Tijmen Brommet
Senior Software Engineer at CaptionHub
Amsterdam, North Holland, Netherlands
Summary
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RockstarTijmen Brommet is a senior software engineer with 15 years of experience building and leading product-focused engineering teams, currently driving the live captioning product at CaptionHub. He brings deep Ruby on Rails and full-stack expertise (Vue.js, PostgreSQL, Redis, AWS, Docker) combined with hands-on media tooling experience like HLS and ffmpeg. Previously he scaled engineering groups at the UK Department for Education and led technical strategy for large GOV.UK teams at GDS, improving search, architecture and developer productivity. Tijmen also has a long freelance background shipping web products and has founded and exited startups, giving him a pragmatic product sensibility alongside technical depth. He contributes to open-source tooling—example work includes refactoring a Slack bot to use GitHub search for PR discovery and adding debug modes to improve operability. Based in Amsterdam, he blends engineering leadership, mentoring and practical refactoring skills to pay down tech debt and accelerate delivery.
15 years of coding experience
13 years of employment as a software developer
English, Dutch
Github Skills (16)
activerecord10
data-migration10
ruby-rails10
rails10
octokit10
github-api10
ruby10
postgresql9
slack-api9
shell8
script8
sh8
scripting8
automated-tests7
githubaction-workflow5
Programming languages (20)
Github contributions (5)
binaryberry/seal
Jul 2015 - Apr 2018
This is a Slack bot that publishes a team's pull requests to their Slack Channel, once provided the organisation name, the team members' github names, and a list of repos to follow. It is my first 20% project at GDS.
Role in this project:
Backend Developer
Backend DeveloperContributions:84 commits, 76 PRs, 47 pushes in 2 years 9 months
Contributions summary:Tijmen primarily focused on improving the `seal` Slack bot's functionality. Their work involved refactoring the code to use GitHub search to retrieve pull requests, replacing the need to manually configure repositories. They implemented a "dry-seal" mode for easier debugging. Additionally, the user made adjustments to the morning seal script, including adding and removing teams, and adjusting the frequency of the automated jobs.
gdsdevopsfollowbotslack-bot
alphagov/whitehall
Jul 2015 - Feb 2019
Publishes government content on GOV.UK
Role in this project:Back-end Developer
Back-end DeveloperContributions:234 commits, 234 PRs, 256 pushes in 3 years 7 months
Contributions summary:Tijmen's commits primarily involved refactoring and modifying codebase related to the GOV.UK publishing platform. They removed features such as detailed guide categories, replaced the use of CSS-based ERDF logo display with a database-driven approach, and updated the database to use a static ERDF logo from asset manager. Further contributions included adding data migrations, refactoring code to use better document types, and improvements to search functionalities by modifying existing models and controllers. The commits highlight a focus on maintaining and improving core functionalities of the system.
govgovuk-publishing-frontendgovukgovernmentcontainer
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