Job description
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?