Ksenia Sergeeva
@kseniasergeeva1
I test and analyze fintech payment systems, turning complex requirements into reliable, validated product behavior.
ZimbabweWhat I'm looking for
I'm currently contributing to fintech features at IT_ONE, including account restrictions, balance calculations, reporting, and banking transaction flows.
I translate business requirements into functional specifications, uncover gaps and edge cases in complex logic, and document processes and requirements in Confluence. I design test scenarios from analysis, validate APIs and data with Postman and SQL, and work closely with stakeholders to improve system behavior.
At Bell Integrator, I've tested account-management, transaction-processing, and financial-data systems. My work includes regression, integration, release, and production validation testing for high-load systems, along with REST API, JSON, and backend data validation.
I also bring web testing experience from EF Education First, where I identified usability, content, navigation, form, and cross-browser issues in internal learning tools. I'm interested in remote fintech, Web3, and international product opportunities.
Experience
Work history, roles, and key accomplishments
QA Engineer / System Analyst
IT_ONE
Feb 2024 - Present (2 years 6 months)
Participated in analysis and implementation of fintech features related to account restrictions, balance calculation, and reporting. Analyzed business requirements, documented processes, and performed API testing and SQL validation.
QA Engineer / System Analyst | Fintech & Payments | API, SQL, Business Analysis
Feb 2024 - Present (2 years 6 months)
– Participated in analysis and implementation of fintech features related to account restrictions, balance calculation, and reporting
– Analyzed business requirements and translated them into functional specifications
– Identified gaps, inconsistencies, and edge cases in complex business logic
– Collaborated with stakeholders to clarify requirements and improve system behavior
– Documented
– Tested complex fintech systems related to account management, transactions, and financial data processing
– Designed and executed test cases, test scenarios, and performed regression and integration testing
– Performed API testing using Postman (REST APIs, JSON)
– Wrote SQL queries for backend validation, data analysis, and troubleshooting
– Identified bugs, inconsistencies, and edge cas
– Conducted English language lessons for students with different levels
– Tested internal web platform and learning tools, identifying usability issues and content errors
– Performed manual testing of website functionality (navigation, forms, user flows)
– Reported bugs and inconsistencies to the team and suggested improvements
– Checked cross-browser behavior and basic UI consistency
–
Education
Degrees, certifications, and relevant coursework
Sarsen Amanzholov East Kazakhstan State University
Bachelor's Degree, Teaching English as a Second or Foreign Language/ESL Language Instructor
2006 - 2008
Sarsen Amanzholov East Kazakhstan State University
Specialist, Tourism
2001 - 2005
Tech stack
Software and tools used professionally
Availability
Location
ZimbabweAuthorized to work in
Job categories
Skills
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