Костянтин

KOSTIANTYN GRECHANIUK
Entry-level Customer / IT Support Specialist | Communication, Jira, Excel & SQL Basics
Kraków, Poland | [відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація»)

SUMMARY

Entry-level Customer / IT Support candidate with strong communication skills, practical experience in structured documentation and regular training in
business analysis, SQL and Excel. Comfortable helping people, clarifying problems, organizing information and working with tasks in a clear and responsible
way. Open to customer support, IT support, service desk and junior support roles.

TECHNICAL SKILLS

Customer & IT Support: User communication, issue clarification, clear written responses, ticket handling basics, documentation, escalation basics.
Business Analysis: Requirements analysis, User Stories, Acceptance Criteria, Use Cases, Mind Maps, backlog basics, basic process mapping.
Data & Excel: Excel, Google Sheets, Pivot Tables, formulas, sorting, filtering, charts, table formatting, basic data cleaning. Technical Tools: Jira,
Confluence, Draw.io, Lucidchart, PostgreSQL, SQLite, DBeaver, pgAdmin, basic Power BI.

PROJECTS & TRAINING

Business Analysis in IT Course | Beetroot Academy | 2025 - 2026 | 4 months RECCY -
marketplace app for buying and selling new and second-hand clothes
• Created documentation for RECCY, a marketplace app, focusing on clear requirements and user flows.
• Prepared user stories, acceptance criteria, use cases, diagrams and backlog structure.
• Used Jira and Confluence to organize project tasks and describe work in a structured format.
• Presented the final project on LinkedIn and practiced explaining technical ideas in a simple way. SQL, Excel & Data Practice | Self-study / Stepik /
Practical training
• Practiced SQL with customer, product and order datasets in PostgreSQL and SQLite.
• Solved tasks using joins, grouping, aggregations, CASE, subqueries, CTEs and basic window functions.
• Worked with Excel tables, filtering, sorting, charts and simple summaries for data understanding.

EXPERIENCE

Administrative / Cultural Department Internship | Remote Internship | 3 months Vinnytsia City
Council / Department of Culture
• Supported routine administrative and documentation tasks for cultural and public-sector activities.
• Organized working materials, structured information and communicated in a professional environment.
• Gained experience in accuracy, responsibility and process-oriented work with documents and tasks.
EDUCATION

Jagiellonian University (Uniwersytet Jagielloński) | 2023 - 2026
Bachelor's degree, Intercultural Relations (Relacje międzykulturowe)
Beetroot Academy | 2025 - 2026 | Business Analysis in IT Course (4 months)

LANGUAGES

Polish: C1 (Advanced / Fluent) | English: B1 (actively improving) | Ukrainian / Russian: Native