Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I am a Senior QA Engineer with 10+ years of experience in manual testing of enterprise systems, web applications, and complex multi-system workflows. I thrive in fast-paced environments and enjoy close collaboration with engineering teams and customers to ensure release quality, production readiness, and successful go-lives. I specialize in end-to-end, integration, and API testing across hybrid (Cloud + On-prem) deployments, data validation using SQL, UAT, and troubleshooting critical issues before go-live. I’m comfortable bridging R&D and customer perspectives to maintain system stability and reliable data flows during migrations and integrations.…I am a Senior QA Engineer with 10+ years of experience in manual testing of enterprise systems, web applications, and complex multi-system workflows. I thrive in fast-paced environments and enjoy close collaboration with engineering teams and customers to ensure release quality, production readiness, and successful go-lives. I specialize in end-to-end, integration, and API testing across hybrid (Cloud + On-prem) deployments, data validation using SQL, UAT, and troubleshooting critical issues before go-live. I’m comfortable bridging R&D and customer perspectives to maintain system stability and reliable data flows during migrations and integrations.

Ekaterina Shirokova





I am a Senior QA Engineer with 10+ years of experience in manual testing of enterprise systems, web applications, and complex multi-system workflows. I thrive in fast-paced environments and enjoy close collaboration with engineering teams and customers to ensure release quality, production readiness, and successful go-lives. I specialize in end-to-end, integration, and API testing across hybrid (Cloud + On-prem) deployments, data validation using SQL, UAT, and troubleshooting critical issues before go-live. I’m comfortable bridging R&D and customer perspectives to maintain system stability and reliable data flows during migrations and integrations.…I am a Senior QA Engineer with 10+ years of experience in manual testing of enterprise systems, web applications, and complex multi-system workflows. I thrive in fast-paced environments and enjoy close collaboration with engineering teams and customers to ensure release quality, production readiness, and successful go-lives. I specialize in end-to-end, integration, and API testing across hybrid (Cloud + On-prem) deployments, data validation using SQL, UAT, and troubleshooting critical issues before go-live. I’m comfortable bridging R&D and customer perspectives to maintain system stability and reliable data flows during migrations and integrations.

Available to hire

I am a Senior QA Engineer with 10+ years of experience in manual testing of enterprise systems, web applications, and complex multi-system workflows. I thrive in fast-paced environments and enjoy close collaboration with engineering teams and customers to ensure release quality, production readiness, and successful go-lives.

I specialize in end-to-end, integration, and API testing across hybrid (Cloud + On-prem) deployments, data validation using SQL, UAT, and troubleshooting critical issues before go-live. I’m comfortable bridging R&D and customer perspectives to maintain system stability and reliable data flows during migrations and integrations.

Skills

Experience Level

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Russian

Fluent

Bulgarian

Advanced

Work Experience

Project engineer / QA (Integrations focus) at DALET Digital Media Systems

January 1, 2014 - January 1, 2026

Lead end-to-end validation of enterprise customer workflows across multiple integrated systems; perform functional, regression, and sanity testing in pre-production and production environments; conduct API integration testing (GraphQL, REST) using Postman; validate hybrid cloud and on-prem deployments; test system integrations and data synchronization via APIs (SOA, REST, GraphQL) including bidirectional data flows; create UAT scenarios based on real customer workflows; lead User Acceptance Testing sessions with end users; support release validation and resolve critical issues before go-live; conduct performance testing to assess stability under load; validate ETL/ELT data flows during integrations and migrations; troubleshoot complex issues using logs, SQL queries, and system analysis; act as a bridge between R&D and customer teams to ensure production readiness and successful go-live under tight deadlines.

Product Owner ( QA Team ) at DALET Digital Media Systems

January 1, 2013 - January 1, 2014

Joined a newly established QA team to define QA processes and coordinate validation activities for enterprise media platform deliveries; performed functional manual testing of new releases and fix packs; defined validation scope based on release notes and customer workflows; owned validation backlog and coordinated testing activities; participated in release scope planning with Product and R&D; configured QA environments from scratch (hardware, Windows servers, Active Directory, storage systems).

QA Engineer at KONTUR

January 1, 2007 - January 1, 2012

End-to-end testing of secure document management systems; functional, regression, and exploratory testing of web applications; validation of business logic and backend processes; security-oriented testing (input validation, script injection scenarios); responsible for test scope definition, test planning, and test case design; contributed to internal test automation tooling (C#, XML/XSLT, JavaScript).