Maximilian Ripper is a Berlin-based full-stack software developer with a decade of experience building web systems and shipping polished front-end experiences. He has worked across startups and consultancies, contributing to product-focused teams at Mattermost (improving UX in the popular Playbooks plugin), AMPEERS ENERGY, Jovo, and now Join GmbH. Comfortable across the stack, he combines pragmatic UI work—styling, modals and hover interactions—with backend-facing full-stack responsibilities from his early freelance and project roles. Colleagues know him for steady, user-centric improvements that make workflows more reliable and approachable. He studied Applied Computer Science at HTW Berlin and often brings a systems-thinking approach to UX decisions that balance developer ergonomics with product needs.
10 years of coding experience
5 years of employment as a software developer
Bachelor of Science - BS Applied Computer Science, Bachelor of Science - BS Applied Computer Science at Hochschule für Technik und Wirtschaft Berlin
Mattermost Playbooks enable reliable and repeatable processes for your teams using checklists, automation, and retrospectives.
Role in this project:
Front-end Developer
Contributions:36 reviews, 36 commits, 48 PRs in 2 months
Contributions summary:Maximilian primarily contributed to the front-end components of the Mattermost Playbooks plugin. Their work involved fixing and improving the styling of assignee chips, allowing playbook import for first-time users, rephrasing the finish run confirmation dialog, and making UX of skipped tasks more consistent. Additionally, the user addressed hover effects within the playbook outline and implemented enhancements to the run configuration labels and the new run modal.
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.
Request Free Trial
Maximilian Ripper - Software Developer at Join GmbH