Top Upwork Freelancers

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  1. Justin Tutty

    Justin Tutty

    web development / net presence

    Australia - Tests: 2 - Portfolio: 4

    After graduating in computing, I spent a year developing interfaces and APIs for financial transaction devices in Windows before moving into an area that had more appeal for me : system level communications and messaging, largely focused on a C++ / Unix / Oracle platform. I spent six years mostly juggling messages and communication channels between databases and queues. But I got tired of living in big cities, and hatched an escape plan. I started doing short term contracts for web projects using a range of scripting languages at the server, and AJAX in the browserI began with various short term contracts for web interface development using content management systems and frameworks including Drupal, Django and Node, programming in languages including PHP, Python and Javascript/Coffeescript. I've moved on to building web apps with rich client side frameworks, often with a full javascript stack including mongodb.

    $48.89 /hr
    1,441 hours
    5.00
  2. Norbert V.

    Norbert V.

    C#, ASP.NET MVC, Java, Android, C/C++ developer

    Hungary - Tests: 6 - Portfolio: 9

    I have been developing applications for 4 years in C#, ASP.NET MVC, Android, Java and C/C++. During this time I managed to get skills to write robust and optimal code in these languages and frameworks. I have a deep knowledge in networking concepts, protocols, VoIP technology and different database systems. I have worked with different Linux/UNIX systems and Windows so far. I used design patterns several times in practice, used TDD principles, set up continous integration and builder systems for larger projects. Why hire me: work efficiently, deliver on time, write maintainable code, provide good code analysis, learn new things fast.

    $24.89 /hr
    487 hours
    4.95
  3. Ilya Frolov

    Ilya Frolov

    System Administrator and Web Developer

    Russia - Tests: 7 - Portfolio: 6

    I am java developer and linux system administrator. Have an interest in all kind of web based programming technology like python, ruby, perl. I have ability to create software from abstracts and fundamental algorithm design to deploying on production servers and zooming in business. I am interesting in java, open source, secure networking (SSL and so on), servers maintenance. Prefer full circle development - from idea to full production server support! I like to learn and follow the most modern technologies. I have 3+ year of shared web hosting design and service.

    $16.67 /hr
    77 hours
    5.00
  4. Donald H.

    Donald H.

    Full-stack web developer and Python expert

    United Kingdom - Tests: 6 - Portfolio: 1

    I'm a widely-experienced web developer, and a Python expert with around 5 years' experience using the language. (It's by far my favourite programming language for most tasks!) I'm very familiar with Django and have worked on a wide variety of Django-based sites. I'm currently working part-time for VODO (http://vodo.net), a platform for distributing independent media, where I'm heavily involved in developing the front- and back-end of the site. I'm very well-versed in front-end development; I know my HTML5, CSS, JavaScript (and CoffeeScript!) well and can comfortably and efficiently implement designs from scratch and integrate them with backend code. I'm a fast and enthusiastic learner - I'm currently working on learning Haskell and the fundamentals of functional programming, as well as learning some low-level programming. (I'm really interested in trying out Rust soon!) I'm currently studying Mathematics and Physics at Durham University, in the UK. This means I've had lots of experience with LaTeX and scientific Python, as well as being a fluent user of mathematics. I'd love to take on some projects where I can utilise my mathematical experience!

    $38.00 /hr
    574 hours
    4.98
  5. Pavel M.

    Pavel M.

    QA manager/Team Lead/Senior QA engineer

    Belarus - Tests: 2 - Portfolio: 1

    5 years of experience in software testing and QA management. Familiar with almost all QA methodologies, bug-tracking tools, requirements-tracking tools. Project management environment and QA team can be provided on demand, as well as single QA member. As for now, i believe that QA services will help every company/customer archive their goals with high quality.

    $40.00 /hr
    363 hours
    5.00
  6. Jonas M.

    Jonas M.

    Cloud Systems Architect, Amazon AWS expert, Linux Admin

    Lithuania - Tests: 6

    I'm experienced DevOps guy, Linux Server Administrator (over 9 years) , Cloud based solutions engineer (mostly on Amazon AWS) My experience: Linux based servers solutions SaltStack Infrastructure Automation and Cloud Orchestration Continuous Integration with Jenkins Vagrant, Docker for devs Amazon AWS cloud solutions Migrations to Amazon AWS platform Linux servers setup: Ubuntu, CentOS, RedHat System tasks: administration, configuration, backup solutions, audit, optimization, benchmarking Amazon AWS - running projects on EC2, RDS, VPC, SimpleDB, S3, CloudFront, Route 53 dns, ELB, AutoScaling, CloudWatch, ElastiCache, IAM, SES, SNS services. VPS: Cpanel / WHM / Plesk / DirectAdmin / Webadmin - Migrations, management, hardening, configuration, security maintenance. Backup solutions for AWS, Linux servers VMware (VCP certified) - vSphere ESX servers, vCenter servers, VMware View infrastructure administrator Websites projects running on nginx, apache, mysql, LAMP stack Experience with HPC clusters, HPC management software for Linux systems including multiple Linux operating systems, linking and building libraries Development, testing, stageing environments installation,preparation for production/developement process (svn, git, jenkins, bash scripts, phing) SaltStack, Puppet, Vagrant, Docker Experience with scripting language such as PHP, JS, Bash-Scripting, NodeJS Cloud SaaS services: goolge apps, owncloud Atlassian software installation, setup (jira, confluence) Wordpress, Drupal installations

    $50.00 /hr
    117 hours
    4.75
  7. Valentin G.

    Valentin G.

    Software engineer (C/C++, obj-c, Python, Matlab, R, ML algorithms)

    Belarus - Tests: 7 - Portfolio: 5

    The last 5 years I have worked mostly as a C and C++ developer in a field of process automation and control (SCADA). Familiar with OOP and TDD, Design Patterns and different methods of software development (waterfall, agile). I have a good experience in the development of multithread client-server applications, windows services, dll-s and cross-platform libraries. One of the specific features of my job was writing readable and easy-portable C-code covered with tests.Another interesting feature is working in small groups dealing with frequently changing goals. The major benefit of this style of work is a great experience on all levels of software development process (from project design and requirement development to final tests). Besides, I have a great interest in the research of new technologies and IT science related fields.

    $25.00 /hr
    549 hours
    5.00
  8. Adam Lundrigan

    Adam Lundrigan

    B.Sc; ZCE; 15Y veteran PHP4/5, Zend Framework, HTML, CSS, JavaScript

    Canada - Tests: 4

    Over my 15 years as a computer programmer I've seen it all; from my early days tinkering with PHP/FI right up to the present-day modernity of PHP5.6, two things have been a constant in my career: a dedication to the art of PHP and to the unending enjoyment of programming that accompanies it. Along my winding PHP journey I've picked up a broad base of skills, including HTML, JavaScript, CSS, LAMP server administration, database design, object-oriented design theory, and various SCM/version control systems just to name a few. I've also contributed code, documentation and/or discussion to a number of open-source projects in recent years, primarily within the Zend Framework ecosystem. Despite my love of PHP I am more than just a one-trick pony. I have a Bachelor of Science degree in Computer Science from Memorial University of Newfoundland, with minor concentrations in Mathematics and Economics. My non-PHP skills include some proficency in C#.NET, web-based mobile development (jQmobile, Sencha Touch), NodeJS, Atmel microprocessors, and Java (the subject of my B.Sc work) I am a full-service contractor who will guide you through every stage of your project's evolution, from planning to implementation to deployment and ongoing maintenance. My passion is pulling together my broad-based experience to assist clients in using technology to break down obstacles and help them realize their goals, and make some money while i'm at it ;) My communication channels are always open so if you're interested in chatting with me about a project you've been bouncing around feel free to drop me a message anytime!

    $80.00 /hr
    393 hours
    5.00
  9. Angel Torres

    Angel Torres

    GIS Developer / DBA / SysAdmin / Web Developer

    Mexico - Tests: 2 - Portfolio: 5

    I am a GIS developer expert, using these technologies: Mapserver (maps on the fly), MapScript (PHP, Perl), PostGIS, Arcobjects. NET, GeoServer, GeoTools, GDAL and OGR, and OpenLayers, google maps api, leaflet. I use Front end Technologies such as JavaScript (jquery, require.js, backbone), Adobe Flex, HTML, and responsive framework Bootstrap I have developed applications using various technologies, for Desktop using vb.NET and Web Servers with Linux RHEL, CentOS, Slackware managing services and custom configuration as Apache, Tomcat, Database like PostgreSQL and MySQL, with programming languages ​​like PHP and Perl

    $19.00 /hr
    115 hours
    4.96
  10. Andre Schaan

    Andre Schaan

    Unity3D Programmer

    Brazil - Tests: 1 - Portfolio: 11

    Im a programmer with extensive experience in Unity3D. Developing games along the last five years (Unity3D), im one of the pioneers developing games in Unity3D. My focus today is program 3D/2D games, visualizations and Apps for desktop, web and mobile devices (IPhone and Android). I've participated in more than 15 games projects, including the last work with Unity3D people on Unity3D Bootcamp (release of version 3.0 of Unity3D) http://unity3d.com/gallery/live-demos/index.html#bootcamp. In a game develop i'm know all areas of concerning games: modeling 3D, animation, but today i only just programming games. I work with gameplay, GUI / HUD / (UI) user interface, IA, Physics engines, and all necessary.I develop IA systems with sofisticated algorithms, create great shaders in GLSL, CG and do pos- processing with the best quality in worked games. In short, i try to do games with my best quality, to have satisfied clients! Best Regards, Andre Schaan.

    $27.78 /hr
    36 hours
    4.76