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Case StudyTestBuddy8 min readJuly 14, 2026

How a fintech team cut regression cycles by 60% with TestBuddy

36-hour suites → 14 hours. Twice the ships.

PN

Priya Natarajan

Head of QA Practice

When release cadence outpaced manual regression, this Series B fintech needed coverage that could keep up without hiring an army of testers. TestBuddy became the orchestration layer across their microservices stack.

Client

Confidential payments platform (Series B)

Industry

Financial Services

−60%

Regression runtime

−42%

Escaped defects

Release frequency

+85%

Coverage breadth

The challenge

Fourteen microservices, twice-weekly releases, and a regression suite that took 36 hours to run. Flaky tests eroded trust; critical payment flows were under-covered.

The solution

Apex Node deployed TestBuddy to map user journeys, generate targeted E2E specs, and run parallel suites in CI. Sentinel joined the pipeline for security checks on every PR.

Mapping the payment graph

TestBuddy started by ingesting API contracts and staging traffic patterns. Within a week, it produced a workflow map across checkout, settlement, and reconciliation — surfaces the team had never fully automated.

Human QA leads reviewed and approved generated scenarios before they entered the nightly pipeline, preserving domain expertise while eliminating script maintenance toil.

CI integration without disruption

Rather than a big-bang migration, suites rolled out service-by-service. Failed runs surfaced with Prism-generated summaries so developers could act in minutes, not days.

We stopped debating whether we could ship — we started debating what to ship next.
FintechRegressionE2E Testing