Yevhen Mykytsei

Yevhen Mykytsei

Python Developer
Ukraine
Ukrainian, English

About Me

Python Developer with 1 year of commercial experience in building scalable backend services and designing scalable data pipelines.

Experience

Data Engineer

Growe
Jul 2025 - Oct 2025 · 3 months

Managed pipelines with AWS S3, Athena, Airflow, and DBT.
Improved stability of daily workflows.
Optimized SQL in ETL.
Reduced processing time by approximately 20%.
Added automated data validation.
Improved data quality and reduced manual checks.
Optimized DBT models and added S3 lifecycle.
Reduced storage use and improved performance.
Used Terraform and Terragrunt.
Enabled reproducible infrastructure setups.

Data Engineer

Growe
Jul 2025 - Oct 2025 · 3 months

Managed pipelines with AWS (S3, Athena), Airflow, DBT — improved stability of daily workflows., Optimized SQL in ETL, reducing processing time by ~20%., Added automated data validation — improved data quality and reduced manual checks., Optimized DBT models + added S3 lifecycle — reduced storage use and improved performance., Used Terraform/Terragrunt — enabled reproducible infrastructure setups.

Backend Developer

Startup
Dec 2024 - Jul 2025 · 7 months

Built Celery workers for license validation and usage tracking.
Offloaded heavy tasks and improved API response time.
Implemented WebRTC video chat using aiortc and aioice.
Enabled stable low-latency communication.
Modernized the legacy codebase with tests.
Reduced regression bugs and improved reliability.
Upgraded password security using modern encryption.
Lowered security risks.
Developed a reusable SendGrid email system.
Reduced duplicated logic and sped up new features.
Worked with Agile and CI/CD.
Ensured stable and predictable releases.

Backend Developer

Startup
Dec 2024 - Jul 2025 · 7 months

Built Celery workers (license validation, usage tracking) — offloaded heavy tasks and improved API response time., Implemented WebRTC video chat (aiortc + aioice) — enabled stable low-latency communication., Modernized legacy codebase with tests — reduced regression bugs and improved reliability., Upgraded password security using modern encryption — lowered security risks., Developed reusable SendGrid email system — reduced duplicated logic and sped up new features., Worked with Agile + CI/CD — ensured stable and predictable releases.

Skills

Bootstrap Jira Python GitHub GitLab HyperText Transfer Protocol (HTTP) Object-Oriented Programming (OOP) Redis Stripe CI/CD Docker HyperText Transfer Protocol Secure (HTTPS) Kafka Representational State Transfer (REST) Terraform FastAPI Django ORM Django REST framework SQLalchemy Celery Airflow DBT AWS (S3 Glue Athena) SQL optimization Terragrunt Git Pytest Uvicorn Gunicorn TDD SOLID DRY Agile (Scrum Kanban) TCP/UDP ETL/ELT DWH Data Lake PayPal Telegram API WebRTC (aiortc) SendGrid PyJWT HTML/CSS Pandas Python 3.10+ SQL Django 4+ Alembic PostgreSQL SQLite Agile Scrum Kanban WebRTC aiortc AWS
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