Top Upwork Freelancers

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  1. Oscar Rendon

    Oscar Rendon

    Ruby, Rails, Js and FP

    Colombia - Last active: 15 days ago - Tests: 6 - Portfolio: 2

    Over the last 7 years, I have developed a lot of solutions with primary focus on web applications. My core skills are: Ruby, Ruby on Rails, Javascript/Ajax, C#, ASP.NET, HTML5, MySQL, SQLServer, Oracle. I also used to work with LAMP. I've solid experience on Cloud (Heroku, GAE), windows/linux server administration, software architecture and high level design. My github profile: https://github.com/orendon

    Groups: Engine Yard Ruby on Rails Professionals Network

    $50.00 /hr
    260 hours
    5.00
  2. James H.

    James H.

    Program Manager, Proposal Writer and Strategic Thinker

    Thailand - Last active: 20 hours ago - Tests: 7

    Proposal Lead and Writer, Cost Savings Technologist, Project Manager, Project Planning and Strategic Thinker. Business and Executive mentoring, personnel development and trainer. Consultancy services including: • Commercialization and Innovation • Business Transformation and Planning • Business growth strategies and development • Project Management • Risk Identification and mitigation planning • Corporate Responsibility and Sustainability • Business Capture Management • Proposal Architecting and Writing I am a recently retired experienced Senior Program Manager with over 30 years experience in the Aerospace and Defense Industry looking to help others with their projects. Specializing in program management, technical management and subcontract management team leadership. I have led program management development programs that has trained and certified program managers for large aerospace company. I have led large proposal teams for management and cost volumes for proposals with value greater that $250M USD. Relevant background and program experience in defining and managing the work scope for subcontracts and teammates in large distributed development environments. Strong managerial skills with proven success in project definition, project planning, negotiation and execution Earned Value Management Systems. I am a proven highly effective team leader with excellent interpersonal, coaching and mentoring skills, communication, and team building skills. I am an experienced and trained Black Belt-Six Sigma Facilitator. As my profile shows I currently have oDesk contracts with five major IT companies that utilize my skills and expertise to assist with project management and proposal writing consultancy. I had a past client who has left me somewhat questionable feedback due to unhappiness he experienced. I learned from this experience to only communicate with the hiring client on proposal requirements. He had delegated daily communications with an employee of his who provided conflicting guidance. I followed his employee's guidance, which wasn't the strategy that the hiring client had. Let these four active oDesk contracts and my past experiences be your guide on my abilities and experiences. Linked In Profile: http://www.linkedin.com/in/jhoxsie

    $33.33 /hr
    1,567 hours
    4.95
  3. steven xie

    steven xie

    Web Developer

    China - Last active: 23 days ago - Tests: 5 - Portfolio: 4

    I have 8+ years of J2EE/JavaScript web development experience.Engaged in internet industry.I have a strict and careful work habits. Familiar with the following technologies: 1.Java,Jsp,Servlet,Spring-FrameWork,Hibernate,SpringMVC,MyBatis,Struts,Lucene,Velocity,Freemarker 2.Development environment:Eclipse,NetBeans,Maven,CVS,SVN,GIT,Jira and so on... 3.Unit Test technologies:Junit,MockITO,DBUnit;Selenium 4.Application container,such as Resin,Tomcat,Jboss,GlassFish,Jetty 5.Front-end technology,such as Html,CSS,Javascript,Jquery,Bootstrap,PSD convert to HTML 6.Proficient in mobile web app development,such as phonegap technologies. 7.Familiar with db technical,such as Oracle,Mysql,Db2 8.Operating system:Linux,Windows

    Groups: Crossrider

    $36.00 /hr
    4,706 hours
    4.96
  4. Andrey Cherevatenko

    Andrey Cherevatenko

    Senior PHP Developer, MySQL, MongoDb, HighLoad

    Ukraine - Last active: 20 hours ago - Tests: 6

    I am a professional php developer, with 8 years of experience. Result-oriented web developer, with experience in developing high-loaded projects(over 10million server requests per day), API for mobile and web applications. Design and construction of data processing and analysis. Processing image, video and audio. My skills: PHP ZendFramework, Yii, Phalcon, daemon on PHP, Gearman, Payment Processing, API, SOAP DB MySQL (optimization, indexes, replication, partitioning) MongoDB (optimization, indexes, replication, sharding, Aggregation Framework) Redis, SphinxSearch (optimization,distributed index, real-time indexes) Elasticsearch Cache memcache (memcacheDB), XCache, APC. Other Git, SVN, Nginx, Apache, php-fpm, JavaScript, JQuery, HTML, XML, CSS, Google Apps Script

    $30.00 /hr
    1,118 hours
    5.00
  5. Abhishek R.

    Abhishek R.

    EDI Consultant

    India - Last active: 20 hours ago - Tests: 9 - Portfolio: 3

    I graduated as a B.E. in Computer Science from Vishveshwariah Technological University. I have around 6 years of IT experince, with exposure to various technologies such as Enterprise application Integration (EAI), Electronic Data Interchange (EDI), Managed FIle Transfer (MFT), Web Application Design and Development. I have initailly worked for software service providers such as L&T Infotech and HCL Technologies. I was part of the EAI/EDI team when I worked for these companies. I had taken on various roles from Support Analyst, Developer, Consultant and Bussiness Analyst. I had worked for various clients such as Ryder Inc, Barclays Technology Centre, CDW and Eaton Corp. The main highlight during this period was my work as a Bussiness Anaylist for Ajinomoto USA. The project involved building a new EDI system and migrating the partners of the old system to the new one. The challenge here was that the project had a hard deadline of 2 months. I took one month to understand the existing system and come up with the solution for a new system. Once it was approved I lead the team that implemented the solution in one month and thus keeping up with the deadline. I quit my job in 2013 and am now working as a freelancer on odesk and elance. I am now not only focused on EDI and EAI but am also focused on Web Application Developing and automation scripting. As a freelancer I have developed various GAS, PERL and PYTHON scripts that automate work that was being done manually. I have also developed web applications on the stack PYTHON/DJANGO/GAE. Additionally I have continued my work as an EDI consultant and developed EDI solutions for clients that integrate their systems with partners such as Amazon, UPS, Target and so on.

    $33.33 /hr
    950 hours
    4.99
  6. Phillip L.

    Phillip L.

    Antenna Design/Modeling/Analysis/Measurement System Design/Development

    United States - Last active: 20 hours ago - Tests: 3 - Portfolio: 8

    I'm interested in all aspects of antenna design and integration from conception to testing of the installed product, including antenna measurement system design and implementation, hardware integration, and development of test, measurement, and analysis software. I have over 25 years of corporate experience in electromagnetic theory and design including field theory, and antenna and RF design. My technical background includes o Ten years experience in electromagnetic modeling and development using FEKO o Proficient developing electromagnetic aircraft models using CAD tools such as FEMAP and CADFEKO o Hardware design, fabrication, test, implementation and integration of antennas o RF signal processing, FFT analysis, RWR AOA error analysis RF compatibility studies as well as the development of coupling and RF cosite compatibility analysis tools o Link margin analysis and studies between air and ground stations o Shielding effectiveness and lightning effects analysis and modeling o Coupling and multipath measurements, studies, and analysis o Design, development, and integration of automated RF and antenna test systems including positioner control, and multi-channel data acquisition using PNA analyzers o Proficient in the development of data acquisition and analysis software using Visual Studio.net Applications have included o Large aircraft antenna, and RF component system integration o Antenna and radome design and modeling o FEKO analysis including aircraft CAD model development, employment of various modeling techniques, and consulting/ mentoring o Cosite analysis including the compatibility between systems on a platform, knowledge of the techniques to minimize system-to-system interference, and consulting/ mentoring o Developing specifications, statement of work, and managing the technical aspects for subcontracted component suppliers o Application and testing with basic passive microwave components including but not limited to antennas, transmission lines, filters, isolators, and switches o Application and testing with active microwave components; primarily amplifiers, receivers and transmitters o Design, fabrication, testing and integration of military antenna systems and RF components o Antenna performance improvement by designing, testing, recommending and implementing solutions Since leaving the corporate world, I have enjoyed programing and other analytical challenges in other areas of application including electronic design, education, and finance.

    $45.00 /hr
    538 hours
    5.00
  7. Mubin ul haq Vhora

    Mubin ul haq Vhora

    UI/UX Designer (Web & Mobile)

    India - Last active: 20 hours ago - Tests: 2 - Portfolio: 27

    Passionate and focused in seeking solutions of complex business and user problems in creative ways; by focusing on the end user to design products that are usable, engaging, functional and profitable. UI/UX Designer having many years of experience. I would like to continue focusing on producing creative interfaces based on user-centered design principles. My ultimate goal is to work, collaborate & learn from creative, driven people. Ability to think and evaluate design feasibility across business, product scope, content strategy, visual design and technology. Research skills for competitive analysis, environmental scans and field studies. Prototyping & Wire framing - Low to High Fidelity. Documenting task analysis, workflows and user-case scenarios. Skills User Experience Design, Interaction Design, UX Strategy, Research & Analysis, Information Architecture, Mobile App Design, Content Strategy, Wire Framing, User Flow Design, Functional Scope, Prototyping, Responsive Web Design, Front End Development, Project Management

    Groups: Pro Web Designers

    $40.00 /hr
    904 hours
    5.00
  8. Ewan P.

    Ewan P.

    Writer, translator english-french - efficient, reliable, cheerful

    France - Last active: 20 hours ago - Tests: 10

    Hello, I am a native Frenchman with a Bachelor's degree in French Language and Literature. I am a precise worker: I pay close attention to spelling, grammar, punctuation, fluidity and typography. I cannot say that my English writing is perfect, but I assure you that my French is flawless; I can provide an elegant, high-quality translation from English to French and write on numerous topics. I hope you will trust me to help you. Should you wish to have any further information, I remain at your disposal. Thank you.

    $30.00 /hr
    2,238 hours
    5.00
  9. Jerome Carrette

    Jerome Carrette

    Professional French Voice Talent

    France - Last active: 3 days ago - Tests: 3 - Portfolio: 1

    Hi! I am a professional French Voice-Over Talent, with a Parisian accent. For Voice projects, I can work on any type of voice assignment from my home studio. I have recorded lots of commercial and educational videos, audiobooks, promotional material, radio announcements, corporate messages, etc. You can hear some demos of my work at this link: https://www.dropbox.com/s/vtk9qi5a5lyhumn/jerome%20carrette%20voice%20over%20Demo%20-%20French%20Ed1.2.mp3?dl=0 I look forward to working with you! Best, Jerome

    $45.00 /hr
    91 hours
    5.00
  10. Chelsea Wolfe

    Chelsea Wolfe

    Creative Web Developer/Designer

    United States - Last active: 2 days ago

    I am a hard working perfectionist with a keen eye for detail (I can tell you the differences between a dragon, drake and wyrm ;) ) and I have a lot of passion for my work and put out nothing less than the highest quality work and reply promptly to emails or other communications. Having years of design and development experience under my belt you can always feel at ease when I am working on your site. Experience: √ Customization of WordPress Themes √ WordPress Plugin Installation and Configuration √ Woocommerce Installation and Configuration √ MailChimp Integration with WordPress √ Design and Development of Custom PHP Page Templates √ Form Building Using Various Form Builder Plugins √ Site Migration/ Mirror √ Photoshop Mockup Creation √ Bootstrap With a proven track record I am confident you will be completely satisfied with my work.

    $72.22 /hr
    134 hours
    4.78