Alexander avtomatik

Hi, I'm Alexander (@avtomatik)

I am a Python Software Engineer focused on building backend systems, internal enterprise tools, and system integrations.

My work sits in the intersection of:

I build software that connects systems, automates internal workflows, and supports real production environments in large organizations.

Backend systems and REST APIs
- FastAPI-based services for internal platforms and integrations
- service-to-service communication in enterprise environments
System integration and enterprise workflows
- integration between internal systems and external services
- Registration Authority workflows and certificate-related systems
- X.509 certificate generation and validation for integration testing
Automation and internal tooling
- internal tools for operational teams
- workflow automation for business processes
- production support tooling and debugging utilities
Data processing and ETL workflows
- structured data transformation pipelines
- file-based and database-based ingestion workflows
- reporting and operational data preparation

Languages: Python (primary), Rust (secondary), Bash
Backend: FastAPI, REST APIs, Pydantic, Uvicorn
Data & SQL: PostgreSQL, SQLite, DuckDB, SQL
Data Processing: ETL pipelines, Pandas, dbt (basic usage), Parquet
Infrastructure: Docker, Linux, Git, CI/CD (GitHub Actions, GitLab CI)
Concepts: system integration, API design, production debugging, workflow automation

Lightweight library for text processing and reusable transformation utilities
https://pypi.org/project/textloom/

CLI tool for structured batch file renaming using rule-based transformations
https://crates.io/crates/renamex

Docker-based simulation framework for external systems used in integration testing

Includes:

improving backend system design and reliability
strengthening CI/CD and testing practices
building robust integration and automation systems
expanding understanding of distributed system behavior in enterprise environments

CV: available on request