
New to Contra
Aleksander is ready for their next project!

Systems and platform engineer building software that holds together after it grows.
I work end-to-end across backend systems, web applications, infrastructure, industrial software, and embedded devices. My work starts with the real operational problem, then carries through data modelling and architecture, implementation, deployment, monitoring, and the production debugging that follows.
Most recently, I built and operated a company-wide internal platform from scratch. It grew into 20+ operational modules used across sales, procurement, laboratory work, concrete production, and internal administration, supporting 100+ concurrent users.
Core areas: C, PHP, TypeScript, Vue, Python, C#/.NET, SQL, REST APIs, relational data modelling, query optimisation, Linux, Docker, CI/CD, networking, VPNs, WebAuthn/passkeys, industrial and PLC integration, firmware, and IoT.
I’m particularly interested in performance, data-oriented problem solving, and systems that stay understandable as complexity accumulates.