Software Engineer, Developer Tools

Resend; Ireland; Remote; EUR 70,000 - 95,000; Full time

Job summary

Resend is building tools that make email better for developers. On the DevTools Squad, you’ll work across our SDKs, React Email, CLI, MCP, and integrations, alongside the backend services that support them.

In this role, you will build and operate services that support our developer tools, collaborate on API contracts, and help keep Resend’s developer-facing interfaces reliable and well-documented for teams worldwide.

Qualifications

• Strong backend engineering experience with production APIs or services.
• Experience with TypeScript and Node.js.
• Understanding authentication, authorization, retries, idempotency, rate limits, and partial failures.
• Experience building developer-facing tools and maintaining backward compatibility.

Responsibilities

• Build and maintain developer tools across languages and frameworks.
• Build and operate services that support developer tools and integrations.
• Collaborate on clear API contracts and consistent behavior across SDKs, CLI, MCP, and docs.
• Create interfaces used by developers and agents to work with Resend.
• Ensure compatibility, testing, releases, and upgrades so developers can depend on Resend.
• Develop shared tooling to help other squads ship changes confidently.

Skills

Backend engineering

TypeScript

Node.js

APIs

Documentation

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. On our DevTools Squad, you’ll work across our SDKs, React Email, CLI, MCP, and integrations, alongside the backend services that support them. Your work will help developers build within their existing workflows, understand failures, and confidently depend on Resend as their applications grow.

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.

In this role, you will…

• Build and maintain developer tools that make Resend easy to integrate with across languages, frameworks, and environments
• Build and operate services that support our developer tools and integrations
• Collaborate with product squads on clear API contracts and consistent behavior across SDKs, CLI, MCP, and documentation
• Build the interfaces developers and agents use to work with Resend, such as MCP, skills, and the CLI
• Take care of compatibility, testing, releases, and upgrades so developers can depend on what we ship
• Build shared tooling that helps other squads ship changes across our developer tools confidently
• Work directly with developers through support, GitHub issues, and pull requests

You will be a great fit if you…

• Have strong backend engineering experience, including building and maintaining APIs or services in production.
• Are experienced in TypeScript and Node.js
• Understand authentication, authorization, retries, idempotency, rate limits, and partial failures
• Have built software that other developers depend on and understand the responsibility of maintaining it
• Care about interface design, clear errors, useful documentation, and backward compatibility
• Think about agents as users of a p