Cassia Scheffer
Staff Software Developer - Edge APIs at Wealthsimple
Canada
Summary
👤
Senior🎓
Top SchoolCassia Scheffer is a Staff Software Developer with 11 years’ experience building secure, high-performance backend systems and developer tooling, currently leading Edge APIs at Wealthsimple in Canada. She pairs hands-on engineering—reducing GQL gateway CPU by 80% while doubling RPS—with strategic leadership, having authored the 2025 engineering strategy and a 12-month roadmap for internal tools. Cassia specializes in GraphQL gateway frameworks, API security against injection attacks at the edge, and operationalizing AI workflows and developer tools across organizations. She has a strong platform engineering background from building teams and production health practices at Lillio and HomeStars, and she mentors engineers on security and performance best practices. Unusually for an engineer at her level, she also created an internal AI podcast to accelerate team adoption of AI-driven development. Her interdisciplinary education in rhetoric, communication design, and graphic/fine arts informs a pragmatic focus on developer experience and clear technical communication.
11 years of coding experience
11 years of employment as a software developer
Graphic Design, Graphic Design at George Brown PolytechnicWeb Development Ruby on Rails Web Development, Web Development Ruby on Rails Web Development at General Assembly CanadaFine and Studio Arts, Fine and Studio Arts at OCAD UniversityBachelor of Arts (B.A.) English with Linguistics Minor, Bachelor of Arts (B.A.) English with Linguistics Minor at University of AlbertaMaster of Arts (M.A.) Rhetoric and Communication Design, Master of Arts (M.A.) Rhetoric and Communication Design at University of Waterloo
Spanish
Github Skills (110)
bambora10
mvc10
ruby10
wrench10
stitch10
javascript10
graphql-api10
html10
graphql-tools10
rails-api10
rails10
graphql-js10
graphql-schema10
graphql10
api9
Programming languages (11)
Github contributions (5)
cassidycodes/cassidy.codes
Jan 2019 - Feb 2022
Personal Website Built with Hugo
Contributions:2 PRs, 46 pushes, 3 branches in 3 years 2 months
hugohugo-theme
cassidycodes/cassidycodes.github.io
Feb 2015 - Jan 2024
Contributions:235 pushes, 14 branches in 9 years
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