Karolis Ramanauskas
Full-Stack Engineer
✌️ Hi, I'm a Full-Stack Engineer (frontend-leaning) and a builder at heart. Enjoy converting ideas into digital products. You'll find me at the intersection of engineering, design, and product.
Lattice
Senior Full-Stack Engineer · Web3 Tooling
2024-2026
↳ Core contributor to MUD, a collection of tools for building Ethereum apps. Contributed to DUST 3D game client, the SDK for third-party extensions, and built the initial apps. Designed and implemented Worlds Explorer, a data exploration tool.
0xMacro
Auditing Apprentice · Web3 Security
2023-2024
↳ Participated in security audits of production Solidity smart contracts through manual code review, unit testing, and fuzz testing to identify and mitigate vulnerabilities.
Volvo Cars
Principal Web Developer · Web Platform
2020-2022
↳ Developed and maintained Volvo Cars' web design system and component infrastructure. Owned the development of a custom CMS and internationalization platform.
Uber
Frontend Engineer · Observability
2018-2020
↳ Developed internal observability tools supporting incident detection and mitigation. Built data-driven React interfaces and improved system reliability through instrumentation and error monitoring.
Toptal
Freelance Full-Stack Developer
2017-2018
↳ Delivered end-to-end web applications for external clients, translating product requirements into final products.
Tools
- React
- Next.js
- Tailwind CSS
- TypeScript
- JavaScript
- Framer Motion
- Three.js
- Vercel AI SDK
- GraphQL
- PostgreSQL
- Supabase
- Solidity
- Figma