Alex Walker
Senior Software Engineer at typedb
United Kingdom
Summary
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RockstarAlex Walker is a Senior Software Engineer with nine years' experience, currently contributing to TypeDB from the UK. He specializes in back-end development and test automation, notably adding BDD infrastructure and comprehensive Graql test coverage to the high-profile TypeDB (formerly Grakn) project. Alex blends deep database domain knowledge with pragmatic engineering—migrating integration tests to BDD, authoring new validation scenarios, and implementing features like "graql define throws" to harden rule and type semantics. Colleagues rely on him to turn complex language and reasoning requirements into reliable, automatable tests that improve long-term system correctness.
9 years of coding experience
Stackoverflow
2,346reputation
187kreached
84answers
4questions
Github Skills (24)
unit-testing10
edb10
testing10
java10
javas10
test-integration10
test-unit10
unit-test10
integration-testing10
databases9
knowledge-management9
knowledge-graph9
database9
reasoning9
test-automation8
Programming languages (13)
Github contributions (5)
typedb/typedb
Jun 2020 - Sep 2022
TypeDB: the power of programming, in your database
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:66 reviews, 96 commits, 94 PRs in 2 years 3 months
Contributions summary:Alex primarily contributed to the Grakn Core project by adding BDD (Behavior-Driven Development) infrastructure and tests, specifically focusing on the Graql language. Their work involved implementing new BDD scenarios, integrating them with existing test frameworks, and migrating existing tests from integration tests to BDD. They introduced new functionalities like "graql define throws" and ensured test coverage for rule validation, type generation, concept inequality, and other critical functionalities within the TypeDB database.
hyper-relationalknowledge-baseknowledge-graphagdagraph-theory
vaticle/typedb-driver-rust
Feb 2022 - Nov 2022
TypeDB Driver for Rust
Contributions:1 release, 8 reviews, 68 commits in 9 months
rusttypedb-clientdrivertypedb
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