Top Upwork Freelancers

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  1. Dan Midwood

    Dan Midwood

    FP Developer / Mentor

    United Kingdom - Tests: 2

    I'm an expert in Clojure and Scala functional programming, and scalable systems. My greater background is in Java development and I have sufficient knowledge of Javascript and web front end programming to be productive. I'm well versed in all stages of application development, from the early planning and pre-planning days on to post release. I'm a big fan of agile and the devops movement, and I love to work in great cross-discipline teams. I've been remote contracting for over a year now, I'm a great communicator and familiar with a wide range of remote collaboration tools. Before this I was an employee at Mind Candy, an entertainment startup based in London, where I was working on Scala and Java development, at first on the Moshi Monsters game and then later leading back end development on the Moshling Rescue mobile and Facebook game. Both titles required efficient, well designed code able to scale to many concurrent users and easily handle times of peak load. Throughout my time at Mind Candy I also acted as a mentor to other members of staff that were coming newly to Scala from a Java background, helping to ease their transition and become fully adept at writing idiomatic functional Scala code. As well as development I've been involved heavily in "developer multiplier" tasks, through such things as adding continuous integration servers, building a deployment pipeline, adding code metrics and other, more manual, things such as code reviews. I'm a big fan of sharing information, presenting what I'm working on and interested in and hearing about the same from others. I can help you with development, system design, choosing a database (SQL and NoSQL) and designing data types, scaling systems, migrating from Java to Clojure or Scala, improving your tooling and build chain, and more. I'm available for long term engagement, or for shorter projects. To find out more about me and my experiences, please check out my resume, personal website, portfolio and GitHub all linked to below. http://danmidwood.com http://resume.danmidwood.com http://portfolio.danmidwood.com http://github.com/danmidwood

    $110.00 /hr
    614 hours
    5.00
  2. Alexey Nashchekin

    Alexey Nashchekin

    C# Developer

    Russia - Tests: 1 - Portfolio: 1

    I have about 5 years programming experience working with .Net technologies. I am an expert in .NET (C# and VB.NET) and SQL Server. I also have some projects on other DB platforms, such as Oracle. I have MCPD certificate in Web Development. I have created web applications using both webforms (asp.net) and MVC3. I have created some desktop projects, using winforms. My experience include various web applications using MVC3 and C# and asp.net. I am an expert in using and customizing Umbraco CMS, including developing extensions for it. I am mostly interested in developing backend and database functional for applications, though I can do most frontend tasks just fine.

    $25.00 /hr
    115 hours
    5.00
  3. Jon Garrido

    Jon Garrido

    Gis Developer

    Spain - Tests: 4 - Portfolio: 8

    For more than 10 years working with GIS technologies. I'm expert in Web GIS development with ArcGis API for javascript and Silverlight, Openlayers, leaflet, google maps and many others. I have worked as a GIS analyst in many companies such as Bureau Veritas, Tragsa and Basoinsa. Finally I became a GIS developer, working in Tecnosylva and in Tracom Consulting as a GIS Manager. I can develope as well desktop GIS software with .NET, Arcobjects, Dotspatial and Python. I'm responsalbe of map servers maintenance such as ArcGis for Server, Mapserver and Geoserver. I have been Database manager with SGDB like MS SqlServer, MySql, PosgreSQL+Postgis. ESRI Young Scholars Award 2012-2013 winner

    $39.00 /hr
    183 hours
    4.80
  4. Karel Boek

    Karel Boek

    Authorized consultant for Streaming Media and Software Development

    Norway - Tests: 2

    Streaming Media and Web expert with more than 15 years experience. Authorized Wowza Media Systems consultant. Experienced with consultancy, architecture and implementation of large Streaming, IPTV, OTT, etc. solutions Some of the competences: - Streaming Media, webTV, IPTV, satellite technology - Wowza Media Systems products and services - Amazon Web Services - Java, PHP w/various frameworks, .NET, JavaScript, - MySql, MSSQL, Redis, various NoSQL databases See also www.raskenlund.com

    $175.00 /hr
    341 hours
    5.00
  5. Sravana kumar Karna

    Sravana kumar Karna

    Expert Manual, Database,Mobile and Automation Test Engineer

    India - Tests: 7 - Portfolio: 6

    Over the past 3 years, I involved in testing a wide variety of web based projects. I involved in activities like preparing test plan, preparing test scenarios, test cases and most challenging test data. I also have some good experience in DB testing,Mobile testing and knowledge on ETL testing process. 1. Experience in Regression, integration, Compatibility, security, performance and automation testing areas. 2. Good sound knowledge in STLC and SDLC. 3. Having experience in Data base testing which includes Front End Vs Back End(Db), Web services Vs Backend(Db), PL/SQL Testing which includes Procedures, functions,triggers,cursors and packages. 4. Having experience in Data Migration testing and SQL Testing. 5. Good understanding on Database Testing Process 6. Worked on QTP 10.0, LR 9.5 and QC 10.0. 7. Experience in testing Android, Iphone and Ipad devices

    $8.61 /hr
    608 hours
    4.95
  6. Ivan Fokeev

    Ivan Fokeev

    Universal programmer

    Russia - Tests: 5 - Portfolio: 3

    Hello. My name is Ivan. Over the last 7 years I have developed different information systems including Web sites and CRMs using many technologies such as: PHP, HTML, CSS, Javascript (+ JQuery), MySQL and many others. Last 2 years I dive into Ruby and Python. I really love Ruby On Rails and Django (but Rails more). Like to write clean OOP code with unit-tests. I worked with PHP frameworks: Kohana, Zend Framework, CodeIgniter. I like MVC and REST, have experience in writing REST API. Had projects with VK API, FaceBook API, Amazon S3, Cloudflare and others. I practiced with Arduino and have made a little robot: http://goo.gl/KTJn4P I can program simple apps with C/C++/C#/Objective-c (mac & iPhone) Also I like powerlifting :)

    $22.22 /hr
    152 hours
    4.73
  7. ZhouChe Lin

    ZhouChe Lin

    Top iOS / Android Developer

    Singapore - Tests: 4 - Portfolio: 4

    *2000+ Hours Veteran on Upwork* * Member of exclusive TOP RATED mobile developers group* I'm proudly saying I am the one of best developers in the fields of iphone / android mobile applications and games. I am very strong at Objective C, SWIFT, Java, Phonegap / Xamarin, PHP / Javascript, NodeJS. I have rich experience in social applications for mobile devices, geo-location service, real-time messaging, Parse framework, Crashlystics, mobile games using cocos2D, cocos2dx, Unity3D. I have developed 10+ social applications, mobile games, POS applications for certain companies, emergency-purpose applications, shopping & lifestyle applications with In-App payment features. I have almost all sorts of devices including iPhone 4s, 5s, 5c, 6 Plus, iPad Air, iPad 3, iPad mini, Google Nexus, Samsung Galaxy S5, S4, HTC One. I always pursue long-term relationship with great clients. I am happy to help you here. Imagine what nobody knows, Make it everybody can see. Just do it with me, and enjoy the Power of Idea. Best, Zhouche Lin.

    Groups: Application Developers Alliance

    $55.56 /hr
    2,244 hours
    5.00
  8. Andreas Cindra

    Andreas Cindra

    Android, IOS & Web Expert

    Indonesia - Tests: 2 - Portfolio: 3

    Having 6+ years experience in Java and Objective C programming language. I have made many iOS and android application publish on both app and play store. * Strong communication and interpersonal skills. * Capable of working individually or as a part of a team effort. * High eagerness for learning, hardworking and having capability to work under pressure.

    $25.00 /hr
    538 hours
    5.00
  9. Vladimir Rybas

    Vladimir Rybas

    Expert Ruby on Rails Developer, Team Lead, PM

    Thailand - Tests: 3

    70% of all software projects fail. Why is that happening? A few reasons: - Poor communication - Poor communication - Poor communication - Badly defined requirements - Wrong project's priorities - Sloppy development practices How do I address these issues: *Communication & Requirements clarification* - Monday to Friday daily status meetings at fixed time, suitable for all team members(customer is a team member). - Weekly iteration planning meetings. - Transparent and easy-to-use Project Management tools. *Project prioritization* - Complexity estimation - Short iterations & short feedback loop *Development practices* - Perfectly clean code - Test Driven Development (99% test coverage). - Obligatory code review & collective code ownership. - Domain Driven Design, Lean Architecture, GRASP, SOLID If this sounds good for you, let's get this done. LinkedIn: http://www.linkedin.com/pub/vladimir-rybas/13/901/1a9 Github: https://github.com/vrybas Tech Blog: http://vrybas.github.io/

    $100.00 /hr
    5,930 hours
    4.30
  10. Moiz A.

    Moiz A.

    Certified Information Systems Auditor (CISA),CISM, IS Consultant

    Pakistan - Tests: 1 - Portfolio: 1

    Experienced associate who have been involved in Security Reviews, Information System Audits, Revenue Assurance Reviews and Special Assignments at various large and medium-sized organisations. My core area of expertise includes assessment of internal control environment for information systems and critical IT processes; evaluating system of internal control and risk management; pre & post implementation reviews; security reviews of operating system, database and applications/ERP(s)

    $11.11 /hr
    195 hours
    5.00