Principal Product Manager - KAST Pay - Stablecoin Banking

In-Person (Singapore)

About KAST

KAST is redefining what it means to bank with stablecoins - think Revolut, rebuilt from scratch on Web3. Backed by top-tier VCs, we’ve grown from 0 to 1 million users in under a year. We’re building the next-gen global bank based entirely on stablecoins.

Design is at the heart of everything we do - it’s how we simplify the complex, make money feel easy, and turn crypto skeptics into brand ambassadors.

KAST is redefining stablecoin banking for global citizens, crypto professionals, Web3-native businesses, and high-inflation markets hungry for USD-backed banking. Backed by top-tier global investors and led by the ex-APAC CEO of Circle, our leadership team spans Circle, Airwallex, Revolut, Wise, Grab, Zoom, AWS, and leading OTC desks. We’ve scaled from zero to nearly a million users at ridiculous speed.

By building directly on-chain, we deliver what traditional rails can’t: instant yield, flexible collateralized lending, and richer investment products. With a premium user focus and a culture built on velocity × excellence, we’re moving fast to outpace legacy players and build the next generation of financial services.

At the center of KAST is KAST Pay – the platform that powers custody, accounts, deposits, payouts, and transfers. It’s the foundation of how money moves in and out of KAST: crypto, fiat, and everything in between. Reliable, simple, and fast.

The Role

We’re hiring a Principal Product Manager - KAST Pay to own our core banking and payments platform. This is the product that makes deposits seamless, payouts instant, and transfers magical.

Your mission: build a world-class stablecoin banking core – integrating custody, ledgers, and reconciliation – and pair it with payments infrastructure that handles deposits, payouts, and peer-to-peer transfers across fiat and crypto rails.

At KAST, ideas are worth zero. Execution at ridiculous speed is everything. You’ll be expected to ship relentlessly, overcommunicate progress, and make the complex (custody, ledgers, reconciliation) stupid simple.

What You’ll Be Doing

Core Banking
- Own the customer ledger, points ledger, and financial accounts.
- Manage integrations with crypto custody providers and treasury systems.
- Deliver financial accounting, business reporting, and reconciliations that scale globally.
- Manage user accounts, MFA, account status machine, and customer lifecycle.
Payments (Receive & Send)
- Crypto deposits: accept stablecoin and digital asset deposits across all relevant chains reliably.
- Crypto payouts: conduct stablecoin and digital asset payouts across all relevant chains reliably.
- Fiat payments: integrate PSPs, banks, and real-time payment networks to support on/off ramps.
- Internal book transfers: make peer-to-peer transfers instant, simple, and delightful.
Define and own the KAST Pay product roadmap - custody, ledgers, deposits, payouts, transfers.
Partner with Engineering, Finance, Ops, and Compliance to deliver systems that are audit-ready, reliable, and ridiculously fast.
Set and track KPIs: deposit/payout success rates, reconciliation accuracy, ledger variance, transaction approval rates, customer NPS.

What You'll Bring

10-12+ years in product management, with 5+ years in payments, core banking, or custody.
Deep knowledge of crypto custody, ledgers, reconciliations, and payments (crypto and fiat).
Track record building mission-critical financial systems that scale globally.
Experience with stablecoin or digital asset flows (deposits, payouts, transfers).
Entrepreneurial mindset: you simplify complexity, move with speed, and build like a founder.
You thrive where 80% today beats 100% tomorrow – and you know when polish matters.

Why KAST?

Build KAST Pay, the core engine of a global, stablecoin-first challenger bank.
High ownership, zero bureaucracy, and direct impact.
Work with a world-class team across crypto, payments, and fintech.
Competitive comp + meaningful equity.
Join a no-BS, high-energy team on track to be the next unicorn.

How To Apply?

Referrals only. Find your way in.

Ask someone from the KAST team to vouch for you.
Show us what you’ve built that proves you’re world-class.
Or surprise us - the best builders always do.

Interview Process