Staff Engineer - Fraud Prevention

As a Staff Engineer for Fraud Prevention at Sardine, you serve as the technical steward and platform architect for both the Consumer Fraud and Business Fraud engineering teams. You drive technical strategy, optimize mission-critical infrastructure that processes massive volumes of data in real-time, mentor senior engineers, and assume broad ownership across a platform relied on by leading companies including FIS, GoDaddy, Intuit, Edward Jones, ZoomInfo, and Checkout.com.

What you'll do

• Act as the overarching technical leader for multiple teams, partnering with stakeholders to unify platform strategy
• Architect, design, and optimize ultra-low-latency backend services and a high-throughput rules engine
• Design optimal data access patterns, partitioning strategies, and caching layers across a complex, multi-cloud database ecosystem
• Develop robust pipelines for massive parallel execution of real-time feature computations and aggregations
• Shape engineering culture, mentor senior engineers, and drive high technical standards from conception to delivery

What you bring

• 7+ years of software engineering experience, with a proven track record operating at a Staff, Principal, or Lead Architect level
• Deep expertise in building highly available, distributed systems with strict ultra-low latency requirements
• Hands-on production experience with stream processing frameworks such as Kafka, Flink, SQS, or PubSub
• Advanced proficiency in polyglot persistence, with experience tuning data models across Document, Wide-Column, and Relational databases
• A strong platform engineering mindset focused on reliability, observability, and developer velocity
• Proficiency in communicating complex architectural concepts and driving cross-team consensus

What we offer

• Generous compensation in cash and equity, with early exercise for all options including pre-vested
• Remote-first work culture with flexibility for in-person meetings in San Francisco or Berkeley as needed
• Flexible paid time off and year-end break
• Health insurance, dental, and vision coverage for employees and dependents (US and Canada)
• 4% matching in 401k / RRSP (US and Canada)
• MacBook Pro delivered to your door
• One-time stipend to set up a home office with desk, chair, screen, and other essentials
• Monthly meal stipend
• Monthly social meet-up stipend
• Annual health and wellness stipend
• Annual learning stipend

About Sardine

Sardine is the leading agentic risk platform for fighting financial crime, helping organizations stop fraud in real time, prevent AI-driven attacks, and automate fraud and AML operations. The platform is strengthened by one of the fastest-growing fraud consortiums in the market, spanning more than 6 billion profiled devices, 800 million consumers, and 3 million businesses worldwide.