Kasun Peiris
Frontend Engineer
Lead frontend engineer with 12+ years of experience in design-driven development, frontend architecture, and high-performance web applications.
Currently building Web3 developer tooling at BuildBear Labs, while continuing selected work through Karapincha Studio. Based in South Asia (Sri Lanka), UTC+5:30.
Selected Impact
BuildBear Labs
Frontend architecture and 200+ component design system for a Web3 private sandbox platform, reducing design-engineering time by 80% and enabling a full platform rebuild in under 30 days.
RareSkills
WordPress-to-Next.js migration completed in under 30 days with zero downtime, including 220+ LaTeX-heavy posts and a GitHub-to-Next.js publishing pipeline.
ET Cloud POS
Enterprise cloud POS deployed across 70+ retail locations for 40+ businesses, with keyboard-first navigation, touch input, and 20+ business modules.
Tesla Owners UK
Membership platform for 20,000+ members with Next.js, Headless WordPress, GraphQL, payments, e-commerce, and a super-admin portal.
John Morris Group
B2B custom e-commerce platform for lab equipment with 150+ components, 50+ templates, checkout, quote requests, and faceted filtering.
NZ Safety Blackwoods
Frontend infrastructure and team leadership for a 5 engineer team building industrial POS and asset management systems for enterprise clients.
Career History
BuildBear Labs
Mar 2024 - Present
Lead Frontend Engineer
Karapincha Studio
2020 - Present
Founder
Amplifyn
2018 - 2020
Tech Lead (Frontend)
Amplifyn
2016 - 2018
Senior Software Engineer
AccelAero (ISA FZE)
2015 - 2016
Senior UI Engineer
ESOFT Metro Campus
2014 - 2015
Frontend Engineer
Web Choice Online
2013 - 2014
Trainee Designer and Developer
Skills
Frontend
Scalable, high-performance web applications built with modern frontend architecture and production-grade engineering practices.
Web3
Developer tooling and blockchain product interfaces built around wallet integrations, RPC flows, and Web3 infrastructure.
Design Systems
Design-driven development with accessible interfaces, reusable components, and consistent cross-product styling.
State and Data
Predictable application state, data fetching, URL state, and content workflows for complex product interfaces.
Performance and Accessibility
Fast, accessible interfaces with careful attention to rendering strategy, keyboard support, and measurable quality.
Backend
Reliable full-stack delivery across APIs, CMS integrations, deployment, automation, and platform tooling.
Collaboration
Close collaboration with product, design, and engineering teams through documentation, mentorship, and clear handoff.
Side Projects
Email me about design, frontend, or product work at peiris@kasun.io