Hi, I’m Cybernetic-Ransomware

aka Aleksander Marszałkiewicz

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👨‍💻 About Me

I’m a Python backend developer focused on building reliable, data-heavy systems and service-oriented architectures.

My work combines backend engineering, data pipelines, and DevOps practices, with hands-on experience in automation and applied ML systems (especially OCR and vision-language workflows).

I have 4+ years of professional experience working with Python, across ERP systems, data platforms, and custom backend services.

Before moving fully into software development, I worked in project management and ERP implementations, which left me with a high tolerance for legacy systems, unclear requirements, and things that “should work but don’t”.

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🚀 Current Focus

• Backend services (FastAPI, Django)
• Data processing & pipelines (Polars, PostgreSQL, TimescaleDB)
• Distributed systems (Celery, Kafka, RabbitMQ)
• Observability & reliability (Grafana, Sentry)
• Automation & ML-assisted workflows (OCR, VLMs)

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🧪 Technologies & Skills

Backend & Programming

• Python (3.12+)
• FastAPI, Django
• Async processing & task queues (Celery)

Data & Messaging

• Polars, Pandas
• PostgreSQL, TimescaleDB
• Kafka, RabbitMQ
• ETL & data warehousing

DevOps & Infrastructure

• Docker, Docker Compose
• Kubernetes (basics)
• Local-first / on-prem environments

ML / AI (Applied)

• OCR pipelines (Tesseract)
• Vision-Language workflows
• LangChain, LangSmith
• Practical integration of LLM/VLM APIs

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🧭 Direction

• Building more robust and observable backend systems
• Moving towards high-performance services (Go / Rust)
• Improving system design under real production constraints

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📫 Contact

• 📧 Email: aleksander.marszalkiewicz@protonmail.com
• 🌐 Business card: https://cr-business-card-single.statichost.page/
• 📄 CV: available on the business site

I prefer concrete problems, clear ownership, and systems that survive contact with reality.