Joey Marshment-howell is a Full Stack Engineer with 11 years of experience building thoughtful, user-focused web products from Berlin. He has owned complex web applications at scale—most recently leading the Airbyte webapp where he delivered features across connector setup, auth, observability and enterprise capabilities using React, TypeScript and Kotlin. Joey blends front-end craft (UX, accessibility, performance) with pragmatic backend work, contributing notable open-source frontend improvements to the popular Airbyte platform like LaunchDarkly feature scoping and onboarding experiments. He’s worked across fintech and SaaS at Trade Republic and Maze, led a high-growth recruiting product, and has a background that mixes international studies and environmental science with deep technical practice. Colleagues describe him as a developer who cares about long-term maintainability and shipping delightful, secure experiences.
10 years of coding experience
9 years of employment as a software developer
BA, International Studies, Environmental Science, German, BA, International Studies, Environmental Science, German at University of Wisconsin-Madison
The leading data integration platform for ETL / ELT data pipelines from APIs, databases & files to data warehouses, data lakes & data lakehouses. Both self-hosted and Cloud-hosted.
Role in this project:
Front-end Developer
Contributions:380 reviews, 146 commits, 162 PRs in 3 months
Contributions summary:Joey primarily contributed to the front-end of the Airbyte web application. Their work includes implementing an experiment to hide the onboarding process, which required modifications to cloud routes and sidebar components. Further contributions involved client-side validation of cron expressions, adding a datepicker for date/time fields within the connector form, and refactoring components. The commits indicate a focus on improving the user interface and connection configuration experience.
The platform that powers Airbyte. Please file issues in https://github.com/airbytehq/airbyte
Role in this project:
Full-stack Developer
Contributions:14 reviews, 23 commits, 13 PRs in 1 month
Contributions summary:Joey contributed to the Airbyte platform's web application, primarily focusing on frontend development. They implemented features related to LaunchDarkly integration, specifically scoping flags and experiments to workspaces. They also made adjustments to the cloud routes, settings, and user interfaces, demonstrating a range of work across various components. Furthermore, they refactored code and removed unnecessary elements, contributing to code quality and maintainability.
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Joey Marshment-howell - Full Stack Engineer at Maze