Profile image of repairman4
@repairman4
Flag of United States Rockford, United States
Member since September, 2010
3 Recommendations

repairman4

Primarily skills in performance programming, C++/C, Objective C, Fortran, Parallel Programming, pthreads, GUI development, Cocoa, JNI, and Network programming (TCP/IP, Encryption).Specialize in client/server applications over TCP/UDP sockets, UDP hole punching. Over 25 year experience in these: OS X, UNIX, Linux, Windows, Solaris. Also, specializing in License Management

$50 USD/hr
25 Reviews
5.1
  • 70%Jobs Completed
  • 100%On Budget
  • 97%On Time
  • 3%Repeat Hire Rate

Recent Reviews

  • image of dmlangdonjr Client and Server Network Programming $88.00 USD

    “Excellent work. Everything was delivered on time and exactly how I asked.”

    dmlangdonjr Flag of United States 1 month ago.
    • C Programming
  • image of androidfan1 Port some Linux Code to WIndows $250.00 USD

    “Brillant, Completed in timely fashion and made sure everything was working as it should.”

    androidfan1 Flag of New Zealand 5 months ago.
    • .NET
    • Linux
    • Software Architecture
    • C++ Programming
  • image of fertuser2 modify linux command script.c $277.00 USD

    “If you are lucky enough to have repairman4 bid on your project, you should accept. Excellent communication and will continuously work until all project requirements are met.”

    fertuser2 Flag of United States 1 year ago.
    • C Programming
    • Linux
    • UNIX
  • image of imarotar2 Coding for small process $30.00 AUD

    “Awesome communication. Quality work. Highly recommended. Will definitely rehire in the future. repairman4 went out of his way to to help out and explain the final product. Thanks!”

    imarotar2 Flag of Australia 1 year ago.
    • C Programming
  • image of aldoilsant Compiling an open source command line tool for OS 10.6 (fairly urgent) - repost $45.00 USD

    “Great communication, lightning fast work, friendly and knowledgeable. Great to work with! Definitely rehire again.”

    aldoilsant Flag of Spain 1 year ago.
    • Mac OS
    • Shell Script
  • image of mfurqanbutt Write some Software $35.00 USD

    “Provided a quick and effective solution. I would like to hire again for similar projects.”

    mfurqanbutt Flag of Kuwait 1 year ago.
    • C Programming
    • Linux
    • C++ Programming
    • UNIX
    • Ubuntu

Experience

Owner

Jan 2009

Persistent Security is a software company I started several years ago after developing license software for 20+ years for a private company. My product, SafeGuard LM is the culmination of my work. SafeGuard LM is a great solution for large and small businesses that develop software that needs protecting from casual copying to full blown hackers. It has everything you need out of the box, including a Product Activation Server so you can activate your software over the internet. My passion in developme

Education

Bachelors of Science

1979 - 1984 (5 years)

Certifications

Windows NT Internals (1999)

This was an intensive developer class taught by MS personnel in Redmond Washington. One primary objective was to show how to update running application servers in place without having to shut them down.

Publications

Automatic Software Updates over the Internet

Back in the late 90's I proposed having users installed software automatically updated over the internet. Back then it was a big deal because we were still coming in over dialup lines. None the less, higher speed internet connections were on the rise and I implemented an automatic software update utility that would be able to patch our software over the Internet. Of course, in todays world, this is expected behavior. No one even thinks about it anymore but at the time and with the much slower in

Badges

  • The Prospector

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  • The Enforcer

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  • The Spartan

    Bid on 300 projects.
  • Feedback Guru

    Receive 10 reviews
  • The Regular

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

    Win a project and accept the offer.
  • The Critic

    Post 10 Reviews.
  • Pro-Profile

    Complete your Profile 100%.
  • Smooth Operator

    Complete 10 projects on time.
  • The Economist

    Complete 10 projects on budget.
  • Smart Money

    Create 10 Milestones.
  • Simply the Best

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

    Reach a balance of 5,000 credits.
  • The Adventurer

    Complete your first project.
  • The Biller

    Create an hourly invoice.
  • The Verified

    Verify your payment method
  • All Star

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

    Sponsor 1 bid.
  • Grand Tourer

    Visit all recommended features that Freelancer.com offers
  • The Seeker

    Bid on 20 projects.
  • The Perfectionist

    Edited a bid.
  • The Collector

    Reach a balance of 5,000 credits.
  • Frequent Visitor

    Log in in every day for 1 month.
  • The Spartan

    Bid on 300 projects.
  • Smooth Operator

    Complete 10 projects on time.
  • The Economist

    Complete 10 projects on budget.
  • Smart Money

    Create 10 Milestones.
  • Simply the Best

    Complete 5 or more projects, with a 95% completion rate.
  • All Star

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

    Visit all recommended features that Freelancer.com offers
  • The Prospector

    Post your first project.
  • Fast Responder

    Bid within 2 minutes of a project being listed.
  • The Enforcer

    Reporting a project or contest that violates our terms of service.
  • Feedback Guru

    Receive 10 reviews
  • The Regular

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

    Win a project and accept the offer.
  • The Critic

    Post 10 Reviews.
  • Pro-Profile

    Complete your Profile 100%.
  • The Adventurer

    Complete your first project.
  • The Biller

    Create an hourly invoice.
  • The Verified

    Verify your payment method
  • The Speculator

    Sponsor 1 bid.
  • The Seeker

    Bid on 20 projects.
  • The Perfectionist

    Edited a bid.

Exams

  • Freelancer Orientation
    80%

My Top Skills

  • C Programming 28
  • C++ Programming 12
  • Linux 10
  • UNIX 5
  • Mac OS 4
  • Software Architecture 2
  • Cocoa 1
  • Objective C 1
  • Shell Script 1
  • Computer Security 0
  • Test Automation 0
  • Technical Support 0
  • Cryptography 0
  • Fortran 0
  • Solaris 0
  • Debugging 0
  • Socket IO 0

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