Profile image of GandalfTheGrey

Gandalf the Grey

and invite this freelancer
Flag of Poland Katowice, Poland
Member since June, 2007

System and network administrator. Programmer. Data recovery and forensic specialist. Security and performance optimizations of computer systems. Distributed and parallel processing.

5.0 / 5
5.3 / 10

@GandalfTheGrey

  • 100%Jobs Completed
  • 100%On Budget
  • 82%On Time
  • 20%Repeat Hire Rate

Recent Exams

  • Numeracy 1 Top 1%
    100%
  • Freelancer Orientation Top 1%
    100%
  • Employer Orientation Top 1%
    90%
  • Shell Script Top 1%
    95%
  • Subversion 1 Top 1%
    95%
  • General Orientation Top 4%
    85%
  • MySQL Level 1 Top 5%
    85%
  • Unix Level 2 Top 17%
    90%
  • DNS and BIND 1 Top 17%
    83%
  • US English Level 1 Top 28%
    93%
  • openssl 1 Top 50%
    83%

Top Skills

  • Linux
  • System Admin
  • MySQL
  • UNIX
  • Shell Script
  • Web Security
  • Software Architecture
  • Apache
  • Oracle
  • DNS
  • Database Administration
  • Debugging
  • Big Data
  • VPS
  • SQL
  • Verilog / VHDL
  • Computer Security
  • Cloud Computing
  • Software Development
  • Debian

Recent Reviews

  • image of ker09 private project $50.00 USD

    “perfect, thank you!”

    ker09 Flag of Austria 3 weeks ago.
    • Linux
    • Hire me
  • image of aspersica Setup a high volume mail server to work with Sendy [Sealed]

    “Very good communication. Great Expertise. Will hire again for sure.”

    aspersica Flag of Canada 6 months ago.
    • System Admin
    • Linux
    • Web Security
    • UNIX
    • Email Marketing
  • image of ker09 private project about startssl $50.00 USD

    “perfect job done, thanks!”

    ker09 Flag of Austria 7 months ago.
    • System Admin
    • Linux
    • Hire me
  • image of ker09 avoid outlook 2007 complain about self signed certificate $35.00 USD

    “perfect, thanks!”

    ker09 Flag of Austria 8 months ago.
    • Linux
    • Ubuntu
    • Microsoft Outlook
  • image of mikeyconn server administration $200.00 USD

    “This guy is fantastic. He did everything we wanted, really quickly and took care to make sure he looked after our interests. This programmer is added to our birthday party list :-)”

    mikeyconn Flag of Germany 1 year ago.
    • Linux
  • image of flyguye SSL setup for email server & webmail $110.00 USD

    “Right from the start, the freelancer was proactive & his level of English was excellent. This made communicating what i wanted easier & what he conveyed clear. His professionalism is a breath of fresh air & is most definitely welcome here on freelancer where we sometimes end up with a rotten apple that leaves a sour taste in our mouths. He was quick off the mark & pointed out several errors within my server setup as well as scripting, issues. There is no doubt that anyone who hires him will be more than satisfied with his work. Well done Szymon! Would definitely hire again in a heartbeat. Cheers!”

    flyguye Flag of Malaysia 1 year ago.
    • PHP
    • Web Security

Experience

Owner

Nov 2008

Specialist

Sep 1998

Education

technical university graduate

1998 - 2003 (5 years)

Certifications

REGON (2008)

Publications

Thesis

Badges

  • The Cap-tain!

    Reach the level 20 level cap!
  • Millenium Proposal

    Bid on 1000 projects.
  • The Regular

    Log in every day for 1 week.
  • Simply the Best

    Complete 5 or more projects, with a 95% completion rate.
  • Mover and Shaker

    Create 50 Milestones.
  • Nine-to-Fiver

    Win a project and accept the offer.
  • The Spartan

    Bid on 300 projects.
  • Smooth Operator

    Complete 10 projects on time.
  • The Speculator

    Sponsor 1 bid.
  • Fast Responder

    Bid within 2 minutes of a project being listed.
  • Feedback Guru

    Receive 10 reviews
  • Perfectionist

    Receive 5-star ratings in 90% of your completed projects (minimum 10 projects).
  • The Critic

    Post 10 Reviews.
  • The Economist

    Complete 10 projects on budget.
  • Essential Credentials

    Update your account details 100%
  • Pro-Profile

    Complete your Profile 100%.
  • US English Qualified

    Pass the US English Exam (Level 1)
  • Straight A's

    Earned a score over 90% (Minimum 3 exams)
  • High Roller

    Complete a project worth over $500USD (or equivalent) on Freelancer.com.
  • The Collector

    Reach a balance of 5,000 credits.
  • Backup plan!

    Verify a backup payment method
  • Neighbourhood Watch

    Reporting a user who violates our terms of service
  • The Seeker

    Bid on 20 projects.
  • Smart Money

    Create 10 Milestones.
  • Spread the News

    Invite 10 friends to join Freelancer.com
  • All Star

    Receive a 5-star rating for a project.
  • The Adventurer

    Complete your first project.
  • The Perfectionist

    Edited a bid.
  • The Enforcer

    Reporting a project or contest that violates our terms of service.
  • Grand Tourer

    Visit all recommended features that Freelancer.com offers
  • Know-It-All

    Pass a freelancer orientation exam
  • The Verified

    Verify your payment method
  • Millenium Proposal

    Bid on 1000 projects.
  • Mover and Shaker

    Create 50 Milestones.
  • The Collector

    Reach a balance of 5,000 credits.
  • The Cap-tain!

    Reach the level 20 level cap!
  • Simply the Best

    Complete 5 or more projects, with a 95% completion rate.
  • The Spartan

    Bid on 300 projects.
  • Smooth Operator

    Complete 10 projects on time.
  • Perfectionist

    Receive 5-star ratings in 90% of your completed projects (minimum 10 projects).
  • The Economist

    Complete 10 projects on budget.
  • Straight A's

    Earned a score over 90% (Minimum 3 exams)
  • High Roller

    Complete a project worth over $500USD (or equivalent) on Freelancer.com.
  • Backup plan!

    Verify a backup payment method
  • Smart Money

    Create 10 Milestones.
  • All Star

    Receive a 5-star rating for a project.
  • Grand Tourer

    Visit all recommended features that Freelancer.com offers
  • Know-It-All

    Pass a freelancer orientation exam
  • The Regular

    Log in every day for 1 week.
  • Nine-to-Fiver

    Win a project and accept the offer.
  • The Speculator

    Sponsor 1 bid.
  • Fast Responder

    Bid within 2 minutes of a project being listed.
  • Feedback Guru

    Receive 10 reviews
  • The Critic

    Post 10 Reviews.
  • Essential Credentials

    Update your account details 100%
  • Pro-Profile

    Complete your Profile 100%.
  • US English Qualified

    Pass the US English Exam (Level 1)
  • Neighbourhood Watch

    Reporting a user who violates our terms of service
  • The Seeker

    Bid on 20 projects.
  • Spread the News

    Invite 10 friends to join Freelancer.com
  • The Adventurer

    Complete your first project.
  • The Perfectionist

    Edited a bid.
  • The Enforcer

    Reporting a project or contest that violates our terms of service.
  • The Verified

    Verify your payment method