Databases & Systems

NoSQL Database Performance Comparison: MongoDB vs Apache Cassandra

Diploma thesis benchmarking MongoDB vs Apache Cassandra on 50M records across three-node Docker clusters, using YCSB and custom Python tests.

SRS Allocator

Secure Redis memory allocator in Ada/SPARK with formal proofs for bounded allocations and deterministic zeroization.

Złote Myśli – Quote Sharing Platform

Full-stack quote sharing platform (PHP + SQL Server) with a 13-table relational schema, user accounts, likes, comments, collections, and an admin moderation panel.

Database & Backend Developer

Warehouse Management System with FIFO/FEFO Batch Rotation

Microsoft SQL Server inventory system for food wholesale using FIFO/FEFO batch rotation, an append-only movement ledger, set-based window-function allocation with pessimistic locking, and immutable trigger-enforced history. Deployed with Docker Compose over ~75,000 seeded records.