---
title: "Welcoming Diel Duarte, our new Open source Engineer"
description: "Resend introduces Diel Duarte as its new open source engineer, bringing more than 13 years of experience building web applications and SDKs. His focus is developer experience, especially API design with clean ergonomics that lets developers concentrate on building rather than wrestling with interfaces. Diel describes a path from studying programming and computer fundamentals at Cotemig to following Resend as a user and joining after an interview process he found unusually human; he cites Resend’s DX and craft, along with Zeno’s open source work, as major references. Outside work, he draws inspiration from deliberately curated feeds, new languages and APIs, visual-design communities, and creator friends, while keeping music and interior design as interests; he names Warp Terminal as his favorite tool and Japan as a memorable destination."
---

# Welcoming Diel Duarte, our new Open source Engineer

[Resend](https://yomu.fyi/company/resend) · Apr 30, 2026

**Type:** Announcement

## Summary

Resend introduces Diel Duarte as its new open source engineer, bringing more than 13 years of experience building web applications and SDKs. His focus is developer experience, especially API design with clean ergonomics that lets developers concentrate on building rather than wrestling with interfaces. Diel describes a path from studying programming and computer fundamentals at Cotemig to following Resend as a user and joining after an interview process he found unusually human; he cites Resend’s DX and craft, along with Zeno’s open source work, as major references. Outside work, he draws inspiration from deliberately curated feeds, new languages and APIs, visual-design communities, and creator friends, while keeping music and interior design as interests; he names Warp Terminal as his favorite tool and Japan as a memorable destination.

## Context

Diel Duarte is introduced as Resend’s new open source engineer. The announcement presents his professional background, developer-experience focus, route into programming, reasons for joining Resend, sources of inspiration, favorite tool, interests, and advice for software engineers.

## Takeaways

- Diel learned programming and computer fundamentals at Cotemig after initially planning to pursue music, then developed a lasting interest in how computers work.
- He favors APIs with clean ergonomics that stay out of developers’ way, and names Warp Terminal for its speed and developer-experience improvements over his previous terminal.
- His advice to ambitious software engineers is to experiment broadly, identify what brings the most happiness and pleasure, and double down on it repeatedly.

## FAQ

### What does Diel prioritize when designing APIs?

He prioritizes clean ergonomics and believes the best APIs get out of the way. That lets developers focus on building instead of managing awkward interfaces.

### Why did Diel want to join Resend?

He had followed Resend since its early days and used it himself, viewing it as a reference for developer experience and craft. During the interviews, he was also struck by the team’s human approach and felt welcomed as a person, not only evaluated for output.

### What terminal workflow does Diel prefer?

His favorite tool is Warp Terminal, which he values for its developer experience, speed, and ease of use. He uses Cmd + space to open it over any application.

**Tags:** [API](https://yomu.fyi/topic/api), [Developer Experience](https://yomu.fyi/topic/developer-experience), [Open Source](https://yomu.fyi/topic/open-source)

- Source: [Resend](https://resend.com/blog/welcoming-diel-duarte)
- Source URL: https://resend.com/blog/welcoming-diel-duarte
- Ingested by Yomu: 2026-09-19T09:54:28.689Z

[Read original post](https://resend.com/blog/welcoming-diel-duarte)