter/ CSR /Adminstrator that is very reliable, trustworthy and flexible. I also do audio transcription from Danish to English. I am a goal oriented person and can work with minimal supervision. I give 100% undivided attention to my work. Quality is my prime objective in every task that I do.

    $20.00 /hr
    3,479 hours
    4.97
  10. Manoj P.

    Manoj P.

    SharePoint & Office 365 Consultant (MCTS, MCP in SharePoint, Master)

    India - Last active: 1 day ago - Tests: 2 - Portfolio: 5

    Over the last 8+ years, I have been working across different Microsoft technologies & the SharePoint Server (SPS 2003, WSS 3.0, MOSS 2007, SharePoint Server2010, SharePoint Foundation Server 2010, SP 2013 & Office 365) using C#, ASP.NET(2.0 to 4.0), ADO.NET. I have just started to work on ODesk for a challenging works. Organizational Experience : - I have got vast experience of working for big IT software companies to the start-up like environment where I have contributed massively to the project and delivered complex projects from the scratch. - I have been building n-tiered systems, Object Oriented applications, Windows/Web based systems and enterprise collaborative platforms using Microsoft technologies. - I have more then 5+ months experience at client side (USA). Technical Expertise: SharePoint Technologies : SPS 2003, WSS 3.0, MOSS 2007, SharePoint Server2010, SharePoint Foundation Server 2010, SP 2013, Project server 2007 , Office 365 Operating Systems : Microsoft Windows Server 2000/2003/2008 R2 Version Control : VSS, Tortoise SVN, TFS Languages : C#, C++, Java Script, HTML, XML, PL/SQL Web Technologies : ASP.NET, XML, DHTML, HTML, CAML, SharePoint Designer 2007 Component Technologies : Web Services, SOAP, REST, Client Object Model Databases: SQL Server 2005/2008 Other Microsoft Products: MS CRM, MS GP 9.0

    $22.22 /hr
    1,706 hours
    5.00