Top Upwork Freelancers

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  1. Aljosa B.

    Aljosa B.

    Senior Linux Administrator

    Bosnia and Herzegovina - Tests: 13

    I’m highly experienced in installing, configuring and maintaining different flavours of Linux, mostly Red Hat, CentOS, Debian and Ubuntu. I also have in-depth knowledge of virtualization platforms such as VMWare(both Workstation and vSphere) and Xen. During my career, I gained extensive knowledge in configuring different services such as configuring Apache and Nginx with PHP to handle high loads (mostly using php as FastCGI), then configuring and maintaining MySQL databases – optimizing, locating slow queries, backups, disaster recovery, etc. I’m also very knowledgeable in configuring Postfix and Dovecot as well as ClamAV and SpamAssasin for fighting e-mail spam and malware. My other abilities include configuring NetFilter firewall, OpenVPN tunnels, SSH, Samba, FTP and Linux kernel tweaks as well as configuring SELinux for enhanced security. My area of interest is also intrusion detection such as detecting web application break-ins by exploiting common flaws such as SQL, command and code injection. Aside from that, I’m also experienced in preventing Distributed Denial of Service Attacks (DDoS) on various services. During my job as IT security stuff i also had much time to work as a penetration tester/ethical hacker. Mostly experienced with Acunetix, Nessus, OWASP, Metasploit , Hydra, nmap and Saint. I’m also familiar with Web Hosting Panels such as cPanel and Plesk. I’m also experienced in installing and configuring popular web applications such as WordPress, Joomla and Drupal to the point of being able to create simple web sites. When it comes to Windows platform, I have extensive knowledge of Windows Workstation OSes and solid knowledge of Windows Server OSes.

    $11.00 /hr
    0 hours
    0.00
  2. Andriy Schudlo

    Andriy Schudlo

    Junior IOS Developer

    Ukraine

    Hi, my name is Andriy Schudlo. In my portfolio, are a few of the apps that I've developed with my team in SoftServe IT Academy. I believe my strong points are my Creativeness and Punctuality. My #1 goal will always be to meet your needs and deadline, and do everything as best as i can . When working on a new project, I like to speak with the client, so that I can have a clear understanding of his/her needs and vision of the project. I'm honest and fair. I have succesfully graduated SoftServe IT Academy. Thank you in advance for your time and consideration. I look forward to working with you soon. I have a master's degree in Economical Cybernetics from Lviv Academy of Commerce , in the Ukraine. Listed below are my experience and skills. — IOS: Foundation, Cocoa Touch, AFNetworking, CocoaPods Frameworks etc; — Java Core: Java Core, Multithreading, Collections API, etc; — API: Facebook, Google+, Google Maps; — Core web: XML, JSON, HTML; — IDE: Xcode; — OS: Linux, Windows, Mac OS X; — VCS: Git, SVN; — Bug/Issue trackers: Jira; — SQL; — HTML

    $3.33 /hr
    3 hours
    0.00
  3. Nguyen Luu

    Nguyen Luu

    QC Lead, IT Admin

    Vietnam - Tests: 2

    I have 8+ years of experience in Software testing.I am self-motivated and willing to work on challenging projects.Worked with different corporations. Now working as Freelancer.I have very good experience in different Testing technologies like Automation Testing(QTP,Selenium, Web driver), Performance Testing(Load Runner and Jmeter),Database Testing,Webservices Testing using SoapUIPro and Maven Tools,Mobile Testing(iPhone,Android,Java,Windows and Symbian platform) and Manual Testing I have good experience in Test Management and Resource Management,etc.

    $7.78 /hr
    0 hours
    0.00
  4. Vitalijs Ozornins

    Vitalijs Ozornins

    Python, Angularjs

    Latvia - Portfolio: 1

    I'm full stack developer with 5 years of experience in Python/Django/Flask and years of JavaScript + CSS. My JavaScript knowledge is mostly in AngularJS and JQuery. And i have almost an year using AngularJS. I'm not an CSS/HTML5 guru but i can transform rather complex design from picture to Html/CSS for modern browsers.

    $15.00 /hr
    0 hours
    0.00
  5. Dragan D.

    Dragan D.

    Drupal Developer,Security Researcher,PHP Developer

    Serbia - Tests: 7 - Portfolio: 1

    During the years of productive work I performed work for customers from USA, Canada, Netherlands, Russia, Australia. Both sides enjoyed cooperation. Over the last 7 years, I have developed a wide range of websites using HMTL, PHP, MySQL. I also have some experience in the following areas: Ajax, OOP and software design and testing.

    $16.67 /hr
    0 hours
    0.00
  6. Alexey Kretov

    Alexey Kretov

    iOS developer

    Russia - Tests: 2 - Portfolio: 2

    I'm a senior iOS developer with extensive experience in building mobile apps. My experiences range from building security mobile frameworks to building mobile banking applications with great functionality. I like working on projects with a team that cares about creating beautiful and usable interfaces. It's important to me to build long term relationships with clients, so I'm primarily looking for long term projects. I'm flexible with my working hours

    $22.22 /hr
    0 hours
    0.00
  7. Hovsep K.

    Hovsep K.

    Senior iOS Developer

    Armenia - Tests: 3 - Portfolio: 2

    Results-oriented and self-organized R&D specialist with six years of experience in software development and research positions. Strong understanding of networking and IT infrastructure based on windows or Unix. Participated and gathered some firsthand experience in software product establishment where I have enhanced the understanding of the goal to create software with the user in mind, creating applications with a useable and intuitive user interface experience. I also understand the importance of creating readable and easily maintainable source code. I am constantly striving to learn new technologies and look to ways to better myself in this rapidly changing industry.

    $20.00 /hr
    0 hours
    0.00
  8. Igor Drankin

    Igor Drankin

    Web developer

    Russia - Tests: 4

    I have solid 2+ yrs of web development experience using Ruby on Rails. I have worked hundreds of hours out side odesk on multiple domains. I can do anything related to rails. I am working in rails from 2012 and worked on high traffic websites and variety of domains like finance, banking and gas... I have necessary experience in web programming. Like Ruby on Rails, HAML, AJAX, JavaScript, etc.

    $40.00 /hr
    0 hours
    0.00
  9. Aleh V.

    Aleh V.

    Software Engineer / Architect / Project Lead / Agile Project Manager

    United States

    Software Engineer with 10+ years of experience. Project Lead / Agile Project Manager with 3+ years of experience. Being originally a back-end developer (hardcore C++ and Java) with strong Computer Science background (BS and MS degrees in Discrete Mathematics), I do not tolerate sloppy or inefficient code. My code is easy to understand and maintain. I do expect a similar approach from the people I work with. Over the last 4 years, I moved into Mobile and Cloud space: Android and Google Cloud Services with most of the technologies sitting nearby or in between (JSON/REST/CRYPTO). The last two years I was a CTO of a Techstars-backed startup. We created a product with a distributed team of engineers. I do know what I do. I like to use git, JIRA and Jenkins but open to all reasonable alternatives. I'm looking for an engineering / architecture work to do. I'm NOT looking for a Project Management role at the moment unless you are willing to pay some crazy money. At the moment, I work as a Senior Systems Software Engineer for Akamai.com. I love my job. My involvement with oDesk is part-time (10-15 hour per week). I do consulting in startup / mobile / cloud areas. I like small to medium projects on the side that involve new and promising technologies and libraries.

    $49.96 /hr
    0 hours
    0.00
  10. Dima Savostianov

    Dima Savostianov

    Software Developer: c#, asp.net mvc, databases

    Russia - Tests: 2 - Portfolio: 2

    Summary - Object Oriented C# Developer; - Over 10 years of web-development experience; - MSSQL, MySQL; - Git / Subversion toolset; - Strong back end developer with wide skill set; - Project management and supervisory experience; - High self-organization and discipline. Professional Web Development / Programming, Web Systems Administration (Windows Server 2003-2012, IIS 6-8), Database Design and Query Optimization, Online Business Development, Marketing and Market Research. Technologies C#, ASP.NET MVC, MSSQL, MySQL, XHTML / HTML, JavaScript, JQuery, Bootstrap, CSS.

    $25.00 /hr
    0 hours
    0.00