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Sergey TkachST
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Sergey Tkach

@sergeytkach

Implementation and support specialist at Prog4Biz who onboarded BookitLab clients and tested releases for a lab management SaaS platform.

Israel
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At Prog4Biz, I onboarded clients to BookitLab, a lab management SaaS platform used by research institutions worldwide. I handled requirements gathering, configuration, database preparation, imports, and go-live support.

I also reproduced and documented bugs, triaged them into Jira, and performed manual QA and regression testing before releases. I translated client feature requests into Jira stories for the development team.

At Yango Delivery, I led a support team, handling recruitment, training, shift scheduling, and performance monitoring. I established quality control processes and reported on team KPIs, while serving as the escalation point for complex technical issues.

At Yango Market, I supported a newly launched marketplace connecting retail stores with a mobile delivery platform. I managed catalog operations, store-facing support, bug reporting, fraud detection, and order monitoring as part of a cross-functional team.

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