Senior Frontend Engineer

2/2023 – 12/2024

Led the development of a greenfield banking project using JavaScript, React, TypeScript, and Redux, taking it from planning to successful production launch.

Designed and implemented the architecture for the Contentful CMS data model, seamlessly integrating it into the web application.

Ensured high-quality code through comprehensive testing, utilizing Vitest for unit tests and Playwright for end-to-end testing.

Integrated the application into the DKB core banking system as a micro-frontend using Webpack Module Federation.

Contributed to a large-scale Vue/Nuxt application, enhancing customer onboarding workflows

CSS (Cascading Style Sheet), HTML5, JavaScript, React (JavaScript library), Vue.Js, 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