I build internal systems, automation pipelines, and backend platforms that turn complex business processes into safe, reliable, and scalable workflows. My work reduces manual errors, accelerates operations, and ensures production data integrity.
I primarily work in Python, using FastAPI and Django, while exploring Rust, Go, and Java to broaden my toolkit and improve system performance.
- Data reconciliation and controlled execution pipelines: CSV → staging → dry-run → approval → production execution
- Automation workflows that enforce operational correctness and reduce production risks
- ETL and data pipelines for analytics, reporting, and operational monitoring
- Backend APIs and internal platforms integrating databases, services, and workflow approvals
Focused on delivering real-world impact rather than just code elegance
- Languages: Python3 (primary), exploring Rust, Go, Java, Bash
- Frameworks / Libraries: FastAPI, Flask, Django, Django REST Framework, Pydantic
- Data & Analytics: Pandas, Polars, DuckDB, dbt, SQL
- DevOps / Automation: Docker, Docker Compose, GitHub Actions, CI/CD basics
- Databases: PostgreSQL, SQLite, DuckDB
- Concepts: Workflow automation, data reconciliation, operational safety, production correctness, API design
- Designed controlled workflow: CSV → staging → dry-run → Excel approval → production execution
- Reduced manual errors by ~90%, saving ~10 hours/week of reconciliation work
- Implemented optimistic concurrency, error tracking, and batch execution flags to safeguard production
- Developed ETL pipelines with dbt and DuckDB for analytics and reporting
- Automated reporting workflows, replacing error-prone manual processes
- Built REST APIs with FastAPI, integrating multiple databases and external services
- Delivered pragmatic solutions for operations teams, balancing automation with human approvals
- Strengthening testing, observability, and CI/CD workflows
- Expanding workflow automation and operational tooling
- Exploring asynchronous Python frameworks, Rust, Go, and Java for high-performance systems
- Internal systems, workflow automation, and operational tooling
- Data reconciliation and safe execution pipelines
- Backend/API development and integration
- Data pipelines and analytics for business-critical operations
- Email: extroper@yandex.ru
- Telegram: @Grey_Machine
- LinkedIn: alexander-mikhailov-pro