EXPLORE

JavaScript MySQL Perl PHP Python
Profile cover photo
User Avatar

Duc T.

@blueskye

4.6
4

3.9

3.9

83%

Extensive experience with VoIP, Desktop/Web/Mobile application

$20 USD / Hour

・

Flag of

Vietnam (11:38 AM)

・

Joined on May 1, 2007

$20 USD / Hour

・

Thank you for viewing my profile! I am a full stack engineer and joined many projects as leader/manager in 7 years. I have deep experiences in enterprise systems from desktop/web/mobile applications to VoIP / Network infrastructure. I can mange whole project from getting customer’s requirement, feature and technical designing, configuring and maintenance, optimization and improvement suggestion. With 8 outstanding projects (good feedback and short working time) only at oDesk and many more others, I am the most suitable candidate for following specific jobs: - Enterprise VoIP and network system with load balancing and high availability requirement - Enterprise desktop / web / mobile application I am looking for clients that are seeking experience and quality candidate

4.6 · 4 Reviews
Reviews
U

A2billing DIDx API • $600 USD

I prefer to close, and keep my time... this is time wasting...

Former Client (inactive)

Share

D

Asterisk Voice Changer & DTMF Counter • $340 USD

Excellent work, quick turnaround, patient while testing.

Joel L.

@daerimin

•

Flag of

Birmingham, United States

•

16 years ago

Share

User Avatar

Auto Dial a User and Play back a message with asterisk and MS SQL(repost) • $212.50 USD

Blue_Skyes worked quickly and the code was sound. However, I found he could be rather impatient and lost site that I was the customer who was paying him money. I had unexpected major technical issues on my end (firewall and server death that required complete rebuild and replacement) that delayed me in providing all requirements to blue sky in a timely manner. Instead of waiting for me to resolve these issues and catch up on my work, he forced the job into arbitration which solved nothing. While in arbitration the arbitrator had to force him to update the code to run on the server and application version that he had earlier requested of me. He felt this was a "bonus" to me and he could now take it away in retaliation towards me. He did however do the work to the correct version when the arbitrator indicated she would rule against him if he would not. In the end, I resolved all my technical issues and hired an outside tech to assist with the testing. Towards the end Blue sky had a much improved attitude and did a much better job treating me as a customer and completed the job without complaint. Right before completion he even offered to help troubleshoot a problem that turned out to be an error on my techs part. In conclusion, I had a mixed experience that ended on a positive note.

Ryan H.

@scpdc

•

Flag of

Thibodaux, United States

•

18 years ago

Share

S

Simple Asterisk DialPlan • $170 USD

Good work, Will be happy to work with him again.

Dror B.

@samshaar

•

Flag of

London, Israel

•

18 years ago

Share

Certifications

F

Foundation vWorker Member

Verifications

On time

100%

On budget

100%

Repeat hire rate

20%

Registered Users

Total Jobs Posted

Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)

Copyright © 2025 Freelancer Technology Pty Limited (ACN 142 189 759)