Software Engineer, Developer Tools

Resend; Brasil; Remote; BRL 647,000 - 797,000; Full time

Job summary

Resend is building tools that make email better for developers, with an emphasis on dependable infrastructure, thoughtful design, and developer experience. On the DevTools Squad, you'll work across SDKs, React Email, CLI, MCP, integrations, and supporting backend services.

This fully remote role spans the Americas and European time zones; you will build and operate services supporting developer tools and integrations, collaborate on API contracts, own compatibility, testing, releases, upgrades,

Qualifications

• Backend engineering experience building and maintaining APIs or production services.
• Experience in TypeScript and Node.js.
• Knowledge of authentication, authorization, retries, idempotency, rate limits, and partial failures.
• Experience with clear interfaces, errors, documentation, and backward compatibility.
• Ability to solve ambiguous problems and deliver focused solutions.
• Open-source maintenance or external contributions is a plus.
• Experience with SDKs, CLI, MCP servers, integrations, or React/frontend build tooling.
• Operated systems with queues, monitoring, and error recovery; cross-language experience.
• Experience in email development or interest in learning the space.

Responsibilities

• Build and maintain tools that make Resend easy to integrate across languages, frameworks, and environments.
• Build and operate services supporting developer tools and integrations.
• Collaborate on clear API contracts and consistent behavior across SDKs, CLI, MCP, and documentation.
• Build interfaces developers and agents use to work with Resend, such as MCP, skills, and CLI.
• Own compatibility, testing, releases, upgrades, and shared tooling; work with developers through support, GitHub issues, and pull requests.

Skills

Backend engineering

APIs

TypeScript

Node.js

Auth & security

Reliability & monitoring

Open-source

SDKs/CLI tooling

Cross-language

Tools

MCP servers

Job description

Resend is building tools that make email better for developers, with an emphasis on dependable infrastructure, thoughtful design, and developer experience. On the DevTools Squad, you'll work across SDKs, React Email, CLI, MCP, integrations, and supporting backend services. The role is fully remote in the Americas or European time zones, with occasional travel for team events.

In this role, you will Build and maintain tools that make Resend easy to integrate across languages, frameworks, and environments. Build and operate services supporting developer tools and integrations. Collaborate on clear API contracts and consistent behavior across SDKs, CLI, MCP, and documentation. Build interfaces developers and agents use to work with Resend, such as MCP, skills, and CLI. Own compatibility, testing, releases, upgrades, and shared tooling; work with developers through support, GitHub issues, and pull requests.

• You will be a great fit if you Have backend engineering experience building and maintaining APIs or production services.
• Are experienced in TypeScript and Node.js.
• Understand authentication, authorization, retries, idempotency, rate limits, and partial failures.
• Have built software other developers depend on and care about clear interfaces, errors, documentation, and backward compatibility.
• Can take an ambiguous problem through a focused solution and release, communicate clearly, and take ownership.
• It is a plus if you have Maintained open-source software or worked with external contributors.
• Built SDKs, command-line tools, MCP servers, integrations, or React/frontend build tooling.
• Operated systems with queues, monitoring, and error recovery, or worked across programming languages.
• Experience with email development or interest in learning the space.

What it means to join the team Room to shape technical decisions and work closely with developers who use what you build. Remote teammates, shared learning, and a high bar for product quality and reliability.

Compensation: $130,000-$160,000 USD, commensurate with location and experience.