Founding Senior Payments Engineer - Blockchain

Location: Remote

Type: Full-time

Product: Ihsan Pay

Website:https://ihsan.com/

SocialMedia:https://www.instagram.com/sultansamuelaziz/

YouTube:https://www.youtube.com/@sultansamuelaziz/

Stack: Go, TypeScript, PostgreSQL, React Native, Solana

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 stablecoins in self-custodial wallets
• Send money directly through conversations
• Pay and receive money through QR codes
• Accept payments as a local or online merchant
• Buy and sell stablecoins through integrated partners
• Fund and use a stablecoin-connected visa debit card

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 blockchain engineer to become one of the founding technical developers of Ihsan Pay.

You will design and build the first version of our payment infrastructure, working closely with our existing messenger 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 KYC/KYB integration
• On/off-ramp integrations with providers such as Bridge
• Card integration with infrastructure providers such as Rain
• 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

• Experience building or integrating blockchain wallets and transactions
• Experience with payment APIs, webhooks, idempotency and reconciliation
• Strong understanding of private-key security, transaction signing and wallet recovery
• Ability to make architectural decisions
• Clear communication and strong technical documentation
• A security-first approach to financial infrastructure

Strong advantages

• Experience with Privy, Turnkey, Web3Auth or similar embedded-wallet infrastructure
• Experience with USDC, USDT or stablecoin payment products
• Experience with Solana
• Experience with Go, TypeScript or a comparable language
• Experience integrating on/off-ramps, card issuers or payment processors
• 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
• Experimental smart contracts
• DeFi projects without production payment experience

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

Why join

• 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 on the intersection of stablecoins, messaging and everyday payments
• Grow into a leadership position as the engineering team expands
• Competitive compensation and meaningful long-term equity participation

How to apply

Please apply via email to vincent@ ihsan.com.

What we would like you to include in your application:

• Your CV
• LinkedIn Profile
• GitHub profile or relevant code samples
• Links to payment, wallet or blockchain products you have built
• A short description of your exact responsibilities in those projects
• Your preferred compensation and availability