Fintech Infrastructure · Architecture & Delivery

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.

Portrait of Arman Mamyan
UAE, Armenia, Hong Kong SAR
  • 10+years building products
  • Fintechcrypto banking and identity
  • Hands-onarchitecture and delivery
  • UAE · UK · EUtimezone overlap
Worked withAnimoca BrandsMoca NetworkEB1CoverantAxys BankMinistry of High-Tech IndustryRA State Revenue Committee

Infrastructure

Complex fintech problems rarely belong to one team.

Wallet architecture affects compliance. Custody decisions affect UX. Payment rails affect treasury and reconciliation. Provider decisions affect what engineering teams can actually ship. I work across those boundaries — connecting product, architecture and implementation so the whole system works together.

FOUND

Ventures, zero-to-one products and commercial experiments.

BRIDGE

Enterprise integration, partner onboarding, DevRel and technical sales.

02Selected work

What these systems changed for the businesses running them.

01 · Non-Custodial Payment Infrastructure2024 — Present

Coverant

Lets two companies move money on agreed terms without either side — or an intermediary — ever holding the funds.

4
Chains live
0
Custody taken
B2B
Transaction focus
  • Solidity
  • EVM
  • TRON
  • Ethers
  • NestJS
  • PostgreSQL

Co-Founder · Architecture & Smart Contracts

ETHETHEREUMBASEBASEAVAXAVALANCHETRONTRONESCROWNO CUSTODY
02 · Digital Identity / Developer Infrastructure2025 — Present

Moca Network — AIR Kit

Turns enterprise interest in AIR Kit — Moca's identity, fintech and loyalty SDK — into signed, shipped integrations, by owning the technical conversation on both sides of the table.

Enterprise
Partner onboarding
docs.moca
Developer platform
DevRel
Feedback into product
  • TypeScript
  • SDK design
  • Digital identity
  • Technical documentation
  • Developer experience

Developer Advocacy · Integration & Sales Engineering · DevRel

docs.moca.network

Account surface

  • Quickstart: first account in ten minutes
  • Sessions and organisation scoping
  • Choosing account-only vs full-stack
  • Common failure modes

First call to live integration

  1. Discovery

    Technical discovery

  2. Feasibility

    Architecture proposal + PoC

  3. Integration

    Guides, samples, review

  4. Launch

    Production unblocked

03 · Fintech · Founding Engineering2025 — Present

EB1

Founding engineer on a crypto-backed card and wallet business — I own the stack end to end, from architecture through to the security review.

End to end
Architecture to security
iOS + Android
Shipped to stores
Platform-wide
Security remediation led
  • React Native
  • Expo
  • NestJS
  • PostgreSQL
  • Solidity
  • Next.js

Founding Engineer · Architecture, Backend, Mobile, Contracts, Infra, Security

Wallet

  • USDC · 12,480.22
  • ETH · 3.104
  • AVAX · 880.00

Card issuance

  • Virtual card · active
  • Limit · 25,000
  • 3-D Secure · on

KYC

  • Document · verified
  • Liveness · passed
  • Risk score · low
04 · Crypto Fintech2024

Self-Custodial Banking

Banking-app ergonomics with real customer custody — no seed phrase, still recoverable.

Passkeys
No seed phrase
USDC
Stablecoin-first
MVP
Delivered under NDA
  • Account Abstraction
  • Turnkey
  • Alchemy
  • USDC
  • AAVE
  • Passkeys

Lead Software Architect & Web3.0 Engineer · Stealth

Step 01

methodWebAuthn
storedSecure Enclave
backupnone needed
  • WebAuthn
  • FaceID
  • No seed phrase

Now

Current work

What I'm building, advising on and exploring now.

Building
Non-custodial financial infrastructure, and a crypto-backed card business from the ground up.
Operating
Enterprise integrations and developer infrastructure at Animoca Brands.
Exploring
Identity, stablecoins, AI, trust systems and the new economics of software.
Explaining
Technology and finance, to conference rooms and to government ministries.

On stage

I explain difficult systems to rooms that don't share the vocabulary.

Keynotes, executive workshops and institutional briefings on financial infrastructure, digital assets, blockchain systems and identity.

Speaking profile →
Arman Mamyan recording a podcast interview in a studio

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.

Open to

  • Architecture Sprint
  • Launch Sprint
  • Fractional Fintech Lead
  • Speaking & Podcast

Based in

UAE, Armenia, Hong Kong SAR

Book an intro call

30 min · video

Prefer to write first? armmamyan@gmail.com