Web Mobile Software Dev Freelancers

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  1. Oleh H.

    Oleh H.

    System Administrator

    Ukraine - Last active: 4 days ago - Tests: 6

    I'm a System Administrator with 5 years of experience. Also, I have couple cPanel certificates: https://university.cpanel.net/c-summary.php?code=zzqd-532226 Currently I'm FreeLancer I can very quickly master the new system, suggest some alternative solutions etc. I'm young and experienced Linux Administrator. I can help you with server installation/configuration, recommend some hosting providers etc. I like to learn new technologies or improve my knowledge with old ones. I don't bid projects which I won't be able to complete as others do.

    $22.22 /hr
    786 hours
    4.64
  2. Mario Stipetic

    Mario Stipetic

    UI and UX designer

    Croatia - Last active: 18 hours ago - Tests: 2 - Portfolio: 6

    Strong passion for great quality UI (user interface) and UX (user experience) design. I am specialized in designing MVP (minimum viable product) for iOS iPhone mobile apps, Android mobile apps and web apps. Please contact me for latest works in PDF format that are not listed in my Upwork portfolio. I have 12 years of professional experience in web and mobile design. I obtained masters degree in design of visual communication at Arts Academy in Split, Croatia. Some of design recognition include nomination for "Website of the day" award at awwwards.com – worlds most recognized web design award website. http://www.awwwards.com/best-websites/peaks-digital-agency-template/ Nomination for cssdesignawards.com: http://www.cssdesignawards.com/sites/peaks-digital-agency-template/26739/

    $27.00 /hr
    115 hours
    5.00
  3. Dmytro Dray

    Dmytro Dray

    .Net Developer C#/VB (ASP, Silverlight, WPF)

    Ukraine - Last active: 2 days ago - Tests: 2 - Portfolio: 11

    Over the last 20 years, I have developed a wide range of websites and application and using .NET (ASP.NET + MVC, Silverlight, WPF, WCF). I also used MS SQL and MySQL as database. My core competency lies in complete end-end management of a new website development project, but I also have expirience as a team worker (SVN). I am seeking opportunities to build websites asn applications for you or your business.I also have some experience in the following areas: SQL, SEO, Database optimization, OOP , Social Networks (Facebook APIs, Twitter API, YouTube API) and software design.

    $26.00 /hr
    6,551 hours
    4.87
  4. Eugene Dementiev

    Eugene Dementiev

    *nix geek

    Russia - Last active: 13 days ago - Tests: 7 - Portfolio: 1

    Over the last 10 years, I was working with *nix-like OSes. I started from FreeBSD and OpenBSD, and now I use mostly Gentoo Linux. I have developed a big bunch of parsers/small scripts, configured a lot of different software. I have experience with a few different programming languages, mostly Python and bash. I've tried myself in web development (using flask, mongodb, a little of jQuery, etc). At my main job I work as a DevOps/Systems administrator. I use Ansible, ElasticSearch, Gitlab with Gitlab CI, pacemaker, docker, and many more cool things! I also mentor junior developers. Right now I need some extra money, so I'd love to do the following: 1) Ongoing sysadmin stuff. RAID, gmirror, software installation, compilation 2) Automation tasks with Ansible 3) Work with docker containers, write dockerfiles. 4) Do some Python coding to glue things together I can dedicate a few hours every day with more hours on holidays. I usually work between 7-10am CST (8-11am EST).

    $22.22 /hr
    119 hours
    4.96
  5. Ralf L.

    Ralf L.

    Certified Magento Developer (PHP, Wordpress)

    Germany - Last active: 18 hours ago - Tests: 6 - Portfolio: 4

    http://www.magentocommerce.com/certification/directory/dev/399/ Expertise in Magento/eCommerce Store Development , Extension Plugins Development, 3rd Party Gateway/App/Plugin/Script Integration, PSD to Magento Conversion, Theme Development, Upgrade and Migration, Magento Mobile Development. Working on Magento since first version so know all version as well as ways to customize it. I'm enthusiastic about eCommerce on web. I always code with extending Magento classes and methods rather than hacking its original code which is more standard and extensible way of adding functionality. I always use fully documented way on code and user manual which helps both developers and users to understand features and users. I'm a very good team player and like to solve problem quickly but standard Magento certified way, prompt reply and quick solution for any complex problems regarding eCommerce. My availability is more than 12 hours a day that fits with any time zone and I'm always connect via email so you don't have to wait for my reply. Service Description Magento/eCommerce Development Magento/eCommerce Store Development 1. Magento Extension 2. Plugins Development 3. Custom Magento Development 4. PSD to Magento Conversion 5. Magento Template Design and Development 6. Magento Integration 7. Magento Upgrade 8. Migration to Magento 9. Magento Mobile 10. Store Management Web Development 1. B2B Solution 2. Blogs 3. Forums Mobile Development 1. Android 2. iOS 3. HTML5/CSS3 based Mobile Website Content Management Systems 1. Wordpress 2. Joomla 3. Drupal 4. Elgg Object Oriented Programming/MVC Frameworks 1. Zend 2. CodeIgniter 3. Yii 4. Symfony

    $40.00 /hr
    837 hours
    5.00
  6. Dinishika Weerarathna

    Dinishika Weerarathna

    Software Engineer

    Sri Lanka - Last active: 5 days ago - Portfolio: 6

    Self motivated, punctual, passionate about my work, and keen to progress my knowledge of the ever changing industry I work in. I pay particular attention to detail in my work and take pride in creating the best solutions for the work I am involved in. I have excellent interpersonal skills combined with the confidence and ability to build credible relationships with all levels of management and staff. I thrive on managing high workloads, balancing conflicting priorities and dealing with demanding customers.

    $8.00 /hr
    151 hours
    5.00
  7. Toni Romic

    Toni Romic

    PHP, MySQL, PostgreSQL web and software developer experienced in C

    Bosnia and Herzegovina - Last active: 18 hours ago - Tests: 2

    I have more than 7 years of experience in web development, database design and programming. My experience includes following tehnologies: Programming Languages: PHP (5 years), C (7 years), Java Script and JQuery, AWK Databases: MySQL, PostgreSQL Frameworks: Laravel Content Management Systems: Wordpress Web Servers: Apache, node.js Automation Tools: make, cron Web Services: SOAP, RSS Software Version Control: git Other Web Tehnologies: HTML5, CSS, XML I think that for every problem there is an elegant solution. When I'm working on the project I strive to find that elegant way and to give the code some beauty and robustness to the final product. I enjoy building web sites from the ground up and upgrading existing ones, also making other types of software products like parsers, system utilities and other useful programs.

    $27.78 /hr
    19 hours
    5.00
  8. Sayed Labeed Rushdy

    Sayed Labeed Rushdy

    Web and Data Researcher | Web Development | Python | Django

    Bangladesh - Last active: 11 days ago - Tests: 6 - Portfolio: 7

    As an engineering graduate, I acquired ability to optimize and epitomize an idea into reality. You will benefit from the discipline of collective work ethic with minimal usage of time that leads to constant reshaping of elements in need, just to reach a level of perfection. Some might say I am a perfectionist. From conceptual development of website which requires creative analysis, you will be left satisfied with your project implementation. Your requirements will be analyzed, critically researched to produce the demanded outcome. Whether it is implementing codes on specific framework like Django or getting into nitty-gritty of Web Research, my expertise will serve you on tight schedule with just a slight scratch on your wallet. I have also explored and gained valuable experience in HTML, CSS, PHP, WordPress, Drupal and Object Oriented Programming (OOP). When you have decided, have a look at my profile… you might be surprised.

    $7.78 /hr
    2,145 hours
    4.97
  9. Daniel Yavorovich

    Daniel Yavorovich

    System Administrator

    Ukraine - Last active: 4 days ago - Portfolio: 1

    Operating Systems ● FreeBSD ● Linux Security ● iptables ● openssl ● jail ● clamav ● mod_security ● mod_clamav DNS ● Bind ● PowerDNS (+PostgreSQL / +MySQL) HTTP ● Apache ○ MPM: prefork, worker ○ mod_ssl, mod_php, mod_wsgi ● Nginx ○ Access control ○ Autoindex ○ Fast-CGI ○ uWSGI ○ Proxy ○ Cache ○ SSL ○ upload_progress_module ○ Control panel integration ■ Virtualmin ■ DirectAdmin ■ Plesk Proxy ● squid ○ basic auth ○ transparent proxy ○ cache ● 3proxy ○ http/socks ○ auth Raid ● Linux ○ md(0,1,5,6,10) ● FreeBSD ○ Gmirror / Striping File Systems: ● Ext 2,3,4 ● ReiserFS ● XFS ● OCFS2 ● ZFS (port to FreeBSD) ● CEPH CVS ● SVN ● Mercurial ● GIT ○ GitLab ○ GitoLite Backup ● rsync ● BackupPC ● Bacula FTP ● ProFTPd ● VSFTPD File sharing ● NFS ● SAMBA Control Panel ● Direct Admin ● Webmin+Virtualmin ● CPanel ● ISP-config ● Plesk Automatization ● Puppet ● Saltstack Monitoring ● Zabbix ● Nagios ● Munin ● Monit Network Understanding of theoretical and practical foundations of the networks (Data link, Network, Transport, Application Layers). VPN ● OpenVPN ● PPTP Database (SQL) ● MySQL (+MariaDB, +Percona) ● PostgreSQL Database (NoSQL) ● ElasticSearch ● Riak ● MongoDB ● Cassandra ● Redis Virtualization & Containerization ● KVM ● XEN ● OpenVZ ● LXC ● Docker ● Vagrant Cluster ● DRBD ○ master-slave ○ master-master (+ocfs2) ● Heartbeat ● Pacemaker Development ● actively use: ○ shell (bash, sh) ○ Python ● Frameworks ○ Django ○ Flask ○ Twisted ○ Tornado Cloud Solutions: ● AWS (EC2, S3, CloudFront, Route53) ● DigitalOcean ● RackSpace

    $33.33 /hr
    44 hours
    5.00
  10. Alex Kondratiev

    Alex Kondratiev

    Cloud Servers Expert | Senior Linux Administrator | NginX | AWS

    Ukraine - Last active: 18 hours ago - Tests: 5 - Portfolio: 2

    I am an expert in installation, tuning and optimization of the servers and PHP applications such as Wordpress, Magento, Opencart, Atlassian JIRA, etc. I’m usng NginX and Apache servers. I'm a fan of NginX and expertise in this server. My No. 1 goal is to meet my client’s needs, to do the task in time and of high quality. When I work on a new project, I like to communicate with a client, in such a way I can have a clear understanding of his/her vision of the project. The most frequent issue which I face is tuning of Linux servers optimization on which Wordpress, Magento or OpenCart are hosted. My goal is to achieve maximum productivity of the server and to adjust it so that the content will be delivered with high performance and to make the server handle high load of traffic. I use Memcached, Varnish, w3total cache plugin for WP to improve performance and optimize server. I’ve accomplished some projects the results of which are impressive: the load of one project was 5000 online unique users, and the total of requests in another project was 50000 for 5 minutes. After server optimization I perform load testing using apache benchmark and siege. These utilities give the chance to estimate traffic which the server will be able to handle. I use Amazon Web Services, DigitalOcean or Linode cloud providers and recommend them to my clients. Their servers are rather reliable and fast. I use Postfix or Exim in the bundle with Dovectot as an e-mail server. For Inbox control it is necessary to adjust DKIM and SPF for email. For secure connection - SSL certificates adjustment is essential. Technology Expertise: Operating Systems: Ubuntu, Debian, CentOS, Gentoo, CloudLinux, OpenBSD, NetBSD and FreeBSD Cloud Hosting: DigitalOcean, Linode, SoftLayer Web servers: NginX, Apache Database Servers: Mysql, Percona, MariaDB Mail Servers: Postfix, Exim, Dovecot Stack installation and optimization: Wordpress, Magento, Opencart, PHP and accelerated by Memcached and Varnish Skills in programming and scripting: - Bash Service description: - Linux server administration, problem-solving, performance and upgrades - Amazon Web Services (EC2, Route 53, Cloudfront, RDS, S3, SES) - Server Management for CentOS/Debian/FreeBSD servers on Web-projects based on PHPEmail Server - Nginx install, upgrades, troubleshooting and performance optimization - Apache install, upgrades, troubleshooting and performance optimization - PHP install, upgrades, performance troubleshooting and performance optimization - MySQL install, upgrades, performance troubleshooting and performance optimization - Website migration - LAMP / LEMP speed optimization - Magento speed optimization - Wordpress speed optimization - Joomla speed optimization - Drupal speed optimization - Varnish setup and tuning - Maintenance, configuration, white-listing, spf, dkim, high load delivery etc. - Google page speed, site speed and web server performance tuneup

    $35.00 /hr
    538 hours
    4.98