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Alexander Merkulov

and invite this freelancer
Flag of Ukraine Kiev, Ukraine
Member since April, 2007

We are working with asterisk more then 15 years. Have only linux admins with 20+ years experience in team and asterisk expert with at least 10 years of extensive DEVELOPMENT work. Our primary services are voip systems design , billing for VOIP, web for voip/reporting interfaces. We have done some autodiallers, proved we can do complex modules for freepbx/trixbox, we have a2billing contributors in team. Also we have experience with multi-server voip clusters end virtualized voip services,including ones in amazon ec2. -small and large VOIP system based on SIP protocol -general voip architecture design -web and billing for voip -support for asterisk, freepbx/trixbox and a2billing, openser/kamailio/opensips. -modules and addons for asterisk, freepbx, a2billing -load balance using openser/kamailio/opensips -virtualization with openvz, xen, amazon ec2 service. -support for linux systems and supply services for voip. -create network storage clusters, mysql replicated setup, mysql-clustered experience -per hour support and consulting for all above every finished project have free limited 10 day support&bugfixes. note, we have very few aborted projects, most of them from client side. We have NO "work-in-progress-forever" list like alot of users have. so completion rate is REAL. Only thing we not do is graphical design work, we are sorry but it is hard to be proffessional in voip and design in same time. We are choosing be best in VOIP

4.9 / 5
8.3 / 10

@meral

  • 87%Jobs Completed
  • 99%On Budget
  • 98%On Time
  • 19%Repeat Hire Rate

Recent Exams

  • Unix Level 1 Top 1%
    100%
  • General Orientation Top 1%
    90%
  • Numeracy 1 Top 3%
    98%
  • Freelancer Orientation Top 7%
    75%
  • SQL Level 1 Top 36%
    83%

Top Skills

  • Asterisk PBX
  • Linux
  • PHP
  • VoIP
  • MySQL
  • Software Architecture
  • System Admin
  • Engineering
  • Script Install
  • Software Testing
  • Perl
  • Project Management
  • C Programming
  • Windows Desktop
  • Website Design
  • SQL
  • Audio Services
  • AJAX
  • Python
  • Amazon Web Services
  • HTML
  • XML
  • Web Security
  • UNIX
  • Javascript
  • Apache
  • Wireless
  • Cloud Computing
  • Cisco
  • C++ Programming
  • Telecommunications Engineering
  • Database Administration
  • Electronics
  • Computer Security
  • Magento
  • Delphi
  • SEO
  • Accounting
  • Customer Support
  • Algorithm
  • Troubleshooting
  • Freelance
  • Microcontroller
  • User Interface / IA
  • Statistics
  • Google App Engine
  • Paypal API
  • Electrical Engineering
  • Test Automation
  • Technical Support
  • DNS
  • Project Scheduling
  • Mathematics
  • jQuery / Prototype
  • Arduino
  • Brain Storming
  • Debugging
  • Russian
  • VPS
+ show more

Recent Reviews

Experience

master voip developer

Mar 2003

voip developer,work as freelancer.

voip developer

May 2000 - Mar 2003 (2 years)

created billign system for voip, voip support cisco/asterisk

Education

Specialist

1999 - 2004 (5 years)

Certifications

CISCO CERTIFIED NETWORK ASSOCIATE (2006)

Cisco network level basic certification

Publications

articles about voip

FAX/help for begiiners

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  • Mover and Shaker

    Create 50 Milestones.
  • The Collector

    Reach a balance of 5,000 credits.
  • Warren Buffet

    Complete a project worth over $1000 USD.
  • The Achiever

    Accept 50 projects.
  • The Cap-tain!

    Reach the level 20 level cap!
  • The Multi-tasker

    Complete 40 projects.
  • The Spartan

    Bid on 300 projects.
  • Simply the Best

    Complete 5 or more projects, with a 95% completion rate.
  • Smooth Operator

    Complete 10 projects on time.
  • The Economist

    Complete 10 projects on budget.
  • Smart Money

    Create 10 Milestones.
  • High Roller

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

    Receive a 5-star rating for a project.
  • Neighbourhood Watch

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

    Log in every day for 1 week.
  • Fast Responder

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

    Verify your payment method
  • Nine-to-Fiver

    Win a project and accept the offer.
  • The Giver

    Award your project to a Freelancer.
  • The Investor

    Post a featured project.
  • Pro-Profile

    Complete your Profile 100%.
  • The Critic

    Post 10 Reviews.
  • Feedback Guru

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  • The Enforcer

    Reporting a project or contest that violates our terms of service.
  • Insta-Hire

    Use Hire Me to employ a Freelancer.
  • The Seeker

    Bid on 20 projects.
  • The Adventurer

    Complete your first project.
  • The Perfectionist

    Edited a bid.