Rust-inclined backend engineer combining disciplined software craft with information systems management. I build reliable data flows for organisations, favour Linux-first tooling, and keep projects explainable, tested, and automated.
- Location: Lower Silesia, Poland(EU) · open to relacation/remote-friendly
- Focus: Rust backends, SQL data pipelines, and information management tooling
- Mindset: — ship useful systems with discipline, ownership, and long-term thinking
- Architecting a CQRS/Event-Sourcing inventory service in Rust with Postgres persistence, async Tokio runtime, and domain-focused test coverage.
- Designing modular CLI utilities in Rust (trait-driven I/O, Clap-powered argument parsing, integration tests) for everyday operations automation.
- Delivering multi-language CI matrices in GitHub Actions (cache tuning, lint/test stages across
stable,beta,nightlytoolchains and Node-based front-end checks). - Shipping bespoke websites and landing pages for SMEs, from storytelling one-pagers to PHP + SQL restaurant systems with reusable components.
- Modelling complex SQL Server workflows (ticketing, promos, route validation) with robust procedural T-SQL and operational safeguards.
- Kubex Wholesaler – CQRS/ES Inventory (Rust, Tokio,
cqrs-es, Postgres): Event-sourced aggregate handling product intake, stock corrections, invoicing, and ledger projections with async command metadata and error types tailored to the domain. - Advent of Code 2024 (Rust workspace): Days 1–6 solved with custom parsers, topological sorts, grid searches, and guard-path simulations; scaffolding ready for further challenges and automated input retrieval.
- Rust CLI Utility Belt (
small_test_tools,pasja_informatyki): Swap management wrapper, hex colour visualiser, VCF generator with modular components, Lotto RNG with audio feedback, and weighted gradebook—each covered by unit/integration tests. - Google SERP Analyzer (C++17, libcurl, filesystem): Full automation pipeline fetching SERP batches, heuristically parsing result types, archiving HTML, and exporting CSV/archives for SEO research.
- Information Management Web Stack (HTML, CSS animations, JS, PHP, Bootstrap): Portfolio and consulting sites with bilingual content, video backgrounds, animated storytelling, and analytics instrumentation for local organisations.
- Air Trails Ticketing Toolkit (T-SQL): Stored procedures managing ticket creation, promotion codes, and route completeness with throttling, validation, and diagnostic logging for SQL Server deployments.
- Languages: Rust, C++, HTML/CSS, Bash, VBA, T-SQL (MariaDB, MS SQL Server)
- Ecosystem: Linux (Debian/Sparky), NeoVim, WezTerm, fish shell, Git (GPG-signed commits), rsync, borg, gocryptfs
- Frameworks & Libraries: Tokio async stack,
cqrs-es,serde,clap,rand, Bootstrap 4/5, JQuery - Practices: TDD, GitHub Actions CI/CD, event modelling, domain-driven design, Agile/Scrum/Kanban facilitation, BPM & process analysis
- Email: [email protected] / [email protected]
- Website: rust.klementowski.pl
- GitHub: github.com/grzegorz-aleksander-klementowski
⭐ Explore the repositories, open an issue if you want to collaborate, and feel free to star projects that resonate with you.