Sean Molenaar

Anything problematic excites me, smooth sailing just sounds boring. This is why I enjoy speeding up processes by finding or creating the right tools for the job.

General Info

Sean Molenaar

What do I excell at

8 /10

PHP Development

Writing APIs and web platforms

7 /10

System Administration

Using SaltStack and other tools to maintain the cattle

9 /10

Continuous integration

Setting up and maintaining CI for everyone


  • 2018-Present


    News app Maintainer (volunteer)

    The Nextcloud News app is an RSS/Atom feed aggregator for [Nextcloud Hub]( It offers a RESTful API for app developers. The source code is available on [GitHub](

  • 2017-Present


    Maintainer (Volunteer)

    Ever since one of the homebrew-php maintainers didn't work fast enough for my taste I've been helping out with the project. First as homebrew-php maintainer and later as homebrew-core maintainer. Serving on the Project Leadership Comittee since February 2020.

  • 2015-Present


    Backend Engineer

    Backend/DevOps engineer using SaltStack, Jenkins and PHPStorm to help lift M2mobi and the teams I'm part of to the next level.

  • 2012-2014


    Full stack developer

    PHP and jQuery frontend development with Wordpress


  • 2018

    Contentful Certification


    Day course to learn everything about contentful

  • 2013-Present

    Software engineering


    Studying for a Bachelors of Science in Software engineering


Here's the projects that I'm trying to brag about. Most of them are just for me to scratch an itch and aren't likely to ever grow beyond that. I still enjoy them though and they give a nice example of my skills.


Since halfway through 2018 I've been a maintainer for the Homebrew package manager for macOS. In this role I've helped ship of thousands of software upgrades for major parts of peoples workflow. In addition to keeping macOS developers' systems up to date I also lead the discourse support forum.

Hong Kong International Airport (HKIA)

Hong Kong International Airport (HKIA) is one of the top 15 busiest airports in the world, and they are cargo airport number 1. Starting in 2019, the M2mobi team has been working on a complete rework of their mobile application and I've been glad to be part of it. With bi-monthly local meetings that quickly turned into many virtual meetings, we've truly delivered a result that we can be proud of. If you want to interact with some of my work, make sure to check out the announcement, inbox, MyTag and notifications. See more: [](

Nextcloud news

Over the past few years I've made numerous contributions to the nextcloud projects RSS reader app. As an avid user I've implemented security fixes and under-the-hood improvements I thought were important for my continued usage. This is in my eyes how open-source should be done, everyone scratching their own itch.


With Android and iOS Burgernet, 2.4 million people keep their eyes open for missing or suspicious persons. Getting only messages that are relevant for them, after taking over the project from another company M2mobi worked hard to get the app up to modern standards for both code and performance. Unfortunately the Facebook Messenger bot I wrote for them got killed by new rules for bots, but the performance of the app is still going strong. See more: [](


Made an Apiblueprint renderer in PHP based on the drafter tool by apiary. All of the existing tools were missing something so I wrote my own version. This has been used by M2mobi to replace the old docbooks since it's inception with very positive responses from both api consumers and writers.

Personal website

This website is made using the finest SDKs, in particular the contentful SDK. It serves all the data and the localization and this website is just a view using some JS, CSS and PHP.