Haast
2023 - Present · Sydney, Australia - Remote
Joined as the founding frontend engineer at Pre-Seed for a B2B AI-native marketing & legal compliance platform used by enterprises. Built and owned the majority of the frontend for the core product. Scaled through Seed (Airtree $6M) and into Series A (Peak XV $12M) during rapid growth (4.5x YoY revenue), now used by Fortune 500 companies
- Built and scaled core product systems (workflows, reviews, asset management, rule pipelines) and document workflows (PDF comparison, annotations, commenting), contributing to 80% reduction in manual review effort and 2–3x faster time-to-market
- Led frontend foundation: migrated and optimized build system from Rollup → Vite, reducing local dev build times from 30s to 500ms (50x faster, instant HMR); upgraded Svelte v3 → v4 (+ contributions toward v5); and introduced Tailwind + DaisyUI
- Delivered audit-ready review and collaboration UX (annotations, commenting, workflow states) providing complete audit trails and a single source of truth for regulated enterprise approvals
- Stabilized complex state-heavy workflows and resolved production reactivity issues, improving reliability and scalability of critical user flows
- Established engineering standards (TypeScript, linting, CI, pre-commit) and contributed to in-house design system and frontend scalability across the product
Highlights





Testimonials
I've had the absolute pleasure of working alongside Yashash at Haast for the past two years. During this period of time I've watched Yashash grow alongside the organisation and continue to grow evermore capable as a frontend developer.
~ Jim Kelly, Staff Software Engineer @ Haast
Yashash has a solid understanding of frontend development cycles and collaborated efficiently with our design team to build smooth, responsive interfaces. He knows how to push through problems independently and exactly when to ask for guidance to stay unblocked. He brings fantastic energy to the team, and I have absolutely no doubt he has a bright trajectory ahead of him. Any engineering team would be incredibly lucky to have him!