Viktor S.
Kiev, Ukraine
100%
Job Success
Top Rated
Experienced Full Stack Developer
$34.00/hr
✔ 12+ years of Experience
✔ PHP / JS / MySQL / Symfony
✔ System administration & Troubleshooting
✔ MySQL and MSSQL high performance data schema, transactions, triggers, data processing
✔ OpenCart Expert
✔ WordPress Expert
✔ Google Ads Expert
✔ VoIP, SIP, Asterisk, Free PBX, AMI, .AGI, ARI, CRM/ERP integrations
✔ Telegram API/bots
Work history
Work history
Sites migration to digital ocean
5.00
of 2 reviews
Feb 15, 2024
-
Aug 29, 2024
5.00
"A+++++++ Viktor has been the single best resource we have ever worked with on Upwork. His knowledge is deep and varied. He not only did what we asked but also…
Private earnings
Mysql too many connections
Jun 23, 2024
-
Aug 23, 2024
5.00
Private earnings
30 minute consultation
Aug 16, 2024
-
Aug 19, 2024
5.00
Private earnings
Import customers from old website, fix some issues in the new website
Dec 12, 2023
-
Apr 10, 2024
4.30
Private earnings
30 minute consultation
Feb 2, 2024
-
Feb 14, 2024
5.00
"Viktor was quick to understand our multitude of issues and provided concrete, actionable steps to solve them. I would highly recommend working with Viktor!"
Private earnings
Eventsflip administration
Dec 4, 2023
-
Jan 5, 2024
No feedback given
Private earnings
Need Google Ads Expert to fix: "Disapproved Google Ads: Malicious Software"
Apr 22, 2023
-
Apr 29, 2023
5.00
"He solved the problem with good judgment and knowledge.
I am very grateful for his work."
Private earnings
Fix small error on wp site
Jul 3, 2022
-
Jul 3, 2022
5.00
"This freelancer solved a problem on the server we have been struggling with very fast.
Great job!!
thanks a lot!
Cheers"
Private earnings
Telegram voice SIP gateway
Oct 13, 2021
-
Oct 20, 2021
5.00
Private earnings
OpenCart 3.0.3.2 Support w/ Journal Theme
Feb 20, 2021
-
Mar 26, 2021
No feedback given
Private earnings
Msg service integration
Aug 20, 2024
-
Present
Job in progress
Private earnings
Telegram voice SIP gateway
Oct 20, 2021
-
Present
Job in progress
Private earnings
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Skills
Skills
- Telegram
- Database
- Database Optimization
- Website Optimization
- Ecommerce Website
- Performance Optimization
- Software Architecture & Design
- Telegram API