Top Upwork Freelancers

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  1. Rodney Caston

    Rodney Caston Agency Contractor

    Systems Engineer

    United States - Last active: 1 month ago - Tests: 3

    I have over fifteen years experience in linux systems administration and development, having managed large environments composed of many thousands of systems. I believe I bring with me a valuable perspective on how to provide solutions for efficiently managing extremely large, and distributed environments without scaling headcount. Some of my accomplishments include having built site reliability/network operations centers from the ground up, from the development of the fault and performance management systems to the management of the staff. I have built up and administered large scale email infrastructures which would send and receive millions of emails daily. I have managed datacenter migration projects consisting of thousands of servers running live services. I have extensive experience in the online gaming industry, focusing on adminsitration, server engineering, and DevOps. I have even worked in a creative capacity as a writer and creative designer in the past, having co-created the MegaTokyo™ intellectual properties. Given the variety of roles I've had in my career, I consider myself a jack-of-all-trades. What I enjoy most is being able to provide value to the organizations that I am able to support, regardless of what role that places me in at the time. Specialties: Amazon Web Services, Apache, Backtrack 5, Bind/DNS, Cacti, Chef, Cloud, Drupal, Elasticsearch, Ganglia, Glusterfs, HAProxy, Heartbeat, Kibana, LDirectord, Linux (Ubuntu, Debian, Redhat, CentOS, Kali), Logstash, Memcache, Metasploit, Monit, MongoDB, MRTG, Munin, MySQL Server, Nagios, Netcool, Nginx, Offensive Security, OpenVAS, OpenVPN, OSSEC, OSX, Penetration Testing, Postfix, PowerDNS, Puppet, Ruby, RRDTool, SAN, Samba, Sendmail, Shell Scripting, Splunk, Squid, Syslog, SMTP, SNMP, SSL, Squid, TCP/IP, VMWare, Windows, and Xen.

    Associated with: Caston Consulting LLC

    $91.11 /hr
    1,634 hours
    0.00
  2. Igor T.

    Igor T. Agency Contractor

    FULL STACK EXPERT. 5+ years exp. Live projects

    Russia - Last active: 15 hours ago - Tests: 1 - Portfolio: 2

    I'm a professional web developer with a strong mathematical education. I took 24th place at All-Russian Mathematical Olympiad in 2008. My main principals are: ✓ to keep your deadlines (to be working as much as need if need) ✓ to keep code clear ✓ to keep application stable I was working with enough clients. One of them was a Russian bank(I have developed a security inner system for them). Also I was working with market force international group. I know how to have a professional approach to what I'm doing. And my live projects are evidence that I'm pro and my clients are satisfied. So I'm looking forward new interesting suggestions.

    Associated with: ILike

    $30.00 /hr
    1,503 hours
    0.00
  3. Diego Yungh

    Diego Yungh Agency Contractor

    Frontend Developer

    Brazil - Last active: 15 hours ago - Tests: 2

    I am a very friendly developer with more than 5 years in professional web developing. My strong points are Restful applications, Sockets and Dashboards. From raw JS to full-stack frameworks I can work in any environment, I will learn and adapt my knowledge and tools to your needs or provide you with insight and ideas if you give me the opening to. I am always testing bleeding edge technologies and learning the new resources for the web. It is also my job to be in tune the newest resources.

    Associated with: Yungh's

    $25.00 /hr
    1,779 hours
    0.00
  4. Tika K.

    Tika K.

    Poject Manager

    Morocco - Last active: 11/22/2013 - Tests: 2 - Portfolio: 1

    Over the last 5 years, I have developed a wide range of websites using HMTL, DHTML, PHP, ASP and MySQL, ORACLE including sites for startup companies and small businesses. My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build websites from the ground up for you or your business. I also have some experience in the following areas: SQL, Ajax, VB6, and software design and testing, ERP T24.

    $11.11 /hr
    601 hours
    0.00
  5. Victor Macik

    Victor Macik

    Software Developer

    Germany - Last active: 07/22/2013 - Tests: 1

    Over the last 12 years, I have developed a wide range of websites and backend solutions using Java, C++, PHP, and MySQL including sites for different scales of clients. My core competency lies in complete end-end development of backend solutions, along with turn-key products. Feel free to consult with me on any matter, as I'm working independently I promise to provide help even if you aren't interested in conducting business together - this is just the friendly way.

    $33.33 /hr
    33 hours
    0.00
  6. Syed Atif Shaharyar

    Syed Atif Shaharyar

    Software Developer

    Sweden - Last active: 11/27/2011 - Tests: 1

    I have diverse knowledge and skills of Software Engineering, analysis and development using PHP and Microsoft .Net technologies. I have done BS (Computer Sci., 2006) from Hamdard University, Pakistan and about to complete MS in Software Engineering and Management from Linköping University Sweden and I have more than 2 years of professional experience in Software design and development. Looking forward to have nice and fair business with you...!

    $11.11 /hr
    166 hours
    0.00
  7. Neeraj S.

    Neeraj S.

    Expert PHP/PERL developer with 8 years experience on web applications

    India - Last active: 4 months ago - Tests: 5

    Over the last 8 years, I have customized a wide range of websites using HTML, Javascript, Jquery, PHP, Perl and MySQL. I am seeking opportunities to build and customize websites from the ground up for you or your business. I also have some experience in the following areas: Opencart, OOP, Git, SVN, AJAX, JSON, HTML, CSS, XML , Facebook API, developing crawlers and data mining scripts.

    $6.67 /hr
    39 hours
    0.00
  8. Mike J.

    Mike J.

    7 years experience software engineer, UI, UX and IA expert.

    Sri Lanka - Last active: 2 months ago - Tests: 3 - Portfolio: 4

    Thank you for visiting my profile. **** I have worked for www.mailchimp.com, www.hootsuite.com, www.hubspot.com on UI,UX and IA planning and development. **** I am extreamly professional and highly responsive, keeping highest standard in communication and responsivness. I can guarantee Quality, Scalability, Budget and Deadlines. I have 7 years software engineer experience working mainly as a UI, UX and IA strategist and a developer. My core skills include UI and UX development, CMS integration and programming. Programing Skills - PHP, Rails, Node.js(Javascript) and Golang development. Database Skills - Mysql, Postgres and MongoDB. Designing - Concept building, UX/UX and IA. Q/A - Usability testing, UI/UX testing, User experience testing.

    $22.22 /hr
    210 hours
    0.00
  9. Parveen Kumar Raina

    Parveen Kumar Raina

    Expert Software Developer with Dot Net,C#,ASP.Net, Java and PHP skills

    India - Last active: 4 months ago - Tests: 1 - Portfolio: 4

    I'm a senior Dot Net Developer with extensive experience in building High Quality Sites and Software. My experiences range from building responsive mobile sites that work well cross-browser to building scalable sites for the any industry. I like working on projects with a team that cares about creating beautiful and usable interfaces and having My aim is to deliver software development solutions in excellent quality that will surely satisfy clients which will lead to fruitful partnerships. 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 and am happy to work closely with any existing freelancers you work with. I look forward to hearing from you!

    Groups: Microsoft Certified Professionals

    $15.00 /hr
    21 hours
    0.00
  10. Anishta Vidhushini

    Anishta Vidhushini

    QA- Lead

    Sri Lanka - Last active: 08/05/2014

    • 2+ years of experience in testing of desktop, Native, Web based and client/server applications and enterprise mobile application testing. • Experienced in Manual as well as Performance Testing. • Strong in analyzing the requirements and developing Test Scenarios and Test Cases. • Strong skills in performing GUI, System, Usability, Functionality, Regression, Ad Hoc testing. • Well familiar with testing on Android 2.3 +, iOS 4.1+ and full range of web browsers (IE, Firefox, Chrome, Safari, Chinese browsers- QQ, 360 etc.) across multiple platforms • Proven ability to manage multiple tasks and deadlines. • Proven ability to quickly learn and to work independently as well as a team. •Knowledge and experience in Performance testing tools Jemeter and NeoLoad.

    $8.89 /hr
    81 hours
    0.00