Senior Elixir/Phoenix engineer and systems architect

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Erlang OTP Phoenix PostgreSQL SQLite Tailwind

Senior Elixir/Phoenix engineer and systems architect with 17+ years of experience building scalable backend systems for fintech, e-commerce, and distributed platforms, with 8+ years of professional experience focused heavily on Elixir, OTP, and BEAM-based systems.

I’ve designed and shipped payment infrastructure, PCI-compliant card vaults, multicountry settlement systems, and high-concurrency platforms operating across international markets. I enjoy working on problems where architecture, concurrency, reliability, and scalability matter—not just implementing features.

I’m an active contributor to the Elixir ecosystem and the author and maintainer of ActiveMemory, an open-source BEAM data-storage library with 200,000+ downloads on Hex.pm.

I also use agentic AI development as a primary software delivery method, combining AI agents with architectural oversight, automated testing, and engineering guardrails. Most recently, I built a guard-railed internal operations platform from an empty repository to deployed AWS staging in two weeks of solo development, with 840+ tests, two database engines, a bilingual interface, and a full audit trail. I treat agentic development as a way to amplify experienced engineering judgment, not replace it.

Alongside hands-on engineering, I have around 12 years of architecture and engineering leadership experience, including building, mentoring, and leading teams of up to 37 developers. I’m comfortable moving between architecture, implementation, technical leadership, and working directly with stakeholders to solve complex problems.

Actively looking

Futamatao, Tokyo, Japan

12:28 PM

Prefer remote

Interested in offers

Full time

Part time

Contractor

Interested in roles

Senior

Principal / Staff

C-level