Sardine Jobs

There are 7 Web3 Jobs at Sardine

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$50k - $70k

Who we are:

Sardine has built a behavior-based platform for fraud prevention, regulatory compliance, and instant payments. Led by a team of industry veterans, and fraud experts from PayPal, Zelle, Revolut, Chase, and Coinbase, the company has quickly grown to over 200 global customers. Sardine has raised $75M, led by Andreessen Horowitz Growth, XYZ Capital, Google Ventures, Visa, Activant Capital, Experian, and ING Ventures.

Our culture:

  • We have hubs in the Bay Area, NYC, and Toronto. However, we have a remote-first work culture. #WorkFromAnywhere

  • We hire talented, self-motivated people and get out of their way

  • We value performance and not hours worked. We believe you shouldn't have to miss your family dinner, your kid's school play, or doctor's appointment for the sake of adhering to an arbitrary work schedule


  • Brazil or Argentina (From Home / Beach / Mountain / Cafe / Anywhere!)

  • We are a remote-first company with a globally distributed team. So you can find your productive zone and work from there.

About the Role:

Sardine is looking for a world-class browser security expert with a specialized focus on device fingerprinting to join our device intelligence team. As a Browser Security Developer, you will play a critical role in enhancing the capability of our JavaScript and mobile SDKs to detect bots, compromised devices, fraudulent devices, and more using advanced device fingerprinting techniques.

You will:

  • Research, design, and implement signal collection on our TypeScript SDK by following development best practices, including unit test, continuous deponent, etc.

  • Design, implement, and own signal collection logic in TypeScript SDK.

  • Innovate ways to detect automation tools like Selenium or Puppeteer and identify adversary tactics, techniques, and procedures leveraged by bots.

  • Discover adversary tactics, techniques, and procedures leveraged by bots.

  • Research the latest fraud, abuse, and attack trends and play with web browsers to find ways to protect against them.

  • Understand customer-specific requirements, deliver with impact, and exceed customer expectations.

  • Work closely with different engineering teams and product teams.


  • 3+ years of working experience building client-facing SDK using TypeScript

  • Experience with the latest JavaScript/TypeScript specifications

  • Knowledge of fraud and bot detection would be a plus

  • Degree in Computer Science or equivalent knowledge

  • Expertise in web technologies and protocols (DOM, Javascript, HTTP/HTTPS, IPv4/v6, etc.)

  • Experience with Android and iOS development is a plus.

Technologies we use:

  • TypeScript (React + node)

  • Golang

  • Ruby

  • Bigtable

  • Postgres / PostgreSQL

  • GCP dataflow (apache beam)

  • BigQuery

  • Python

  • Java

  • Terraform

Compensation: Base pay range of $50,000 - $70,000 + Series B equity with tremendous upside potential + Attractive benefits

Benefits we offer:

  • Generous compensation in cash and equity

  • 7-year for post-termination option exercise (vs. standard 90 days)

  • Early exercise for all options, including pre-vested

  • Work from anywhere: Remote-first Culture

  • Flexible paid time off

  • 100% of health insurance, dental, and vision coverage for employees and 60% for dependents - US specific

  • 4% matching in 401k - US specific

  • 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 health and wellness stipend

  • Monthly meet-up stipend

  • Annual Learning stipend

  • Unlimited access to an expert financial advisory

Join a fast-growing company with world-class professionals from around the world. If you are seeking a meaningful career, you found the right place, and we would love to hear from you.