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Founding Senior Payments Engineer – Backend & Blockchain
Location: Remote
Type: Full-time
Product: Ihsan Pay
Website: https://ihsan.com/
Social Media: 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
- On-ramp from and off-ramp to local bank accounts
- Spend via a 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 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, OpenDue 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, TypeScript 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
- 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 at 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
Apply via email to vincent@ ihsan.com.
Please submit:
- Your CV
- LinkedIn profile
- GitHub or relevant technical portfolio
- Your current location and time zone
- Your availability
Please answer these three questions:
- What was the project closest to Ihsan Pay that you worked on? (Please share the website, App Store and Google Play Store links.)
- Do you have experience working with the mentioned partners like Sumsub, Persona, Rain, Reap, Bridge, Due, Privy, Turnkey or similar?
- Why are you interested in this position, and which of your experiences do you think can be especially valuable for what we are building?
What does a React developer in web3 do?
A React developer in the context of web3 is a developer who is using the React JavaScript library to build user interfaces for decentralized applications (dApps) that run on the Ethereum blockchain
These dApps often use smart contracts to facilitate transactions and other interactions on the Ethereum network
Overall, the role of a React developer in web3 involves using your skills in React development to help build cutting-edge decentralized applications that leverage the power of the Ethereum blockchain
As a React developer in web3, some of your responsibilities might include:
- Integrating the dApp with the Ethereum blockchain. This might involve using tools like web3.js and Ethers.js to connect to the Ethereum network and interact with smart contracts.
- Building the user interface for a dApp using React. This could involve creating components for the various elements of the dApp, such as buttons, forms, and other input elements.
- Implementing features that are specific to decentralized applications, such as handling cryptocurrency transactions and displaying data from the blockchain in a user-friendly way.
- Collaborating with other members of the development team, such as blockchain engineers and designers, to ensure that the dApp functions properly and meets the needs of the end users.