George K.
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George K.

Senior Systems & Network Engineer


Athens, Greece


With over 15 years of experience in the IT field, having worked at some of the most demanding environments as a Senior Unix System administrator (FreeBSD/Linux) and a Security expert. I specialize in complex ISP based *nix installations, corporate Mail servers, large high traffic Web servers, Database servers and large ZFS based storage solutions. I have extensive knowledge in Virtualization technology. I have being involved with various types of Cloud solutions especially with OpenStack and CloudStack and KVM I like to deliver fast results with great quality and I never overcharge my clients.

Work History and Feedback

  • Jul 2013 - Aug 2013

    Help recover sunfire 4100
    George is great.
    5 hours
    $30.00 / hr
    $145.00 earned

  • Feb 2013 - Jun 2013

    Help setting up a Site to Site VPN to forward packets via several remote VPS nodes

    No feedback given

    3 hours
    $25.00 / hr
    $62.50 earned

  • Apr 2012 - Jun 2013

    Coaching to Install and configure Netatalk on Open Indiana and Eon Storage (keywords: unix, solaris, illumos, open indiana, netatalk, afp)
    It's been wonderful working with George. He is knowledgable, efficient, patient and has brought tremendous value to our projects. He has been a true accelerator and has delivered efficient architectures, technical solutions and related implementations to allow us to put in production many critical servers. His communication and collaboration abilities are also a great asset. He is truly a gem and we really advise anyone looking for a highly skilled professional that's efficient and pleasant to work with to hire him.
    85 hours
    $25.00 / hr
    $2,278.49 earned

  • Apr 2013

    Setup AWS production-ready LAMP server
    George is a very knowledgeable, honest and fast contractor. His communications skills and follow-through are excellent. He is highly recommended.
    3 hours
    $25.00 / hr
    $75.00 earned

  • Feb 2013

    Firewall & Security Professional
    Hi, You've done a great job and I thank you for all your work. Went above and beyond expectations. I will work with again and highly recommend to others. Thanks again, Ron
    $138.89 earned
    Fixed Price

  • Feb 2013

    Linux Setup/Dansguardian+Squid
    Very quick and easy to work with. Thanks greatly.
    3 hours
    $25.00 / hr
    $71.00 earned

  • View More (3)

George K. has more jobs to show. Create an account to review them.


Name Score (out of 5) Time to Complete
Virtual Private Network Test 3.10 Top 10% 28 mins
Checkpoint Security Test 2.60 Above Average 19 mins
Internet Security Test 3.50 Top 10% 31 mins
Firewall Concepts Test 3.75 Top 30% 21 mins
Firewall Concepts Test 3.40 Above Average 13 mins
Redhat Linux 9.0 General Test 4.50 Top 30% 18 mins
CISCO Test 3.75 Top 30% 37 mins
Redhat Linux 9.0 Admin Test 3.10 Above Average 31 mins
Unix Test 3.60 Above Average 26 mins
U.S. English Basic Skills Test 4.40 Top 10% 20 mins

Work History

100% Job Success
830 hours worked
27 jobs


Less than 30 hrs/week


Phone Number: Verified

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