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VADYM TIRON
PYTHON DEVELOPER

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