Project

Details

There was a hairy stateful Rasch model implementation at the core of CUPA's adaptive assessment engine, which was a regular source of bugs, friction, and uncertainty. I gave this area of the code a complete overhaul - improved testing procedures, extracted logic into well-named, pure functions, refactored it according to clean code principles, and fixed longstanding bugs - before implementing several desired changes with confidence.

Outcome

Improved test coverage; improved code readability and maintainability; enabled very fast generation of regression tests by going through assessment sessions as a student.

Project

Details

A large suite of assessments needed rebranding from the old CEM brand. This involved thousands of changes to XML files to update X/Y coordinates to position canvas elements, which I was delighted to devise a pragmatic set of automations for.

I coordinated the work with four developers from Cambridge's Manila offices, reviewing their work and providing knowledge-sharing sessions and general guidance.

Outcome

Improved UI, UX, and accessibility across Cambridge Secondary Insight assessment suite.

Project

Details

Designing, implementing, and documenting an efficient workflow for processing wav files from a recording studio into optimised mp3 sprites for audio content. This involved trimming and applying loudness normalisation to each clip in Audacity.

Outcome

Scottish version of primary assessment created. Audio sprite generation process documented.

Project

Details

Upgraded package versions and tooling, applying fixes where necessary.

Outcome

Assessment engine now using recent versions of Node, TypeScript, and Webpack. Minor bugs identified and fixed across the codebase.