Web Mobile Software Dev Freelancers

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  1. Daniel Yavorovich

    Daniel Yavorovich

    System Administrator

    Ukraine - Last active: 1 month 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
    40 hours
    5.00
  2. Anton White

    Anton White

    Full stack web developer (python, django, postgresql, javascript)

    Russia - Last active: 1 day ago - Tests: 4 - Portfolio: 2

    Programming experience 20 years, Python 6 years, Django 5 years. My main skill is a deep understanding of customer's business processes in combination with ability to participate in full stack development of the product. I am comfortable working as a member of a team or being a team leader and as an individual too. I have strong experience in different aspects of offline business thats why I understand customer's needs quickly. I enjoy creating responsive, useful and clear pixel perfect interfaces which are easy to understand and enjoyable to operate with. I am a qualified developer of commercial and corporate CRM, ERP and e-commerce systems based on modern tech stack and latest best practicies. I prefer making Single Page Applications based on Backbone + Requirejs + REST API because SPAs are blazingly fast and save a lot of resources on backend servers.

    $33.00 /hr
    72 hours
    5.00
  3. Andriy Surovets

    Andriy Surovets

    Programmer / Developer

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

    I am working as software developer for 7+ years. During this I was working on different projects. My primary tasks were Java development, implementing automated and unit test cases, defining requirements. Experience: 2015.03- 2015.07 Assessment reporting tool(Amplify part of News Corp) Web based assessment tools for schools. Provides wide reports for teachers and parents, what helps track students’ performance. Also it’s supports online access to teachers for creating assessments, also uses different teaching tactics and track educational results. Tools and technologies: Java, Spring MVC, Hibernate, Freemarker, JQuery, SQL Server, Maven, Ant, HTML, CSS, GitHub, JUnit, Jenkins. Role: Java developer,Bug fixing and create new functionality in front-end and back-end. 07.2014 -10.2014 Nextance Trilogy. inc Nextance is a system controls contracts, and the relationships they govern. Improving standardization and control of contracts, as well as gaining visibility into their content, improves the results of any business initiative you have in place today. You can benefit from Nextance Contract Performance Management by improving the standardization, visibility and control of your contracts. Tools and technologies: Java/C# Oracle/AG Tamino XML Server/IBM DB2 XML/XSLT/CSS/JS Role: GUI modifications;Business Logic Modification; Add new functionality,Configurated manager 06.2013 - 07.2014 SmartMix Trilogy. inc Provide development, support, testing and continuous integration of numerous products, which are under development of Trilogy network. Working on investigation and development activities on SmartMix direction. Tools and technologies: Java, CSS, JavaScript ,Microsoft SQL Role: GUI modifications; Business Logic Modification; Add new functionality,Configurated manager 03.2012 - 06.2013 Virtual MGA Virtual MGA has a set of core features that are generally present across all clients. In additional to the core features we also offer some premium features that can be layered on top of the core product. Examples of some of our premium features are: Active Contract Management (the ability to manage various contracts both new and expiring and syndicate transactions across multiple contracts), Active Aggregate Management (setting aggregate thresholds by Zone or County or State or a combination of all these s 06.2011 - 02.2012 Hewlett-Packard Create backend functional for Router and coverage this functional Unit test Tools and technologies: C,Java(JUnit),XML Role: Business Logic Modification; Add new functionality,Write JUnit Test 10.2010 - 06.2011 DCM Trilogy. inc The Versata Distribution Channel Management (DCM) software manages the relationship between financial services institutions and the distributors that sell and service their products. Tools and technologies: Java, JSP, XML, XSLT, CSS, JavaScript and OQL (Object Query Language) PostgreSQL, Microsoft SQL, Oracle, DB2 XML/XSLT/CSS/JS Role: GUI modifications; Business Logic Modification; Add new functionality,Configurated manager 10.2007 -10.2010 Nextance Trilogy. inc Nextance is a system controls contracts, and the relationships they govern. Improving standardization and control of contracts, as well as gaining visibility into their content, improves the results of any business initiative you have in place today. You can benefit from Nextance Contract Performance Management by improving the standardization, visibility and control of your contracts. Tools and technologies: Java/C# Oracle/AG Tamino XML Server/IBM DB2 XML/XSLT/CSS/JS Role: GUI modifications; Busines 06.2006 - 10.2007 Artemis 7 Trilogy. inc Artemis 7 is a web-based investment portfolio management system that supports organizations that wish to implement a top-down management process to optimize the selection and execution of investments. Tools and technologies: Java/AWT, Oracle, Abbot,JUnit Role: GUI modifications; performance tests automation Skills: Programming Languages/ Technologies: * Java,C#,C++,JavaScript,PHP,SQL, XML,XSLT, HTML,CSS RDBMS: * Microsoft SQL Server * Oracle * PosrgreSQL * MySQL Frameworks: * Spring * Hibernate * Struts * JUnit Development Tools: * Eclipse * MyEclipse IDE * NetBeans IDE * IntelliJ IDEA * Tortoise SVN * JProfiler * Firebug * Apache Ant * FindBugs, CheckStyle, Coverage, MI, PMD code quality metrics * Visual Basic Script debugger

    $25.00 /hr
    1,586 hours
    5.00
  4. Sam Nickson

    Sam Nickson

    Usability Consultant and Conversion Specialist

    United Kingdom - Last active: 2 days ago - Tests: 3 - Portfolio: 2

    WHO AM I? I am Samuel and I work for a digital marketing company that specialise in conversion rate optimisation and I am the usability expert. I review websites (often for SME's) and produce professional audits (video screen recording, commentary, written report) that have helped hundreds of website owners boost sales. You can find out more about me here: http://www.usabilityaudits.co.uk/about-me *** 55% of visitors spend less than 1 minute on a website! *** - Poor navigation, too much text, poor typography and poor page layout are just some of the many causes of friction I will review YOUR website rigorously and give YOU a list of recommendations that will be straightforward, quick to implement and will increase YOUR online sales If your site converts 5 in 100 visitors and changes I recommend make that 6 in 100 then your online sales increase by 20% Conversion rate improvements of 50-100% are not unheard of, 20% is common. MY METHODOLOGY I have a whole range of tools I can implement to test a website, here are a few: The 5 second test involves looking at your site with 'fresh eyes' looking away and recalling what I remember. Was it clear what the service on offer was? What were my first impressions? This is key to bounce rates. Product and checkout page analysis is essential for conversion rates. And dummy purchases can highlight other usability issues. - Plan the Audit / Review of your website (tailored to your website / needs) - Produce an edited and professional usability video (short sample - http://bit.ly/1ywAqTU) - Produce a written report (with screenshots and callouts) - Email and upload it to your email * You will be left with constructive objective feedback plus suggestions and examples of where you can improve your website* I WILL make sure YOU are 100% happy. https://twitter.com/UsabilityAudit https://www.youtube.com/watch?v=mCvkekFzy5g 07535334094 usabilityaudit@gmail.com

    $55.00 /hr
    27 hours
    5.00
  5. Prabhu J.

    Prabhu J.

    Expert SAP HANA Developer

    India - Last active: 15 days ago - Tests: 1

    Software Developer with 2.5 years experience in SAP HANA, SAPUI5, Javascript and JAVA. I am a developer having working experience in SAP HANA and SAPUI5 and also a trainer for SAP HANA Development Basics. I have advanced skills in HANA Modeling, SQLSCRIPT, XSJS, SAPUI5. I have completed my Bachelor of Engineering in Computer Science degree in 2012. I have also worked on developing APIs using Express.js, nodejs and MongoDB.

    $20.00 /hr
    44 hours
    5.00
  6. Eng.ahmed Mosad Moka

    Eng.ahmed Mosad Moka

    Electronics engineer and embedded system developer

    Egypt - Last active: 1 day ago - Tests: 2 - Portfolio: 7

    - five years of experience in the field of embedded system design - good experience in different microcontroller vendors - embedded c coding for different microcontroller (arduino , avr , pic , arm ,) -. 4 years experience if filed of FPGA developing using ( vhdl , verilog ) here you can find sample of my work on my you tube channel: https://www.youtube.com/channel/UCUw4Ouy6XlsT8T-WLyq_PCg/videos mail : moka8518@gmail.com skype name : ahmed.mohamed6065

    $15.00 /hr
    36 hours
    4.94
  7. Rashid Bilgrami

    Rashid Bilgrami

    Sharepoint & Dotnetnuke Developer

    Saudi Arabia - Last active: 2 days ago - Tests: 1 - Portfolio: 6

    Over the last 12+ years of experience in SharePoint, Dotnetnuke & Microsoft .net Platform, I have developed a wide range of websites & complex web applications including sites for small businesses to enterprise application. My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build websites & complex solution from the ground up for you or your business. I also have some experience in the following areas: SQL, Ajax, OOP, and software design and testing.

    $38.89 /hr
    147 hours
    4.94
  8. Roland S.

    Roland S.

    PHP programmer experienced in Zend Framework, CMS

    Serbia - Last active: 4 days ago - Portfolio: 29

    I'm a web developer in Serbia with 6 years of experience in the industry. I was worked in older frameworks, but nowadays I work with Zend Framework on a large scale web applications. When i have free time i develop my Cms with Zend Framework which I use as a core in my projects.

    $20.00 /hr
    1,702 hours
    5.00
  9. Krasimir H.

    Krasimir H.

    Expert Project Manager and Web Developer

    Bulgaria - Last active: 2 days ago - Tests: 4 - Portfolio: 2

    I've worked as a Web developer (mostly in PHP 5/MySQL although I started in Perl and I've also done some Ruby on Rails) since 1999 (yes, there was a World Wide Web back then) but I've been a project manager in the past years. I'm looking for some extra work so I can keep my development skills in shape (and because I still love programming).

    $44.44 /hr
    433 hours
    5.00
  10. Kimani W.

    Kimani W.

    Expert Web developer with great backend and frontend skills

    Jamaica - Last active: 8 days ago - Tests: 4 - Portfolio: 3

    I am an expert developer with over 4 years professional web development experience. I have a deep interest in designing polished, secure, efficient, and user friendly web applications. I am knowledgeable about the different layers of the web stack, best practices, and current technologies such as HTML5, Ajax, REST, and NoSQL.

    $33.33 /hr
    1,088 hours
    4.99