Laetitia Fesselier
Senior Software Engineer at Lasso Informatics
Montreal, Quebec, Canada
Summary
👤
Senior🎓
Top SchoolLaetitia Fesselier is a senior software engineer with over a decade of experience building scalable, reproducible pipelines and platforms for multimodal neuroscience data, specializing in MRI, EEG and biospecimen workflows. She designs end-to-end systems—APIs, interactive UIs, containerized pipelines and delta-based versioning—that enable large-scale, BIDS-compliant data ingestion, validation and public releases across multisite studies. Comfortable across full-stack and scientific computing (Python, Java, React), she blends a strong engineering discipline with UX and graphic design sensibilities to prioritize intuitive, accessible researcher tools. At Lasso Informatics and McGill she’s delivered production-grade infrastructure for harmonized, queryable datasets and automated release processes that support open science at scale. Her contributions to long-running projects like the LORIS research data platform emphasize maintainability and testability, reflecting a focus on sustainable software for reproducible science. Based in Montreal, she pairs rigorous technical execution with close collaboration with domain experts and end users to keep solutions practical and evolving.
8 years of coding experience
11 years of employment as a software developer
Master of Arts, Graphic Design, Master of Arts, Graphic Design at ECV Creative Schools & CommunityB.Sc. Honours, Software Engineering, 3.9/4, B.Sc. Honours, Software Engineering, 3.9/4 at McGill University
English, French
Github Skills (10)
unit-testing10
php10
web-development10
web-application10
webapp10
mysql9
sql-database9
sql9
mysql-database9
mysql-db9
Programming languages (8)
Github contributions (5)
aces/Loris
Mar 2020 - Jan 2023
LORIS is a web-accessible database solution for longitudinal multi-site studies.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:404 reviews, 176 commits, 362 PRs in 2 years 9 months
Contributions summary:Laetitia primarily focused on updating and refactoring code within the LORIS web application. Their commits included refactoring methods within multiple modules such as acknowledgements, dashboard, issue tracker, and publication. Their work involved updating User::singleton() declarations to facilitate unit testing throughout various code sections, indicating a focus on code maintainability and testability within the LORIS project.
multi-siteneuroimagingscienceaccessibleloris
aces/react-series-data-viewer
Sep 2020 - Oct 2021
View one dimensional multi trace signals along with their annotated epochs using a single react component.
Contributions:1 release, 4 PRs, 26 pushes in 1 year
react-componentmulti-dimensionalreacttracedimensional
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