Founding Senior Engineer – Backend & Blockchain — Ihsan Job Yonkers area,New York USA,Software Development

Position: Founding Senior Payments Engineer – Backend & Blockchain — Ihsan

Company: Ihsan
Location: Remote
Sector: Blockchain
Source: web
3.career

Location: Remote Type: Full-time Product: Ihsan Pay

About Ihsan Pay

Ihsan Pay is building a self-custodial stablecoin payment system that feels as simple and familiar as a modern bank account.

It will be integrated into the Ihsan messenger and enable users to:

Hold stable coins in self-custodial wallets
Send money directly through conversations
Pay and receive money through QR codes
Accept payments as a local or online merchant
On-ramp from and off-ramp to local bank accounts

Our goal is to hide the complexity of wallets, blockchain addresses, seed phrases and network fees while allowing users to retain control over their money.

The role

We are looking for a senior backend and blockchain engineer to become one of the founding technical owners of Ihsan Pay.

You will design and build the first version of our payment infrastructure, working closely with our existing development team.

This is not primarily a token, NFT or DeFi role. We are building reliable consumer payment infrastructure where security, accuracy and usability are essential.

What you will build

Embedded self-custodial wallets using Privy, Turnkey or comparable infrastructure
Stablecoin transfers on Solana
Username and phone-number-to-wallet resolution
Money transfers inside messenger conversations
Personal and merchant QR payments
Payment requests, receipts and transaction history
Sponsored network fees and gas abstraction
Blockchain monitoring and transaction reconciliation
Merchant payment APIs, webhooks and checkout infrastructure
Sumsub or Persona KYC/KYB integration
On/off-ramp integrations with providers such as Bridge, Open Due or similar
Card integration with infrastructure providers such as Rain or Reap
Secure wallet recovery and key-export flows

Your responsibilities

Own the architecture of Ihsan Pay from prototype to production
Build secure and scalable backend payment services
Integrate wallet, blockchain, KYC, on-ramp and card providers
Ensure Ihsan Pay cannot independently access users’ self-custodial funds
Design reliable transaction-status and reconciliation systems
Establish security standards and review payment-related code
Document the architecture and operational procedures
Help recruit and mentor future payments engineers
Work closely with our mobile, backend, product and design teams

What we are looking for

Strong production backend experience with Go, Type Script or a comparable language
Experience building or integrating blockchain wallets and transactions
Practical experience with Solana and SPL tokens
Experience with payment APIs, webhooks, idempotency and reconciliation
Strong understanding of private-key security, transaction signing and wallet recovery
Experience with PostgreSQL and scalable backend systems
Ability to make architectural decisions independently
Clear communication and strong technical documentation
A security-first approach to financial infrastructure

Strong advantages

Experience with Privy, Turnkey or similar embedded-wallet infrastructure
Experience with USDC, EURC or stablecoin payment products
Experience building a double-entry ledger
Experience integrating on/off-ramps, card issuers or payment processors
Experience with Helius or other Solana infrastructure
Experience with QR payments or merchant checkout systems
Experience building consumer fintech, wallets, remittance or neobanking products
Experience taking a payment product from prototype to production

Who this role is not for

This role is unlikely to be suitable if your blockchain experience consists primarily of:

Creating tokens
NFT projects
Trading bots
DeFi projects without production payment experience

We need someone who understands both blockchain technology and the reliability requirements of real financial systems.

Take technical ownership of a new payment system from its foundation
Build a product designed for meaningful global use
Shape the architecture instead of inheriting legacy infrastructure
Work at the intersection of stable coins, messaging and everyday payments
Grow into a leadership position as the engineering team expands
Competitive compensation and meaningful long-term equity participation