Case Study: Fitch Solutions achieves 90% code coverage and zero downtime with Parasoft Jtest

Fitch Delivers High Code Coverage & Quality for Microservices Applications

Fitch Solutions, a global provider of credit intelligence used by major financial institutions, operates 200+ microservices (mostly Java Spring Boot) with a distributed team of 50+ developers. They struggled with frequent unplanned production outages (18 incidents in 2019), low unit test coverage (~20%) that left developers without feedback, and rigid two‑week release cycles that slowed feature delivery.

Fitch set a goal of 90% unit (line) coverage and applied a two‑pronged approach—retroactively building tests via a dedicated team and enforcing unit‑testing guidelines and quality gates for new work—while adopting Parasoft Jtest to measure coverage and accelerate test creation. Early results include portions of the estate reaching the 90% target, a 100‑day streak with zero downtime, a ~12% year‑over‑year increase in developer productivity, faster test creation, and less firefighting in production.

Fitch Solutions

Vince Recupito

Senior Software Engineer