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 Tech Lead and Cloud Architect in Switzerland
Cloud architecture, platform engineering, and Cloud and FinOps across AWS, Azure, and GCP. Multi-cloud infrastructure, IaC, security hardening, and cost control. From SaaS products to enterprise migration programmes.
- 15+ years
- 7 years enterprise
- 2 founder-built 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.
Zero-downtime database migrations with GitHub Actions
Zero-downtime, rollback-safe database migrations with GitHub Actions. Expand, drain, contract: the schema, queue, and config changes a digest rollback cannot undo.
CI/CD standardisation across application teams
Reusable GitHub Actions workflows, Environment-scoped OIDC, and digest promotion so several teams ship without each inventing a private release path.
Terraform module patterns for multi-environment cloud estates
Reusable Terraform module boundaries, environment composition, state management, and hand-off patterns for repeatable cloud platforms.
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