About
I design and ship financial systems that make it to production.
I work with fintech teams building wallets, payment rails, stablecoin infrastructure, cards, identity and digital-asset products — from architecture and provider decisions through implementation and launch.
Principles
How I approach infrastructure
Infrastructure over interface
Interfaces are replaceable. The structure underneath decides whether a product survives its second year.
Constraints before features
Most engineering failures are unstated assumptions. I start with what must never break, then build outward.
Boring where it counts
Novelty belongs in the parts that differentiate. Money movement, custody and identity should be predictable.
Discipline compounds
Consistent, unglamorous execution beats bursts of intensity — in code, in teams and outside work.
Media
I host People Behind Industry.
A podcast about the people, decisions, failures and systems behind industries and technology. Long-form conversations with builders, operators and engineers about how things actually get made — and what it costs.
Open source
nest-fireblocks-service
NestJS service wrapping Fireblocks custody operations behind a typed internal API.
account-abstraction-kit
Account Abstraction / Account Kit experiments — smart accounts, passkeys and sponsored transactions.
Beyond the terminal
- BoxingDiscipline that translates into engineering.
- GymConsistency over intensity.
- ReadingSystems, psychology, history.
- Video gamesInterfaces worth studying.
- Three.js / WebGLWhere engineering meets craft.
- IT conferencesOrganizing and speaking, on both sides of the stage.
Languages · Armenian / English / Russian
Contact
Tell me what you're building — and what's blocking it.
If the problem sits somewhere between financial infrastructure, product and engineering, there's a good chance I can help.
Book an intro call
30 min · video
Prefer to write first? armmamyan@gmail.com