Сергей К.

FreelancersСергей Ковальчук

Ukraine Nikolaev, Ukraine
2 years ago
Available for hire Available for hire
registered for 3 years

Specialization

Testing and QA
1436 place out of 1653
HTML/CSS
14091 place out of 14499
Position in global rating 5
  150142 place out of 299353

Skills

Contact information

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