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Focusing
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Focusing
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Achievements

Achievement: Pull Sharkx2Achievement: Pair Extraordinairex3Achievement: Galaxy Brainx4Achievement: YOLOAchievement: Public SponsorAchievement: Quickdraw

Achievements

Achievement: Pull Sharkx2Achievement: Pair Extraordinairex3Achievement: Galaxy Brainx4Achievement: YOLOAchievement: Public SponsorAchievement: Quickdraw

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milekv/README.md

Miłosz Kordziński - Software Engineer focused on backend, databases and developer tools

Portfolio  •  LinkedIn  •  Repositories

I build backend systems and developer tools around SQL and data-heavy workflows. My recent work includes static SQL analysis, PostgreSQL schema tooling, an Oracle transaction system and a controlled text-to-SQL pipeline.

Featured project

SQL Atlas

Deterministic SQL analysis across the terminal, pull requests, VS Code and the browser. One shared TypeScript core powers the published npm CLI, GitHub Action annotations, editor diagnostics and the interactive web application.

  • Rule configuration, repository policies and inline ignores
  • PostgreSQL-aware scanning plus EXPLAIN JSON and schema tooling
  • Text, JSON, Markdown and SARIF output
  • Tested CLI, GitHub Action and VS Code integration

Live app | npm | Marketplace | VS Code

Selected systems

Ask Database

A schema-aware text-to-SQL system built around PostgreSQL, Fastify and controlled model output. The backend retrieves relevant schema context, ranks relationship paths and validates generated SQL in Safe Mode.

Static demo

VisualDB Studio

A local PostgreSQL schema designer with React Flow relationship editing, deterministic validation, schema scoring and DDL generation.

Live app

OraBank

An Oracle SQL and PL/SQL reference system covering transaction consistency, deterministic row locking, savepoints, auditing, Scheduler jobs, privileges and recovery runbooks.

Technical walkthrough

Engineering focus

Backend application design, relational data modelling, SQL analysis, automation and tools that keep system behaviour visible and testable.

View portfolio

Open source

Both changes were merged into the upstream project. I focus external contributions on reproducible behaviour, implementation and regression tests.

Core stack

TypeScript Node.js PostgreSQL Oracle Fastify Docker GitHub Actions

Pinned Loading

  1. sql-atlas sql-atlas Public

    Local SQL analyzer for CLI and GitHub Actions with deterministic rules, annotations and PostgreSQL EXPLAIN tools.

    TypeScript 2

  2. ask-database ask-database Public

    Context-aware SQL workspace with schema, query and correction memory, validation and safe execution.

    TypeScript 1

  3. visualdb-studio visualdb-studio Public

    Visual PostgreSQL schema designer with relationship editing, SQL generation, validation and schema scoring.

    TypeScript 1

  4. oracle-bank-system oracle-bank-system Public

    Oracle SQL and PL/SQL banking system covering transfers, auditing, scheduling, security and recovery runbooks.

    JavaScript 1

  5. milekv.github.io milekv.github.io Public

    Source for milekv.github.io, presenting selected developer tools, backend systems and database applications.

    TypeScript 4