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I build software products

Engineer and product manager based in Dubai. I ship my own tools and consult on crypto infrastructure for teams that need senior-level help.

What I'm building

I build tools that solve problems I've had myself. Self-hosted infrastructure, developer tooling, and software that should exist but doesn't.

Portless

Live

Remote access for Plex, without the networking headaches.

A tunneling service that gives your Plex server a public HTTPS URL. No port forwarding, no dynamic DNS, no fighting with CGNAT. One Docker container, a two-minute setup, and a free tier to start with.

Works behind any NAT or firewall

Automatic TLS with your own subdomain

Open source on GitHub

Free plan with 50 GB monthly transfer

More products in the pipeline.

Consulting

I also take on consulting work, mostly in crypto infrastructure. I've spent years building these systems in production and I help teams that need someone who's done it before.

Custody architecture

Key management design, multi-sig setups, signing workflows, and operational procedures. I've built custody infrastructure from scratch for an institutional trading firm and I help others do the same, whether you're a startup, a fund, or an individual holding serious value.

key management multi-sig cold storage operational security

Trading infrastructure

Backend systems for exchanges, OTC desks, and brokerage platforms. Order matching, settlement, fiat on-ramps, and the infrastructure that connects it all. I've built and shipped these systems in production.

exchange OTC settlement on-ramps

Product & strategy

Roadmapping, architecture decisions, regulatory conversations, and cross-team coordination. I've worn the PM hat alongside the engineering hat at the same time, which means I can help you figure out what to build and then actually build it.

roadmapping architecture regulatory product management

Hourly, project-based, or retainer. Whatever fits the problem.

About

I'm Antoine, a software engineer and product manager based in Dubai.

I spent years at XBTO across engineering, product, and operations. I built the backend of a trading platform, designed and shipped the custody infrastructure from the ground up, handled product management, worked with regulators, and coordinated across teams. It gave me a thorough understanding of what it takes to build crypto infrastructure that works in production.

These days I mostly build my own products. Portless is the first one out the door, with more on the way. I also consult for companies, funds, and individuals on crypto infrastructure when the engagement is a good fit.

Get in touch

Have a project in mind, need help with crypto infrastructure, or want to explore working together. Drop me an email.

hello@crbl.io