Vadym

VADYM TIRON
PYTHON DEVELOPER

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SUMMARY
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Backend Python Developer with 2+ years of commercial experience.
t.me/vadymtiron
Built production REST APIs with FastAPI, worked on database-heavy
LinkedIn systems and ETL pipelines processing large datasets. Strong SQL
skills (complex, deeply nested queries, performance tuning) with
Github
PostgreSQL and MS SQL. Hands-on experience with Docker, async
Kyiv, Ukraine processing, background jobs. Familiar with CI/CD (GitHub Actions)
and AWS.
Ready to work remotely

SKILLS EXPERIENCE
Data Factory, March 2024–Present
Backend / Languages
Technologies: Python, FastAPI, SQLAlchemy, Pydantic,
Python
MS SQL, Postman, Notion
FastAPI
Django ORM, DRF
Responsibilities:
Extended FastAPI-based production APIs, adding new
Databases
endpoints and business logic for existing clients (MS
PostgreSQL
SQL, SQLAlchemy).
MS SQL
Engineered ETL pipelines that processed and
synchronized over 100k+ records monthly into MS SQL.
ORM / Data
Improved data ingestion speed by 3x by implementing
SQLAlchemy
multi-threading and batch processing for I/O-heavy
Pydantic workloads.
Optimized complex SQL queries and subqueries,
Async / Background reducing API response time by 30-40% for data-heavy
Redis endpoints.
Celery Developed standalone microservices based on existing
database schemas.
DevOps / Infrastructure Applied complex business logic and transformations,
Docker including payment calculations, contract intersections,
GitHub Actions (CI/CD) client document statuses, and military info.
AWS Collaborated with production teams to deliver reliable
solutions in live environments.
API / Tools
Swagger (OpenAPI)
Postman
EDUCATION
Version Control
BACHELOR’S DEGREE IN JOURNALISM
Git, GitHub
National Technical University of Ukraine "Igor Sikorsky Kyiv
Polytechnic Institute"
Languages
English — Upper-Intermediate 2019-2023