Help define architecture to support millions of daily API requests, build and scale infrastructure for sending tens of millions of emails daily, and improve high availability across distributed applications.
Scale databases like Postgres and Clickhouse for performance, enhance observability using tools like Datadog, and refine disaster recovery plans for quick and reliable service recovery.
Build infrastructure with IaC frameworks like CDK and TF, work with Typescript and Golang, and design and operate async pipelines handling tens of millions of messages daily with on-call rotation for critical services.
Resend is building the modern email sending platform for developers, focusing on quality, craft, and developer experience. It is a fully remote team of about 40 people spanning 11 countries, backed by investors like a16z and Y Combinator, and values honesty, low ego, and autonomy.
Experience in email deliverability, reputation, mail operations, anti-abuse, or high-volume email systems.
Understand IP reputation, domain reputation, authentication, bounces, complaints, suppressions, and warmup.
Know how major mailbox providers behave and how to diagnose provider-specific delivery issues.
Resend is building the modern email sending platform for developers, focusing on quality, craft, and the developer experience. The fully remote team consists of 45 people across 13 countries and is backed by a16z, Y Combinator, and others.
Build and evolve the frontend experiences customers use to create, preview, and analyze email campaigns.
Design and scale the backend systems that power high-volume email sending, including queue management, retry logic, and event processing.
Own deliverability-adjacent systems: bounce classification, suppression management, IP/domain reputation monitoring, and feedback loop processing.
Customer.io's platform is used by over 8,000 companies to send billions of emails, push notifications, in-app messages, and SMS every day. They help teams send smarter, more relevant messages using real-time behavioral data; under the hood, Go, React, Ember and AI help them ship fast and scale with confidence.
Own and build core backend systems for highly scalable messaging infrastructure.
Design, ship, and maintain backend services handling billions of messages monthly.
Solve complex infrastructure problems across routing, messaging, delivery, and automation systems.
Textla is the first outbound operating system for SMS, allowing enterprise brands to leverage AI-first infrastructure to deliver communication campaigns at scale. They are an early-stage startup with meaningful traction, top-tier investors, and a small, fast-moving team that operates as a people-first company.