Real-Time Trust & Safety Engineer — Remote

Resend; United States; Remote; USD 150,000 - 175,000; Full time

Job summary

Resend is building a modern email sending platform for developers with a focus on reliability and developer experience. You will design and operate the anti-abuse systems, enabling real-time enforcement and scalable detection pipelines across the platform.

The role emphasizes ownership from frontend to databases, strong observability, and collaboration with global teammates. This is a fully remote position across Americas and European time zones.

Qualifications

• 5+ years of software engineering experience.
• Fluent written and spoken English.
• Deep experience with Node.js, TypeScript, React (Hono, Next.js).
• Go for latency-sensitive services.
• Infrastructure and reliability skills (AWS, CDK, Datadog).
• APIs, event-driven architectures, queues and stateful services.
• Design systems that fail safe and treat false positives as bugs.
• Strong observability: metrics, logs, tracing, error handling.
• Ownership across the stack from frontend to databases and queues.
• Experience with databases (Postgres, Redis).

Responsibilities

• Build and run the real-time enforcement layer within a latency budget of milliseconds.
• Design pipelines moving from signal to decision to action across sending, receiving and account activity.
• Build detection rules and policies and keep them safe to change.
• Detect and contain account takeover and leaked API keys without locking out owners.
• Close the feedback loop with reasons for blocks/reversals to measure precision.
• Automate investigations, appeals and bulk actions as volume grows.
• Build and evaluate ML classifiers for spam and phishing and prove their precision.
• Implement safeguards and ensure actions are traceable through logs and metrics.
• Ensure all enforcement actions are traceable with logs, metrics, and audit trails.

Skills

Software engineering

Node.js

TypeScript

React

Go

AWS

CDK

Datadog

APIs

Event-driven

Queues

Postgres

Redis

Tools

Postgres

Redis

Job description

Resend is building a modern email sending platform for developers with a focus on reliability and developer experience. You will design and operate the anti-abuse systems, enabling real-time enforcement and scalable detection pipelines across the platform.

The role emphasizes ownership from frontend to databases, strong observability, and collaboration with global teammates. This is a fully remote position across Americas and European time zones.