# Resend Expands Core Mail Infrastructure as Cloud Platforms Circle **Author:** Zero G Talent **Published:** 2026-10-23 **Category:** software **Tags:** yc-hiring [Read on Zero G Talent](https://zerogtalent.com/blog/resend-expands-core-mail-infrastructure-as-cloud-platforms-circle) --- [Resend](https://zerogtalent.com/ai-companies/resend) is beefing up its core mail transfer agent (MTA) and platform engineering teams as the transactional email market draws direct competition from big infrastructure providers. The San Francisco-headquartered startup, founded in 2023 out of Y Combinator’s W23 batch, has grown to 63 employees on the back of its Series A round led by [Andreessen Horowitz](https://a16z.com/podcast/automating-developer-email-with-mcp-and-al-agents/). Resend provides an email API and platform built around React.js and serverless environments, letting software engineers build, test, and send transactional emails programmatically. Its toolset includes features like dedicated IPs for deliverability and integration with React Email, an open-source framework for building email templates with React components. The developer email category has seen renewed heat from major cloud infrastructure players. When Cloudflare introduced its own globally managed email service in late 2025 to rival services from Amazon SES, SendGrid, and Resend, [infoq.com](https://www.infoq.com/news/2025/10/cloudflare-email-service/) reported that Resend chief executive [Zeno Rocha](https://zenorocha.com) welcomed the challenge on social media: "Email is not a winner-takes-all kind of market, and that's why we've been able to enter such a competitive space and still thrive. Competition is good because it forces the best product to win." ## Shifting Focus to Agent Experience Resend’s roadmap has extended into how automated systems interact with email infrastructure. In an episode of the AI + a16z podcast hosted by [Andreessen Horowitz](https://a16z.com/podcast/automating-developer-email-with-mcp-and-al-agents/), Rocha outlined the transition from traditional developer experience (DX) to "agent experience" (AX), examining how large language model-driven agents and the Model Context Protocol (MCP) are changing how software sends, parses, and monitors communications. That direction aligns with the company's current engineering buildout, which prioritizes APIs capable of operating smoothly under automated workloads while maintaining sender reputation. ## Operator-Led Foundations The company was founded by two technical operators with shared histories in developer tooling: - [Zeno Rocha](https://zerogtalent.com/people/zeno-rocha), CEO: Originally from Brazil and now based in San Francisco, Rocha was previously Vice President of Developer Experience at WorkOS and Chief Product Officer at Liferay Cloud. He holds a degree in Information Systems from the Universidade Federal do Estado do Rio de Janeiro, created the widely used Dracula code syntax theme, and is an angel investor in developer tools companies such as Gumroad and Fig. - [Bu Kinoshita](https://zerogtalent.com/people/bu-kinoshita), Co-Founder & Software Engineer: Kinoshita was the first engineering hire at WorkOS, where he built the initial MVP and helped scale it to serve more than 200 B2B SaaS customers. Based in Brazil, he created over 100 open-source Node packages and built the open-source products Taskr and Secret before co-founding Resend and leading work on react.email. ## How Resend Is Hiring Resend has 14 open roles distributed evenly between the Americas and Europe. All roles operate fully remote and post explicit, narrow salary bands. Engineering accounts for 12 of the 14 openings, signaling a focus on backend mail delivery systems, application security, and platform stability rather than aggressive sales expansion. To harden deliverability and message queues, the team is hiring a [Backend Engineer, MTA](https://zerogtalent.com/ai-jobs/resend/backend-engineer-mta-c4c5eb8c-e6ac-49f5-9dc7-a68ce0948929) in Europe and another [Backend Engineer, MTA](https://zerogtalent.com/ai-jobs/resend/backend-engineer-mta-core-sending-053bde8f-294e-4cce-9d62-2301282120a2) in the Americas. The company is also scaling its trust mechanisms and core developer workflows, looking for a [Software Engineer, Trust & Safety](https://zerogtalent.com/ai-jobs/resend/software-engineer-trust-safety-729ad3fa-10a2-4a07-ba9c-13b6eec6adb1) alongside a [Software Engineer, Developer Tools](https://zerogtalent.com/ai-jobs/resend/software-engineer-developer-tools-53d3710a-2d55-42ac-ba90-cdfd306bf560). On the customer-facing side, Resend keeps a lean go-to-market structure, with single positions open for a Technical Account Executive and a Customer Success Engineer. ## Open Roles | Role | Location | Work Mode | Salary | | :--- | :--- | :--- | :--- | | [Technical Account Executive](https://zerogtalent.com/ai-jobs/resend/technical-account-executive-50cc0eb8-4a93-455d-bcdb-fe8eb080b55d) | Americas | Remote | $160,000 – $220,000 USD / year | | [Backend Engineer](https://zerogtalent.com/ai-jobs/resend/software-engineer-backend-6589bee8-3ec9-4620-90b6-890b23464c4d) | Europe | Remote | $140,000 – $180,000 USD / year | | [Backend Engineer](https://zerogtalent.com/ai-jobs/resend/software-engineer-backend-df2fe05d-87ca-4e87-a66d-50bb2c9c4859) | Americas | Remote | $140,000 – $180,000 USD / year | | [Platform Engineer](https://zerogtalent.com/ai-jobs/resend/platform-engineer-76dcf582-cf8b-49dd-899b-d453d6af430e) | Europe | Remote | $150,000 – $180,000 USD / year | | [Platform Engineer](https://zerogtalent.com/ai-jobs/resend/platform-engineer-a9fc1d02-cace-4be9-8d3d-16f4fb137b39) | Americas | Remote | $150,000 – $180,000 USD / year | | [Software Engineer, Trust & Safety](https://zerogtalent.com/ai-jobs/resend/software-engineer-trust-safety-729ad3fa-10a2-4a07-ba9c-13b6eec6adb1) | Americas | Remote | $150,000 – $175,000 USD / year | | [Software Engineer, Trust & Safety](https://zerogtalent.com/ai-jobs/resend/software-engineer-trust-safety-73a37f4c-02d9-40e4-a116-70507ed413b9) | Europe | Remote | $150,000 – $175,000 USD / year | | [Backend Engineer, MTA](https://zerogtalent.com/ai-jobs/resend/backend-engineer-mta-c4c5eb8c-e6ac-49f5-9dc7-a68ce0948929) | Europe | Remote | $150,000 – $170,000 USD / year | | [Backend Engineer, MTA](https://zerogtalent.com/ai-jobs/resend/backend-engineer-mta-core-sending-053bde8f-294e-4cce-9d62-2301282120a2) | Americas | Remote | $150,000 – $170,000 USD / year | | [Software Engineer, Developer Tools](https://zerogtalent.com/ai-jobs/resend/software-engineer-developer-tools-2e3d92c5-79d9-4511-8faf-e2326e7a081e) | Europe | Remote | $130,000 – $160,000 USD / year | | [Software Engineer, Developer Tools](https://zerogtalent.com/ai-jobs/resend/software-engineer-developer-tools-53d3710a-2d55-42ac-ba90-cdfd306bf560) | Americas | Remote | $130,000 – $160,000 USD / year | | [Security Engineer, Platform](https://zerogtalent.com/ai-jobs/resend/security-engineer-platform-8c290ac4-22b4-4072-86e0-b6f5a97213d6) | Europe | Remote | $140,000 – $160,000 USD / year | | [Security Engineer, Platform](https://zerogtalent.com/ai-jobs/resend/security-engineer-platform-cde17f7c-4c70-435f-be38-ef5abe94ff22) | Americas | Remote | $140,000 – $160,000 USD / year | | [Customer Success Engineer](https://zerogtalent.com/ai-jobs/resend/customer-success-engineer-01e6eb42-142b-4f33-9944-ca153bd3ae86) | Americas | Remote | $120,000 – $140,000 USD / year | [See all open roles at Resend](https://zerogtalent.com/ai-companies/resend) --- *Source: [Zero G Talent](https://zerogtalent.com), the job board for space, defense, AI, robotics and frontier-tech companies.*