Tessa Walsh - Senior Applications And Tools Engineer

Tessa Walsh

Senior Applications And Tools Engineer

Montreal, Quebec, Canada

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Summary

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Rockstar

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Top School

Tessa Walsh is a senior applications and tools engineer with 11 years of experience at the intersection of software engineering and digital preservation, based in Montreal. She builds and maintains open-source archiving tools—contributing strong full-stack expertise in Python, FastAPI, Node/TypeScript, Vue, Docker and Kubernetes—while also owning documentation, roadmapping, and accessibility improvements. Her work on projects like browsertrix-crawler and pywb includes pragmatic features such as ad-blocking request interception, robust screenshot options, and responsive, accessible UI enhancements that improve real-world archive replay and capture. Prior roles in academic and cultural institutions give her deep domain knowledge of born-digital workflows, forensics, and preservation policy, which she pairs with hands-on engineering to solve operational archival problems. Notably, she has moved projects from prototypes to production-ready toolchains—adding test coverage, localization fixes, and cloud storage integrations that make long-term preservation systems more reliable and scalable.

11 years of coding experience

5 years of employment as a software developer

MS, Library & Information Science, MS, Library & Information Science at Simmons College

BA, English, BA, English at University of Florida

English, French

Github Skills (22)

puppeteer10

javascript10

web-crawler10

archiving10

testing10

css10

archives10

crawling10

webar10

webarchive10

html10

nodejs10

vue-jsx10

bootstrap9

Programming languages (13)

JavaC++JinjaMakefileGoHTMLPerlTypeScript

Github contributions (5)

webrecorder/browsertrix-crawler

Oct 2022 - Jan 2023

Run a high-fidelity browser-based web archiving crawler in a single Docker container

Role in this project:

Full-stack Developer

Contributions:280 reviews, 18 commits, 82 PRs in 3 months

Contributions summary:Tessa significantly contributed to the `browsertrix-crawler` project by implementing new features and enhancing existing functionalities. This included the addition of ad-blocking capabilities via request interception, integrating a host-based ad-blocking mechanism. The user also implemented screenshot functionality, providing options for view, fullPage, and thumbnail screenshots, and incorporated improved JSON-L logging for more detailed and organized log entries. They also added test cases to validate the functionalities implemented.

high-fidelitybrowserweb-crawlerdockerdocker-container

webrecorder/pywb

Jul 2022 - Jan 2023

Core Python Web Archiving Toolkit for replay and recording of web archives

Role in this project:

Front-end Developer

Contributions:4 releases, 26 reviews, 28 commits in 6 months

Contributions summary:Tessa focused on enhancing the user interface of the pywb project. They reworked the Vue banner UI, making it responsive with Bootstrap 4 and adding features like year/month navigation and customizable colors. Further improvements included accessibility enhancements and fixes to snapshot navigation and content flashing issues. Additionally, the user addressed issues with the display of archived content and localization aspects.

pythonreplaypython-webpywbweb-archiving

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