The challenge
A decade-old assessment engine struggled at term start and blocked new features for instructors.
What we built
Using a strangler-fig approach, we carved out assessment delivery, grading and reporting into independent services while the legacy system kept running, backed by load tests replaying real term-start traffic.
The result
The new platform handled the busiest week of the year with headroom to spare, and instructors got new analytics features months ahead of plan.