About

I’m Ayhan Sipahi, a software consultant based in Berlin.

I help product teams ship software systems that keep working after the team that built them has moved on. Most of my work is TypeScript and AWS: application code, CDK infrastructure, and how the two fit together.

I write here when something I learned was expensive enough that I’d want someone else to learn it cheaper. Currently noodling on domain-driven TypeScript and CDK pattern libraries.

This site, sph.sh, is short for Software Project Hub. It is where that work is documented: 200+ posts across 13 series since September 2025, every one published in both English and Turkish. New here? Start with the most-read posts: TypeScript formatting and linting tools compared, career levels in tech, or when to skip the MCP layer.

── Stack I reach for

Languages: typescript

Cloud: aws · cdk · lambda · dynamodb · ecs

Frontend: react · next.js · react-native · tailwind

Ops: github-actions · datadog · sentry

── Elsewhere

Occasional guest writing on platform engineering topics; happy to speak at Berlin meetups, especially on TypeScript and AWS. If you’re organising something or want a second set of eyes on an architecture decision, the inbox is open.

── Contact

• Email: [email protected]
• GitHub: github.com/ayhansipahi
• LinkedIn: linkedin.com/in/ayhansipahi
• RSS: sph.sh/rss/en.xml

Based in Berlin, working across CET hours. Quickest replies via email.