Exclusive Interview with Harsh Sinha, CTO of Wise

Wise: Engineering Borderless Finance at Global Scale

Company Overview: Location, Country, and Offices

Wise is headquartered in London, United Kingdom, and operates as a global fintech platform focused on international payments, multi‑currency accounts, and cross‑border financial infrastructure. The company maintains major offices in London, Tallinn, Budapest, Singapore, New York, Austin, and São Paulo, reflecting its international operating model.

Wise operates under a combination of EMI licences, payment institution registrations, and regulated partnerships across Europe, the UK, the US, Asia‑Pacific, and Latin America. This regulatory footprint allows Wise to provide local account details, IBANs, and domestic payment rails in multiple markets while remaining compliant with PSD2, AML, and consumer protection frameworks.

Leadership Background: Harsh Sinha

Harsh Sinha is the Chief Technology Officer of Wise. He joined the company with extensive experience in building and scaling large‑scale distributed systems and high‑availability financial platforms. Prior to Wise, Harsh Sinha held senior engineering leadership roles at Amazon Web Services and other global technology companies, where he worked on cloud infrastructure, developer tooling, and mission‑critical systems.

As CTO, Harsh Sinha is responsible for Wise’s technology strategy, platform architecture, security, and developer experience. His focus is on building resilient, transparent, and efficient infrastructure that enables real‑time international payments while keeping costs low and reliability high.

Products and Technology Strategy

Under Harsh Sinha’s technical leadership, Wise has expanded from a consumer remittance product into a full global money platform. Core offerings include multi‑currency accounts with local IBANs and account numbers, international transfers at mid‑market FX rates, debit cards, business accounts, and embedded finance APIs for platforms and banks.

The Wise platform is cloud‑native and API‑first, supporting real‑time payment routing, FX execution, and settlement across multiple domestic rails such as SEPA Credit Transfer, SEPA Instant where available, Faster Payments, ACH, and local clearing systems. Strong KYB/KYC, fraud monitoring, and reconciliation engines are embedded directly into the core platform.

Interview

1. Where is Wise headquartered and how is the company structured globally?

Answer: Wise is headquartered in London, with distributed engineering, compliance, and operations teams across Europe, the Americas, and Asia.

2. What is your role as CTO of Wise?

Answer: My role is to ensure Wise’s infrastructure is scalable, secure, and efficient while supporting continuous product innovation.

3. What regulatory model does Wise operate under?

Answer: Wise operates primarily as an EMI and payment institution, with licences and registrations across multiple jurisdictions.

4. What are Wise’s core products today?

Answer: Multi‑currency accounts, international transfers, debit cards, business accounts, and platform APIs.

5. How does Wise handle cross‑border payments?

Answer: We use local payment rails on both sides of a transfer to avoid unnecessary FX and intermediary fees.

6. Does Wise support SEPA Instant?

Answer: Yes, SEPA Instant is supported in eligible markets where infrastructure and regulations allow.

7. What role does Open Banking play?

Answer: Open Banking enables faster onboarding, account funding, and payment initiation for customers.

8. How fast can users onboard?

Answer: Many customers can open and fund accounts within minutes using digital verification.

9. How does Wise manage fraud and AML risk?

Answer: Through layered controls, transaction monitoring, machine learning models, and regulatory oversight.

10. What does the technical stack look like?

Answer: A cloud‑native microservices architecture with real‑time monitoring and automated failover.

11. How is pricing structured?

Answer: Transparent, fee‑based pricing with no hidden FX markups.

12. Who are Wise’s main customers?

Answer: Individuals, SMEs, enterprises, and platforms with cross‑border needs.

13. How does Wise differ from PayPal?

Answer: Wise focuses on transparency and real FX rates rather than wallet‑based pricing.

14. How does Wise compare with Revolut?

Answer: Revolut is a super‑app; Wise is focused on international money and infrastructure.

15. What about Remitly and OFX?

Answer: They focus on remittances; Wise provides broader account and platform capabilities.

16. What recent developments stand out?

Answer: Expansion of platform APIs and local account coverage in new markets.

17. How does Wise manage scale and reliability?

Answer: Through automation, strong observability, and continuous resilience testing.

18. What is on the 12–24 month roadmap?

Answer: More local rails, faster settlement, and deeper embedded finance integrations.

19. How does Wise support developers?

Answer: With APIs, documentation, sandbox environments, and webhooks.

20. What is the long‑term vision?

Answer: To make international money movement instant, transparent, and borderless.

Competitors

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FAQ

Is Wise a bank?

No. Wise operates primarily as an EMI and payment institution.

Does Wise support SEPA transfers?

Yes, including SEPA Credit Transfer and SEPA Instant where available.

Who uses Wise?

Individuals, businesses, and platforms globally.

How secure is Wise?

Wise applies strong encryption, segregation of funds, and regulatory oversight.

What makes Wise different?

Transparent pricing, real FX rates, and global payment infrastructure.

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