Software Engineer, Developer Tools

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Software Engineer, Developer Tools based in Brazil. This is a fully remote engineering role focused on building tools that make software integration simple, reliable, and intuitive for developers. You will work across SDKs, command-line tools, React Email, MCP, integrations, and the backend services that support them. The role combines strong backend engineering with a deep focus on developer experience, APIs, reliability, and interface design. You will help developers understand failures, integrate products into existing workflows, and confidently scale their applications. You will collaborate closely with product and engineering teams while also interacting directly with developers through support channels, GitHub issues, and pull requests. The environment values technical ownership, thoughtful feedback, high-quality execution, and continuous learning. You will have meaningful opportunities to influence technical decisions and take projects from discovery through production. Accountabilities - Build, maintain, and operate developer tools that simplify integrations across programming languages, frameworks, and development environments. - Develop backend services supporting developer tools, integrations, and related workflows. - Collaborate with product and engineering teams to establish clear API contracts and consistent behavior across SDKs, CLI tools, MCP, and documentation. - Build interfaces that developers and AI agents use to interact with the platform, including MCP, skills, and command-line tooling. - Manage compatibility, testing, releases, upgrades, and backward compatibility to ensure reliable developer experiences. - Create shared tooling that enables other engineering teams to confidently deliver changes across the developer tools ecosystem. - Work directly with developers through support interactions, GitHub issues, pull requests, and other feedback channels. - Take ownership of projects from discovery and solution design through implementation, release, and post-launch improvements.

- Contribute to reliability through appropriate handling of authentication, authorization, retries, idempotency, rate limits, monitoring, and partial failures. Requirements - Strong backend software engineering experience, including building and maintaining production APIs or services. - Professional experience with TypeScript and Node. js. - Solid understanding of authentication, authorization, retries, idempotency, rate limiting, and failure recovery. - Experience building software, libraries, APIs, or tools that other developers rely on in production. - Strong appreciation for developer experience, including intuitive interfaces, clear error messages, useful documentation, and backward compatibility. - Ability to approach AI agents as product users and consider their requirements around discovery, usability, and security. - Strong problem-solving skills and the ability to turn ambiguous problems into focused, practical solutions. - Clear communication skills, openness to feedback, and a strong sense of ownership and accountability. - Experience with open-source projects or external developer communities is a plus. - Experience building SDKs, CLI tools, MCP servers, or integrations between platforms is highly valued. - Familiarity with React or frontend build tooling is advantageous. - Experience operating systems involving queues, monitoring, and error recovery is a plus. - Exposure to multiple programming languages and an understanding of language-specific library design is beneficial. - Experience with email development or a strong interest in learning the email technology ecosystem is a plus. Benefits - Fully remote position, with eligibility for candidates based in Brazil.