Staff Backend Engineer - Trust & Control Safety Systems
Core
Architect and lead the Trust, Controls & Safety platform to secure critical workflows (Signups, SaaS checkouts, User management, global communication) against fraud and abuse while ensuring seamless user experience.
Role type
Staff Backend Engineer (Trust & Control Safety Systems)
Builds
Real-time control plane and intelligent safeguards for platform integrity
Domain
SaaS / AI-powered business operating system / Fraud prevention
Deliverable
production ML models | product features | infrastructure
Required skills
Distributed systems mastery, Financial rigor (metering/ledgers), Policy-driven system design, Observability, Technical leadership without formal authority, Reliability engineering, NoSQL and relational data modeling, Streaming and analytical stores
Preferred skills
Abuse & Fraud expertise, Modern Data Stack (Go, Redis, ClickHouse, Flink), Hyper-Growth scaling, Stream processing
Technologies
MongoDB, Firestore, ElasticSearch, Go, Node.js, Redis, ClickHouse, Flink, Kafka
Responsibilities
Redesign and optimize data models and indexing strategies across MongoDB, Firestore, and ElasticSearch; Own ElasticSearch reliability for billions of documents; Eliminate bottlenecks and enforce predictable query latency; Define data flow and integration boundaries between storage, cache, and APIs; Build visibility into every data path via metrics, traces, and dashboards; Enforce unit, integration, and load testing standards; Drive RFCs, ADRs, and design reviews; Write code, design systems, and debug production issues; Mentor engineers and drive cross-team architecture decisions
Seniority
Staff, hands-on IC with strategic direction and mentorship
