---
title: 'Software Engineer, Trust & Safety at Resend'
canonical: 'https://feeny.ai/job/software-engineer-trust-safety-resend-americas-1xch1q3442md'
type: 'job'
last_seen: '2026-10-16'
---

# Software Engineer, Trust & Safety at Resend

- **Company:** Resend
- **Location:** Americas
- **Employment:** full-time
- **Work type:** remote
- **Posted:** 2026-10-08
- **Last confirmed live:** 2026-10-16
- **Apply:** https://jobs.ashbyhq.com/resend/729ad3fa-10a2-4a07-ba9c-13b6eec6adb1

## Job description

Resend is growing fast, and there are now over 4 million developers using it. We’re building tools that make email better for developers. We care about dependable infrastructure, thoughtful design, and the experience of everyone building with our products. In this role you'll build the anti-abuse systems that keep Resend open for good senders and closed to bad actors: real-time enforcement on every email, detection pipelines that scale with the platform, and automations that go from detection to action without waiting on a human. This role is fully remote based in Americas or European timezones, with some expected travel for team offsites, conferences, meetups, and more. [Read more about how we work, how we hire, and what we value here](https://resend.com/handbook).

In this role, you will…

- Build and run the real-time enforcement layer within a latency budget of milliseconds
- Design pipelines that move from signal to decision to action, across sending, receiving and account activity
- Build the detection rules and policies that decide when we act, and make them safe to change
- Detect and contain account takeover and leaked API keys: notice when a trusted account stops acting like itself, and stop the damage without locking out the real owner
- Close the feedback loop: every block and every reversal carries a reason, so we can measure each detection's precision and retire the ones that hurt good senders
- Automate manual work such as investigations, appeals and bulk actions, so the team keeps up as volume grows
- Build and evaluate ML classifiers for spam and phishing, and prove their precision before they enforce anything
- Implement safeguards and make every action traceable through logs, metrics and audit trails
- Ensure all enforcement actions are traceable with logs, metrics, and audit trails

You’ll be a great fit if you…

- Bring 5+ years of software engineering experience
- Are fluent in writing and speaking English
- Have deep experience with Node.js, TypeScript, React (Hono, Next.js)
- Write Go, or want to, for latency-sensitive services
- Have infrastructure and reliability skills (AWS, CDK, Datadog)
- Are comfortable with APIs, event-driven architectures, queues and stateful services
- Design systems that fail safe, and treat a false positive as a bug
- Care deeply about observability: metrics, logs, tracing, error handling
- Take ownership across the stack, from frontend surfaces down to databases and queues
- Have proven experience with databases (Postgres, Redis)

You will be an exceptional fit if you also...

- Have worked in trust and safety, fraud or security
- Have built real-time enforcement such as rate limiting, or a rules engine on a policy language like CEL
- Have shipped ML or LLM-based detection in production, and know how to measure its precision and recall
- Know email: SPF, DKIM, DMARC, bounces, complaints, and how phishing campaigns work
- Have knowledge of database performance tuning (Postgres, Redis)

What it means to join the team:

- Room to shape technical decisions and take projects from discovery through production
- Work remotely with teammates around the world
- Close collaboration with the developers who use what you build
- Teammates who value thoughtful feedback, shared learning, and care for each other
- A high bar for product quality, reliability, and the details that make software enjoyable to use
- Comp: $150,000 - $175,000 USD, commensurate with location and experience

Learn more about how we work:

- [Our philosophy for anti-abuse](https://resend.com/handbook/support/what-is-our-philosophy-for-anti-abuse)
- [$3M to make email safer](https://resend.com/blog/3-million-to-make-email-safer)
- [Revoking leaked API keys with GitHub secret scanning](https://resend.com/changelog/github-secret-scanner)

## About Resend

We are building the modern email sending platform for developers. We care deeply about quality, craft, and the developer experience. Our fully remote team of 50 spans 15 countries and counting. We're backed by a16z, Y Combinator, and others. [Meet the humans →](https://resend.com/humans)

## About Resend

## Company Overview
- **One-liner**: Resend provides a modern email API for developers to build, test, and send transactional and marketing emails at scale.
- **Entity Type**: Private (Series A)
- **Headquarters**: San Francisco, California, USA
- **Founded**: 2023
- **Founders**: Zeno Rocha (CEO), Bu Kinoshita (CTO), Jonni Lundy

## Core Business
- Primary industry: Developer tools / Email infrastructure (Communication API)
- Target customers: B2B, primarily developers and engineering teams at startups, SMBs, and enterprises
- Mission statement: Reimagine email for the modern web — building the best communication platform for developers

## Products & Services
- **Email API**: A RESTful API for sending transactional and marketing emails at scale, with SDKs for Node.js, Python, PHP, Ruby, Go, Java, Laravel, Rust, and .NET.
- **React Email (open source)**: A library (5.1k+ GitHub stars) that lets developers code email templates using React components instead of outdated HTML layouts.
- **Resend CLI**: Command-line tool for sending emails directly from the terminal.
- **Deliverability Engine**: Infrastructure focused on inbox placement and avoiding spam folders, backed by SOC 2 compliance and GDPR adherence.

## Market Standing
- **Valuation/Total Funding**: $18M Series A (announced December 4, 2024)
- **Key Metric**: Total funding raised — $18M Series A
- **Notable Investors/Partners**: Y Combinator (Winter 2023 batch), with backing from "incredible investors" including Diana Hu (YC primary partner)
- **Growth Signals**: Launched in 2023, grew to 45 team members as of mid-2025; Y Combinator backing; open source community traction (React Email); challenger brand in a market dominated by SendGrid, AWS SES, and Postmark

## Competitive Advantages
- **Developer-first experience**: React-based email components, modern API design, and extensive SDK support set them apart from legacy providers.
- **Open source community**: React Email has strong adoption (5.1k+ stars) and creates a natural pipeline to the paid API.
- **Deliverability focus**: Deep investment in inbox placement technology, a known pain point for developers.
- **Challenger mindset**: Actively rethinking email infrastructure from scratch, not just copying incumbents.

## Strategic Focus
- **Default to action**: Company culture emphasizes shipping fast, iterating quickly, and taking initiative without permission.
- **Remote-first**: Fully remote company with async communication, two annual offsites, and timezone overlap within the Americas.
- **Quality obsession**: Focus on craft, attention to detail, and delighting developers — challenging the "good enough" status quo in email.
- **Growth stage**: Post-Series A, actively hiring across engineering (Backend, Security, Product, Deliverability) to scale the platform.

## Why Work Here
- **Remote-first culture**: Fully remote with async communication, no plans for mandatory offices. Two annual in-person retreats.
- **Engineering philosophy**: "Default to action" — makers ship PRs, not wait for permission. Emphasis on speed, iteration, and quality.
- **Benefits (Global)**: 20 PTO days/year, 12-week family leave, unlimited sick days, 10 holidays/year (choose US or local), $2,000 home office allowance, annual retreat.
- **Benefits (US-only)**: 100% employee / 90% family health/dental/vision coverage, 401K account (no matching), life insurance.
- **Team size**: ~45 people (as of mid-2025) — early-stage energy with significant traction.
- **Culture values**: No ego, confident curiosity, challenge the status quo, use resources available — documented in a public handbook.

## Sources
1. [resend.com](https://resend.com/)
2. [resend.com/about](https://resend.com/about)
3. [resend.com/careers](https://resend.com/careers)
4. [resend.com/handbook/people/how-we-work](https://www.resend.com/handbook/people/how-we-work)
5. [ycombinator.com/companies/resend](https://www.ycombinator.com/companies/resend)

## Other roles at Resend

- [Platform Engineer](https://feeny.ai/job/platform-engineer-resend-europe-5y2j59c2jhq0) — Europe
- [Platform Engineer](https://feeny.ai/job/platform-engineer-resend-americas-9sqar9rz4e5s) — Americas
- [Software Engineer, Trust & Safety](https://feeny.ai/job/software-engineer-trust-safety-resend-europe-7qep4b2gg90q) — Europe
- [Software Engineer, Developer Tools](https://feeny.ai/job/software-engineer-developer-tools-resend-europe-r51zeekcwcf0) — Europe
- [Software Engineer, Developer Tools](https://feeny.ai/job/software-engineer-developer-tools-resend-americas-1pz1zhqjk2mw) — Americas
- [Backend Engineer, MTA](https://feeny.ai/job/backend-engineer-mta-resend-europe-v8m8py8ghp9b) — Europe
- [Backend Engineer](https://feeny.ai/job/backend-engineer-resend-europe-0hgb8bqh5nx4) — Europe
- [Backend Engineer](https://feeny.ai/job/backend-engineer-resend-americas-c544p6pd99en) — Americas
- [Technical Account Executive](https://feeny.ai/job/technical-account-executive-resend-americas-hhc3a70ks1c0) — Americas
- [Customer Success Engineer](https://feeny.ai/job/customer-success-engineer-resend-americas-8z9m92e7d9f2) — Americas