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

Hi, I'm Ekaterina Shirokova, a Senior QA Engineer / Data QA Engineer with 13+ years of experience working across enterprise systems, web applications, and complex multi-system workflows. I collaborate closely with engineering and customer teams to ensure release quality, production readiness, and successful go-lives, especially in hybrid (cloud + on-prem) deployments. I also have hands-on experience with data validation, data flows, and system migrations. I have led UAT sessions, validated API integrations (REST/GraphQL), performed performance testing, and troubleshot issues using logs and SQL queries. I'm comfortable in fast-paced environments and thrive at bridging R&D and customer needs to deliver stable, scalable solutions.…Hi, I'm Ekaterina Shirokova, a Senior QA Engineer / Data QA Engineer with 13+ years of experience working across enterprise systems, web applications, and complex multi-system workflows. I collaborate closely with engineering and customer teams to ensure release quality, production readiness, and successful go-lives, especially in hybrid (cloud + on-prem) deployments. I also have hands-on experience with data validation, data flows, and system migrations. I have led UAT sessions, validated API integrations (REST/GraphQL), performed performance testing, and troubleshot issues using logs and SQL queries. I'm comfortable in fast-paced environments and thrive at bridging R&D and customer needs to deliver stable, scalable solutions.

Ekaterina Shirokova

QA Engineer, Data Analyst, Data Scientist, +2





Hi, I'm Ekaterina Shirokova, a Senior QA Engineer / Data QA Engineer with 13+ years of experience working across enterprise systems, web applications, and complex multi-system workflows. I collaborate closely with engineering and customer teams to ensure release quality, production readiness, and successful go-lives, especially in hybrid (cloud + on-prem) deployments. I also have hands-on experience with data validation, data flows, and system migrations. I have led UAT sessions, validated API integrations (REST/GraphQL), performed performance testing, and troubleshot issues using logs and SQL queries. I'm comfortable in fast-paced environments and thrive at bridging R&D and customer needs to deliver stable, scalable solutions.…Hi, I'm Ekaterina Shirokova, a Senior QA Engineer / Data QA Engineer with 13+ years of experience working across enterprise systems, web applications, and complex multi-system workflows. I collaborate closely with engineering and customer teams to ensure release quality, production readiness, and successful go-lives, especially in hybrid (cloud + on-prem) deployments. I also have hands-on experience with data validation, data flows, and system migrations. I have led UAT sessions, validated API integrations (REST/GraphQL), performed performance testing, and troubleshot issues using logs and SQL queries. I'm comfortable in fast-paced environments and thrive at bridging R&D and customer needs to deliver stable, scalable solutions.

Available to hire

Hi, I’m Ekaterina Shirokova, a Senior QA Engineer / Data QA Engineer with 13+ years of experience working across enterprise systems, web applications, and complex multi-system workflows. I collaborate closely with engineering and customer teams to ensure release quality, production readiness, and successful go-lives, especially in hybrid (cloud + on-prem) deployments. I also have hands-on experience with data validation, data flows, and system migrations.

I have led UAT sessions, validated API integrations (REST/GraphQL), performed performance testing, and troubleshot issues using logs and SQL queries. I’m comfortable in fast-paced environments and thrive at bridging R&D and customer needs to deliver stable, scalable solutions.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Russian

Fluent

Bulgarian

Advanced

Work Experience

Project Engineer / QA (Data & Integrations Focus) at DALET Digital Media Systems

January 1, 2014 - January 1, 2026

End-to-end validation of customer workflows across multiple integrated systems; validated ETL/ELT data flows during integrations and migrations; functional, regression, and sanity testing in pre-production and production environments; integration testing of APIs (GraphQL, REST) using Postman; validation of hybrid (Cloud + On-prem) deployments across different customer environments; testing of system integrations and data synchronization via APIs (SOA P, REST, GraphQL), including bidirectional data flows; created UAT scenarios; led User Acceptance Testing (UAT) sessions; supported release validation and resolved critical issues before go-live; conducted performance testing to evaluate system stability under load; troubleshooting complex issues using logs, SQL queries, and system analysis; acted as a bridge between R&D and customer teams.

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

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).