Arman Mamyan

Work

Financial infrastructure I've helped design and ship.

Architecture, implementation and the decisions behind what shipped.

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

coverant.xyzRead case study
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.networkRead case study

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

eb1.ioRead case study

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

Read case study

Step 01

methodWebAuthn
storedSecure Enclave
backupnone needed
  • WebAuthn
  • FaceID
  • No seed phrase
05 · Global Financial Infrastructure2024 — 2025

Axys Bank

One account for customers holding both fiat and crypto, architected for 200 countries from day one.

200
Countries in scope
IBAN
International rails
Fiat + Crypto
Single balance
  • React
  • Node.js
  • PostgreSQL
  • Payment rails
  • IBAN infrastructure
  • EVM

Staff Software Engineer & Web3 Consultant · Axys Holding

axysholding.comRead case study

Who can move the money

Custodial

Company holds the funds

Hybrid

Company holds keys, not funds

Non-custodial

Only the customer can move funds

Where my work sits

  • Axys Bank
  • Self-custodial bank
  • Coverant
06 · Digital Fashion / WebGL2022 — 2023

ALTR

Fashion houses could finally sell their archives online without shipping a garment or hiring a 3D team.

3D
Interactive garments
In-house
Asset pipeline
CMS
Published without engineers
  • Three.js
  • React Three Fiber
  • WebGL
  • Google Model Viewer
  • React
  • Node.js

Full-Stack Web 3.0 Developer & Platform Architect

altr.spaceRead case study
HOTSPOT
07 · Consumer Product · Web Editor2020

PicsArt

Front-end engineering on the main web editor at one of the largest consumer creative platforms built in Armenia.

Web editor
Core surface
React + TS
Rebuilt in
SVG pipeline
Adobe script integration
  • React
  • TypeScript
  • SVG
  • Adobe Scripts
  • Jest

JavaScript Developer

picsart.comRead case study

Layers

  • Text
  • Sticker
  • Shape
  • Background
Aa

Asset

Font · Regular

One asset · four variations · live font swap

03Full experience

Ten years across software engineering, fintech infrastructure, product delivery and technical leadership.

04Open-source & ecosystem contributions

Code, documentation and integrations contributed across the infrastructure I work with.

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