Top Upwork Freelancers

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  1. Caio A.

    Caio A.

    Django / AngularJS / Python / Twilio - Plivo Guru

    United States - Last active: 6 months ago - Tests: 3 - Portfolio: 1

    I'm an experienced djangonaut with experience building and maintaining applications. I'm very good at taking business requirements or a general use case and translating it into code. Technical requirement specifications are so 1999! Here's how my ideal contract workflow goes: We work in an agile manner, where you create user stories, which describe what needs to be done. I'll ask clarifying questions, and then I'll implement the stories. We'll deploy early and often to a staging site where we can collaborate on any adjustments that need to be made. If you already have other django developers on your project, I'll plug in to the team and use whatever branching strategy the team is using (though if asked, my preference is gitflow.) If you're wanting to build a new app, then rest assured it will be built using best practices so that another django developer can join in and participate without a big tutorial. If you already have a project that follows some semblance of best practice (using a pip requirements file, virtualenvironemnts, etc) then rest assured we won't be spending alot of time on "ramp up". In fact, I don't charge for dev environment setup, checking the code out, getting any dependencies resolved, etc. The clock starts when the productive coding starts (and if that doesn't start on day one, we need to have a discussion about why!) Let's build some apps together!

    $94.00 /hr
    12 hours
    5.00
  2. Konstantin Yarosh

    Konstantin Yarosh

    Software Developer

    Belarus - Last active: 11/11/2014 - Tests: 3

    I've worked on different kind of projects over the past 4.5 years. Customers for that projects were Thomson Reuters and some small business accounts. On that projects I've worked with following server side technologies: ASP, ASP.NET, MS SQL, ADO.NET, .NET 3-4.5, LINQ, ENT LIB, with some amount of front-end technologies: HTML, DHTML, JS, AJAX. I'm looking for job opportunities with development from the scratch, additional development, bug fixing.

    $17.78 /hr
    248 hours
    4.40
  3. Naeem Raheem

    Naeem Raheem

    Expert iPhone/iPad/Android/Blackberry/C#/ASP.Net/PHP Developer

    United Arab Emirates - Last active: 2 months ago - Tests: 5 - Portfolio: 23

    Hi! I am always running towards the mobile world. I have enough experience developing wide range of mobile applications for over 5 years. I’m looking for long-term business relationships with customers. I will provide you - Highest Skills - Perfect Quality - Constant Availability - Correct Deadlines - Stable Communication - Wonderful Cooperation My core competency lies in complete end-end management of a new mobile app development project, and I am seeking opportunities to build mobile app for you or your business. I have good experience and expertise in the following technologies: - iPhone/iPod/iPad, Android - Web Service, Ajax, XML, JSON, RSS, SOAP, WSDL - In-App-Purchase, Push Notification - Image Processing/ Camera related - MySQL SERVER, SQLite, - PHP, WCF C# .Net - Facebook, Twitter , Instagram, Youtube - Google Map Service, Foursquare - CoreData, CoreGraphics, Animation - QR code, Bar code scanning related apps - iPhone5, iOS6 and iOS7

    $22.22 /hr
    2,241 hours
    5.00
  4. Muhammad Aslam

    Muhammad Aslam

    Software Engineer

    Pakistan - Last active: 3 months ago - Tests: 2 - Portfolio: 2

    I am a experienced iOS developer having 4+ years experience. I have hand on experience with Cocos2dx for multi-platform games Unity 3D quite hand on experience Native Apps for ios devices Memory Management Integration of Facebook,Twitter. Integration of chartboost,revmob,admob,applovin and playhaven Audio and video Recorders, Players. User Interface Features like Animations , Gestures , Swipes , Shaking. Push Notification. In App Purchase. Experience with UIKIT

    $22.22 /hr
    27 hours
    5.00
  5. Dmitry Semyonov

    Dmitry Semyonov

    Proficient and initiative Java(J2EE), Android, C#(.Net)

    Kyrgyzstan - Last active: 07/11/2011 - Tests: 8 - Portfolio: 3

    For last 4 years have been working on some projects, mostly refferring to desktop applications, network tools and servers.Good knowledge of OOP, design patterns, software development methodologies.I have a good experience of working in team and usage of different tools for development: Continuous integration at Bamboo and CruiseControl, source control systems, JIRA, Trac and Bugzilla issue tracking systems, Apache Ant and bash scripting.I'm very interested in non trivial tasks according to network operations.

    $22.22 /hr
    80 hours
    5.00
  6. David Kiss

    David Kiss

    Top Rated Software Developer - Java / Spring

    Canada - Last active: 2 months ago - Tests: 3 - Portfolio: 7

    As an Independent Java Consultant, I build enterprise-grade web applications to small businesses. My passion is engineering scalable, robust and future-proof web applications using open-source technologies. I'm a generalist who gets up to speed in a short period of time and delivers results consistently. I'm also an author on Java Code Geeks: http://www.javacodegeeks.com/author/david-kiss/. With 10+ years in the software industry and delivering a dozen different projects I understand how to maximize ROI on Java-based web applications. SPECIALITIES - Taking business ideas off napkins and into reality - designing and building high performing web applications (Spring Boot, REST, AngularJS, Twitter Boostrap, Cloud, AWS) - Identifying and resolving critical customer-facing issues with short turn-around time - Integrating applications with 3rd-party services (JMS, SQL, NoSQL, Cassandra, Kafka, Neo4j, RESTful web services, LDAP, OAuth, Camel) - Scaling applications and resolving performance bottlenecks (Java, Hibernate, SQL) to keep maintenance costs down - Helping developer teams deliver high-quality code consistently (Agile, Scrum, Lean, Continuous Integration, Jenkins, automated deployment, Fabric, automated tests, JUnit, Mockito, JMeter) - Focusing on big wins and minimizing risks I’m located in Toronto, Canada and able to begin working on your job right away. Please feel free to contact me to discuss your project.

    $70.00 /hr
    58 hours
    4.95
  7. Mariusz Z.

    Mariusz Z.

    Penetration Tester, Linux/UNIX Security Admin,Intrusion Analyst, CISSP

    Poland - Last active: 4 months ago - Tests: 9 - Portfolio: 1

    I'm Linux Security Administrator & Web Application Penetration Tester with 8 years of experience in the IT field. I'm CISSP (ID# 478556) and OWASP member. My expertise ranges from designing, building secure & robust systems to analysis of subtle software security flaws. I can help you with: - thoroughly security testing your web application (black-box and/or white-box tests) and helping in mitigating detected vulnerabilities - analyzing and assessing vulnerabilities in your application's underlying IT infrastructure - security hardening Linux/UNIX servers/clusters - recommending solutions and best practices on how to design and maintain secure AWS infrastructures - responding to security incident in Linux/UNIX environment, helping in recovery process (rootkit detection, malware removal, etc.)

    $19.00 /hr
    123 hours
    4.79
  8. Richard Del Carmen

    Richard Del Carmen

    Microsoft Certified Software Developer

    Philippines - Last active: 5 months ago - Tests: 6 - Portfolio: 7

    - 6 years experience designing and developing applications on the Microsoft .NET platform. - Extensive involvement in the phases of Software Development Lifecycle including requirements gathering, system design, development, deployment and support. - High interests in best practices and optimizations of code and database design. - Well-versed in best practices and optimizations of code & database design - Passion for debugging & fixing errors and discovering how technologies work - MCTS for Web Applications Development using Microsoft .NET Framework 4.0 - MCPD Web Developer, MCTS .NET Framework 2.0 Web Applications and MCP

    $11.11 /hr
    56 hours
    4.99
  9. Yuriy A.

    Yuriy A.

    Expert Java Developer (Server Side)

    Russia - Last active: 2 months ago - Tests: 3

    Over the last 8 years, I have developed a wide range of software solutions using JavaSE/JavaEE. Last three years I have been working as Java Expert who helped java-team and QA-team to solve complex problems. Special Skills: 1) Multithreading 2) Integration 3) Improvment/Optimization 4) Jetty/Servlets/HTTP/JAX-RS/JAX-WS 5) JMS (ActiveMQ/Fuse) 6) Hibernate/SQL (MySQL, Oracle, MSSQL) 7) Morphia/NoSQL (MongoDB) 8) SMPP 9) XML/XSLT/JSON 10) HTML Parsers/Spiders/Bots 11) Security 12) JUnit/Mockito/DBUnit/Cobertura 13) Maven/GIT

    $30.00 /hr
    20 hours
    5.00
  10. Ivan L.

    Ivan L.

    Senior Developer (PHP \ SOAP \ WSDL experienced)

    Russia - Last active: 6 months ago - Tests: 3 - Portfolio: 4

    I am a professional in the field of web development with extensive experience in designing websites of varied complexity. The main technologies I use in my work are: PHP – I develop the majority of projects in this programming language. I am well familiar with its structure, advantages, and shortcomings. SOAP – I have used the SOAP and WSDL technologies to develop a number of web services. MySQL – the main DBMS I use in my projects. I am well familiar with the finer points of its setup and implementation. HTML\CSS\Javascript\jQuery\Ajax – I often need to engage in front-end development. Technologies I use less often but have a positive experience with: REST, PostgreSQL, Oracle, RabbitMQ, Google Cloud Messaging (GCM), PHP Yii Framework, Wordpress The most interesting projects I have worked on include: 1) A sports statistics system for the South African Golf Association. For that system, I developed a high load web service by utilizing the SOAP and WSDL technologies 2) Systems for online flight booking for the t3com company. 3) A great number of projects which are smaller in size but no less important to me. In addition to web development, I have experience in creating desktop systems and utilities with the use of such programming languages as C# and Java. I will put in my best effort for solving your problem.

    $17.00 /hr
    578 hours
    5.00