This is my personal and open-source engineering profile: backend systems, cloud tooling, product engineering and technical experiments beyond my commerce-focused work.
For AI + commercetools projects, see @tomasz-miller.
Santa’s Sack · Gifts
Live four-language product ecosystem built with Next.js, PostgreSQL, Redis and AWS. It includes graph-based assignment with exclusions, shared SSO across applications and asynchronous email/scheduled workflows using SQS FIFO, Lambda, SES and EventBridge.
Carpenter’s Toolkit
Live multilingual Vue/TypeScript toolkit with carpentry calculators and references, localized SEO/structured data, consent-aware analytics and Turnstile-protected feedback on Cloudflare.
These source repositories are private; the links point to the running products.
weles
Universal feedback intake API written in Go. Runs on AWS Lambda or Docker and includes Cloudflare Turnstile verification, origin/host allowlists, Amazon SES delivery, SSM-based configuration, OpenAPI documentation and CI with race tests.
awesome-deploy
Maintained Docker images for AWS-focused CI/CD with Amazon Corretto, Node.js, Maven/Gradle, AWS CLI, SAM CLI and CDK.
kraken-mod-manager
Cross-platform mod manager with a framework-independent core, dependency planning, archive safety, hash verification, tracked uninstall, SSE progress and an automated quality pipeline.
truss-breaker · Live demo
Browser-based 2D truss solver with a stiffness-matrix engine, interactive visualisation, engineering results, Python export, unit/E2E tests and Cloudflare deployment.
corrosion-lab · Live demo
Python/Streamlit application for high-temperature oxidation kinetics, anomaly detection, curve fitting and rule-based coating recommendations - a digital continuation of my materials-engineering MSc work.
commercetools Java SDK v2 - merged PR #1069
Accepted performance and quality improvements that removed redundant iterations and allocations across HTTP clients and utility code.
AWS Lambda Java Libraries - PR #480
Contribution adding ScheduledV2Event support and locale-stable tests for EventBridge Scheduler payloads.
- reliable backend and distributed systems;
- AWS architecture and serverless delivery;
- AI-enabled product engineering and agent-assisted development;
- practical software that crosses domain boundaries.