Top Upwork Freelancers

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  1. Santosh Dhakal

    Santosh Dhakal Agency Contractor

    App Developer at his BEST

    Nepal - Tests: 7 - Portfolio: 11

    I have been actively developing native quality Android apps for 4 years now and am loving every bit of it. I have previously worked as a Team Lead for App Development at leading Software Company ( http://braindigit.com/ ) here in Nepal. Right now I have Co-founded a new App/Web Company named Alchemist Pvt. Ltd ( http://alchemisthq.com/ ) where I work as a full time Lead App Developer. I have developed apps ranging from classified,ecommerce to news aggregator,scheduling and trekking guide. Checkout some of my apps published on Google Play Store using following link https://play.google.com/store/apps/developer?id=Braindigit Video Audition App: An app which records and uploads audition video and has PayPal payment system integrated https://play.google.com/store/apps/details?id=com.britasiasuperstar News Aggregator App: An app which fetches RSS feeds from various news sites with offline storage facility(Similar to Pulse app) https://play.google.com/store/apps/details?id=com.braindigit.nepal.khabar Classified App An app for buying and selling of goods along with facility to post ads https://play.google.com/store/apps/details?id=com.listbingo Trekking Guide App An app used as a trekking assistant for trekkers who travel around Nepal https://play.google.com/store/apps/details?id=com.braindigit.tg Facebook and SMS scheduling: An app which schedules SMS along with Facebook wall posting https://play.google.com/store/apps/details?id=com.braindigit.sms.scheduler On app development ,I have proficiency on following parts -- user interface and app components -- animations and graphics -- media and camera -- locations,sensors and connectivity -- input and text -- data storage -- Google maps API -- Facebook and Twitter API -- Paypal API and Google Play In-App Purchase -- Youtube API -- REST API -- Push notification(GCM) -- app performance and optimization -- app debugging and testing using tools like Bugsense -- Ad platform integration like Google Admobs,Airpush -- localization -- app development using NDK(Native Development Kit) -- OCR(Optical Character Reading) and bar-code scanning -- Android SDK Development -- Google Play Upload -- Wireframe Design -- HTML5,Javascript and CSS3 -- PhoneGap and Sencha Touch -- Version management using Git,SVN You can hire me to " Turn Your Idea Into Reality " as I can assist you right from system analysis,wireframe design to app development and at last on app debugging and app optimization. I am available from 6:25 AM to 2:25 PM (GMT time) on Skype at santu.alchemist or on Odesk mail. Elsewhere I am @Github: https://github.com/laaptu @LinkedIn: https://www.linkedin.com/profile/view?id=43908801 @ StackOverflow: http://stackoverflow.com/users/739306/laaptu @ Wordpress: https://laaptu.wordpress.com/

    Associated with: Alchemist

    $16.67 /hr
    46 hours
    4.75
  2. David J.

    David J. Agency Contractor

    ** Skilled professional software engineer (cs & s/w eng degrees +PhD)

    United States - Tests: 6 - Portfolio: 3

    With 17 years experience in software engineering and development, I've worked on a diverse set of projects. I consider myself a life-long learner and have never hesitated to dive into becoming an expert in new domains. I've worked on projects in academia, for businesses, defense contractors, government laboratores in several countries and also many of my own varied projects. As of May 2013 - I'm available 20hrs/wk (possibly up-to 30). Some areas of expertise include: - Distributed systems & architecting for the Cloud - Web Applications (Ruby & Rails, LAMP - Linux/Apache/MySQL/PHP); AJAX - jQuery/Javascript; web-service APIs (XMLRPC/JSONRPC/REST) - Relational & Object Database Design - Simulation: physics simulation, 3D graphics (OpenGL, OpenSceneGraph) - C++ desktop applications (UI, libraries, components) - Bioinformatics (Biolab Matlab-like bio environment - Java/C#/.NET/Python) - Networking (protocol design; wireless; TCP/IP; HTTP and related technologies) - Embedded systems (hardware system design, construction & programming) - Operating System design and implementation - Language design, interpreter and compiler construction - Human Computer Interaction (HCI) - user interface design & implementation (X11, Interviews/Fresco, Qt, Swing, AWT, Winforms, GTK+) - Robotics: AI, Vision, Path planning, Inverse Kinematics - Hardware: Sensors, VHDL, FPGAs Most of development has historically been in C++, but in recent times I've favoured C#, Java or Ruby. For web applications and services I prefer Ruby but also have experience in PHP. Over the years I've used many languages and can pick up new languages and their library frameworks quickly. I've also designed languages (upto the complexity of C++) and written interpreters and optimizing compilers (so I've not met a language feature I'm not well versed with). I'm a good communicator, proficient at technical writing and have published many papers in peer reviewed journals and other publications. I'm most interested in working on web sites/services, particularly where complex distributed systems involving interacting databases are concerned or in the area of virtual reality, 3D graphics and simulation systems (including cutting-edge 3D game platforms). However, in general I'll find anything challenging interesting to work on!

    Associated with: EgoMachines Agency

    $112.00 /hr
    1,064 hours
    5.00
  3. Ostap M.

    Ostap M. Agency Contractor

    Java Developer

    Ukraine - Tests: 3 - Portfolio: 3

    I am Java Developer with more 3 years of experience. I have developed many projects using modern frameworks and able to learn new one quickly if needed. Before I worked as team member developing networking client-server application and some web projects using MVC frameworks or plain JSP/Servlets. Languages : Java, Python Technologies : JSP, Servlets, JDBC, Web Services, REST Databases : MySQL Frameworks/Libraries: Spring, Hibernate(JPA) , JUnit, JavaFx, Netty Design skills: OOP, Gof patterns, UML Software Development Methodology: Agile, XP, TDD Tools: Maven, SVN, Git, Jenkins IDE: Intellij Idea, NetBeans Other: HTML, JavaScript, jQuery, XML, JSON, JIRA

    Groups: Corona Labs

    Associated with: Progost

    $22.22 /hr
    189 hours
    4.15
  4. Rakshit Menpara

    Rakshit Menpara Agency Contractor

    Node.js Programmer/Architect

    India - Tests: 7

    I have been involved in software development ranging from web applications, enterprise servers and mobile applications over the span of past 7+ years. I see my role in a project as a senior developer, a system architect or a technical consultant. My competency lies in designing and writing complex back-end of enterprise/web/network applications, where reliability is primary goal. I have written applications using Javascript (both client/server side), Java, C# and Ruby in the past. I write well-documented, maintainable code and try to use TDD/BDD and Revision control systems (git, svn, cvs) wherever possible.

    Associated with: Improwised Technologies Pvt. Ltd.

    $33.33 /hr
    3,374 hours
    4.82
  5. Victor Cernobai

    Victor Cernobai Agency Contractor

    Senior C++ Financial/Trading Software Developer

    Romania - Tests: 2 - Portfolio: 2

    Hello and welcome to my oDesk profile, My name is Victor Cernobai and I am a professional C++ developer exclusively specialized in developing trading (and related) applications. I am in the financial industry since 2009. During this time I have participated in the development of a wide range of modules involving concepts such as high frequency trading, client/server architecture, distributed modules, OOP design patterns, low-latency optimizations, multi-threading, GPU acceleration, IPC, Socket Programming etc. My main IT expertise is C++, but I also do have working experience with Python and C#. Some more details about my expertise: a) API connectivity: Interactive Brokers API, Currenex API, FIX protocol with QuickFIX, IQFeed API, Trading Techologies, CQG, PFGBest, FXCMpro, Hotspot/ITCH, Bloomberg Open API; b) Building financial charts: OHLC, bars, Point and Figure; c) Implementing technical indicators like: Moving Average simple/exponential, MACD, RSI, bollinger bands etc. d) Data storage solutions: MySQL, SQLite, MSSQL, binary files; e) Back-testing and Optimization solutions; f) Trading algorithms: arbitrage algos, mean reversal, trend-following, trendline based etc.; As a freelancer I am only struggling to: a) Apply my programming and trading knowledge to bring higher value to trading applications; b) Be always close to the client; c) Take projects only when 100% confident they can be done on time and on budget; d) Provide the best answers to clients questions; e) Work only with serious clients. Thank you for your time and do not hesitate to ask me for portfolio samples! Best regards, CVI

    Associated with: CVI Trading Software Agency

    $55.56 /hr
    1,065 hours
    4.88
  6. Sergio Pulgarin

    Sergio Pulgarin Agency Contractor

    Software Engineer

    Colombia - Tests: 8 - Portfolio: 3

    Providing clients around the world with high quality services in Software Design, Engineering and Development. I have a degree in Electronic Engineering; I have excellent Software development, and Networking skills. My area of expertise is design, engineering and development of Software applications with Networking functionality, use and design of functionality exposed through web APIs. Additionally, I'm experienced in the following areas: - Networking applications: TCP Servers, Sockets, Network requests, Web viewers, Web APIs. - Webkit development for full integration of Web and Desktop applications. - GUI development: Native looking user interfaces. - Filesystems: Creating, reading and writing, text and custom data types. - SQL Database handling for desktop and web applications. - SkypeKit application development. - Server side web applications using Django. I have experience in Object-Oriented design and use better coding practices; I always keep in mind readability and reusability. I also deliver documented sources, when required.

    Groups: LoginRadius

    Associated with: SOLID, GSOLID

    $33.33 /hr
    732 hours
    4.95
  7. Serhiy Kanyuka

    Serhiy Kanyuka Agency Contractor

    I like to mix technologies to get the best solution for client.

    Ukraine - Tests: 7 - Portfolio: 5

    I am developing for more than 12 years and participated in development of big projects (tech lead, project manager,developer) and developed small projects on my own. There were native client-applications for Windows (C++, C#) and Linux as well as servers and web applications (Linux, Windows). For the last 4 years I was also working with architecture design and development in few areas like: Vending Machines Web Services and Web Application in Web Clouds (AWS) Internet Payments Distributed Databases Microcontrolers internet of things set-up and monitoring of Linux/Freebsd servers and developing the web-applications. I have quite a large experience in developing and debugging so I can look at project deployment as developer and as administrator that gives better and faster result. The learning of new technology and it’s intergation is my favourite activity that’s why I will understand you easily and integrate in your project team. My skills: OS: Busybox, Linux, Debian, RedHat - expert, FreeBSD and Windows Server - proficient Web servers: Apache, Nginx, Tomcat, haproxy Database servers: Mysql, Postgresql CMS:Yii, CodeIgniter Advertising: OpenX, AdSense Scripting: bash, perl, php, javascript Languages:C, C++ SDK:Qt Virtualization: Vmware esxi/server Other: standard network services (DNS, DHCP, Samba, SVN, http proxy, backups, monitoring etc), firewalls and routers I have work with hosting: AWS, hetzner.de, rackspace, amh.com, advancedhosters.com

    Associated with: Krechet Company

    $24.44 /hr
    7,812 hours
    5.00
  8. Damian Z.

    Damian Z. Agency Contractor

    Experienced Software Engineer

    United Kingdom - Tests: 12

    ========= 1500+ oDesk Hours - Excellent feedback - Good oDesk tests results ========= Years of experience of C++ (STL, Boost) and C#, Java, Python and Android programming, digital video quality estimation, IPTV Software Development, Asterisk and A2Billing system configuration etc. Digital TV and IPTV Specialist. Cooperation with Video Quality Experts Group. Participation in big commercial project for public safety monitoring - INSIGMA. Working in IPTV, DVB. Specialist of VoIP domain. Experienced in configuring and administration of VoIP system based on Asterisk and A2Billing. Good knowledge of video streaming technology as well as protocols and codecs used in digital video transmission: H.264, MPEG2-TS, MJPEG, RTP, RTSP, IGMP, UDP, SDP. Very good practical knowledge of Linux operating system: Debian, Ubuntu, CentOS distributions Experience in developing Android applications Experience with installing, configure and maintain platforms based on Amazon Web Services (AWS): EC2, S3, RDS, SES, EBS, Elastic IP, Mechanical Turk GStreamer API Experience

    Associated with: XMementoIT Agency

    $55.56 /hr
    1,692 hours
    4.97
  9. Martin P.

    Martin P. Agency Contractor

    Mobile Applications Architect

    United States - Tests: 3 - Portfolio: 8

    I am a professional iOS developer. I provide high quality development services for iPhone and iPad. I have more than 4 years of professional development and more than 10 apps submitted to the Appstore. I create a project plan for every project and I always keep the client up to date with the project progress. I have the knowledge to build an app from the ground up and to submit it to the Appstore. My work is a synonym for quality !!!

    Associated with: Samsourcing

    $44.44 /hr
    433 hours
    5.00
  10. Hany Medhat

    Hany Medhat Agency Contractor

    C#/C++/ASP.Net/PHP/ Professional developer

    Switzerland - Tests: 3 - Portfolio: 4

    Over the last 3 years, I have been developing software applications in different domains like desktop applications for small businesses and websites for different applications. I have experience in the following areas: Object oriented design, design patterns, software architecture, C/C++, C#, ASP.NET, PHP, Zend, MySQL, MSSQL, jQuery and others. My core edge lies in applying my experience and skills to develop software solutions that satisfy various client's needs and to establish solid relationships with my clients.

    Groups: Application Developers Alliance, MailChimp Experts Group

    Associated with: Gioventy

    $27.78 /hr
    2,776 hours
    4.98