Senior Frontend Engineer

2/2023 – 9/2024

Brought a Fintech greenfield Javascript, React, Typescript, Redux project from planing to production.

Quality insurance with Vitest unit-tests and Playwright end to end tests

Integrated the application into the DKB core banking as a Micro-Frontend with Webpack Module Federation.

Maintained constant communication with various stakeholders and team members.

Front End

1/2018 – 10/2022

- Built and shipped new core features and products for Doodle’s main scheduling application with over 30 million users per month

- Pioneered the first application written in Typescript at Doodle

- Mentored 2 engineers successfully from Junior to Mid-Level

- Helped to successfully hire 4 Frontend Engineers

- Onboarded many new engineers to get them productive as fast as possible.

- Led the front-end efforts of the Doodle Admin product from conception to release.

- Collaborated closely with design and business stakeholders.

- Planned and led production releases on a weekly basis.

- Reached and maintained over 90% test coverage on unit tests

- Built an automated integration test pipeline with Webdriver.io

- Implemented A/B tests to optimize the user experience and to improve conversion rates to Doodle premium plans.

- Built an internal React wrapper for Google Optimize that was used by 5 teams across Doodle.

- Implemented Client-side tracking with services like Amplitude and Google Analytics.

- Improved Doodle MRR to +150% YoY growth with those initiatives.

- Converted a monolithic Frontend (jQuery and Backbone) to a React-based Micro-frontend architecture.

Software engineering / -technik

1/2015 – 1/2018

- Built new features, increased performance and maintained the web platform of BMW digital Germany & Global.

- Created templates and reusable components with Handlebars.js and jQuery.

- Development of multiple web projects from creative concept to production. Including animated experiences with Greensock.js.

- Improved the front-end building pipeline with Webpack.

- Built pixel-perfect static sites for clients like BMW and Volkswagen with Handlebars, vanilla Javascript, and Bootstrap.

- Worked with various CMS systems and their APIs like Typo3, Joomla, and WordPress.

- Learned close cooperation with backend developers, designers, and product owners.

Software engineering / -technik