Heftli
Invoicing SaaS for freelancers and Swiss SMEs. Multi-tenant from the first commit, with native QR-Bill generation. I run every layer, from the Supabase and Stripe infrastructure down to the frontend.
Based in Zurich
Senior Technical Lead, Architecture and Platform Engineering
Linux, Kubernetes, and infrastructure as code, on AWS, Azure, GCP, and on-premises estates. Based in Zurich.
- 15+ years
- 7 years enterprise
- 2 live products
Selected work
Products and programmes
Two SaaS platforms I run alone, and seven years of enterprise delivery behind them.
Recent notes
Production notes
Architecture, platforms, security, and production operations.
Self-hosting n8n on Synology DSM with Docker Compose
n8n on Synology DSM with external task runners, one Postgres with a role per service, SearXNG, Browserless, ntfy, NocoDB and Grafana, and what DSM changes.
Running the n8n Assistant code sandbox on Synology DSM
n8n's Assistant sandbox fails on Synology DSM because five kernel features are missing. The errors, the settings that work around four, and what they cost.
Playwright smoke tests as a deploy gate in GitHub Actions
A five-journey Playwright smoke in GitHub Actions that blocks promote, a nightly ladder that does not, and the checks that keep red meaning stop.
Get in touch
Get in touch
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