Top Upwork Freelancers

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  1. Donovan F.

    Donovan F.

    Cloud Engineer and Linux Expert

    South Africa

    I am an accomplished Systems Administrator with over 13 years professional experience building infrastructure and platforms for small web hosts, the enterprise data center and the cloud. My primary specialties are Linux systems, open source software, and cloud platforms. I began my career integrating Linux systems and varies opensource technologies for Internet Service Providers and Telecommunications providers. I realized that integrating programming/scripting into my skill set would automate and provide easy of implementation to many of my projects. Here is a brief sampling of skills and technologies I am currently (2015) working with: Linux - RHEL, CentOS, Ubuntu, and FreeBSD Datastores - MySQL, PostgreSQL, Memcached, Redis, MongoDB Monitoring - Nagios, Munin, Cacti, Shinken Management - Chef, Puppet Platforms - AWS, Rackspace, OpenStack Frameworks - Rails Lanaguages - Ruby, Python, Perl, PHP SCM - Git, SVN

    $27.78 /hr
    6 hours
    0.00
  2. Natalie Denmeade

    Natalie Denmeade

    Freelance Developer / Admin Gamification, Education, Moodle and GAFE

    Australia - Portfolio: 2

    I work as a freelance educational gamification consultant interested in researching emerging technologies and how gamification can transform traditional assessment and delivery methods to enable higher engagement and completion. My technical experience covers Moodle Learning Management System, Mobile Computing, Google Apps for Education and Web Technologies. My 'Moodle for Motivation Tool Guide' has been distributed widely as a useful tool to promote diversity in e-Assessment using gamification strategies. I also developed an award-winning Moodle course using gamification principles.In 2013 I managed two National VET eLearning Strategy projects that explored mobile learning for Indigenous learners.

    $75.00 /hr
    3 hours
    0.00
  3. Boris Denisenko

    Boris Denisenko

    Senior ASP.Net / C# proffesional developer, ecommerce, EDI/EDIFACT

    Ukraine - Tests: 4

    - More than 8 years experience as professional in information technologies, application development and programming experience. - Experience in development of enterprise applications for USA customers. - Knowledge of trading processes in USA. - Well skilled in database design and system architecture design. - Strong problem-solving, communication and time management skills. - Able to work in group or as stand-alone employee. - Experience in major programming languages, databases, operating hardware and software. - Good attention to details.

    Groups: Coding Champs

    $25.00 /hr
    0 hours
    0.00
  4. Alfredo Solano

    Alfredo Solano

    Database and System Administrator

    United States - Tests: 2

    I am a seasoned database and system administrator with over 20 years of experience. If you're looking for simple stand alone programming or strategic enterprise implementations or anything in between, you've found the right person. I have developed and maintained various applications using Microsoft Access and VBA. I've been fortunate to take part in many enterprise level software implementations including Computerized Maintenance Management Systems (CMMS), Laboratory Information Management Systems (LIMS), Geographic Information Systems (GIS) using ESRI products, and PeopleSoft Systems (HR and FSCM). My part in these projects included both technical and project management duties. On the back end I sized, installed, and configured the UNIX (AIX, Solaris, and Linux) and Windows servers. I installed and configured the Oracle databases for these applications. Oh and of course, production maintenance for all the above is also included.

    $80.00 /hr
    1 hours
    0.00
  5. Maksym Rybalchenko

    Maksym Rybalchenko

    java developer

    Ukraine - Tests: 1

    Hi there. My name is Maks and I am a software developer with a 10 year experience. During all that time I developed a lot of solutions for all kind of businesses from tiny entrepreneurs to large companies. Recently I started developing using java. Now it's my primary technology and I am on my way to achieve great results in this area. Hope my previous experience will be useful for you and waiting for a good cooperation.

    $10.00 /hr
    0 hours
    0.00
  6. Marcelo Silva

    Marcelo Silva

    Business Intelligence Analyst

    Brazil - Tests: 1

    If you need your data moved, your systems integrated, your star models filled or any other kind of data processing using ETL I can help you. MCTS BI since 2008 I work with big telecommunication and energy companies in Brazil. Specialized in data cleansing, fast load processes, great variety of data sources and destinations. I also have some experience in the following areas: C#, Visual Basic, SAP BO and Ultimus.

    $38.89 /hr
    0 hours
    0.00
  7. Brandon Miller

    Brandon Miller

    Principal Software Engineer

    United States - Tests: 1

    I am a highly motivated individual with over 9+ years experience in Software Development and Test Engineering. I have leadership experience and excellent communication abilities. Education-wise, I graduated from one of the nations best ranked universities (San Diego State University) with a BSCS and completed MS CS degree course-work. I have the ability to pick-up new technologies fairly quickly -- I'm a technologist at heart. The bulk of my professional experience, however, has been in developing scale-able web-services (RPC/REST), building test automation and frameworks. No matter the project, there is nothing I cannot accomplish or figure out. I have experience building/testing solutions using the following languages: C++, Perl, Python, Java, and JavaScript. I've used a variety of frameworks, but not limited to Flask, Django, SQLAlchemy, Mojolicious, Spring, CXF, Jersey, Hibernate, etc. I'm familiar with most RDBMS such as MySQL, Postgres, and MSSQL. I've also used many key/value storage systems such as MongoDB and Redis. I have experience on traditional stacks as well as working within/setting up AWS environments. I'm realistic, so we'll make sure we're both on page before beginning any project together and quality isn't a back-burner for me, so you won't get a half-working solution.

    $80.00 /hr
    0 hours
    0.00
  8. Sergey Solonitsyn

    Sergey Solonitsyn

    Senior Python Developer

    Russia - Tests: 4

    I use Test-Driven Development in my work and I love the idea of Extremal Programming. Enthusiastically create with Python, Django. Applied programming or web development. I have long experience of working with PHP, but I'm not going to use it. Usually worked with MySQL, a little bit with PostgreSQL. Confidently use web client technologies such as HTML, CSS, JavaScript. The C language - at the most basic level. That is desirable to understand by any programmer. RegExp. OS: *Unix, MS Windows. Web server: Apache2, Nginx. Version control systems: Git. I'm progressing.

    $22.22 /hr
    0 hours
    0.00
  9. Yuri B.

    Yuri B.

    System Administrator / DevOps

    Russia - Tests: 3

    8+ years of experience in administration and support of high load projects working on Linux and FreeBSD. My best skills: * Deploy and optimization web projects for high load: - Nginx + PHP-FPM + MongoDB + Redis + RabbitMQ + Elasticsearch; - Nginx + Tomcat + uWSGI-Python + MongoDB + Redis; - Nginx + Apache + PHP + MySQL/Oracle Express. * DevOps&CI: Git, SVN, Mercurial, Jenkins CI, Maven, Sonatype Nexus, Jmeter, Puppet. * Monitoring: Zabbix, Munin, Cacti. * Clouds: Amazon EC2, S3, CloudFront; DigitalOcean. * Virtualization: VMware ESXi, KVM, OpenVZ, Xen. * Collection, aggregation, storage statistics, metrics and logs: Kibana, Scribe, Hive, Graphite. * Backups: Bacula. * Process management: Supervisord. * Clusters and DFS: Haproxy, DRBD, Heartbeat, GlusterFS. * SMS gateway: Kannel. * Common stuff: LDAP, Squid, Samba, Iptables, PF, Exim, Postfix, Dovecot, ClamAV, SpamAsassin, PPTP, DHCP, BIND etc.

    $20.00 /hr
    0 hours
    0.00
  10. Oleg Virovkin

    Oleg Virovkin

    QA Automation Engineer

    Ukraine - Tests: 3 - Portfolio: 2

    I am Experienced Test Automation Engineer, which does automation for web products and software (4+ years of working experience). I do it with pleasure, and maximum correctly. Skilled with different types of Automation tools, Methods, Test Plans creation and execution. Also I have experience in developing testing frameworks. Knowledge of Software Engineering process, experience with Client/Server and Web Applications testing, UNIX, theoretical and practical knowledge of different test types, methodologies and process, knowledge and experience with Defect Tracking systems. So after that my job was done, you will have Automation Tests or ready to use Testing Framework, which can help you increase the quality of your project. I believe that automation is fun and easy, and it should be used to make computers cope with routine and boring tasks.

    $16.67 /hr
    0 hours
    0.00