Contact information

You can get this candidate's contact information from https://www.work.ua/resumes/20519758/

Work experience

Independent Backend Engineer

from 11.2025 to now (1 year)
R&D, Дистанційно (IT)

Self-directed engineering and applied-AI upskilling between full-time roles.
Designed and shipped to production a distributed data-collection platform in async Python 3.11 (SQLAlchemy 2, Playwright):
four resilient scrapers gathering ~44,000 records with field-level change tracking, cross-language entity normalization and
deduplication.
Built a Telegram search bot (aiogram 3) with full-text search, filters and de-duplicated subscription delivery, plus a Django 5
admin over an Alembic-owned schema.
Owned the full DevOps loop: Dockerized services, APScheduler cron, GitHub Actions CI (ruff / black / mypy / pytest) and one-
command deploy to a hardened VPS (Caddy TLS, secret admin path, Basic Auth, log rotation).
Stack: Python · asyncio · SQLAlchemy 2 · Playwright · PostgreSQL 16 · aiogram · Django 5 · Docker · GitHub Actions

Senior Backend Engineer

from 04.2020 to 09.2025 (5 years 6 months)
Verme, Дистанційно (IT)

Core contributor (5+ years) to a 220k-LOC Django workforce-management platform (57 modules, 700+ models) used by dozens of
enterprise clients to plan and account for 50,000+ employees — shift planning & scheduling, timesheets, demand forecasting,
outsourced-staff and labour-cost management.
Designed and evolved the Django REST Framework API (v1 → v2), including authentication and enterprise SSO — SAML,
OAuth2/OIDC and JWT — token/session auth, secure password-reset flows and a granular access-control / permission layer.
Built the timesheet & labour-law compliance engine: worktime accounting and configurable violation rules (monthly hour limits,
HR-document handling, biometric checks) driving payroll-grade calculations.
Designed a universal JSON-based filtering and visualization engine that auto-generates filters, renders arbitrary objects in the
admin, and returns standardized responses reused across all modules.
Architected a client-extension framework with a module composer, enabling safe, isolated client customizations without modifying
the core codebase.
Led the complete redesign of the next major version of the core application — an enhanced API layer and numerous client-oriented
extension points — and profiled critical user-facing endpoints, delivering 10–100× speed-ups (up to three orders of magnitude)
with advanced PostgreSQL (CTEs, triggers) and reusable managers / querysets.
Delivered dozens of complex Celery background tasks and platform enhancements that accelerated client-specific functionality
while maintaining high reliability and regulatory compliance.

Senior Python Developer

from 06.2019 to 03.2020 (10 months)
Fashion Port, Дистанційно (IT)

Enhancement and support of a high-traffic B2B e-commerce platform and supplier portal.
Designed and implemented a secure payment-system integration enabling seamless transaction processing.
Built a supplier notification system that improved operational coordination and reduced manual communication; delivered
multiple feature and stability improvements supporting continued platform growth.

Knowledge and skills

• Git
• Python
• SQL
• REST API
• Docker
• Django
• Celery
• PyTest
• Apache Airflow
• Kubernetes
• PostgreSQL

Language proficiencies

• English — average
• Ukrainian — fluent

Additional information

Senior Python Engineer with 10+ years designing and maintaining reliable backend systems for product companies. Deep expertise in
Python, Django, Django REST Framework, Celery and PostgreSQL. I take ownership of architectural decisions, lead
product improvements, reduce technical debt step by step, and carry solutions from initial idea to stable production. Most recently I
delivered an async data-collection and Telegram-bot platform end-to-end (Playwright, SQLAlchemy 2, Docker, CI/CD) and moved
into applied AI / RAG. Comfortable owning architecture end-to-end and profiling performance under real production load.

Telegram: @bo0ka GitHub: github.com/boooka