See other companies on Otta


Fraud prevention and compliance infrastructure

101-200 employees
  • B2B
  • Compliance
  • SaaS
  • API
  • Cyber Security
San Francisco, US

Company mission

To remove the friction and risks associated with high velocity money movement, from banks and cards through to digital wallets and crypto.

Top investors

Few candidates hear
back within 2 weeks

21% employee growth in 12 months

Otta's take

Theo Margolius headshot

Theo Margolius

COO of Otta

Identity and payment fraud is one of the biggest dangers facing online businesses. Sardine is setting out to solve this problem by building the first zero-day fraud prevention technology.

Sardine was founded by an impressive combination of ex-Revolut, Coinbase, Paypal and Uber stars. These credentials have enabled the company to amass considerable funding since its launch. Sardine's technology traces intrinsic behaviour patterns to identify so-called "bad actors" online, and detects fraudsters using machine-learned fraud scores and user behavior biometrics.

Sardine calls itself the world's first FaaS (Fraud Detection as a Service), and its solutions are already drawing business from next-gen crypto and financial service institutions such as Fortress and Incode. Onboarding these institutions and scaling its customer base at pace will ensure that Sardine maintains its frontrunner position.


  • Generous equity compensation
  • Work from anywhere: Remote-first Culture
  • Unlimited paid time off and minimum 2 weeks/year of mandatory vacation
  • 100% of health insurance, dental, and vision coverage for employees and 50% for dependents
  • 4% matching in 401k
  • Company-wide offsites, the last one was at Miami
  • MacBook Pro delivered to your door
  • One-time stipend to set up a home office — desk, monitors, etc
  • Monthly meal stipend
  • Annual fitness allowance
  • Unlimited access to an expert financial advisory

Funding (last 2 of 3 rounds)

Sep 2022



Feb 2022




Total funding

This company has top investors


Previously worked as Director of Data Science & Risk at Coinbase, and was Head of Crypto at Revolut.

Zahid Shaikh

(Head of Product)

Previously worked as a Senior Product Manager at both PayPal and Uber, and was Senior Product Owner at Revolut.

Jobs (6)

All locations

Software Engineering

Finance, Legal & Compliance