Abby Sassel is a Haskell engineer based in London with 11 years of experience building high-performance backend systems and developer tooling. She has driven production GraphQL engine work at Hasura and contributed Haskell fixes and ltree operator support to the widely used hasura/graphql-engine project. Abby's career spans startups, finance, and e-commerce—shipping features, performance-focused refactors, and CI/CD platforms while working across Haskell, PureScript, Clojure, and frontend stacks. She has led small teams and contractor engagements, and recently progressed into leadership and principal engineering roles at Artificial Labs. Known for marrying rigorous functional programming with pragmatic delivery, she also balances open-source contributions with applied product work. An early-first-class Computer Science graduate who worked full-time through her degree, Abby brings both depth in functional languages and a knack for turning complex problems into reliable, maintainable systems.
11 years of coding experience
12 years of employment as a software developer
Bachelor of Science (BSc), Computer Science, Bachelor of Science (BSc), Computer Science at Birkbeck, University of London
Blazing fast, instant realtime GraphQL APIs on all your data with fine grained access control, also trigger webhooks on database events.
Role in this project:
Back-end Developer
Contributions:3 reviews, 113 commits, 5 PRs in 1 year 11 months
Contributions summary:Abby's commits primarily focused on resolving issues related to the server-side logic, specifically addressing queries related to character column types and implementing support for ltree operators within the Hasura GraphQL engine. These changes involved modifications to the Haskell codebase, including updates to the SQL types, and adjustments to tests in Python. The user also updated documentation to reflect the addition of the new features.
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