Problem

A static-analysis choreography product had a Haskell back-end, a TypeScript front-end, and an ambition to migrate the server side to Kotlin. The team needed new features shipped on the existing stack while the rewrite progressed.

What I did

• Built features on the Haskell back-end powering the analysis choreography engine.
• Designed and implemented a reusable front-end component system used across the product.
• Designed and shipped complex multi-step login flows.
• Contributed to the Kotlin rewrite of the back-end, keeping behaviour parity with the Haskell original.

Outcome

Features continued shipping on the live product while the back-end migrated stack underneath, with a consistent design system replacing ad-hoc UI on the front end.

Stack

• Languages. Haskell, TypeScript, Kotlin