Тетяна

TETIANA MYRONCHUK
DATA ANALYST | POWER BI | SQL
[відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація») | Kyiv, Ukraine

SUMMARY
Technical professional transitioning into Data Analytics, with 4.5 years of commercial experience in QA and 6 years
in .NET development. Experienced in SQL, databases, data validation, requirements analysis, and investigation of
complex issues.
Currently developing hands-on expertise in Power BI, Power Query, Excel, and data analysis, including data
transformation, visualization, and interactive dashboard development. Built a personal Power BI project analyzing
Airbnb listings, hosts, pricing, ratings, and amenities.
Combining strong analytical thinking, technical problem-solving skills, and a solid understanding of software
systems to work with data and turn it into clear, actionable insights.

TECHNICAL SKILLS
Data Analysis & BI
Power BI • Power Query • Data Analysis • Data Visualization • Dashboard Development

SQL & Databases
SQL • T-SQL • MS SQL Server • Data Validation • Data Investigation

Excel & Spreadsheets
Microsoft Excel • Google Sheets

Data & APIs
REST API • Postman • Swagger • JSON

Programming
C# • .NET Core • ASP.NET MVC • Web API

Tools & Collaboration
Jira • Confluence • Git

Methodologies
Agile • Scrum

PROFESSIONAL EXPERIENCE
.NET Developer | Luxoft Feb 2019- Mar 2023
• Implemented new features based on business requirements and technical specifications.
• Developed and maintained ASP.NET MVC and .NET Core applications, including migration from legacy
Web Forms solutions
• Analyzed business requirements and technical specifications to support solution design and
implementation.
• Investigated production issues by analyzing application behavior and identifying root causes.
• Worked with data and databases as part of application development and issue investigation.

• Participated in technical discussions and collaborated with QA engineers and other teams to resolve
complex issues.
• Contributed to unit testing, code reviews, and Agile development processes.

.NET Developer | Unity-Bars Apr 2018 – Jan 2019
• Developed new modules for an automated banking system using ASP.NET MVC and related web
technologies.
• Supported and enhanced existing applications based on business requirements.
• Implemented functionality across backend and frontend layers.
• Worked with databases and application data as part of application development.
• Investigated and fixed application issues.

.NET Developer | Avtologistika, Group of Companies Apr 2017 - Apr 2018
• Participated in development of a web-based information platform for internal company processes.
• Developed administration functionality including users, permissions, and content management.
• Implemented user registration and authorization functionality.
• Developed Web API services for communication between mobile applications and server.
• Implemented new features including user profiles, comments, filtering, and database migrations.

QA Engineer | Estafeta Communication Company Sep 2012 - Mar 2017
• Worked as the only QA engineer on the project, responsible for planning and executing testing activities.
• Analyzed business requirements and created test scenarios for new functionality.
• Validated application data using SQL queries, including JOIN operations.
• Investigated application and data-related issues, analyzed system behavior, and worked with
developers to identify root causes.
• Performed REST API testing using Postman and Swagger.
• Worked with business analysts and product owners to clarify requirements and identify inconsistencies.
• Planned and executed functional, regression, integration, and exploratory testing as the only QA
engineer on the project.
• Documented, tracked, and verified defects using Jira.
• Maintained testing documentation in Confluence.

CAREER BREAK
Parental leave Apr 2023 - Present
• Took a planned career break due to parental leave.
• During the career break, maintained and developed technical skills in SQL, Excel, and data analysis.
• Currently building hands-on experience with Power BI and Power Query, including data transformation,
visualization, and dashboard development.
• Built a personal Power BI project analyzing Airbnb listings, hosts, pricing, ratings, and amenities.

EDUCATION
Zhytomyr State University Ivan Franko
Faculty of Physics and Mathematics
Specialty: Mathematics and Physics

LANGUAGES
English: Intermediate
Ukrainian: Native