Contact information

You can get this candidate's contact information from https://www.work.ua/resumes/17853435/

Work experience

Python Backend Developer

from 12.2025 to now (11 months)
Insiders, Дистанційно (IT)

Fintech client project - backend platform for payment, transaction, and integration services
• Develop backend functionality for a fintech microservice platform focused on payment processing, transaction workflows, provider
integrations, and internal operational tooling.
• Build and maintain backend services using Python, FastAPI, SQLAlchemy async, Alembic, Pydantic, PostgreSQL, Kafka, Hazelcast, Redis,
and Docker.
• Implement asynchronous service logic and event-driven flows for transaction status updates, internal notifications, data synchronization, and
integration with external systems.
• Refactor infrastructure-level backend components, including distributed caching and connection lifecycle management, to reduce per-request
overhead and improve service reliability.
• Improve observability by adding structured logging, environment-based log configuration, and verification of service logs through
OpenTelemetry and SigNoz dashboards.
• Work with Kubernetes-based dev and stage environments on AWS, including EKS contexts, AWS SSO, Helm configuration, deployment
checks, and containerized local development.
• Write and update pytest coverage for service behavior, notification flows, integration edge cases, and regression scenarios before release
verification.
• Contribute to production-oriented backend delivery through technical analysis, implementation planning, code review feedback, release
preparation, and post-deployment verification.

Backend Developer

from 01.2025 to 11.2025 (11 months)
Sipius, Дистанційно (IT)

Backend development for internal CRM, client-facing portal functionality, and data-driven business workflows
• Developed backend services for internal CRM and client-facing portal systems using Python, Django, Django REST Framework, PostgreSQL,
Redis, Celery, and Docker.
• Designed and implemented RESTful APIs, business logic, permissions, and CRUD workflows for sales, operations, management, and client-
facing use cases.
• Implemented SCD Type 2 data modeling to support historical entity tracking, versioning, and audit-friendly data changes across business-
critical records.
• Built asynchronous background processing with Celery and Redis for scheduled jobs, long-running tasks, notifications, validation workflows,
and data synchronization.
• Developed real-time backend features using WebSockets, including authorization-related notifications and internal system event updates.
• Implemented authentication and access-control flows using JWT, Microsoft OAuth2, role-based permissions, and IP-based restrictions for
sensitive functionality.
• Worked on secure service integrations, including isolated service communication, encryption-based data exchange, and controlled access
between backend components.
• Integrated AI-assisted backend functionality using Ollama in an isolated deployment setup for internal data-processing features.
• Implemented currency conversion logic and related backend workflows for financial/trading portal functionality.
• Wrote unit and integration tests, maintained PostgreSQL migrations, debugged data consistency issues, and worked with CI/CD pipelines and
automated quality checks.

Education

Національний університет "Львівська Політехніка"

Менеджмент, Львів
Higher, from 2020 to 2024 (4 years)

Knowledge and skills

• Організованість
• Python
• Git
• SQL
• GitHub
• PostgreSQL
• Docker
• Знання принципів ООП
• Django
• REST API
• SQLite
• HTML
• CSS
• FastAPI
• Apache Kafka

Language proficiencies

• English — above average
• Ukrainian — fluent