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I'm Tetiana Kolos, a data analyst and QA professional with 6+ years of experience in data analysis and quality assurance. I’ve recently focused on AI/ML tools and embedded systems in automotive and financial sectors, combining testing expertise with data analysis to boost product quality and streamline operations. I have hands-on experience analyzing embedded systems data to identify performance patterns and system anomalies, building dashboards, automating data collection, and applying statistical methods for forecasting and early warnings.…I'm Tetiana Kolos, a data analyst and QA professional with 6+ years of experience in data analysis and quality assurance. I’ve recently focused on AI/ML tools and embedded systems in automotive and financial sectors, combining testing expertise with data analysis to boost product quality and streamline operations. I have hands-on experience analyzing embedded systems data to identify performance patterns and system anomalies, building dashboards, automating data collection, and applying statistical methods for forecasting and early warnings.

Tetiana Kolos

Data Analyst, QA Engineer, Data Scientist, +1

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I'm Tetiana Kolos, a data analyst and QA professional with 6+ years of experience in data analysis and quality assurance. I’ve recently focused on AI/ML tools and embedded systems in automotive and financial sectors, combining testing expertise with data analysis to boost product quality and streamline operations. I have hands-on experience analyzing embedded systems data to identify performance patterns and system anomalies, building dashboards, automating data collection, and applying statistical methods for forecasting and early warnings.…I'm Tetiana Kolos, a data analyst and QA professional with 6+ years of experience in data analysis and quality assurance. I’ve recently focused on AI/ML tools and embedded systems in automotive and financial sectors, combining testing expertise with data analysis to boost product quality and streamline operations. I have hands-on experience analyzing embedded systems data to identify performance patterns and system anomalies, building dashboards, automating data collection, and applying statistical methods for forecasting and early warnings.

Available to hire

I’m Tetiana Kolos, a data analyst and QA professional with 6+ years of experience in data analysis and quality assurance. I’ve recently focused on AI/ML tools and embedded systems in automotive and financial sectors, combining testing expertise with data analysis to boost product quality and streamline operations.

I have hands-on experience analyzing embedded systems data to identify performance patterns and system anomalies, building dashboards, automating data collection, and applying statistical methods for forecasting and early warnings.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Advanced

Work Experience

Data Analyst at Luxoft

December 1, 2022 - December 1, 2022

Analyzed Ford MULTICOMM data logs using SQL and Python, identifying user drop-off patterns and optimizing checkout flow. Built interactive Power BI dashboards to monitor test metrics across platforms (Vector CANoe, TEMPPO, MultiCOMM), improving trend visibility and reducing report preparation time. Implemented predictive analysis using logistic regression on 12 months of TCU test results to forecast component failures. Collaborated with QA, Hardware, and Software teams to standardize test data schemas.

Data Analysis Consultant at Independent Projects

April 1, 2018 - April 1, 2018

Applied data analysis techniques to solve business problems for small to medium businesses: analyzed server performance data for a SaaS startup to identify memory bottlenecks; implemented automated quality control data pipeline using Excel VBA and SQL Server; developed Tableau reporting solutions visualizing CAC, conversion rates, and inventory turnover for an e-commerce client.

Automation Engineer at Luxoft

January 31, 2014 - January 31, 2014

Transformed business requirements into data-driven product strategies and led automation testing initiatives for Audi Diagnostics using IBM DOORS and Lua. Designed CAN bus data extraction system using Vector CANoe APIs and Python to automate collection of diagnostic data from ECU modules during bench testing. Created automated reporting framework in Jenkins consolidating test results from TMS, CANoe, and Python scripts into Excel dashboards. Built requirements traceability in IBM DOORS linking 600+ technical specifications to test cases and CAN signal data, enabling targeted regression testing when ECU firmware updates affected specific vehicle functions.

QA Engineer at SC COFNW

June 30, 2012 - June 30, 2012

Analyzed network quality metrics and managed technical performance monitoring systems. Created SQL queries and analysis procedures to monitor application performance and identify critical defects before production. Implemented data validation procedures for a payment system ensuring transaction integrity across databases.

Project Coordinator at SCCOFNW

December 1, 2024 - December 1, 2024

Systematic data-informed approach to analyze engagement, optimize communication strategies, and create clear reporting to drive continuous improvement. Designed data-driven community outreach programs and created reporting dashboards for engagement analysis. Implemented structured testing approach for outreach communications to analyze response patterns, improving overall engagement strategies.