What it’s like to be a developer evangelist

What is a Developer Evangelist? Just what is this hybrid developer-marketer role?

Hermes with a coffee in office



API (Application Programming Interface). Developer Experience (DX). You may or may not have heard of these terms before, but they are heavily used in the SaaS (software-as-a-service) industry. Developers use APIs to build off existing products and innovate new ideas. APIs allow companies to easily integrate with apps that bring in expertise where the company themselves may be lacking resources or would be costly to produce in-house.

To help companies better communicate with their developer users, a new role has emerged in the past few years: Developer Evangelists. A hybrid developer-marketer role, DevEvs act as a translator between their company and technical users. They travel the world to meet with awesome developers, catch up on latest trends and better understand how to develop products in a way that can make it easier for them to do their jobs.

The role is still evolving and varies slightly from company to company, but to give you a better idea of what a Developer Evangelist looks like in action, we compiled an infographic of what the Mailjet team did in 2014.


At Mailjet, coding is in the backbone of our culture - our co-founder Julien Tartarin is a developer. From day one our platform was built on top of our own API (“eating your own dog food” as developers say) and made public and free for all developers to use.

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