About

I am CTPO and co-founder at Gateway.fm, where we build infrastructure for institutions moving finance onchain.

My work sits at the intersection of Ethereum infrastructure, security, privacy, and regulated financial systems. These days I am focused on:

• Building Gateway.fm — infrastructure for institutions launching and operating onchain products: stablecoin payments, tokenized assets, treasury flows, rollups, RPC, indexing, privacy, and compliance infrastructure. I work across product, engineering, and protocol architecture.
• Open Privacy Suite — an open, vendor-lock-in-free privacy layer for public and private EVM networks: a JSON-RPC privacy proxy, role-based access control, selective disclosure, compliance tooling, audit trails, and a privacy-aware explorer. The goal is practical privacy: organizations should be able to use Ethereum-compatible infrastructure while controlling who can see what, proving what happened, and meeting real operational and regulatory requirements.
• Ethereum infrastructure — I have been working on Ethereum and blockchain infrastructure since 2017: execution clients, rollups, RPC systems, tracing, access control, and production operations.

Earlier §

Before Gateway.fm I worked with teams and projects including Ethereum Foundation / Erigon, Status, StarkWare, and Opera Software.

My Stateless Ethereum research (ReGenesis, binary tries, witnesses) was done as part of Ethereum Foundation research. At Erigon I was one of the founding engineers; I don't work on it now.

Earlier mobile and platform work included browser, mobile runtime, and energy-efficiency engineering.

Between the Ethereum chapter and Gateway, I ran 0xFF Consulting — an independent security consulting practice based in Sweden, helping companies that didn't have a budget or need for a full-time security lead protect data, IP and money. That practice is closed; its site is preserved as an archive entry.

Hobby tools and personal experiments §

Separate from my Ethereum and Gateway work, I still build small tools for myself, usually with a strong bias toward local-first behavior, privacy, and deliberately constrained product design — LE FLAC, RFF, and Interfast. They live in Projects.

What I care about §

• Secure and scalable infrastructure
• Clear product boundaries for complex systems
• Privacy-preserving applications that are usable in production
• Open standards and avoiding vendor lock-in
• AI-assisted engineering that improves real delivery, not just screenshots
• Building teams that can ship and operate critical systems

This site §

Personal, non-corporate, and built to last: static HTML, no JavaScript, no tracking. Longer reasoning behind it is in the archive philosophy page. The source is on GitHub.